Analysis
- max time kernel
149s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
31/03/2024, 05:07
General
- Target e2a85669fa86f43152d3e95ca0259e8e223b44a4d6154fcd44be734b4b58b6db.exe
- Size 1.8MB
- Sample240331-fr9pcseg97
- SHA256 e2a85669fa86f43152d3e95ca0259e8e223b44a4d6154fcd44be734b4b58b6db
Malware Config
Extracted
-
socks5systemz
-
http://aaiynsy.ru/search/?q=67e28dd83f08f2204807f9497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c6ee929833
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 WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e2a85669fa86f43152d3e95ca0259e8e223b44a4d6154fcd44be734b4b58b6db.exe"C:\Users\Admin\AppData\Local\Temp\e2a85669fa86f43152d3e95ca0259e8e223b44a4d6154fcd44be734b4b58b6db.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-6E6QI.tmp\e2a85669fa86f43152d3e95ca0259e8e223b44a4d6154fcd44be734b4b58b6db.tmp"C:\Users\Admin\AppData\Local\Temp\is-6E6QI.tmp\e2a85669fa86f43152d3e95ca0259e8e223b44a4d6154fcd44be734b4b58b6db.tmp" /SL5="$90226,1551310,54272,C:\Users\Admin\AppData\Local\Temp\e2a85669fa86f43152d3e95ca0259e8e223b44a4d6154fcd44be734b4b58b6db.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
Loading Replay Monitor...
Downloads
anyaudiorecord.exe
e2a85669fa86f43152d3e95ca0259e8e223b44a4d6154fcd44be734b4b58b6db.tmp
_iscrypt.dll
memory/240-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/240-6-0x0000000002340000-0x0000000002341000-memory.dmp
memory/240-50-0x0000000002340000-0x0000000002341000-memory.dmp
memory/2312-37-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2312-38-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2312-41-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2312-42-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-54-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-81-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-46-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-49-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-45-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-53-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-97-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-57-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-60-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-63-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-67-0x0000000000890000-0x0000000000932000-memory.dmp
memory/3408-66-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-69-0x0000000000890000-0x0000000000932000-memory.dmp
memory/3408-74-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-77-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-80-0x0000000000890000-0x0000000000932000-memory.dmp
memory/3408-94-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-84-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-87-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/3408-90-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4064-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4064-0-0x0000000000400000-0x0000000000414000-memory.dmp