Analysis
- max time kernel
293s - max time network
300s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
13/06/2024, 23:23
General
- Target 753ea801ae752661103a6dc26db54185f6bf7294cd7957343583f0377cae47a1.exe
- Size 4.6MB
- Sample240613-3dd2vsyepl
- SHA256 753ea801ae752661103a6dc26db54185f6bf7294cd7957343583f0377cae47a1
Malware Config
Extracted
-
socks5systemz
-
bfuggwp.com
-
http://bfuggwp.com/search/?q=67e28dd8685af379125bfd4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c2ee959d32
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- 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\753ea801ae752661103a6dc26db54185f6bf7294cd7957343583f0377cae47a1.exe"C:\Users\Admin\AppData\Local\Temp\753ea801ae752661103a6dc26db54185f6bf7294cd7957343583f0377cae47a1.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-23DRU.tmp\753ea801ae752661103a6dc26db54185f6bf7294cd7957343583f0377cae47a1.tmp"C:\Users\Admin\AppData\Local\Temp\is-23DRU.tmp\753ea801ae752661103a6dc26db54185f6bf7294cd7957343583f0377cae47a1.tmp" /SL5="$601F4,4587786,54272,C:\Users\Admin\AppData\Local\Temp\753ea801ae752661103a6dc26db54185f6bf7294cd7957343583f0377cae47a1.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
753ea801ae752661103a6dc26db54185f6bf7294cd7957343583f0377cae47a1.tmp
virtualsoundcard.exe
_iscrypt.dll
memory/164-59-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/164-60-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/164-64-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/1716-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1716-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1716-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4136-82-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-95-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-131-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-70-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-73-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-76-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-79-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-126-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-85-0x0000000000910000-0x00000000009B2000-memory.dmp
memory/4136-87-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-92-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-67-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-98-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-101-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-104-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-107-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-111-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-114-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-117-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-120-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4136-123-0x0000000000400000-0x00000000006A7000-memory.dmp
memory/4420-10-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4420-69-0x0000000000400000-0x00000000004BA000-memory.dmp