Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
09/06/2024, 14:25
General
- Target a64d0b5204a848ff9d9c8cb495b7a0b31c8a4690057fadc8690e5868f348e157.exe
- Size 4.6MB
- Sample240609-rrl4vacb76
- SHA256 a64d0b5204a848ff9d9c8cb495b7a0b31c8a4690057fadc8690e5868f348e157
Malware Config
Extracted
-
socks5systemz
-
bozxbyu.com
-
http://bozxbyu.com/search/?q=67e28dd83954f37e1207fe177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa45e8889b5e4fa9281ae978f671ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff818c4ec979a3e
-
http://bozxbyu.com/search/?q=67e28dd83954f37e1207fe177c27d78406abdd88be4b12eab517aa5c96bd86eb90804b815a8bbc896c58e713bc90c91036b5281fc235a925ed3e55d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee92933fce6d9613
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\a64d0b5204a848ff9d9c8cb495b7a0b31c8a4690057fadc8690e5868f348e157.exe"C:\Users\Admin\AppData\Local\Temp\a64d0b5204a848ff9d9c8cb495b7a0b31c8a4690057fadc8690e5868f348e157.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-I1NG8.tmp\a64d0b5204a848ff9d9c8cb495b7a0b31c8a4690057fadc8690e5868f348e157.tmp"C:\Users\Admin\AppData\Local\Temp\is-I1NG8.tmp\a64d0b5204a848ff9d9c8cb495b7a0b31c8a4690057fadc8690e5868f348e157.tmp" /SL5="$6020E,4597049,54272,C:\Users\Admin\AppData\Local\Temp\a64d0b5204a848ff9d9c8cb495b7a0b31c8a4690057fadc8690e5868f348e157.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
a64d0b5204a848ff9d9c8cb495b7a0b31c8a4690057fadc8690e5868f348e157.tmp
_iscrypt.dll
virtualsoundcard32.exe
memory/3912-94-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-77-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-118-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-115-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-111-0x0000000002890000-0x0000000002932000-memory.dmp
memory/3912-110-0x0000000002890000-0x0000000002932000-memory.dmp
memory/3912-109-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-67-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-106-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-103-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-70-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-71-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-74-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-100-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-80-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-83-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-84-0x0000000002890000-0x0000000002932000-memory.dmp
memory/3912-88-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/3912-97-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/4820-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4820-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4820-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4960-60-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/4960-59-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/4960-64-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/4960-63-0x0000000000400000-0x00000000006A5000-memory.dmp
memory/5104-10-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/5104-69-0x0000000000400000-0x00000000004BA000-memory.dmp