Analysis
- max time kernel
143s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
14/06/2024, 01:41
General
- Target 9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.exe
- Size 4.8MB
- Sample240614-b4actazgpe
- SHA256 9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8
Malware Config
Extracted
-
socks5systemz
-
bobuefb.com
-
http://bobuefb.com/search/?q=67e28dd83e0bfb2e455aa5187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff712c2e6969f39
-
http://bobuefb.com/search/?q=67e28dd83e0bfb2e455aa5187c27d78406abdd88be4b12eab517aa5c96bd86ec94814f845a8bbc896c58e713bc90c91f36b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9939c46c9314
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Detects executables packed with VMProtect. 19 IoCs
- 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\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.exe"C:\Users\Admin\AppData\Local\Temp\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-N0BT9.tmp\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.tmp"C:\Users\Admin\AppData\Local\Temp\is-N0BT9.tmp\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.tmp" /SL5="$E01C2,4767411,54272,C:\Users\Admin\AppData\Local\Temp\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
audioconverter32.exe
_iscrypt.dll
9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.tmp
memory/892-71-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/892-12-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1664-101-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-76-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-111-0x0000000000900000-0x00000000009A2000-memory.dmp
memory/1664-110-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-107-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-69-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-68-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-104-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-119-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-72-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-75-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-112-0x0000000000900000-0x00000000009A2000-memory.dmp
memory/1664-79-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-82-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-85-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-88-0x0000000000900000-0x00000000009A2000-memory.dmp
memory/1664-92-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-95-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-98-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1664-116-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1704-59-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1704-65-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1704-62-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/1704-60-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/3140-70-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3140-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3140-2-0x0000000000401000-0x000000000040B000-memory.dmp