Analysis
- max time kernel
143s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
31/08/2023, 04:42
General
- Target loader.exe
- Size 274KB
- Sample230831-fb7vtsdb28
- SHA256 fd45e5b2e40a6a427bc0b2caf7d546a63a632adaa4fe7cb70a9173f74c4c54e2
Score
10/10
Malware Config
Extracted
Family
-
44caliber
C2
-
https://discord.com/api/webhooks/1136773243261427722/PblfbxA7GVJqBDdmJ8FJrCPSUvE8iRRElfnrMu-WTqPYsrO633tdDs3xiZCowAI13ArQ
Signatures
- 44Caliber
An open source infostealer written in C#.
- 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.
- 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 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\loader.exe"C:\Users\Admin\AppData\Local\Temp\loader.exe"1⤵
- 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
memory/3288-0-0x000001A040D40000-0x000001A040D8A000-memory.dmp
memory/3288-31-0x00007FF8F0550000-0x00007FF8F1011000-memory.dmp
memory/3288-32-0x000001A0411D0000-0x000001A0411E0000-memory.dmp
memory/3288-118-0x00007FF8F0550000-0x00007FF8F1011000-memory.dmp