Analysis
- max time kernel
153s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
26/08/2022, 06:27
General
- Target SWIFT IMG_2022082__000021001.pdf.exe
- Size 32KB
- Sample220826-g7rddshed7
- SHA256 7b8c63fc9564c82db7c23fcf523fea4e7e69de4ef7dbc5c2b3bb06a7491b4f26
Malware Config
Signatures
- BluStealer
A Modular information stealer written in Visual Basic.
- StormKitty
StormKitty is an open source info stealer written in C#.
- StormKitty payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 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 use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SWIFT IMG_2022082__000021001.pdf.exe"C:\Users\Admin\AppData\Local\Temp\SWIFT IMG_2022082__000021001.pdf.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\SWIFT IMG_2022082__000021001.pdf.exe"C:\Users\Admin\AppData\Local\Temp\SWIFT IMG_2022082__000021001.pdf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe3⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/624-147-0x0000000000400000-0x0000000000422000-memory.dmp
memory/624-156-0x0000000000400000-0x0000000000422000-memory.dmp
memory/624-152-0x0000000000400000-0x0000000000422000-memory.dmp
memory/624-149-0x0000000000400000-0x0000000000422000-memory.dmp
memory/2192-137-0x0000000005A70000-0x0000000005A92000-memory.dmp
memory/2192-132-0x00000000002D0000-0x00000000002DE000-memory.dmp
memory/2192-133-0x0000000005870000-0x00000000058C0000-memory.dmp
memory/2192-134-0x0000000005980000-0x0000000005A32000-memory.dmp
memory/2192-135-0x0000000005FF0000-0x0000000006594000-memory.dmp
memory/2192-136-0x0000000005AE0000-0x0000000005B72000-memory.dmp
memory/4224-142-0x00000000057B0000-0x0000000005816000-memory.dmp
memory/4224-144-0x0000000007420000-0x0000000007A9A000-memory.dmp
memory/4224-145-0x0000000006300000-0x000000000631A000-memory.dmp
memory/4224-143-0x0000000005DE0000-0x0000000005DFE000-memory.dmp
memory/4224-141-0x0000000005690000-0x00000000056F6000-memory.dmp
memory/4224-140-0x0000000004F10000-0x0000000005538000-memory.dmp
memory/4224-139-0x0000000004830000-0x0000000004866000-memory.dmp
memory/4420-154-0x0000000000550000-0x000000000056A000-memory.dmp
memory/4420-155-0x0000000005470000-0x000000000550C000-memory.dmp