Analysis
- max time kernel
143s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
24/01/2024, 22:15
General
- Target SerotoninLoader.exe
- Size 274KB
- Sample240124-16bfbsabf4
- SHA256 1ea45c54e59585e1cd3b415c1a8dd4e5e6146559802d55ad00549e88d0dad03c
Score
10/10
Malware Config
Extracted
Family
-
44caliber
C2
-
https://discord.com/api/webhooks/1190238303706943558/sspm8U_-iZm0lPr7lzq2HlHtwE1OvN49WbP5Wq0jsesUiJAxFQ_ILy_elOLuM4tFYIXC
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\SerotoninLoader.exe"C:\Users\Admin\AppData\Local\Temp\SerotoninLoader.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
memory/1572-0-0x00000234C5760000-0x00000234C57AA000-memory.dmp
memory/1572-31-0x00007FF8FCFB0000-0x00007FF8FDA71000-memory.dmp
memory/1572-32-0x00000234C7610000-0x00000234C7620000-memory.dmp
memory/1572-122-0x00007FF8FCFB0000-0x00007FF8FDA71000-memory.dmp