Analysis
- max time kernel
292s - max time network
301s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
24/06/2024, 06:00
General
- Target fce2c4739880cfb4ed6e7458c3be694ab08d28a33688496b81b25d14fbbbf7a5.exe
- Size 4.6MB
- Sample240624-gqs6nasdmk
- SHA256 fce2c4739880cfb4ed6e7458c3be694ab08d28a33688496b81b25d14fbbbf7a5
Malware Config
Extracted
-
socks5systemz
-
betkwtg.com
-
http://betkwtg.com/search/?q=67e28dd86d5ff028450dff177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff613c0e79c9838
-
http://betkwtg.com/search/?q=67e28dd86d5ff028450dff177c27d78406abdd88be4b12eab517aa5c96bd86e89d864b805a8bbc896c58e713bc90c91936b5281fc235a925ed3e56d6bd974a95129070b616e96cc92be510b866db52bee348ee4c2b14a82966836f23d7f210c7ee9c983bc5669415
Signatures
- Detect Socks5Systemz Payload 3 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\fce2c4739880cfb4ed6e7458c3be694ab08d28a33688496b81b25d14fbbbf7a5.exe"C:\Users\Admin\AppData\Local\Temp\fce2c4739880cfb4ed6e7458c3be694ab08d28a33688496b81b25d14fbbbf7a5.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-UN7SL.tmp\fce2c4739880cfb4ed6e7458c3be694ab08d28a33688496b81b25d14fbbbf7a5.tmp"C:\Users\Admin\AppData\Local\Temp\is-UN7SL.tmp\fce2c4739880cfb4ed6e7458c3be694ab08d28a33688496b81b25d14fbbbf7a5.tmp" /SL5="$80220,4543944,54272,C:\Users\Admin\AppData\Local\Temp\fce2c4739880cfb4ed6e7458c3be694ab08d28a33688496b81b25d14fbbbf7a5.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Audio Extractor\freeaudioextractor.exe"C:\Users\Admin\AppData\Local\Free Audio Extractor\freeaudioextractor.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Audio Extractor\freeaudioextractor.exe"C:\Users\Admin\AppData\Local\Free Audio Extractor\freeaudioextractor.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
freeaudioextractor.exe
fce2c4739880cfb4ed6e7458c3be694ab08d28a33688496b81b25d14fbbbf7a5.tmp
_iscrypt.dll
memory/2820-107-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-92-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-127-0x0000000000930000-0x00000000009D2000-memory.dmp
memory/2820-128-0x0000000000930000-0x00000000009D2000-memory.dmp
memory/2820-126-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-123-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-67-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-120-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-117-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-70-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-73-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-76-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-79-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-82-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-114-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-104-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-111-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-95-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-98-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-101-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-87-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/2820-85-0x0000000000930000-0x00000000009D2000-memory.dmp
memory/2956-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2956-69-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3144-64-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/3144-60-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/3144-59-0x0000000000400000-0x00000000006CD000-memory.dmp
memory/4676-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4676-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4676-2-0x0000000000401000-0x000000000040B000-memory.dmp