Analysis
- max time kernel
107s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
06/05/2022, 15:47
General
- Target 4cf39cae5eece0a9687304c6a24740b1.exe
- Size 539KB
- Sample220506-s77adsaag8
- SHA256 9713d3008a592ab1b06cb6488df0fbb451ba25dac4bb8fda5260fe38f624fdd5
Malware Config
Extracted
-
snakekeylogger
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Protocol
smtp
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Host
smtp.yandex.ru
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Port
587
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Username
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Password
Senegal121
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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.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\4cf39cae5eece0a9687304c6a24740b1.exe"C:\Users\Admin\AppData\Local\Temp\4cf39cae5eece0a9687304c6a24740b1.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- 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\dYrkglizt.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\dYrkglizt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC340.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\4cf39cae5eece0a9687304c6a24740b1.exe"C:\Users\Admin\AppData\Local\Temp\4cf39cae5eece0a9687304c6a24740b1.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 14923⤵
- Program crash
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4388 -ip 43881⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmpC340.tmp
memory/424-148-0x0000000006250000-0x000000000626E000-memory.dmp
memory/424-152-0x0000000007230000-0x00000000072C6000-memory.dmp
memory/424-155-0x00000000072D0000-0x00000000072D8000-memory.dmp
memory/424-154-0x00000000072F0000-0x000000000730A000-memory.dmp
memory/424-153-0x00000000071E0000-0x00000000071EE000-memory.dmp
memory/424-144-0x00000000055E0000-0x0000000005646000-memory.dmp
memory/424-138-0x0000000004710000-0x0000000004746000-memory.dmp
memory/424-151-0x0000000007020000-0x000000000702A000-memory.dmp
memory/424-140-0x0000000004D80000-0x00000000053A8000-memory.dmp
memory/424-150-0x0000000006FB0000-0x0000000006FCA000-memory.dmp
memory/424-149-0x0000000007600000-0x0000000007C7A000-memory.dmp
memory/424-147-0x0000000070DB0000-0x0000000070DFC000-memory.dmp
memory/424-145-0x0000000005CB0000-0x0000000005CCE000-memory.dmp
memory/424-143-0x0000000005510000-0x0000000005532000-memory.dmp
memory/424-146-0x0000000006270000-0x00000000062A2000-memory.dmp
memory/1644-132-0x0000000005440000-0x00000000054D2000-memory.dmp
memory/1644-130-0x0000000000A00000-0x0000000000A8E000-memory.dmp
memory/1644-131-0x0000000005950000-0x0000000005EF4000-memory.dmp
memory/1644-135-0x00000000090F0000-0x0000000009156000-memory.dmp
memory/1644-134-0x00000000054F0000-0x00000000054FA000-memory.dmp
memory/1644-133-0x0000000005580000-0x000000000561C000-memory.dmp
memory/4388-142-0x0000000000400000-0x0000000000426000-memory.dmp