Analysis
- max time kernel
171s - max time network
201s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
12/10/2022, 07:30
General
- Target Ekstre_2022.10.12.pdf.exe
- Size 921KB
- Sample221012-jbt6hschb2
- SHA256 2262bf3bc3250b4bcefab73d88c2fd44b2d2fe02e4350f42e1f9bcfcab98a867
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot5751029513:AAFcCTwse8CZv3roeUkdxahSto8D8mbC1m4/sendMessage?chat_id=652475543
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.
- 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 10 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Ekstre_2022.10.12.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Ekstre_2022.10.12.pdf.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\rnYKfuttQL.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rnYKfuttQL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1028.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Ekstre_2022.10.12.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Ekstre_2022.10.12.pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp1028.tmp
memory/1392-133-0x000000000B260000-0x000000000B878000-memory.dmp
memory/1392-134-0x000000000B880000-0x000000000BE24000-memory.dmp
memory/1392-135-0x000000000AD20000-0x000000000ADB2000-memory.dmp
memory/1392-136-0x000000000AD10000-0x000000000AD1A000-memory.dmp
memory/1392-137-0x0000000010FD0000-0x000000001106C000-memory.dmp
memory/1392-138-0x00000000112E0000-0x0000000011346000-memory.dmp
memory/1392-132-0x0000000000D40000-0x0000000000E2C000-memory.dmp
memory/3196-146-0x0000000000400000-0x0000000000426000-memory.dmp
memory/4196-144-0x0000000005760000-0x0000000005782000-memory.dmp
memory/4196-151-0x0000000006BE0000-0x0000000006BFE000-memory.dmp
memory/4196-141-0x0000000002CF0000-0x0000000002D26000-memory.dmp
memory/4196-158-0x0000000007C50000-0x0000000007C58000-memory.dmp
memory/4196-147-0x0000000005F90000-0x0000000005FF6000-memory.dmp
memory/4196-148-0x0000000005360000-0x000000000537E000-memory.dmp
memory/4196-149-0x0000000006C20000-0x0000000006C52000-memory.dmp
memory/4196-150-0x0000000071540000-0x000000007158C000-memory.dmp
memory/4196-143-0x0000000005960000-0x0000000005F88000-memory.dmp
memory/4196-152-0x0000000007F80000-0x00000000085FA000-memory.dmp
memory/4196-153-0x0000000007930000-0x000000000794A000-memory.dmp
memory/4196-154-0x00000000079A0000-0x00000000079AA000-memory.dmp
memory/4196-155-0x0000000007BB0000-0x0000000007C46000-memory.dmp
memory/4196-156-0x0000000007B60000-0x0000000007B6E000-memory.dmp
memory/4196-157-0x0000000007C70000-0x0000000007C8A000-memory.dmp