Analysis
- max time kernel
142s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
31/03/2023, 08:10
General
- Target PO-22-0018058_pdf.exe
- Size 63KB
- Sample230331-j2pnqagh89
- SHA256 8e30c72622b6ef1dedee5b6e5b0d0a57272fd3d5caad2f50bd841e94bcdbf171
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO-22-0018058_pdf.exe"C:\Users\Admin\AppData\Local\Temp\PO-22-0018058_pdf.exe"1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAyAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
__PSScriptPolicyTest_a0b13phr.ghv.ps1
memory/2392-133-0x0000000000E80000-0x0000000000E96000-memory.dmp
memory/2392-134-0x0000000005850000-0x0000000005860000-memory.dmp
memory/2392-135-0x0000000006DD0000-0x0000000006DF2000-memory.dmp
memory/2392-166-0x00000000079B0000-0x0000000007B72000-memory.dmp
memory/2392-165-0x00000000075F0000-0x0000000007640000-memory.dmp
memory/2392-164-0x0000000006A20000-0x0000000006A2A000-memory.dmp
memory/2392-163-0x0000000007250000-0x00000000072E2000-memory.dmp
memory/2392-162-0x0000000007D90000-0x0000000008334000-memory.dmp
memory/2392-155-0x0000000005850000-0x0000000005860000-memory.dmp
memory/3504-151-0x0000000005BB0000-0x0000000005BCE000-memory.dmp
memory/3504-152-0x0000000007220000-0x000000000789A000-memory.dmp
memory/3504-153-0x00000000060A0000-0x00000000060BA000-memory.dmp
memory/3504-154-0x00000000027B0000-0x00000000027C0000-memory.dmp
memory/3504-149-0x00000000027B0000-0x00000000027C0000-memory.dmp
memory/3504-156-0x00000000027B0000-0x00000000027C0000-memory.dmp
memory/3504-157-0x00000000027B0000-0x00000000027C0000-memory.dmp
memory/3504-158-0x00000000027B0000-0x00000000027C0000-memory.dmp
memory/3504-150-0x00000000027B0000-0x00000000027C0000-memory.dmp
memory/3504-139-0x0000000005590000-0x00000000055F6000-memory.dmp
memory/3504-138-0x0000000004D90000-0x0000000004DF6000-memory.dmp
memory/3504-137-0x0000000004E30000-0x0000000005458000-memory.dmp
memory/3504-136-0x0000000002280000-0x00000000022B6000-memory.dmp