Analysis
- max time kernel
41s - max time network
76s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
- submitted
10/01/2024, 02:25
General
- Target 4f552083461474d9a151b2ce139638b2.exe
- Size 567KB
- Sample240110-cwp9qsdcb9
- SHA256 c78c65574f46075aad9b0bdd6a93cae108cf0d07fa6c906d171d27699081ee4c
Malware Config
Signatures
- 44Caliber
An open source infostealer written in C#.
- Detect ZGRat V1 3 IoCs
- ZGRat
ZGRat is remote access trojan written in C#.
- Executes dropped EXE 2 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4f552083461474d9a151b2ce139638b2.exe"C:\Users\Admin\AppData\Local\Temp\4f552083461474d9a151b2ce139638b2.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\CookieViewer.exe"C:\Users\Admin\AppData\Local\Temp\CookieViewer.exe"2⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Temp\Viewer.exe"C:\Users\Admin\AppData\Local\Temp\Viewer.exe"2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Process.txt
Process.txt
CookieViewer.exe
CookieViewer.exe
Viewer.exe
Viewer.exe
memory/2640-18-0x000007FEF5E50000-0x000007FEF683C000-memory.dmp
memory/2640-16-0x0000000000DC0000-0x0000000000E78000-memory.dmp
memory/2640-19-0x000000001B2D0000-0x000000001B350000-memory.dmp
memory/2640-38-0x000000001B2D0000-0x000000001B350000-memory.dmp
memory/2640-68-0x000000001B2D0000-0x000000001B350000-memory.dmp
memory/2640-69-0x000007FEF5E50000-0x000007FEF683C000-memory.dmp
memory/2884-0-0x0000000000AC0000-0x0000000000B52000-memory.dmp
memory/2884-17-0x000007FEF5E50000-0x000007FEF683C000-memory.dmp
memory/2884-2-0x000000001B0C0000-0x000000001B140000-memory.dmp
memory/2884-3-0x0000000000150000-0x0000000000151000-memory.dmp
memory/2884-1-0x000007FEF5E50000-0x000007FEF683C000-memory.dmp