Analysis
- max time kernel
148s - max time network
149s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
09/04/2024, 01:36
General
- Target f9827a2a48b356c781478142c39eb801.exe
- Size 4.0MB
- Sample240409-bz9bcaac74
- SHA256 208f0af12ef5b3bc47e552804e7cf255b56044b025c88ffc2f6bba4cd3576362
Malware Config
Extracted
-
socks5systemz
-
http://buxsnhu.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6588fd17c6eb95
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 5 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 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f9827a2a48b356c781478142c39eb801.exe"C:\Users\Admin\AppData\Local\Temp\f9827a2a48b356c781478142c39eb801.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-DU590.tmp\f9827a2a48b356c781478142c39eb801.tmp"C:\Users\Admin\AppData\Local\Temp\is-DU590.tmp\f9827a2a48b356c781478142c39eb801.tmp" /SL5="$8011E,3854568,54272,C:\Users\Admin\AppData\Local\Temp\f9827a2a48b356c781478142c39eb801.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe"C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe"C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
soundvolume.exe
_iscrypt.dll
_shfoldr.dll
f9827a2a48b356c781478142c39eb801.tmp
memory/1508-8-0x00000000001D0000-0x00000000001D1000-memory.dmp
memory/1508-42-0x0000000003410000-0x00000000036F0000-memory.dmp
memory/1508-57-0x00000000001D0000-0x00000000001D1000-memory.dmp
memory/1508-55-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2236-54-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2236-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2528-75-0x0000000002680000-0x0000000002722000-memory.dmp
memory/2528-84-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-53-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-104-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-101-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-56-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-97-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-60-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-63-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-64-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-67-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-70-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-73-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-74-0x0000000002680000-0x0000000002722000-memory.dmp
memory/2528-94-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-81-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-51-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-87-0x0000000002680000-0x0000000002722000-memory.dmp
memory/2528-88-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/2528-91-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/3028-44-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/3028-45-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/3028-46-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/3028-49-0x0000000000400000-0x00000000006E0000-memory.dmp