Analysis
- max time kernel
91s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
24/06/2022, 08:27
General
- Target Signed_PO_003485940.exe
- Size 522KB
- Sample220624-kceynadgh7
- SHA256 b06019d09cd70b934fe5b140dabf1ffcdea37d773940e16d63ca6d89604f1eda
Malware Config
Extracted
-
snakekeylogger
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Protocol
smtp
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Host
mail.irasemaserrano.com
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Port
26
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Username
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Password
y_/3-Q*Ft#ny4
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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.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- 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.
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Signed_PO_003485940.exe"C:\Users\Admin\AppData\Local\Temp\Signed_PO_003485940.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\dRpfTs.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\dRpfTs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp60BD.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Signed_PO_003485940.exe"C:\Users\Admin\AppData\Local\Temp\Signed_PO_003485940.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
Signed_PO_003485940.exe.log
tmp60BD.tmp
memory/2344-131-0x0000000005250000-0x00000000057F4000-memory.dmp
memory/2344-132-0x0000000004AF0000-0x0000000004B82000-memory.dmp
memory/2344-133-0x0000000002770000-0x000000000277A000-memory.dmp
memory/2344-134-0x00000000086E0000-0x000000000877C000-memory.dmp
memory/2344-130-0x00000000000B0000-0x0000000000138000-memory.dmp
memory/4448-141-0x0000000000400000-0x0000000000426000-memory.dmp
memory/4448-147-0x0000000006A80000-0x0000000006C42000-memory.dmp
memory/4868-144-0x0000000004F70000-0x0000000004FD6000-memory.dmp
memory/4868-150-0x00000000063E0000-0x00000000063FE000-memory.dmp
memory/4868-143-0x0000000004ED0000-0x0000000004EF2000-memory.dmp
memory/4868-137-0x0000000002560000-0x0000000002596000-memory.dmp
memory/4868-145-0x0000000005870000-0x00000000058D6000-memory.dmp
memory/4868-146-0x0000000005EA0000-0x0000000005EBE000-memory.dmp
memory/4868-148-0x0000000007080000-0x00000000070B2000-memory.dmp
memory/4868-149-0x0000000070450000-0x000000007049C000-memory.dmp
memory/4868-140-0x0000000005140000-0x0000000005768000-memory.dmp
memory/4868-151-0x00000000077F0000-0x0000000007E6A000-memory.dmp
memory/4868-152-0x00000000071A0000-0x00000000071BA000-memory.dmp
memory/4868-153-0x0000000007210000-0x000000000721A000-memory.dmp
memory/4868-154-0x0000000007420000-0x00000000074B6000-memory.dmp
memory/4868-155-0x00000000073D0000-0x00000000073DE000-memory.dmp
memory/4868-156-0x00000000074E0000-0x00000000074FA000-memory.dmp
memory/4868-157-0x00000000074C0000-0x00000000074C8000-memory.dmp