Analysis
- max time kernel
152s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
02/06/2024, 01:22
General
- Target a4055964f3c620c0e4c0aa5ce9ff2a28e249a472f6bb7f6c4c356f4bf1b94388.exe
- Size 6.5MB
- Sample240602-brrfkaee85
- SHA256 a4055964f3c620c0e4c0aa5ce9ff2a28e249a472f6bb7f6c4c356f4bf1b94388
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Detects executables packed with VMProtect. 16 IoCs
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a4055964f3c620c0e4c0aa5ce9ff2a28e249a472f6bb7f6c4c356f4bf1b94388.exe"C:\Users\Admin\AppData\Local\Temp\a4055964f3c620c0e4c0aa5ce9ff2a28e249a472f6bb7f6c4c356f4bf1b94388.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-G6BUE.tmp\a4055964f3c620c0e4c0aa5ce9ff2a28e249a472f6bb7f6c4c356f4bf1b94388.tmp"C:\Users\Admin\AppData\Local\Temp\is-G6BUE.tmp\a4055964f3c620c0e4c0aa5ce9ff2a28e249a472f6bb7f6c4c356f4bf1b94388.tmp" /SL5="$A003E,6558453,54272,C:\Users\Admin\AppData\Local\Temp\a4055964f3c620c0e4c0aa5ce9ff2a28e249a472f6bb7f6c4c356f4bf1b94388.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe"C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe"C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -s3⤵
- Executes dropped EXE
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4104 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
berryplayer32.exe
_iscrypt.dll
a4055964f3c620c0e4c0aa5ce9ff2a28e249a472f6bb7f6c4c356f4bf1b94388.tmp
memory/1804-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1804-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1804-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2112-60-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2112-61-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2112-62-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2112-65-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-86-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-87-0x0000000000AF0000-0x0000000000B92000-memory.dmp
memory/2540-113-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-71-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-75-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-78-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-81-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-84-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-109-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-68-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-94-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-97-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-100-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-102-0x0000000000400000-0x0000000000931000-memory.dmp
memory/2540-106-0x0000000000400000-0x0000000000931000-memory.dmp
memory/3668-8-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3668-70-0x0000000000400000-0x00000000004BA000-memory.dmp