Analysis
- max time kernel
146s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
30/03/2024, 17:48
General
- Target aa73ee129497b2b8c0d2a7546dc8937e6787303e3eaf70640ec28445ecf1834e.exe
- Size 1.9MB
- Sample240330-wdvlaaba3v
- SHA256 aa73ee129497b2b8c0d2a7546dc8937e6787303e3eaf70640ec28445ecf1834e
Malware Config
Extracted
-
socks5systemz
-
http://aabtdqi.ru/search/?q=67e28dd83e5cf579400faa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c2ef9c933f
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\aa73ee129497b2b8c0d2a7546dc8937e6787303e3eaf70640ec28445ecf1834e.exe"C:\Users\Admin\AppData\Local\Temp\aa73ee129497b2b8c0d2a7546dc8937e6787303e3eaf70640ec28445ecf1834e.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-0B6K6.tmp\aa73ee129497b2b8c0d2a7546dc8937e6787303e3eaf70640ec28445ecf1834e.tmp"C:\Users\Admin\AppData\Local\Temp\is-0B6K6.tmp\aa73ee129497b2b8c0d2a7546dc8937e6787303e3eaf70640ec28445ecf1834e.tmp" /SL5="$60232,1625247,54272,C:\Users\Admin\AppData\Local\Temp\aa73ee129497b2b8c0d2a7546dc8937e6787303e3eaf70640ec28445ecf1834e.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
aa73ee129497b2b8c0d2a7546dc8937e6787303e3eaf70640ec28445ecf1834e.tmp
_iscrypt.dll
memory/656-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/656-50-0x0000000002300000-0x0000000002301000-memory.dmp
memory/656-7-0x0000000002300000-0x0000000002301000-memory.dmp
memory/2068-69-0x0000000002340000-0x00000000023E2000-memory.dmp
memory/2068-81-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-97-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-46-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-94-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-90-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-49-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-87-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-53-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-54-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-57-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-60-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-63-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-66-0x0000000002340000-0x00000000023E2000-memory.dmp
memory/2068-67-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-84-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-74-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-77-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2068-78-0x0000000002340000-0x00000000023E2000-memory.dmp
memory/2508-38-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2508-39-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2508-43-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/3220-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3220-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3220-47-0x0000000000400000-0x0000000000414000-memory.dmp