Analysis
- max time kernel
146s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
28/02/2023, 16:08
General
- Target hesaphareketi-01.PDF.exe
- Size 291KB
- Sample230228-tk8elscb32
- SHA256 4ab558181de9bd2dd00dc75eb66840c18c9243c62d72ee90d4e037d9be472721
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 4 IoCs
- Executes dropped EXE 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.PDF.exe"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.PDF.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ejvvifsq.exe"C:\Users\Admin\AppData\Local\Temp\ejvvifsq.exe" C:\Users\Admin\AppData\Local\Temp\bptzm.sgm2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ejvvifsq.exe"C:\Users\Admin\AppData\Local\Temp\ejvvifsq.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
bptzm.sgm
ejvvifsq.exe
ejvvifsq.exe
ejvvifsq.exe
xkazfu.q
memory/3380-148-0x0000000004A20000-0x0000000004A30000-memory.dmp
memory/3380-151-0x0000000004FE0000-0x000000000507C000-memory.dmp
memory/3380-145-0x0000000000400000-0x0000000000437000-memory.dmp
memory/3380-147-0x0000000000400000-0x0000000000437000-memory.dmp
memory/3380-149-0x0000000004A20000-0x0000000004A30000-memory.dmp
memory/3380-142-0x0000000000400000-0x0000000000437000-memory.dmp
memory/3380-150-0x0000000004A30000-0x0000000004FD4000-memory.dmp
memory/3380-144-0x0000000000400000-0x0000000000437000-memory.dmp
memory/3380-152-0x0000000004A20000-0x0000000004A30000-memory.dmp
memory/3380-153-0x0000000005B80000-0x0000000005D42000-memory.dmp
memory/3380-154-0x0000000005D50000-0x0000000005DE2000-memory.dmp
memory/3380-155-0x0000000005E30000-0x0000000005E3A000-memory.dmp
memory/3380-157-0x0000000004A20000-0x0000000004A30000-memory.dmp
memory/3380-158-0x0000000004A20000-0x0000000004A30000-memory.dmp
memory/3380-159-0x0000000004A20000-0x0000000004A30000-memory.dmp
memory/3380-160-0x0000000004A20000-0x0000000004A30000-memory.dmp