Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
09/09/2022, 00:45
General
- Target SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe
- Size 890KB
- Sample220909-a3333adcbr
- SHA256 0f896e5abb5bed9dc6f294e16d438e144cfee438659de1d98fee565218007be3
Malware Config
Extracted
-
blustealer
-
https://api.telegram.org/bot5412597166:AAGUaWxuTxxhNb-NRhiURcTMzuW9nhGoEs/sendMessage?chat_id=932962718
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 4 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 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\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exeC:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1232158.25080.exe2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
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
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/644-140-0x00000000078B0000-0x0000000007F2A000-memory.dmp
memory/644-135-0x0000000004C60000-0x0000000004C96000-memory.dmp
memory/644-136-0x0000000005350000-0x0000000005978000-memory.dmp
memory/644-137-0x0000000005980000-0x00000000059E6000-memory.dmp
memory/644-138-0x0000000005BE0000-0x0000000005C46000-memory.dmp
memory/644-139-0x0000000006210000-0x000000000622E000-memory.dmp
memory/644-141-0x0000000006720000-0x000000000673A000-memory.dmp
memory/1912-151-0x0000000005BA0000-0x0000000005C3C000-memory.dmp
memory/1912-150-0x0000000000D90000-0x0000000000DAA000-memory.dmp
memory/3760-145-0x0000000000400000-0x0000000000425000-memory.dmp
memory/3760-148-0x0000000000400000-0x0000000000425000-memory.dmp
memory/3760-143-0x0000000000400000-0x0000000000425000-memory.dmp
memory/3760-152-0x0000000000400000-0x0000000000425000-memory.dmp
memory/4956-132-0x00000000007D0000-0x00000000008B4000-memory.dmp
memory/4956-133-0x0000000005490000-0x00000000054B2000-memory.dmp