Summary | ZeroBOX

pc_uuppdate.exe

AsyncRAT AntiDebug PE File PE32 .NET EXE AntiVM
Category Machine Started Completed
FILE s1_win7_x6402 June 15, 2021, 10:28 a.m. June 15, 2021, 10:34 a.m.
Size 196.5KB
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5 bf7b01b358903416117bc4de8e0861b2
SHA256 f2ed40ab9c2eb52484d79b485a78e2779dd300b7513eac17ec4e39fd4a9614a8
CRC32 C1E783CE
ssdeep 3072:roMgdkKzePs84KnobXZRQt+YXX4K7jOUplSZ9z6ppDwWHn4vWq9iqegiR+U8dKNo:0MScBHwW7zpo9eV94vkxChWc6P3
PDB Path WindowsFormsApp21.pdb
Yara
  • Win_Backdoor_AsyncRAT_Zero - Win Backdoor AsyncRAT
  • PE_Header_Zero - PE File Signature
  • Is_DotNET_EXE - (no description)
  • IsPE32 - (no description)

Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action
136.144.41.4 Active Moloch
172.217.25.14 Active Moloch

Suricata Alerts

Flow SID Signature Category
TCP 192.168.56.102:49812 -> 136.144.41.4:4771 2028401 ET JA3 Hash - Possible Malware - Various Trickbot/Kovter/Dridex Unknown Traffic
TCP 192.168.56.102:49811 -> 136.144.41.4:4771 2028401 ET JA3 Hash - Possible Malware - Various Trickbot/Kovter/Dridex Unknown Traffic
TCP 136.144.41.4:4771 -> 192.168.56.102:49811 2030673 ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server) Domain Observed Used for C2 Detected

Suricata TLS

Flow Issuer Subject Fingerprint
TLSv1
192.168.56.102:49811
136.144.41.4:4771
CN=AsyncRAT Server CN=AsyncRAT Server 92:a4:0d:f9:f2:da:46:32:51:2f:68:43:ec:e0:68:6a:79:71:35:64
TLSv1
192.168.56.102:49812
136.144.41.4:4771
None None None

Time & API Arguments Status Return Repeated

IsDebuggerPresent

0 0

IsDebuggerPresent

0 0
pdb_path WindowsFormsApp21.pdb
Time & API Arguments Status Return Repeated

GlobalMemoryStatusEx

1 1 0
Time & API Arguments Status Return Repeated

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 262144
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00240000
allocation_type: 8192 (MEM_RESERVE)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00240000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

process_identifier: 2616
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x6fba1000
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

process_identifier: 2616
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x6fba2000
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 1572864
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x020e0000
allocation_type: 8192 (MEM_RESERVE)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x02220000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00322000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0033c000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00520000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0035b000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00357000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00355000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0032a000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 24576
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00521000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00527000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 28672
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00528000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0052f000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00a70000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 2616
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00a71000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0
section {u'size_of_data': u'0x00030800', u'virtual_address': u'0x00002000', u'entropy': 7.476758846074474, u'name': u'.text', u'virtual_size': u'0x000307d4'} entropy 7.47675884607 description A section with a high entropy has been found
entropy 0.989795918367 description Overall entropy of this PE file is high
description (no description) rule DebuggerCheck__GlobalFlags
description (no description) rule DebuggerCheck__QueryInfo
description (no description) rule DebuggerCheck__RemoteAPI
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
host 136.144.41.4
host 172.217.25.14
Time & API Arguments Status Return Repeated

NtAllocateVirtualMemory

process_identifier: 2848
region_size: 73728
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: 0x00000254
1 0 0
Process injection Process 2616 manipulating memory of non-child process 2848
Time & API Arguments Status Return Repeated

NtAllocateVirtualMemory

process_identifier: 2848
region_size: 73728
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: 0x00000254
1 0 0
Process injection Process 2616 injected into non-child 2848
Time & API Arguments Status Return Repeated

WriteProcessMemory

buffer: MZÿÿ¸@€º´ Í!¸LÍ!This program cannot be run in DOS mode. $PEL#·^à ¨ ^Ç à@  @… ÇOàÿ  H.textd§ ¨ `.rsrcÿàª@@.reloc ²@B
base_address: 0x00400000
process_identifier: 2848
process_handle: 0x00000254
1 1 0

WriteProcessMemory

buffer:  €P€8€€h€ àÌlã“Ì4VS_VERSION_INFO½ïþ?DVarFileInfo$Translation°,StringFileInfo000004b0Comments"CompanyName*FileDescription0FileVersion1.0.0.02 InternalNameStub.exe&LegalCopyright*LegalTrademarks: OriginalFilenameStub.exe"ProductName4ProductVersion1.0.0.08Assembly Version1.0.0.0<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> <security> <requestedPrivileges> <requestedExecutionLevel level="asInvoker" uiAccess="false" /> </requestedPrivileges> </security> </trustInfo> <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1"> <application> <!-- Windows Vista --> <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/> <!-- Windows 7 --> <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/> <!-- Windows 8 --> <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/> <!-- Windows 8.1 --> <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/> <!-- Windows 10 --> <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/> </application> </compatibility> <asmv3:application xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" > <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings"> <dpiAware>true</dpiAware> </asmv3:windowsSettings> </asmv3:application> </assembly>
base_address: 0x0040e000
process_identifier: 2848
process_handle: 0x00000254
1 1 0

WriteProcessMemory

buffer: À `7
base_address: 0x00410000
process_identifier: 2848
process_handle: 0x00000254
1 1 0

