Analysis
- max time kernel
141s - max time network
127s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
31/03/2024, 15:53
General
- Target fba7416c83d12d2ef12cee5ee6bc7df31bab01a08e2e2fcb2cab95c7edbda2e9.exe
- Size 1.8MB
- Sample240331-tbvr6aec91
- SHA256 fba7416c83d12d2ef12cee5ee6bc7df31bab01a08e2e2fcb2cab95c7edbda2e9
Malware Config
Extracted
-
socks5systemz
-
http://builvib.com/search/?q=67e28dd86a5ca17c4108f81b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f571ea771795af8e05c646db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe18c0ef919d39
-
http://builvib.com/search/?q=67e28dd86a5ca17c4108f81b7c27d78406abdd88be4b12eab517aa5c96bd86e8938444895a8bbc896c58e713bc90c91836b5281fc235a925ed3e56d6bd974a95129070b615e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94933bcd6b9114
Signatures
- Detect Socks5Systemz Payload 5 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
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C:\Users\Admin\AppData\Local\Temp\fba7416c83d12d2ef12cee5ee6bc7df31bab01a08e2e2fcb2cab95c7edbda2e9.exe"C:\Users\Admin\AppData\Local\Temp\fba7416c83d12d2ef12cee5ee6bc7df31bab01a08e2e2fcb2cab95c7edbda2e9.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-SUT5A.tmp\fba7416c83d12d2ef12cee5ee6bc7df31bab01a08e2e2fcb2cab95c7edbda2e9.tmp"C:\Users\Admin\AppData\Local\Temp\is-SUT5A.tmp\fba7416c83d12d2ef12cee5ee6bc7df31bab01a08e2e2fcb2cab95c7edbda2e9.tmp" /SL5="$40242,1557782,54272,C:\Users\Admin\AppData\Local\Temp\fba7416c83d12d2ef12cee5ee6bc7df31bab01a08e2e2fcb2cab95c7edbda2e9.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Any Audio Grabber\anyaudiograbber.exe"C:\Users\Admin\AppData\Local\Any Audio Grabber\anyaudiograbber.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Any Audio Grabber\anyaudiograbber.exe"C:\Users\Admin\AppData\Local\Any Audio Grabber\anyaudiograbber.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
anyaudiograbber.exe
_iscrypt.dll
fba7416c83d12d2ef12cee5ee6bc7df31bab01a08e2e2fcb2cab95c7edbda2e9.tmp
memory/2328-38-0x0000000000400000-0x0000000000602000-memory.dmp
memory/2328-37-0x0000000000400000-0x0000000000602000-memory.dmp
memory/2328-42-0x0000000000400000-0x0000000000602000-memory.dmp
memory/2328-41-0x0000000000400000-0x0000000000602000-memory.dmp
memory/2376-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2376-46-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2596-49-0x0000000002440000-0x0000000002441000-memory.dmp
memory/2596-6-0x0000000002440000-0x0000000002441000-memory.dmp
memory/2596-47-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/3156-56-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-76-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-52-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-53-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-45-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-59-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-62-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-64-0x0000000000800000-0x00000000008A2000-memory.dmp
memory/3156-66-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-68-0x0000000000800000-0x00000000008A2000-memory.dmp
memory/3156-73-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-48-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-77-0x0000000000800000-0x00000000008A2000-memory.dmp
memory/3156-80-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-83-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-86-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-89-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-90-0x0000000000800000-0x00000000008A2000-memory.dmp
memory/3156-91-0x0000000000800000-0x00000000008A2000-memory.dmp
memory/3156-95-0x0000000000400000-0x0000000000602000-memory.dmp
memory/3156-98-0x0000000000400000-0x0000000000602000-memory.dmp