Analysis
- max time kernel
592s - max time network
502s - platform
windows10-2004_x64 - resource
win10v2004-20230221-es - resource tags
- submitted
14/04/2023, 16:51
General
- Target Arc_Digital_AdjuntoQCRDVJCKCIGJOYRkhymk.zip
- Size 3.7MB
- Sample230414-vcwaracc6s
- SHA256 5f6ac987af2c3bde39b070297a73cc5232cc3f39b10e41718ba94e8cba62f06d
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 22 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
Processes
-
C:\Windows\Explorer.exeC:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\Arc_Digital_AdjuntoQCRDVJCKCIGJOYRkhymk.zip1⤵
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
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C:\Program Files\7-Zip\7zG.exe"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Desktop\Arc_Digital_AdjuntoQCRDVJCKCIGJOYRkhymk\" -spe -an -ai#7zMap2825:136:7zEvent238731⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
-
C:\Users\Admin\Desktop\Arc_Digital_AdjuntoQCRDVJCKCIGJOYRkhymk\arc_digital_adjuntosHAFHKODIXKLTBRQlrjhc.exe"C:\Users\Admin\Desktop\Arc_Digital_AdjuntoQCRDVJCKCIGJOYRkhymk\arc_digital_adjuntosHAFHKODIXKLTBRQlrjhc.exe"1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
arc_digital_adjuntosHAFHKODIXKLTBRQlrjhc.exe
arc_digital_adjuntosHAFHKODIXKLTBRQlrjhc.exe
memory/4860-139-0x0000000007DC0000-0x0000000007DC1000-memory.dmp
memory/4860-140-0x0000000000400000-0x0000000001400000-memory.dmp
memory/4860-141-0x0000000007DC0000-0x0000000007DC1000-memory.dmp
memory/4860-142-0x0000000000400000-0x0000000001400000-memory.dmp
memory/4860-143-0x0000000000400000-0x0000000001400000-memory.dmp