Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6403_us	Sept. 2, 2024, 10:11 a.m.	Sept. 2, 2024, 10:24 a.m.

Size	316.5KB
Type	PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows
MD5	`a7b783146953de955a829962edd77767`
SHA256	`74b3caf244eb585fc543da9bec72a7d3e3bc9cb1770b6b32d497e12ad2cf8500`
CRC32	`D0D4C944`
ssdeep	`6144:TqTD6D2mdAYdTksLCyrZ64P8ClAtRSlSvaW7waBaJfg9yAOLoCHzmm:CDS4CTtxZ64v8QlSva+waUxgYJUCHzmm`
PDB Path	c:\rje\tg\v7t35a\obj\Re\ease\etf.pdb
Yara	PE_Header_Zero - PE File Signature Antivirus - Contains references to security software Is_DotNET_EXE - (no description) IsPE32 - (no description)

66d1ee505e71e_Build.exe "C:\Users\test22\AppData\Local\Temp\66d1ee505e71e_Build.exe"
1460
- RegAsm.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2076

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
No hosts contacted.

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 Sept. 2, 2024, 10:11 a.m.			0	0
IsDebuggerPresent Sept. 2, 2024, 10:11 a.m.			0	0

This executable has a PDB path (1 event)

pdb_path

c:\rje\tg\v7t35a\obj\Re\ease\etf.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 Sept. 2, 2024, 10:11 a.m.		1	1	0

One or more potentially interesting buffers were extracted, these generally contain injected code, configuration data, etc.

Allocates read-write-execute memory (usually to unpack itself) (13 events)

Time & API	Arguments	Status
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 2162688 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x009d0000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00ba0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73f61000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73f62000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 589824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00630000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00680000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00402000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00435000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0043b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00437000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0041c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00650000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 1460 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x02122000 process_handle: 0xffffffff	1

The binary likely contains encrypted or compressed data indicative of a packer (2 events)

section

{u'size_of_data': u'0x0004e600', u'virtual_address': u'0x00002000', u'entropy': 7.995554137775007, u'name': u'.text', u'virtual_size': u'0x0004e5b4'}

entropy

7.99555413778

description

A section with a high entropy has been found

entropy

0.992088607595

description

Overall entropy of this PE file is high

Yara rule detected in process memory (9 events)

description	Take ScreenShot	rule	ScreenShot
description	(no description)	rule	DebuggerCheck__GlobalFlags
description	(no description)	rule	DebuggerCheck__QueryInfo
description	(no description)	rule	DebuggerHiding__Thread
description	(no description)	rule	DebuggerHiding__Active
description	(no description)	rule	ThreadControl__Context
description	(no description)	rule	SEH__vectored
description	Checks if being debugged	rule	anti_dbg
description	Bypass DEP	rule	disable_dep

Allocates execute permission to another process indicative of possible code injection (1 event)

Time & API	Arguments	Status	Return	Repeated
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 2076 region_size: 360448 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00400000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0x000001e8	1	0	0

Potential code injection by writing to the memory of another process (2 events)

Time & API	Arguments	Status	Return	Repeated
WriteProcessMemory Sept. 2, 2024, 10:11 a.m.	buffer: MZx@xº´ Í!¸LÍ!This program cannot be run in DOS mode.$PELÀ[Ïfà¾0¤@@)Dx@¼?LE¨.text± `.rdataU( * @@.data$èPT4@À.reloc¼?@@@B base_address: 0x00400000 process_identifier: 2076 process_handle: 0x000001e8	1	1	0
WriteProcessMemory Sept. 2, 2024, 10:11 a.m.	buffer: @ base_address: 0x7efde008 process_identifier: 2076 process_handle: 0x000001e8	1	1	0

Code injection by writing an executable or DLL to the memory of another process (1 event)

Time & API	Arguments	Status	Return	Repeated
WriteProcessMemory Sept. 2, 2024, 10:11 a.m.	buffer: MZx@xº´ Í!¸LÍ!This program cannot be run in DOS mode.$PELÀ[Ïfà¾0¤@@)Dx@¼?LE¨.text± `.rdataU( * @@.data$èPT4@À.reloc¼?@@@B base_address: 0x00400000 process_identifier: 2076 process_handle: 0x000001e8	1	1	0

Used NtSetContextThread to modify a thread in a remote process indicative of process injection (2 events)

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 1460 called NtSetContextThread to modify thread in remote process 2076
NtSetContextThread Sept. 2, 2024, 10:11 a.m.	registers.eip: 2005598660 registers.esp: 3472400 registers.edi: 0 registers.eax: 4236336 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x0000002c process_identifier: 2076	1	0	0

Resumed a suspended thread in a remote process potentially indicative of process injection (2 events)

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 1460 resumed a thread in remote process 2076
NtResumeThread Sept. 2, 2024, 10:11 a.m.	thread_handle: 0x0000002c suspend_count: 1 process_identifier: 2076	1	0	0

Executed a process and injected code into it, probably while unpacking (14 events)

