Analysis
- max time kernel
145s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
12/06/2024, 02:20
General
- Target d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.exe
- Size 4.6MB
- Sample240612-csqfbsyeqf
- SHA256 d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e
Malware Config
Extracted
-
socks5systemz
-
bmscdup.com
-
http://bmscdup.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff710c5e79c9b39
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Detects executables packed with VMProtect. 18 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
-
C:\Users\Admin\AppData\Local\Temp\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.exe"C:\Users\Admin\AppData\Local\Temp\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-62GBL.tmp\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.tmp"C:\Users\Admin\AppData\Local\Temp\is-62GBL.tmp\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.tmp" /SL5="$600EA,4616536,54272,C:\Users\Admin\AppData\Local\Temp\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.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=3808 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.tmp
_iscrypt.dll
virtualsoundcard32.exe
memory/868-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/868-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/868-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3264-95-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-99-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-115-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-111-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-68-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-107-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-104-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-72-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-75-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-76-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-78-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-81-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-84-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-88-0x00000000009A0000-0x0000000000A42000-memory.dmp
memory/3264-89-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3264-102-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3560-60-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3560-59-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3560-65-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3560-62-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4104-7-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4104-70-0x0000000000400000-0x00000000004BA000-memory.dmp