Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6403_us	March 20, 2024, 7:56 a.m.	March 20, 2024, 8:02 a.m.

Size	16.3KB
Type	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5	`2644dec48ca3539cfc4a7b4dba0bd212`
SHA256	`ea7efe5b685adb6324eea4717d5a9ef0c09c0222acc527d3bff2dc752d0cdcf9`
CRC32	`00A8D46D`
ssdeep	`384:l6IyZLpL3LxYLTL62cpOgAM+o/8E9VF0NyA1epRJ:l6rZFz1Yn3cpOgAMxkEnV`
PDB Path	C:\Work\Sources1\Loader\Loader\obj\Debug\Loader.pdb
Yara	PE_Header_Zero - PE File Signature IsPE32 - (no description) Antivirus - Contains references to security software Is_DotNET_EXE - (no description) Generic_Malware_Zero - Generic Malware

RtkAudUKZ1.exe "C:\Users\test22\AppData\Local\Temp\RtkAudUKZ1.exe"
2040

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
193.233.132.11	Active	Moloch

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Checks if process is being debugged by a debugger (2 events)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent March 20, 2024, 7:49 a.m.			0	0
IsDebuggerPresent March 20, 2024, 7:49 a.m.			0	0

This executable has a PDB path (1 event)

pdb_path

C:\Work\Sources1\Loader\Loader\obj\Debug\Loader.pdb

Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available (1 event)

Time & API	Arguments	Status	Return	Repeated
GlobalMemoryStatusEx March 20, 2024, 7:49 a.m.		1	1	0

One or more processes crashed (1 event)

Time & API	Arguments	Status	Return	Repeated
__exception__ March 20, 2024, 7:49 a.m.	stacktrace: 0x7fe93f6035d CoUninitializeEE+0x4c56f GetMetaDataInternalInterface-0x2b1ad clr+0x4f713 @ 0x7fef35ff713 CoUninitializeEE+0x4c09e GetMetaDataInternalInterface-0x2b67e clr+0x4f242 @ 0x7fef35ff242 CoUninitializeEE+0x4c167 GetMetaDataInternalInterface-0x2b5b5 clr+0x4f30b @ 0x7fef35ff30b _CorExeMain+0x335c ClrCreateManagedInstance-0x15ae4 clr+0x1e721c @ 0x7fef379721c _CorExeMain+0x3ab6 ClrCreateManagedInstance-0x1538a clr+0x1e7976 @ 0x7fef3797976 _CorExeMain+0x39b0 ClrCreateManagedInstance-0x15490 clr+0x1e7870 @ 0x7fef3797870 _CorExeMain+0x3526 ClrCreateManagedInstance-0x1591a clr+0x1e73e6 @ 0x7fef37973e6 _CorExeMain+0x347e ClrCreateManagedInstance-0x159c2 clr+0x1e733e @ 0x7fef379733e _CorExeMain+0x14 ClrCreateManagedInstance-0x18e2c clr+0x1e3ed4 @ 0x7fef3793ed4 _CorExeMain+0x5d CLRCreateInstance-0x2bd3 mscoreei+0x74e5 @ 0x7fef3f974e5 _CorExeMain+0x69 ND_RU1-0x1707 mscoree+0x5b21 @ 0x7fef4035b21 BaseThreadInitThunk+0xd CreateThread-0x53 kernel32+0x1652d @ 0x76fd652d RtlUserThreadStart+0x21 strchr-0x3df ntdll+0x2c521 @ 0x776ec521 exception.instruction_r: 80 38 00 48 8b 4d 58 41 b9 04 00 00 00 e8 d9 67 exception.instruction: cmp byte ptr [rax], 0 exception.exception_code: 0xc0000005 exception.symbol: exception.address: 0x7fe93f6035d registers.r14: 0 registers.r15: 0 registers.rcx: 2813904 registers.rsi: 0 registers.r10: 0 registers.rbx: 0 registers.rsp: 2816992 registers.r11: 2810912 registers.r8: 37433248 registers.r9: 0 registers.rdx: 37433200 registers.r12: 0 registers.rbp: 0 registers.rdi: 0 registers.rax: 0 registers.r13: 0	1	0	0

Time & API

Arguments

Status

Return

Repeated

__exception__

March 20, 2024, 7:49 a.m.

stacktrace:

0x7fe93f6035d
CoUninitializeEE+0x4c56f GetMetaDataInternalInterface-0x2b1ad clr+0x4f713 @ 0x7fef35ff713
CoUninitializeEE+0x4c09e GetMetaDataInternalInterface-0x2b67e clr+0x4f242 @ 0x7fef35ff242
CoUninitializeEE+0x4c167 GetMetaDataInternalInterface-0x2b5b5 clr+0x4f30b @ 0x7fef35ff30b
_CorExeMain+0x335c ClrCreateManagedInstance-0x15ae4 clr+0x1e721c @ 0x7fef379721c
_CorExeMain+0x3ab6 ClrCreateManagedInstance-0x1538a clr+0x1e7976 @ 0x7fef3797976
_CorExeMain+0x39b0 ClrCreateManagedInstance-0x15490 clr+0x1e7870 @ 0x7fef3797870
_CorExeMain+0x3526 ClrCreateManagedInstance-0x1591a clr+0x1e73e6 @ 0x7fef37973e6
_CorExeMain+0x347e ClrCreateManagedInstance-0x159c2 clr+0x1e733e @ 0x7fef379733e
_CorExeMain+0x14 ClrCreateManagedInstance-0x18e2c clr+0x1e3ed4 @ 0x7fef3793ed4
_CorExeMain+0x5d CLRCreateInstance-0x2bd3 mscoreei+0x74e5 @ 0x7fef3f974e5
_CorExeMain+0x69 ND_RU1-0x1707 mscoree+0x5b21 @ 0x7fef4035b21
BaseThreadInitThunk+0xd CreateThread-0x53 kernel32+0x1652d @ 0x76fd652d
RtlUserThreadStart+0x21 strchr-0x3df ntdll+0x2c521 @ 0x776ec521

