Analysis
- max time kernel
300s - max time network
261s - platform
windows10-1703_x64 - resource
win10-20240611-en - resource tags
- submitted
21/06/2024, 00:00
General
- Target ff219dbf022b9c7729b6ac743cd4ac30fd37595cc6175e74cae62aa5d12bc084.exe
- Size 4.8MB
- Sample240621-aajhysshne
- SHA256 ff219dbf022b9c7729b6ac743cd4ac30fd37595cc6175e74cae62aa5d12bc084
Malware Config
Extracted
-
socks5systemz
-
bfzoepe.com
-
http://bfzoepe.com/search/?q=67e28dd8690ba728400aae4c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff718c2e7959332
Signatures
- Detect Socks5Systemz Payload 1 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\ff219dbf022b9c7729b6ac743cd4ac30fd37595cc6175e74cae62aa5d12bc084.exe"C:\Users\Admin\AppData\Local\Temp\ff219dbf022b9c7729b6ac743cd4ac30fd37595cc6175e74cae62aa5d12bc084.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-ANNP0.tmp\ff219dbf022b9c7729b6ac743cd4ac30fd37595cc6175e74cae62aa5d12bc084.tmp"C:\Users\Admin\AppData\Local\Temp\is-ANNP0.tmp\ff219dbf022b9c7729b6ac743cd4ac30fd37595cc6175e74cae62aa5d12bc084.tmp" /SL5="$701FE,4786170,54272,C:\Users\Admin\AppData\Local\Temp\ff219dbf022b9c7729b6ac743cd4ac30fd37595cc6175e74cae62aa5d12bc084.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
m4atomp3converter.exe
ff219dbf022b9c7729b6ac743cd4ac30fd37595cc6175e74cae62aa5d12bc084.tmp
_iscrypt.dll
memory/2240-63-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2240-59-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2240-60-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2912-68-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2912-10-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3620-81-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-91-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-130-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-125-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-69-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-72-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-75-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-78-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-122-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-84-0x00000000007C0000-0x0000000000862000-memory.dmp
memory/3620-86-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-65-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-94-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-97-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-100-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-103-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-106-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-110-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-113-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-116-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/3620-119-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4192-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4192-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4192-67-0x0000000000400000-0x0000000000414000-memory.dmp