Analysis
- max time kernel
146s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240611-en - resource tags
- submitted
25/06/2024, 10:20
General
- Target dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.exe
- Size 4.8MB
- Sample240625-mdf88atfmf
- SHA256 dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8
Malware Config
Extracted
-
socks5systemz
-
bumlrvi.com
-
http://bumlrvi.com/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff612c1ef9c9b3a
-
http://bumlrvi.com/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12eab517aa5c96bd86ea93834896148ab2865b77f80ebad9c50f7cb63037ed2ab423a4344383ba915d911ec07bb606a0708727e40ea678c751bbe34efb0e2807e12571c17f3e83fe16c1e6969b3bc46e97
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\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.exe"C:\Users\Admin\AppData\Local\Temp\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-9TKNL.tmp\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.tmp"C:\Users\Admin\AppData\Local\Temp\is-9TKNL.tmp\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.tmp" /SL5="$4022E,4749319,54272,C:\Users\Admin\AppData\Local\Temp\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
mp3ripfreeedition.exe
dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.tmp
_iscrypt.dll
memory/240-10-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/240-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1476-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1476-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1476-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1528-59-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/1528-60-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/1528-63-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-74-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-89-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-71-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-67-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-75-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-78-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-81-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-84-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-88-0x00000000008C0000-0x0000000000962000-memory.dmp
memory/2496-68-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-95-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-98-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-101-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-104-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-107-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-110-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-111-0x00000000008C0000-0x0000000000962000-memory.dmp
memory/2496-112-0x00000000008C0000-0x0000000000962000-memory.dmp
memory/2496-116-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/2496-119-0x0000000000400000-0x00000000006C1000-memory.dmp