Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240611-en - resource tags
- submitted
13/06/2024, 19:10
General
- Target 101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca.exe
- Size 4.8MB
- Sample240613-xvtkzssdnj
- SHA256 101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca
Malware Config
Extracted
-
socks5systemz
-
csukioh.net
-
http://csukioh.net/search/?q=67e28dd86c5af52d4607af197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a571ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff712c0ea9c9b33
-
http://csukioh.net/search/?q=67e28dd86c5af52d4607af197c27d78406abdd88be4b12eab517aa5c96bd86e89d8545835a8bbc896c58e713bc90c91b36b5281fc235a925ed3e06d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d993bc866971e
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\101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca.exe"C:\Users\Admin\AppData\Local\Temp\101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-KU0LF.tmp\101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca.tmp"C:\Users\Admin\AppData\Local\Temp\is-KU0LF.tmp\101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca.tmp" /SL5="$40202,4808638,54272,C:\Users\Admin\AppData\Local\Temp\101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
moonvoiceassist32_64.exe
_iscrypt.dll
101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca.tmp
memory/852-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/852-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/852-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/912-96-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-99-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-117-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-114-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-68-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-110-0x00000000008E0000-0x0000000000982000-memory.dmp
memory/912-109-0x00000000008E0000-0x0000000000982000-memory.dmp
memory/912-71-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-74-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-77-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-80-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-83-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-86-0x00000000008E0000-0x0000000000982000-memory.dmp
memory/912-87-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-93-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-108-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-105-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/912-102-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/1360-7-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1360-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1668-63-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/1668-59-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/1668-60-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/1668-65-0x0000000000400000-0x00000000006EF000-memory.dmp