Analysis
- max time kernel
141s - max time network
127s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
30/03/2024, 01:42
General
- Target f412100183697c41419dd201228514df5a0aad8703098ab4b418e2f446765b5d.exe
- Size 1.9MB
- Sample240330-b4zygafa88
- SHA256 f412100183697c41419dd201228514df5a0aad8703098ab4b418e2f446765b5d
Malware Config
Extracted
-
socks5systemz
-
http://bourunh.com/search/?q=67e28dd83e5cf579400faa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe16c6ec959838
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 WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f412100183697c41419dd201228514df5a0aad8703098ab4b418e2f446765b5d.exe"C:\Users\Admin\AppData\Local\Temp\f412100183697c41419dd201228514df5a0aad8703098ab4b418e2f446765b5d.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-9DEUT.tmp\f412100183697c41419dd201228514df5a0aad8703098ab4b418e2f446765b5d.tmp"C:\Users\Admin\AppData\Local\Temp\is-9DEUT.tmp\f412100183697c41419dd201228514df5a0aad8703098ab4b418e2f446765b5d.tmp" /SL5="$4022E,1608920,54272,C:\Users\Admin\AppData\Local\Temp\f412100183697c41419dd201228514df5a0aad8703098ab4b418e2f446765b5d.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Codec Pack Update\codecpackupdate.exe"C:\Users\Admin\AppData\Local\Codec Pack Update\codecpackupdate.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Codec Pack Update\codecpackupdate.exe"C:\Users\Admin\AppData\Local\Codec Pack Update\codecpackupdate.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
codecpackupdate.exe
_iscrypt.dll
f412100183697c41419dd201228514df5a0aad8703098ab4b418e2f446765b5d.tmp
memory/1728-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1728-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1728-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2772-75-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-61-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-98-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-95-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-46-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-91-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-88-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-49-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-85-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-82-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-54-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-55-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-58-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-79-0x00000000008B0000-0x0000000000952000-memory.dmp
memory/2772-64-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-67-0x00000000008B0000-0x0000000000952000-memory.dmp
memory/2772-68-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/2772-70-0x00000000008B0000-0x0000000000952000-memory.dmp
memory/2772-78-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/4552-7-0x0000000002440000-0x0000000002441000-memory.dmp
memory/4552-50-0x0000000002440000-0x0000000002441000-memory.dmp
memory/4552-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/5020-38-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/5020-53-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/5020-39-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/5020-43-0x0000000000400000-0x00000000005B1000-memory.dmp
memory/5020-42-0x0000000000400000-0x00000000005B1000-memory.dmp