Analysis
- max time kernel
116s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
20/10/2022, 10:33
General
- Target BL, Invoice and Packing list.exe
- Size 614KB
- Sample221020-mlhr1shhc2
- SHA256 ae8ae303cd239daf6e1766b4f7b5ecae44a2ae9ef713bcdc8e633f4f8f9f6b2b
Malware Config
Extracted
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snakekeylogger
-
https://api.telegram.org/bot1507062795:AAEBb0H5OYbp-dWwXk8ffQp0InjOhKxhpbU/sendMessage?chat_id=1663822858
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 4 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\BL, Invoice and Packing list.exe"C:\Users\Admin\AppData\Local\Temp\BL, Invoice and Packing list.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\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YuvvrPPH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEA9E.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\BL, Invoice and Packing list.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\BL, Invoice and Packing list.exe"{path}"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
tmpEA9E.tmp
memory/680-141-0x0000000000400000-0x0000000000426000-memory.dmp
memory/680-142-0x00000000065F0000-0x00000000067B2000-memory.dmp
memory/2288-132-0x0000000000860000-0x0000000000900000-memory.dmp
memory/2288-133-0x00000000058B0000-0x0000000005E54000-memory.dmp
memory/2288-134-0x0000000005300000-0x0000000005392000-memory.dmp
memory/2288-135-0x00000000053A0000-0x000000000543C000-memory.dmp
memory/2288-136-0x0000000005290000-0x000000000529A000-memory.dmp