Analysis
- max time kernel
142s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
31/03/2024, 08:28
General
- Target b1675b90752f525fe619da762ee7ed0178fac27ae04c14ccfee6e93efe05bed3.exe
- Size 2.0MB
- Sample240331-kdhe6shc98
- SHA256 b1675b90752f525fe619da762ee7ed0178fac27ae04c14ccfee6e93efe05bed3
Malware Config
Extracted
-
socks5systemz
-
http://csubkbo.net/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe19c7ec9d9a3a
-
http://csubkbo.net/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12eab517aa5c96bd86eb97854b815a8bbc896c58e713bc90c91936b5281fc235a925ed3e04d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee94923cce679617
Signatures
- Detect Socks5Systemz Payload 5 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 WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b1675b90752f525fe619da762ee7ed0178fac27ae04c14ccfee6e93efe05bed3.exe"C:\Users\Admin\AppData\Local\Temp\b1675b90752f525fe619da762ee7ed0178fac27ae04c14ccfee6e93efe05bed3.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-SETCM.tmp\b1675b90752f525fe619da762ee7ed0178fac27ae04c14ccfee6e93efe05bed3.tmp"C:\Users\Admin\AppData\Local\Temp\is-SETCM.tmp\b1675b90752f525fe619da762ee7ed0178fac27ae04c14ccfee6e93efe05bed3.tmp" /SL5="$40230,1741889,54272,C:\Users\Admin\AppData\Local\Temp\b1675b90752f525fe619da762ee7ed0178fac27ae04c14ccfee6e93efe05bed3.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe"C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe"C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
anyaudiorecord.exe
_iscrypt.dll
b1675b90752f525fe619da762ee7ed0178fac27ae04c14ccfee6e93efe05bed3.tmp
memory/1584-7-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/1584-51-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/1584-49-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/2364-48-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2364-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2364-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4228-75-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-68-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-47-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-100-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-97-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-50-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-93-0x00000000007F0000-0x0000000000892000-memory.dmp
memory/4228-54-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-55-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-58-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-61-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-64-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-67-0x00000000007F0000-0x0000000000892000-memory.dmp
memory/4228-45-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-70-0x00000000007F0000-0x0000000000892000-memory.dmp
memory/4228-92-0x00000000007F0000-0x0000000000892000-memory.dmp
memory/4228-78-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-79-0x00000000007F0000-0x0000000000892000-memory.dmp
memory/4228-82-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-85-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-88-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/4228-91-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/5044-38-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/5044-39-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/5044-42-0x0000000000400000-0x00000000005DB000-memory.dmp
memory/5044-43-0x0000000000400000-0x00000000005DB000-memory.dmp