Analysis
- max time kernel
142s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
20/04/2024, 17:33
General
- Target CTM request ETA 30 July 2021.pdf.exe
- Size 931KB
- Sample240420-v47svsdg44
- SHA256 a3a2aeebad1531fd93c2ff210b9029f5511ebb07eb84f56bae98e8491101ba83
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\CTM request ETA 30 July 2021.pdf.exe"C:\Users\Admin\AppData\Local\Temp\CTM request ETA 30 July 2021.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3328 -s 17803⤵
- Program crash
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4440 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:81⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3328 -ip 33281⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
memory/3076-8-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/3076-10-0x00000000075B0000-0x000000000763C000-memory.dmp
memory/3076-2-0x0000000005F30000-0x00000000064D4000-memory.dmp
memory/3076-9-0x0000000005C90000-0x0000000005CA0000-memory.dmp
memory/3076-4-0x0000000005A20000-0x0000000005ABC000-memory.dmp
memory/3076-5-0x0000000005C90000-0x0000000005CA0000-memory.dmp
memory/3076-6-0x0000000005930000-0x000000000593A000-memory.dmp
memory/3076-7-0x0000000005EA0000-0x0000000005EB2000-memory.dmp
memory/3076-1-0x0000000000E50000-0x0000000000F40000-memory.dmp
memory/3076-0-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/3076-3-0x0000000005980000-0x0000000005A12000-memory.dmp
memory/3076-11-0x0000000009AC0000-0x0000000009AE4000-memory.dmp
memory/3076-16-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/3328-13-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/3328-15-0x0000000005810000-0x0000000005820000-memory.dmp
memory/3328-12-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3328-17-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/3328-18-0x0000000005810000-0x0000000005820000-memory.dmp
memory/3328-19-0x0000000074E40000-0x00000000755F0000-memory.dmp