Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6401	Oct. 5, 2021, 9:36 a.m.	Oct. 5, 2021, 9:44 a.m.

Size	261.0KB
Type	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5	`189b5fb512ac70ee220a527a22ab0950`
SHA256	`e358b0decf6299722b1f3a357e76223d3a0d85a920f08d34c5eb894bda020840`
CRC32	`77858CD8`
ssdeep	`6144:q45k3R3SXePVJgiCE3Y7SEN9LOC5QcCFp3:qv3JcgSiCEy3LO4CFp3`
Yara	Admin_Tool_IN_Zero - Admin Tool Sysinternals PE_Header_Zero - PE File Signature Generic_Malware_Zero - Generic Malware Is_DotNET_EXE - (no description) Win_Backdoor_AsyncRAT_Zero - Win Backdoor AsyncRAT IsPE32 - (no description)

vbc.exe "C:\Users\test22\AppData\Local\Temp\vbc.exe"
1684

Name	Response	Post-Analysis Lookup
apps.identrust.com	A 52.217.99.219 CNAME apps.identrust.com.s3-website-us-east-1.amazonaws.com CNAME s3-website.us-east-1.amazonaws.com	52.217.168.221
textbin.net	A 51.79.99.124	51.79.99.124

IP Address	Status	Action
164.124.101.2	Active	Moloch
51.79.99.124	Active	Moloch
52.217.99.219	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
TCP 192.168.56.101:49200 -> 51.79.99.124:443	906200022	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined

Suricata TLS

Flow	Issuer	Subject	Fingerprint
TLS 1.2 192.168.56.101:49200 51.79.99.124:443	C=US, O=Let's Encrypt, CN=R3	CN=textbin.net	f0:a5:e9:5b:72:af:ec:cb:17:1b:86:6d:9f:19:9a:3a:8b:12:df:91

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

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent Oct. 5, 2021, 9:36 a.m.			0	0
IsDebuggerPresent Oct. 5, 2021, 9:36 a.m.			0	0

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 Oct. 5, 2021, 9:36 a.m.		1	1	0

One or more processes crashed (1 event)

Time & API	Arguments	Status	Return	Repeated
__exception__ Oct. 5, 2021, 9:36 a.m.	stacktrace: 0x5f0563 DllUnregisterServerInternal-0x7aa2 clr+0x2652 @ 0x72742652 DllRegisterServerInternal+0x243 CoUninitializeEE-0xd1f5 clr+0x1264f @ 0x7275264f DllRegisterServerInternal+0xa89 CoUninitializeEE-0xc9af clr+0x12e95 @ 0x72752e95 DllGetClassObjectInternal+0x2473 CorDllMainForThunk-0x8a088 clr+0xc74ec @ 0x728074ec DllGetClassObjectInternal+0x2597 CorDllMainForThunk-0x89f64 clr+0xc7610 @ 0x72807610 CorDllMainForThunk+0x850 _CorExeMain-0x238a clr+0x151dc4 @ 0x72891dc4 CorDllMainForThunk+0x8f3 _CorExeMain-0x22e7 clr+0x151e67 @ 0x72891e67 CorDllMainForThunk+0xa06 _CorExeMain-0x21d4 clr+0x151f7a @ 0x72891f7a _CorExeMain+0x1c ClrCreateManagedInstance-0x35cd clr+0x15416a @ 0x7289416a _CorExeMain+0x71 GetFileVersion-0x293a mscoreei+0xf5a3 @ 0x7376f5a3 CreateConfigStream+0x13f GetProcessExecutableHeap-0xad6 mscoree+0x7f16 @ 0x743c7f16 _CorExeMain+0x8 CreateConfigStream-0x2ff4 mscoree+0x4de3 @ 0x743c4de3 RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x773d9ed2 RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x773d9ea5 exception.instruction_r: 39 09 e8 da 81 93 6f 89 85 68 ff ff ff 8b 45 94 exception.instruction: cmp dword ptr [ecx], ecx exception.exception_code: 0xc0000005 exception.symbol: exception.address: 0x5f07df registers.esp: 1437092 registers.edi: 1437396 registers.eax: 36801724 registers.ebp: 1437408 registers.edx: 36801724 registers.ebx: 1437780 registers.esi: 0 registers.ecx: 0	1	0	0

