Analysis
- max time kernel
142s - max time network
126s - platform
windows11-21h2_x64 - resource
win11-20240611-en - resource tags
- submitted
12/06/2024, 04:23
General
- Target f7fde436ceceabfaa6bfda5572030e730bf0912c215664af9b9fda62e5e08b6c.exe
- Size 4.9MB
- Sample240612-ez7pas1bmb
- SHA256 f7fde436ceceabfaa6bfda5572030e730bf0912c215664af9b9fda62e5e08b6c
Malware Config
Extracted
-
socks5systemz
-
ebrdykv.ua
-
http://ebrdykv.ua/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff710c6e997933a
Signatures
- Detect Socks5Systemz Payload 1 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 FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f7fde436ceceabfaa6bfda5572030e730bf0912c215664af9b9fda62e5e08b6c.exe"C:\Users\Admin\AppData\Local\Temp\f7fde436ceceabfaa6bfda5572030e730bf0912c215664af9b9fda62e5e08b6c.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-97PUE.tmp\f7fde436ceceabfaa6bfda5572030e730bf0912c215664af9b9fda62e5e08b6c.tmp"C:\Users\Admin\AppData\Local\Temp\is-97PUE.tmp\f7fde436ceceabfaa6bfda5572030e730bf0912c215664af9b9fda62e5e08b6c.tmp" /SL5="$40204,4935675,54272,C:\Users\Admin\AppData\Local\Temp\f7fde436ceceabfaa6bfda5572030e730bf0912c215664af9b9fda62e5e08b6c.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
freeaudioconverter.exe
_iscrypt.dll
f7fde436ceceabfaa6bfda5572030e730bf0912c215664af9b9fda62e5e08b6c.tmp
memory/1984-71-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1984-10-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2308-60-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2308-59-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2308-63-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2308-65-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-72-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-88-0x0000000000A20000-0x0000000000AC2000-memory.dmp
memory/3520-68-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-118-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-115-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-111-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-75-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-76-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-79-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-82-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-85-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-69-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-90-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-96-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-99-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-102-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-105-0x0000000000400000-0x000000000072D000-memory.dmp
memory/3520-108-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4888-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4888-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4888-70-0x0000000000400000-0x0000000000414000-memory.dmp