Analysis
- max time kernel
154s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20220722-en - resource tags
- submitted
25/07/2022, 09:10
General
- Target iiki.exe
- Size 742KB
- Sample220725-k43tssbaf4
- SHA256 449238734fa329e17dfa46fc52b056f4871acbb4594c55a5eff63a7bccfc34f3
Malware Config
Extracted
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snakekeylogger
-
https://api.telegram.org/bot5412042498:AAH4OVSAlB-9yvO0MxObTPVF8mPej6Ln4M4/sendMessage?chat_id=5573520537
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 16 IoCs
- Suspicious use of AdjustPrivilegeToken 3 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\iiki.exe"C:\Users\Admin\AppData\Local\Temp\iiki.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\xgjptfaiBC.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\xgjptfaiBC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2F4.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\iiki.exe"C:\Users\Admin\AppData\Local\Temp\iiki.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp2F4.tmp
memory/2252-133-0x0000000005130000-0x00000000056D4000-memory.dmp
memory/2252-134-0x0000000004C20000-0x0000000004CB2000-memory.dmp
memory/2252-135-0x0000000004BA0000-0x0000000004BAA000-memory.dmp
memory/2252-136-0x0000000007110000-0x00000000071AC000-memory.dmp
memory/2252-132-0x0000000000150000-0x000000000020E000-memory.dmp
memory/2688-147-0x00000000067D0000-0x0000000006992000-memory.dmp
memory/2688-142-0x0000000000400000-0x0000000000426000-memory.dmp
memory/3196-145-0x0000000005810000-0x0000000005876000-memory.dmp
memory/3196-143-0x00000000050E0000-0x0000000005708000-memory.dmp
memory/3196-144-0x0000000004FF0000-0x0000000005012000-memory.dmp
memory/3196-139-0x00000000026E0000-0x0000000002716000-memory.dmp
memory/3196-146-0x0000000005930000-0x0000000005996000-memory.dmp
memory/3196-148-0x0000000005FA0000-0x0000000005FBE000-memory.dmp
memory/3196-149-0x0000000006600000-0x0000000006632000-memory.dmp
memory/3196-150-0x0000000070280000-0x00000000702CC000-memory.dmp
memory/3196-151-0x00000000065E0000-0x00000000065FE000-memory.dmp
memory/3196-152-0x00000000079A0000-0x000000000801A000-memory.dmp
memory/3196-153-0x0000000006510000-0x000000000652A000-memory.dmp