Time & API

Arguments

Status

Return

Repeated

__exception__

Oct. 5, 2021, 9:36 a.m.

stacktrace:

0x5f0563
DllUnregisterServerInternal-0x7aa2 clr+0x2652 @ 0x72742652
DllRegisterServerInternal+0x243 CoUninitializeEE-0xd1f5 clr+0x1264f @ 0x7275264f
DllRegisterServerInternal+0xa89 CoUninitializeEE-0xc9af clr+0x12e95 @ 0x72752e95
DllGetClassObjectInternal+0x2473 CorDllMainForThunk-0x8a088 clr+0xc74ec @ 0x728074ec
DllGetClassObjectInternal+0x2597 CorDllMainForThunk-0x89f64 clr+0xc7610 @ 0x72807610
CorDllMainForThunk+0x850 _CorExeMain-0x238a clr+0x151dc4 @ 0x72891dc4
CorDllMainForThunk+0x8f3 _CorExeMain-0x22e7 clr+0x151e67 @ 0x72891e67
CorDllMainForThunk+0xa06 _CorExeMain-0x21d4 clr+0x151f7a @ 0x72891f7a
_CorExeMain+0x1c ClrCreateManagedInstance-0x35cd clr+0x15416a @ 0x7289416a
_CorExeMain+0x71 GetFileVersion-0x293a mscoreei+0xf5a3 @ 0x7376f5a3
CreateConfigStream+0x13f GetProcessExecutableHeap-0xad6 mscoree+0x7f16 @ 0x743c7f16
_CorExeMain+0x8 CreateConfigStream-0x2ff4 mscoree+0x4de3 @ 0x743c4de3
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x773d9ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x773d9ea5

exception.instruction_r: 39 09 e8 da 81 93 6f 89 85 68 ff ff ff 8b 45 94
exception.instruction: cmp dword ptr [ecx], ecx
exception.exception_code: 0xc0000005
exception.symbol:
exception.address: 0x5f07df
registers.esp: 1437092
registers.edi: 1437396
registers.eax: 36801724
registers.ebp: 1437408
registers.edx: 36801724
registers.ebx: 1437780
registers.esi: 0
registers.ecx: 0

Performs some HTTP requests (1 event)

request

GET http://apps.identrust.com/roots/dstrootcax3.p7c

Allocates read-write-execute memory (usually to unpack itself) (19 events)

Time & API	Arguments	Status
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 1769472 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00770000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x008e0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72741000 process_handle: 0xffffffff	1
NtProtectVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72742000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 589824 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004c0000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00510000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00392000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00415000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0041b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00417000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003fc000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x005f0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0039a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0040a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00407000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00406000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0040b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x003fa000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 5, 2021, 9:36 a.m.	process_identifier: 1684 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0039c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1

Checks adapter addresses which can be used to detect virtual network interfaces (1 event)

Time & API	Arguments	Status	Return	Repeated
GetAdaptersAddresses Oct. 5, 2021, 9:36 a.m.	flags: 15 family: 0		111	0

File has been identified by 13 AntiVirus engines on VirusTotal as malicious (13 events)

FireEye	Generic.mg.189b5fb512ac70ee
Cylance	Unsafe
Sangfor	Suspicious.Win32.Save.a
Cyren	W32/MSIL_Kryptik.DSR.gen!Eldorado
Symantec	ML.Attribute.HighConfidence
APEX	Malicious
Kaspersky	HEUR:Trojan-PSW.MSIL.Agensla.gen
SentinelOne	Static AI - Malicious PE
Avira	TR/Dropper.MSIL.Gen8
Microsoft	Trojan:Win32/Sabsik.FL.B!ml
Cynet	Malicious (score: 99)
BitDefenderTheta	Gen:NN.ZemsilCO.34170.qm0@a4jMTul
CrowdStrike	win/malicious_confidence_90% (W)

vbc.exe

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