Analysis
- max time kernel
148s - max time network
155s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
30/03/2024, 21:31
General
- Target a7ff0ba1967090a8ed97be6e7787676e29929dd98047ae3ca605e59c20bd0cc4.exe
- Size 1.9MB
- Sample240330-1c2enafa3z
- SHA256 a7ff0ba1967090a8ed97be6e7787676e29929dd98047ae3ca605e59c20bd0cc4
Malware Config
Extracted
-
socks5systemz
-
http://ezmqvjz.ua/search/?q=67e28dd83f08f2204807f9497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c3eb969e3b
Signatures
- Detect Socks5Systemz Payload 2 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\a7ff0ba1967090a8ed97be6e7787676e29929dd98047ae3ca605e59c20bd0cc4.exe"C:\Users\Admin\AppData\Local\Temp\a7ff0ba1967090a8ed97be6e7787676e29929dd98047ae3ca605e59c20bd0cc4.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-N8LJU.tmp\a7ff0ba1967090a8ed97be6e7787676e29929dd98047ae3ca605e59c20bd0cc4.tmp"C:\Users\Admin\AppData\Local\Temp\is-N8LJU.tmp\a7ff0ba1967090a8ed97be6e7787676e29929dd98047ae3ca605e59c20bd0cc4.tmp" /SL5="$D0050,1652127,54272,C:\Users\Admin\AppData\Local\Temp\a7ff0ba1967090a8ed97be6e7787676e29929dd98047ae3ca605e59c20bd0cc4.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Audio Converter Lib\audioconverterlib.exe"C:\Users\Admin\AppData\Local\Audio Converter Lib\audioconverterlib.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Audio Converter Lib\audioconverterlib.exe"C:\Users\Admin\AppData\Local\Audio Converter Lib\audioconverterlib.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
audioconverterlib.exe
_iscrypt.dll
a7ff0ba1967090a8ed97be6e7787676e29929dd98047ae3ca605e59c20bd0cc4.tmp
memory/1616-39-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/1616-42-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/1616-43-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/1616-38-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-66-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-60-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-96-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-46-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-93-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-89-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-49-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-86-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-53-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-54-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-57-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-83-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-63-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-67-0x0000000000950000-0x00000000009F2000-memory.dmp
memory/3232-80-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-73-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-76-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3232-77-0x0000000000950000-0x00000000009F2000-memory.dmp
memory/3384-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/3384-50-0x0000000002340000-0x0000000002341000-memory.dmp
memory/3384-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/3940-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3940-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3940-2-0x0000000000400000-0x0000000000414000-memory.dmp