Time & API	Arguments	Status	Return
NtResumeThread Sept. 2, 2024, 10:11 a.m.	thread_handle: 0x000000e8 suspend_count: 1 process_identifier: 1460	1	0
NtResumeThread Sept. 2, 2024, 10:11 a.m.	thread_handle: 0x0000015c suspend_count: 1 process_identifier: 1460	1	0
NtResumeThread Sept. 2, 2024, 10:11 a.m.	thread_handle: 0x0000019c suspend_count: 1 process_identifier: 1460	1	0
CreateProcessInternalW Sept. 2, 2024, 10:11 a.m.	thread_identifier: 2080 thread_handle: 0x0000002c process_identifier: 2076 current_directory: filepath: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe track: 1 command_line: filepath_r: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe stack_pivoted: 0 creation_flags: 4 (CREATE_SUSPENDED) inherit_handles: 0 process_handle: 0x000001e8	1	1
NtGetContextThread Sept. 2, 2024, 10:11 a.m.	thread_handle: 0x0000002c	1	0
NtAllocateVirtualMemory Sept. 2, 2024, 10:11 a.m.	process_identifier: 2076 region_size: 360448 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00400000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0x000001e8	1	0
WriteProcessMemory Sept. 2, 2024, 10:11 a.m.	buffer: MZx@xº´ Í!¸LÍ!This program cannot be run in DOS mode.$PELÀ[Ïfà¾0¤@@)Dx@¼?LE¨.text± `.rdataU( * @@.data$èPT4@À.reloc¼?@@@B base_address: 0x00400000 process_identifier: 2076 process_handle: 0x000001e8	1	1
WriteProcessMemory Sept. 2, 2024, 10:11 a.m.	buffer: base_address: 0x00401000 process_identifier: 2076 process_handle: 0x000001e8	1	1
WriteProcessMemory Sept. 2, 2024, 10:11 a.m.	buffer: base_address: 0x00442000 process_identifier: 2076 process_handle: 0x000001e8	1	1
WriteProcessMemory Sept. 2, 2024, 10:11 a.m.	buffer: base_address: 0x00445000 process_identifier: 2076 process_handle: 0x000001e8	1	1
WriteProcessMemory Sept. 2, 2024, 10:11 a.m.	buffer: base_address: 0x00454000 process_identifier: 2076 process_handle: 0x000001e8	1	1
WriteProcessMemory Sept. 2, 2024, 10:11 a.m.	buffer: @ base_address: 0x7efde008 process_identifier: 2076 process_handle: 0x000001e8	1	1
NtSetContextThread Sept. 2, 2024, 10:11 a.m.	registers.eip: 2005598660 registers.esp: 3472400 registers.edi: 0 registers.eax: 4236336 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x0000002c process_identifier: 2076	1	0
NtResumeThread Sept. 2, 2024, 10:11 a.m.	thread_handle: 0x0000002c suspend_count: 1 process_identifier: 2076	1	0

File has been identified by 53 AntiVirus engines on VirusTotal as malicious (50 out of 53 events)

Bkav	W32.AIDetectMalware.CS
Lionic	Trojan.Win32.Stelpak.4!c
Elastic	malicious (high confidence)
CAT-QuickHeal	Trojan.MSIL
Skyhigh	BehavesLike.Win32.AgentTesla.fc
ALYac	Gen:Variant.Zusy.557509
Cylance	Unsafe
VIPRE	Gen:Variant.Zusy.557509
Sangfor	Trojan.Msil.Stelpak.Vcjb
K7AntiVirus	Trojan ( 005b9c871 )
BitDefender	Gen:Variant.Zusy.557509
K7GW	Trojan ( 005b9c871 )
Arcabit	Trojan.Zusy.D881C5
Symantec	ML.Attribute.HighConfidence
ESET-NOD32	a variant of MSIL/GenKryptik.HBBH
APEX	Malicious
McAfee	Artemis!A7B783146953
Avast	Win32:PWSX-gen [Trj]
ClamAV	Win.Packed.Pwsx-10035189-0
Kaspersky	HEUR:Trojan.MSIL.Stelpak.gen
Alibaba	Trojan:MSIL/Stelpak.36f3e8cd
MicroWorld-eScan	Gen:Variant.Zusy.557509
Rising	Malware.Obfus/MSIL@AI.100 (RDM.MSIL2:f24sQ/ggVLVpXGowM+4/og)
Emsisoft	Gen:Variant.Zusy.557509 (B)
F-Secure	Trojan.TR/AD.Nekark.icvyt
DrWeb	Trojan.Inject5.8199
TrendMicro	TrojanSpy.Win32.LUMMASTEALER.YXEH5Z
McAfeeD	ti!74B3CAF244EB
FireEye	Generic.mg.a7b783146953de95
Sophos	Troj/MSILIn-BFQ
Google	Detected
Avira	TR/AD.Nekark.icvyt
MAX	malware (ai score=87)
Kingsoft	MSIL.Trojan.Stelpak.gen
Gridinsoft	Trojan.Win32.Packed.dd!ni
Microsoft	Trojan:MSIL/LummaStealer.KAO!MTB
ZoneAlarm	HEUR:Trojan.MSIL.Stelpak.gen
GData	Gen:Variant.Zusy.557509
Varist	W32/MSIL_Agent.ILZ.gen!Eldorado
AhnLab-V3	Infostealer/Win.ApplicationInfo.C5663844
BitDefenderTheta	Gen:NN.ZemsilF.36812.tm0@aa3DmXci
DeepInstinct	MALICIOUS
Malwarebytes	Trojan.Crypt.MSIL
Ikarus	Trojan.MSIL.Krypt
Panda	Trj/GdSda.A
TrendMicro-HouseCall	TrojanSpy.Win32.LUMMASTEALER.YXEH5Z
Tencent	Msil.Trojan.Stelpak.Mqil
huorong	Trojan/MSIL.Agent.li
Fortinet	MSIL/GenKryptik.HBBH!tr
AVG	Win32:PWSX-gen [Trj]

66d1ee505e71e_Build.exe

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