Analysis
- max time kernel
93s - max time network
167s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
11/10/2022, 13:03
General
- Target vbc.exe
- Size 1.1MB
- Sample221011-qaccmsfcdq
- SHA256 4abb470a78c432cc2f4a2001eb2c5188b4c6f31fcc557fdace4e35222d976300
Malware Config
Extracted
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snakekeylogger
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Protocol
smtp
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Host
us2.smtp.mailhostbox.com
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Port
587
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Username
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Password
LYSV$*b4
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Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Uses the VBS compiler for execution 1 TTPs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 11 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dwXPCDQU.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dwXPCDQU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7C73.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4416 -s 14523⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4416 -ip 44161⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp7C73.tmp
memory/1332-144-0x0000000005AA0000-0x0000000005B06000-memory.dmp
memory/1332-155-0x00000000078E0000-0x0000000007976000-memory.dmp
memory/1332-158-0x0000000007980000-0x0000000007988000-memory.dmp
memory/1332-157-0x00000000079A0000-0x00000000079BA000-memory.dmp
memory/1332-156-0x0000000007890000-0x000000000789E000-memory.dmp
memory/1332-140-0x0000000002970000-0x00000000029A6000-memory.dmp
memory/1332-141-0x0000000005400000-0x0000000005A28000-memory.dmp
memory/1332-154-0x00000000076D0000-0x00000000076DA000-memory.dmp
memory/1332-143-0x0000000005290000-0x00000000052B2000-memory.dmp
memory/1332-153-0x0000000007660000-0x000000000767A000-memory.dmp
memory/1332-152-0x0000000007CA0000-0x000000000831A000-memory.dmp
memory/1332-151-0x0000000006900000-0x000000000691E000-memory.dmp
memory/1332-148-0x0000000006340000-0x000000000635E000-memory.dmp
memory/1332-150-0x0000000070B30000-0x0000000070B7C000-memory.dmp
memory/1332-149-0x00000000074D0000-0x0000000007502000-memory.dmp
memory/4324-135-0x0000000004DC0000-0x0000000004DCA000-memory.dmp
memory/4324-133-0x0000000005320000-0x00000000058C4000-memory.dmp
memory/4324-132-0x00000000002E0000-0x000000000040C000-memory.dmp
memory/4324-134-0x0000000004E10000-0x0000000004EA2000-memory.dmp
memory/4324-137-0x000000000B5A0000-0x000000000B606000-memory.dmp
memory/4324-136-0x000000000B250000-0x000000000B2EC000-memory.dmp
memory/4416-147-0x0000000000400000-0x0000000000426000-memory.dmp