WriteProcessMemory

buffer: @
base_address: 0x7efde008
process_identifier: 2848
process_handle: 0x00000254
1 1 0
Process injection Process 2616 injected into non-child 2848
Time & API Arguments Status Return Repeated

WriteProcessMemory

buffer: MZÿÿ¸@€º´ Í!¸LÍ!This program cannot be run in DOS mode. $PEL#·^à ¨ ^Ç à@  @… ÇOàÿ  H.textd§ ¨ `.rsrcÿàª@@.reloc ²@B
base_address: 0x00400000
process_identifier: 2848
process_handle: 0x00000254
1 1 0
Process injection Process 2616 called NtSetContextThread to modify thread in remote process 2848
Time & API Arguments Status Return Repeated

NtSetContextThread

registers.eip: 0
registers.esp: 0
registers.edi: 0
registers.eax: 4245342
registers.ebp: 0
registers.edx: 0
registers.ebx: 2130567168
registers.esi: 0
registers.ecx: 0
thread_handle: 0x00000198
process_identifier: 2848
1 0 0
Process injection Process 2616 resumed a thread in remote process 2848
Time & API Arguments Status Return Repeated

NtResumeThread

thread_handle: 0x00000198
suspend_count: 1
process_identifier: 2848
1 0 0
Elastic malicious (high confidence)
Sangfor Trojan.Win32.Save.a
Cybereason malicious.0fe938
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Injector.LOS
APEX Malicious
Paloalto generic.ml
Cynet Malicious (score: 100)
Kaspersky UDS:DangerousObject.Multi.Generic
Sophos ML/PE-A
McAfee-GW-Edition Artemis!Trojan
FireEye Generic.mg.bf7b01b358903416
SentinelOne Static AI - Malicious PE
eGambit Unsafe.AI_Score_97%
AegisLab Trojan.MSIL.Crysan.m!c
ZoneAlarm UDS:DangerousObject.Multi.Generic
Microsoft Trojan:Win32/Wacatac.B!ml
AhnLab-V3 Malware/Win32.RL_Generic.C4036845
McAfee Artemis!BF7B01B35890
Cylance Unsafe
Ikarus Trojan.Dropper
MaxSecure Trojan.Malware.300983.susgen
BitDefenderTheta Gen:NN.ZemsilF.34738.mm0@aiXtkMe
CrowdStrike win/malicious_confidence_100% (W)
Time & API Arguments Status Return Repeated

NtResumeThread

thread_handle: 0x000000dc
suspend_count: 1
process_identifier: 2616
1 0 0

NtResumeThread

thread_handle: 0x0000014c
suspend_count: 1
process_identifier: 2616
1 0 0

NtResumeThread

thread_handle: 0x000001b4
suspend_count: 1
process_identifier: 2616
1 0 0

CreateProcessInternalW

thread_identifier: 7236
thread_handle: 0x00000198
process_identifier: 2848
current_directory:
filepath: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
track: 1
command_line:
filepath_r: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
stack_pivoted: 0
creation_flags: 134217732 (CREATE_NO_WINDOW|CREATE_SUSPENDED)
inherit_handles: 0
process_handle: 0x00000254
1 1 0

NtGetContextThread

thread_handle: 0x00000198
1 0 0

NtAllocateVirtualMemory

process_identifier: 2848
region_size: 73728
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: 0x00000254
1 0 0

WriteProcessMemory

buffer: MZÿÿ¸@€º´ Í!¸LÍ!This program cannot be run in DOS mode. $PEL#·^à ¨ ^Ç à@  @… ÇOàÿ  H.textd§ ¨ `.rsrcÿàª@@.reloc ²@B
base_address: 0x00400000
process_identifier: 2848
process_handle: 0x00000254
1 1 0

WriteProcessMemory

buffer:
base_address: 0x00402000
process_identifier: 2848
process_handle: 0x00000254
1 1 0

WriteProcessMemory

buffer:  €P€8€€h€ àÌlã“Ì4VS_VERSION_INFO½ïþ?DVarFileInfo$Translation°,StringFileInfo000004b0Comments"CompanyName*FileDescription0FileVersion1.0.0.02 InternalNameStub.exe&LegalCopyright*LegalTrademarks: OriginalFilenameStub.exe"ProductName4ProductVersion1.0.0.08Assembly Version1.0.0.0<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> <security> <requestedPrivileges> <requestedExecutionLevel level="asInvoker" uiAccess="false" /> </requestedPrivileges> </security> </trustInfo> <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1"> <application> <!-- Windows Vista --> <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/> <!-- Windows 7 --> <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/> <!-- Windows 8 --> <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/> <!-- Windows 8.1 --> <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/> <!-- Windows 10 --> <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/> </application> </compatibility> <asmv3:application xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" > <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings"> <dpiAware>true</dpiAware> </asmv3:windowsSettings> </asmv3:application> </assembly>
base_address: 0x0040e000
process_identifier: 2848
process_handle: 0x00000254
1 1 0

WriteProcessMemory

buffer: À `7
base_address: 0x00410000
process_identifier: 2848
process_handle: 0x00000254
1 1 0

WriteProcessMemory

buffer: @
base_address: 0x7efde008
process_identifier: 2848
process_handle: 0x00000254
1 1 0

NtSetContextThread

registers.eip: 0
registers.esp: 0
registers.edi: 0
registers.eax: 4245342
registers.ebp: 0
registers.edx: 0
registers.ebx: 2130567168
registers.esi: 0
registers.ecx: 0
thread_handle: 0x00000198
process_identifier: 2848
1 0 0

NtResumeThread

thread_handle: 0x00000198
suspend_count: 1
process_identifier: 2848
1 0 0