Analysis
- max time kernel
76s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
28/04/2023, 04:39
General
- Target Halkbank_Ekstre_20230426_075819_154055.exe
- Size 1.1MB
- Sample230428-e9zrfadg6v
- SHA256 b397cca1a04a9edb50e12c5f730cb660dff805000e6576455218dfd73a85e7f2
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot5587666659:AAG8NrrXJQs__dhk8nLJBFOspz2my8OVpX0/sendMessage?chat_id=5569775004
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 2 IoCs
- 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
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.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
Halkbank_Ekstre_20230426_075819_154055.exe.log
memory/396-133-0x0000000000C60000-0x0000000000D76000-memory.dmp
memory/396-134-0x0000000005DC0000-0x0000000006364000-memory.dmp
memory/396-135-0x0000000005730000-0x00000000057C2000-memory.dmp
memory/396-136-0x00000000059E0000-0x00000000059F0000-memory.dmp
memory/396-137-0x00000000059D0000-0x00000000059DA000-memory.dmp
memory/396-138-0x00000000059E0000-0x00000000059F0000-memory.dmp
memory/396-139-0x00000000077F0000-0x000000000788C000-memory.dmp
memory/752-140-0x0000000000400000-0x0000000000426000-memory.dmp
memory/752-143-0x0000000005780000-0x0000000005790000-memory.dmp
memory/752-144-0x0000000006B10000-0x0000000006CD2000-memory.dmp
memory/752-145-0x0000000005780000-0x0000000005790000-memory.dmp