Analysis
- max time kernel
292s - max time network
299s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
24/06/2024, 05:57
General
- Target ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.exe
- Size 5.4MB
- Sample240624-gnpepayfnc
- SHA256 ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20
Malware Config
Extracted
-
socks5systemz
-
dtocejh.info
-
http://dtocejh.info/search/?q=67e28dd86d5ff028450dff177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff613c0e7939332
Signatures
- Detect Socks5Systemz Payload 1 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\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.exe"C:\Users\Admin\AppData\Local\Temp\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-RA9B7.tmp\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.tmp"C:\Users\Admin\AppData\Local\Temp\is-RA9B7.tmp\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.tmp" /SL5="$70160,5404451,54272,C:\Users\Admin\AppData\Local\Temp\ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe"C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe"C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
soundrecorder32_64.exe
ef7bb8f96b97392ee285a9116f01456266a3a49d79b8489ad83455c3b4ff1f20.tmp
_iscrypt.dll
_isdecmp.dll
memory/500-109-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-116-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-136-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-131-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-128-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-125-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-72-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-122-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-119-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-75-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-78-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-81-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-84-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-87-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-88-0x0000000002320000-0x00000000023C2000-memory.dmp
memory/500-92-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-97-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-100-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-103-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-106-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/500-112-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/1612-22-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1612-74-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3368-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3368-73-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3368-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3532-69-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/3532-66-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/3532-65-0x0000000000400000-0x00000000006D4000-memory.dmp