Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
08/04/2024, 10:46
General
- Target eb12d8d794cf494a7c77e1b82f4305f7.exe
- Size 4.4MB
- Sample240408-mtzeqsfc68
- SHA256 b409d205ae446b7ff2507e7ff4b5b4c9b63d76df8cbcda30407ee4d3d2bc7ff7
Malware Config
Extracted
-
socks5systemz
-
http://ckbjrze.net/search/?q=67e28dd86c09f220490efa1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffd14c7ec97993a
-
http://ckbjrze.net/search/?q=67e28dd86c09f220490efa1c7c27d78406abdd88be4b12eab517aa5c96bd86ec94824d895a8bbc896c58e713bc90c91f36b5281fc235a925ed3e5dd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee979f3cce6d9517
Signatures
- Detect Socks5Systemz Payload 4 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 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\eb12d8d794cf494a7c77e1b82f4305f7.exe"C:\Users\Admin\AppData\Local\Temp\eb12d8d794cf494a7c77e1b82f4305f7.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-5B8PU.tmp\eb12d8d794cf494a7c77e1b82f4305f7.tmp"C:\Users\Admin\AppData\Local\Temp\is-5B8PU.tmp\eb12d8d794cf494a7c77e1b82f4305f7.tmp" /SL5="$401CC,4296680,54272,C:\Users\Admin\AppData\Local\Temp\eb12d8d794cf494a7c77e1b82f4305f7.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\InfoMedia\infomedia.exe"C:\Users\Admin\AppData\Local\InfoMedia\infomedia.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\InfoMedia\infomedia.exe"C:\Users\Admin\AppData\Local\InfoMedia\infomedia.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
infomedia.exe
eb12d8d794cf494a7c77e1b82f4305f7.tmp
_iscrypt.dll
_isdecmp.dll
memory/1604-83-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-87-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-105-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-102-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-98-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/1604-97-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/1604-96-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-53-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-93-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-90-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-56-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-84-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/1604-60-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-61-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-64-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-67-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-70-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-74-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/1604-73-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1604-80-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1856-50-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1856-49-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1856-46-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/1856-45-0x0000000000400000-0x00000000006DA000-memory.dmp
memory/4592-57-0x0000000002340000-0x0000000002341000-memory.dmp
memory/4592-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/4592-55-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4752-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4752-54-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4752-2-0x0000000000400000-0x0000000000414000-memory.dmp