Analysis
- max time kernel
131s - max time network
134s - platform
windows10_x64 - resource
win10 - submitted
03/08/2020, 07:05
General
- Target bosssman.exe
- Size 644KB
- Sample200803-d1zb35fcha
- SHA256 94d2d1aeebeff231fe2536de9f0d7eb42f80686b30ee6a54e3019670f381b943
Score
8/10
Malware Config
Signatures
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 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 behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
Processes
-
C:\Users\Admin\AppData\Local\Temp\bosssman.exe"C:\Users\Admin\AppData\Local\Temp\bosssman.exe"1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
-
C:\Users\Admin\AppData\Local\Temp\bosssman.exe"C:\Users\Admin\AppData\Local\Temp\bosssman.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3908-0-0x0000000000400000-0x00000000004ED000-memory.dmp
memory/3908-2-0x0000000000400000-0x00000000004ED000-memory.dmp
memory/3908-3-0x0000000000400000-0x00000000004ED000-memory.dmp
memory/3908-4-0x0000000002280000-0x00000000022F0000-memory.dmp
memory/3908-5-0x0000000002192000-0x0000000002193000-memory.dmp