Analysis
- max time kernel
293s - max time network
303s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
13/06/2024, 23:24
General
- Target 7c500acb7def7d91f1a7b13599c3ca5215ed49c9553420688e384b7a74b03cfb.exe
- Size 4.9MB
- Sample240613-3dv1daverh
- SHA256 7c500acb7def7d91f1a7b13599c3ca5215ed49c9553420688e384b7a74b03cfb
Malware Config
Extracted
-
socks5systemz
-
bfmchos.com
-
http://bfmchos.com/search/?q=67e28dd8645fa72f495daa1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c2ee949938
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\7c500acb7def7d91f1a7b13599c3ca5215ed49c9553420688e384b7a74b03cfb.exe"C:\Users\Admin\AppData\Local\Temp\7c500acb7def7d91f1a7b13599c3ca5215ed49c9553420688e384b7a74b03cfb.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-2RNLO.tmp\7c500acb7def7d91f1a7b13599c3ca5215ed49c9553420688e384b7a74b03cfb.tmp"C:\Users\Admin\AppData\Local\Temp\is-2RNLO.tmp\7c500acb7def7d91f1a7b13599c3ca5215ed49c9553420688e384b7a74b03cfb.tmp" /SL5="$502FE,4922774,54272,C:\Users\Admin\AppData\Local\Temp\7c500acb7def7d91f1a7b13599c3ca5215ed49c9553420688e384b7a74b03cfb.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
audioconverter32.exe
7c500acb7def7d91f1a7b13599c3ca5215ed49c9553420688e384b7a74b03cfb.tmp
_iscrypt.dll
memory/876-106-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-100-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-130-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-125-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-122-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-119-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-116-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-113-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-68-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-110-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-72-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-75-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-78-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-81-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-103-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-91-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-84-0x0000000002900000-0x00000000029A2000-memory.dmp
memory/876-94-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-97-0x0000000000400000-0x000000000070F000-memory.dmp
memory/876-86-0x0000000000400000-0x000000000070F000-memory.dmp
memory/2952-16-0x00007FFED5710000-0x00007FFED58EB000-memory.dmp
memory/2952-71-0x00007FFED5710000-0x00007FFED58EB000-memory.dmp
memory/2952-67-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3736-63-0x0000000000400000-0x000000000070F000-memory.dmp
memory/3736-60-0x0000000000400000-0x000000000070F000-memory.dmp
memory/3736-59-0x0000000000400000-0x000000000070F000-memory.dmp
memory/3984-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3984-66-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3984-3-0x00007FFED5710000-0x00007FFED58EB000-memory.dmp