Analysis
- max time kernel
141s - max time network
142s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
31/03/2024, 04:14
General
- Target 1e923e1a2c8ce0b65c27c7eb4486cce24f376300d98e5aa2ef5f60ce306a39dc.exe
- Size 1.8MB
- Sample240331-et27madf3y
- SHA256 1e923e1a2c8ce0b65c27c7eb4486cce24f376300d98e5aa2ef5f60ce306a39dc
Malware Config
Extracted
-
socks5systemz
-
http://burewdi.com/search/?q=67e28dd83d0ef479150af9197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978a571ea771795af8e05c646db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c5e7909f3b
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\1e923e1a2c8ce0b65c27c7eb4486cce24f376300d98e5aa2ef5f60ce306a39dc.exe"C:\Users\Admin\AppData\Local\Temp\1e923e1a2c8ce0b65c27c7eb4486cce24f376300d98e5aa2ef5f60ce306a39dc.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-IUIF0.tmp\1e923e1a2c8ce0b65c27c7eb4486cce24f376300d98e5aa2ef5f60ce306a39dc.tmp"C:\Users\Admin\AppData\Local\Temp\is-IUIF0.tmp\1e923e1a2c8ce0b65c27c7eb4486cce24f376300d98e5aa2ef5f60ce306a39dc.tmp" /SL5="$80062,1538331,54272,C:\Users\Admin\AppData\Local\Temp\1e923e1a2c8ce0b65c27c7eb4486cce24f376300d98e5aa2ef5f60ce306a39dc.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
_iscrypt.dll
1e923e1a2c8ce0b65c27c7eb4486cce24f376300d98e5aa2ef5f60ce306a39dc.tmp
memory/248-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/248-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/248-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1728-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/1728-50-0x0000000002340000-0x0000000002341000-memory.dmp
memory/1728-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/2360-77-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-65-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/2360-97-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-94-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-49-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-90-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-53-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-54-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-57-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-60-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-63-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-46-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-68-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-69-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/2360-74-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-87-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-78-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/2360-81-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/2360-84-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4968-38-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4968-39-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4968-42-0x0000000000400000-0x00000000005AC000-memory.dmp
memory/4968-43-0x0000000000400000-0x00000000005AC000-memory.dmp