Analysis
- max time kernel
145s - max time network
132s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
31/03/2024, 06:14
General
- Target a5ca6027c7b896e676266b2efd2e3669d8b28f52b9df45b8d3f7076d1e8b8eb6.exe
- Size 1.8MB
- Sample240331-gzepmaff86
- SHA256 a5ca6027c7b896e676266b2efd2e3669d8b28f52b9df45b8d3f7076d1e8b8eb6
Malware Config
Extracted
-
socks5systemz
-
http://aqqoxze.ru/search/?q=67e28dd83f08f2204807f9497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978ff71ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c6ea92983e
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\a5ca6027c7b896e676266b2efd2e3669d8b28f52b9df45b8d3f7076d1e8b8eb6.exe"C:\Users\Admin\AppData\Local\Temp\a5ca6027c7b896e676266b2efd2e3669d8b28f52b9df45b8d3f7076d1e8b8eb6.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-5ADVB.tmp\a5ca6027c7b896e676266b2efd2e3669d8b28f52b9df45b8d3f7076d1e8b8eb6.tmp"C:\Users\Admin\AppData\Local\Temp\is-5ADVB.tmp\a5ca6027c7b896e676266b2efd2e3669d8b28f52b9df45b8d3f7076d1e8b8eb6.tmp" /SL5="$6006E,1520324,54272,C:\Users\Admin\AppData\Local\Temp\a5ca6027c7b896e676266b2efd2e3669d8b28f52b9df45b8d3f7076d1e8b8eb6.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe"C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe"C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
anyaudiorecord.exe
a5ca6027c7b896e676266b2efd2e3669d8b28f52b9df45b8d3f7076d1e8b8eb6.tmp
_iscrypt.dll
memory/960-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/960-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3240-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/3240-6-0x0000000002340000-0x0000000002341000-memory.dmp
memory/3240-50-0x0000000002340000-0x0000000002341000-memory.dmp
memory/3408-37-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-38-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-42-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-41-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-54-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-67-0x00000000008A0000-0x0000000000942000-memory.dmp
memory/4692-46-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-53-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-44-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-57-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-60-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-63-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-66-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-49-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-68-0x00000000008A0000-0x0000000000942000-memory.dmp
memory/4692-74-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-77-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-78-0x00000000008A0000-0x0000000000942000-memory.dmp
memory/4692-81-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-84-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-87-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-90-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-94-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4692-97-0x0000000000400000-0x00000000005AC000-memory.dmp