Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
10/10/2022, 14:28
General
- Target Halkbank_Ekstre_20221004_08.pdf.exe
- Size 1.0MB
- Sample221010-rszrbscbe3
- SHA256 6bb83e35c0188c0933962f1e4dbd1f834ff9c870d385ce8bac145e018da30a47
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.
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221004_08.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221004_08.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\UmFJCIjFxdVl.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\UmFJCIjFxdVl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2124.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221004_08.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20221004_08.pdf.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
Loading Replay Monitor...
Downloads
tmp2124.tmp
memory/8-143-0x0000000000400000-0x0000000000426000-memory.dmp
memory/8-148-0x0000000006D10000-0x0000000006ED2000-memory.dmp
memory/3976-133-0x0000000007740000-0x0000000007CE4000-memory.dmp
memory/3976-134-0x0000000007230000-0x00000000072C2000-memory.dmp
memory/3976-135-0x00000000071D0000-0x00000000071DA000-memory.dmp
memory/3976-136-0x00000000051D0000-0x000000000526C000-memory.dmp
memory/3976-137-0x00000000054E0000-0x0000000005546000-memory.dmp
memory/3976-132-0x00000000003A0000-0x00000000004A8000-memory.dmp
memory/5092-150-0x0000000070990000-0x00000000709DC000-memory.dmp
memory/5092-145-0x0000000004D60000-0x0000000004D82000-memory.dmp
memory/5092-146-0x0000000005680000-0x00000000056E6000-memory.dmp
memory/5092-147-0x0000000005D30000-0x0000000005D4E000-memory.dmp
memory/5092-140-0x0000000004750000-0x0000000004786000-memory.dmp
memory/5092-149-0x00000000062F0000-0x0000000006322000-memory.dmp
memory/5092-144-0x0000000004DF0000-0x0000000005418000-memory.dmp
memory/5092-151-0x00000000062D0000-0x00000000062EE000-memory.dmp
memory/5092-152-0x0000000007680000-0x0000000007CFA000-memory.dmp
memory/5092-153-0x0000000007030000-0x000000000704A000-memory.dmp
memory/5092-154-0x00000000070A0000-0x00000000070AA000-memory.dmp
memory/5092-155-0x00000000072B0000-0x0000000007346000-memory.dmp
memory/5092-156-0x0000000007260000-0x000000000726E000-memory.dmp
memory/5092-157-0x0000000007370000-0x000000000738A000-memory.dmp
memory/5092-158-0x0000000007350000-0x0000000007358000-memory.dmp