Analysis
- max time kernel
148s - max time network
155s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
31/03/2024, 04:13
General
- Target 8754c29710885345dfcb4bacc95694730cbd30473b602bbd68def44d0c1ba9c8.exe
- Size 2.0MB
- Sample240331-etkmkseb72
- SHA256 8754c29710885345dfcb4bacc95694730cbd30473b602bbd68def44d0c1ba9c8
Malware Config
Extracted
-
socks5systemz
-
http://bnelgbh.com/search/?q=67e28dd83d54f12b140cff197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a271ea771795af8e05c644db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c5e7909a3c
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\8754c29710885345dfcb4bacc95694730cbd30473b602bbd68def44d0c1ba9c8.exe"C:\Users\Admin\AppData\Local\Temp\8754c29710885345dfcb4bacc95694730cbd30473b602bbd68def44d0c1ba9c8.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-4S7J7.tmp\8754c29710885345dfcb4bacc95694730cbd30473b602bbd68def44d0c1ba9c8.tmp"C:\Users\Admin\AppData\Local\Temp\is-4S7J7.tmp\8754c29710885345dfcb4bacc95694730cbd30473b602bbd68def44d0c1ba9c8.tmp" /SL5="$6017E,1733198,54272,C:\Users\Admin\AppData\Local\Temp\8754c29710885345dfcb4bacc95694730cbd30473b602bbd68def44d0c1ba9c8.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
8754c29710885345dfcb4bacc95694730cbd30473b602bbd68def44d0c1ba9c8.tmp
_iscrypt.dll
memory/916-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/916-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2120-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/2120-6-0x0000000002340000-0x0000000002341000-memory.dmp
memory/2120-50-0x0000000002340000-0x0000000002341000-memory.dmp
memory/2528-37-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/2528-38-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/2528-42-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/2528-41-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-54-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-67-0x0000000000A00000-0x0000000000AA2000-memory.dmp
memory/3812-46-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-53-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-44-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-57-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-60-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-63-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-66-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-49-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-68-0x0000000000A00000-0x0000000000AA2000-memory.dmp
memory/3812-74-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-77-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-78-0x0000000000A00000-0x0000000000AA2000-memory.dmp
memory/3812-81-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-84-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-87-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-90-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-94-0x0000000000400000-0x00000000005DD000-memory.dmp
memory/3812-97-0x0000000000400000-0x00000000005DD000-memory.dmp