exception.instruction_r: 80 38 00 48 8b 4d 58 41 b9 04 00 00 00 e8 d9 67
exception.instruction: cmp byte ptr [rax], 0
exception.exception_code: 0xc0000005
exception.symbol:
exception.address: 0x7fe93f6035d
registers.r14: 0
registers.r15: 0
registers.rcx: 2813904
registers.rsi: 0
registers.r10: 0
registers.rbx: 0
registers.rsp: 2816992
registers.r11: 2810912
registers.r8: 37433248
registers.r9: 0
registers.rdx: 37433200
registers.r12: 0
registers.rbp: 0
registers.rdi: 0
registers.rax: 0
registers.r13: 0

Allocates read-write-execute memory (usually to unpack itself) (35 events)

Time & API	Arguments	Status
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 1179648 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0000000000660000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 8192 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0000000000700000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b1000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef3c4b000 process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 1703936 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0000000000aa0000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 8192 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0000000000bc0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b2000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b4000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b4000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b4000 process_handle: 0xffffffffffffffff	1
NtProtectVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fef35b4000 process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 655360 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fffff10000 allocation_type: 1056768 (MEM_RESERVE\|MEM_TOP_DOWN) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fffff10000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fffff10000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fffff20000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 65536 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fffff00000 allocation_type: 1056768 (MEM_RESERVE\|MEM_TOP_DOWN) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fffff00000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fe93e3a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fe93eec000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fe93f16000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fe93ef0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fe93e4c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fe93f60000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fe93f61000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1
NtAllocateVirtualMemory March 20, 2024, 7:49 a.m.	process_identifier: 2040 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000007fe93e3b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1

Communicates with host for which no DNS query was performed (1 event)

host

193.233.132.11

Installs itself for autorun at Windows startup (1 event)

reg_key

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\RtkAudUApp64

reg_value

C:\Users\test22\AppData\Local\Temp\RtkAudUKZ1.exe

File has been identified by 48 AntiVirus engines on VirusTotal as malicious (48 events)

Bkav	W32.AIDetectMalware.CS
Lionic	Trojan.Win32.PowerShell.4!c
Skyhigh	RDN/Generic Downloader.x
Cylance	unsafe
VIPRE	Trojan.GenericKD.72035715
Sangfor	Downloader.Msil.Small.Vejl
K7AntiVirus	Trojan-Downloader ( 005b31a31 )
BitDefender	Trojan.GenericKD.72035715
K7GW	Trojan-Downloader ( 005b31a31 )
Arcabit	Trojan.Generic.D44B2D83
VirIT	Trojan.Win32.MSIL_Heur.A
Symantec	Trojan.Gen.MBT
ESET-NOD32	a variant of MSIL/TrojanDownloader.Small.DCN
McAfee	RDN/Generic Downloader.x
Avast	Win32:RATX-gen [Trj]
Kaspersky	HEUR:Trojan.MSIL.PowerShell.gen
Alibaba	Trojan:MSIL/PowerShell.979ce496
MicroWorld-eScan	Trojan.GenericKD.72035715
Rising	Downloader.Small!8.B41 (CLOUD)
Emsisoft	Trojan.GenericKD.72035715 (B)
F-Secure	Trojan.TR/Dldr.Small.rywqk
DrWeb	Trojan.DownLoader46.55016
TrendMicro	Backdoor.Win32.ASYNCRAT.YXECRZ
FireEye	Trojan.GenericKD.72035715
Sophos	Mal/Generic-S
Ikarus	Trojan-Downloader.MSIL.Small
Webroot	W32.Trojan.Msil
Google	Detected
Avira	TR/Dldr.Small.rywqk
MAX	malware (ai score=81)
Antiy-AVL	Trojan[Downloader]/MSIL.Small
Kingsoft	MSIL.Trojan.PowerShell.gen
Xcitium	Malware@#p1vpfb3or85r
Microsoft	Trojan:Win32/CoinMiner.N!cl
ZoneAlarm	HEUR:Trojan.MSIL.PowerShell.gen
GData	Trojan.GenericKD.72035715
Varist	W32/ABRisk.XCII-7111
BitDefenderTheta	Gen:NN.ZemsilF.36802.bm1@aiAd8Kh
DeepInstinct	MALICIOUS
Malwarebytes	Trojan.Downloader.BTCM
Panda	Trj/Chgt.AD
TrendMicro-HouseCall	Backdoor.Win32.ASYNCRAT.YXECRZ
Tencent	Malware.Win32.Gencirc.1405c70b
SentinelOne	Static AI - Suspicious PE
Fortinet	MSIL/Small.DCN!tr.dldr
AVG	Win32:RATX-gen [Trj]
CrowdStrike	win/malicious_confidence_100% (W)
alibabacloud	Trojan[downloader]:MSIL/PowerShell.gen

RtkAudUKZ1.exe

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