Analysis
- max time kernel
150s - max time network
155s - platform
windows11-21h2_x64 - resource
win11-20240319-en - resource tags
- submitted
30/03/2024, 19:19
General
- Target 1b0f5818b1aa29d506ce00022595a719ae9400e2ec0d0ef7af8531e19c50706c.exe
- Size 1.9MB
- Sample240330-x1mdvsdd66
- SHA256 1b0f5818b1aa29d506ce00022595a719ae9400e2ec0d0ef7af8531e19c50706c
Malware Config
Extracted
-
socks5systemz
-
http://ejsayay.ua/search/?q=67e28dd83e58f128495cab1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c2e9919832
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\1b0f5818b1aa29d506ce00022595a719ae9400e2ec0d0ef7af8531e19c50706c.exe"C:\Users\Admin\AppData\Local\Temp\1b0f5818b1aa29d506ce00022595a719ae9400e2ec0d0ef7af8531e19c50706c.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-MIA2C.tmp\1b0f5818b1aa29d506ce00022595a719ae9400e2ec0d0ef7af8531e19c50706c.tmp"C:\Users\Admin\AppData\Local\Temp\is-MIA2C.tmp\1b0f5818b1aa29d506ce00022595a719ae9400e2ec0d0ef7af8531e19c50706c.tmp" /SL5="$50268,1672502,54272,C:\Users\Admin\AppData\Local\Temp\1b0f5818b1aa29d506ce00022595a719ae9400e2ec0d0ef7af8531e19c50706c.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Audio Converter Lib\audioconverterlib.exe"C:\Users\Admin\AppData\Local\Audio Converter Lib\audioconverterlib.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Audio Converter Lib\audioconverterlib.exe"C:\Users\Admin\AppData\Local\Audio Converter Lib\audioconverterlib.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
audioconverterlib.exe
_iscrypt.dll
1b0f5818b1aa29d506ce00022595a719ae9400e2ec0d0ef7af8531e19c50706c.tmp
memory/2456-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2456-46-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2668-38-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2668-37-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2668-42-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2668-41-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/3076-49-0x0000000002450000-0x0000000002451000-memory.dmp
memory/3076-6-0x0000000002450000-0x0000000002451000-memory.dmp
memory/3076-47-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/4608-52-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-67-0x0000000000910000-0x00000000009B2000-memory.dmp
memory/4608-45-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-53-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-56-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-59-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-62-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-65-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-66-0x0000000000910000-0x00000000009B2000-memory.dmp
memory/4608-48-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-73-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-76-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-77-0x0000000000910000-0x00000000009B2000-memory.dmp
memory/4608-80-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-83-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-86-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-89-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-93-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/4608-96-0x0000000000400000-0x00000000005D5000-memory.dmp