Analysis
- max time kernel
118s - max time network
117s - platform
windows10_x64 - resource
win10 - submitted
23/09/2020, 10:33
General
- Target Invoice.exe
- Size 693KB
- Sample200923-91lpvszten
- SHA256 99a9f37b29dd440c803ea37c57a6acded495d4b49c165f66b3fbe8a427972799
Malware Config
Signatures
- 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.
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1272-13-0x0000000005630000-0x0000000005631000-memory.dmp
memory/1272-7-0x0000000000400000-0x0000000000472000-memory.dmp
memory/1272-9-0x0000000073500000-0x0000000073BEE000-memory.dmp
memory/1272-12-0x0000000005B30000-0x0000000005B31000-memory.dmp
memory/1272-14-0x0000000005560000-0x0000000005561000-memory.dmp
memory/1272-16-0x0000000006CA0000-0x0000000006CA1000-memory.dmp
memory/1272-17-0x0000000006F70000-0x0000000006F71000-memory.dmp
memory/3608-1-0x00000000008E0000-0x00000000008E1000-memory.dmp
memory/3608-3-0x00000000051E0000-0x00000000051E1000-memory.dmp
memory/3608-4-0x0000000005870000-0x00000000058E3000-memory.dmp
memory/3608-6-0x00000000057F0000-0x0000000005862000-memory.dmp
memory/3608-0-0x0000000073500000-0x0000000073BEE000-memory.dmp