Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240611-en - resource tags
- submitted
24/06/2024, 08:51
General
- Target 2891069b33e9c4d1581de90b2033fb99b4ef9622bf27d45bdd8b7a2627191fed.exe
- Size 4.4MB
- Sample240624-kse9cstfja
- SHA256 2891069b33e9c4d1581de90b2033fb99b4ef9622bf27d45bdd8b7a2627191fed
Malware Config
Extracted
-
socks5systemz
-
dldsabu.info
-
http://dldsabu.info/search/?q=67e28dd86c5af52d4607af197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a571ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff613c1e6949f33
-
http://dldsabu.info/search/?q=67e28dd86c5af52d4607af197c27d78406abdd88be4b12eab517aa5c96bd86ee968448845a8bbc896c58e713bc90c91b36b5281fc235a925ed3e06d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9c983ac46e931e
Signatures
- Detect Socks5Systemz Payload 3 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\2891069b33e9c4d1581de90b2033fb99b4ef9622bf27d45bdd8b7a2627191fed.exe"C:\Users\Admin\AppData\Local\Temp\2891069b33e9c4d1581de90b2033fb99b4ef9622bf27d45bdd8b7a2627191fed.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-LR28T.tmp\2891069b33e9c4d1581de90b2033fb99b4ef9622bf27d45bdd8b7a2627191fed.tmp"C:\Users\Admin\AppData\Local\Temp\is-LR28T.tmp\2891069b33e9c4d1581de90b2033fb99b4ef9622bf27d45bdd8b7a2627191fed.tmp" /SL5="$40210,4410916,54272,C:\Users\Admin\AppData\Local\Temp\2891069b33e9c4d1581de90b2033fb99b4ef9622bf27d45bdd8b7a2627191fed.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Winypux\winypux.exe"C:\Users\Admin\AppData\Local\Winypux\winypux.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Winypux\winypux.exe"C:\Users\Admin\AppData\Local\Winypux\winypux.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
_iscrypt.dll
2891069b33e9c4d1581de90b2033fb99b4ef9622bf27d45bdd8b7a2627191fed.tmp
winypux.exe
memory/2812-95-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-78-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-119-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-116-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-111-0x0000000000A40000-0x0000000000AE2000-memory.dmp
memory/2812-112-0x0000000000A40000-0x0000000000AE2000-memory.dmp
memory/2812-110-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-68-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-107-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-104-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-71-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-74-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-75-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-101-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-81-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-84-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-87-0x0000000000A40000-0x0000000000AE2000-memory.dmp
memory/2812-90-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/2812-98-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/4620-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4620-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4620-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4780-65-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/4780-62-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/4780-60-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/4780-59-0x0000000000400000-0x00000000006B5000-memory.dmp
memory/5072-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/5072-70-0x0000000000400000-0x00000000004BA000-memory.dmp