Analysis
- max time kernel
147s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
22/06/2024, 23:04
General
- Target bf80d3031b561971fe3a634973460b239228943070037b3f5ed48fc428a29f2f.exe
- Size 4.5MB
- Sample240622-22laeayfla
- SHA256 bf80d3031b561971fe3a634973460b239228943070037b3f5ed48fc428a29f2f
Malware Config
Extracted
-
socks5systemz
-
bxkegdi.com
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 3 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\bf80d3031b561971fe3a634973460b239228943070037b3f5ed48fc428a29f2f.exe"C:\Users\Admin\AppData\Local\Temp\bf80d3031b561971fe3a634973460b239228943070037b3f5ed48fc428a29f2f.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-2J4EV.tmp\bf80d3031b561971fe3a634973460b239228943070037b3f5ed48fc428a29f2f.tmp"C:\Users\Admin\AppData\Local\Temp\is-2J4EV.tmp\bf80d3031b561971fe3a634973460b239228943070037b3f5ed48fc428a29f2f.tmp" /SL5="$40218,4446829,54272,C:\Users\Admin\AppData\Local\Temp\bf80d3031b561971fe3a634973460b239228943070037b3f5ed48fc428a29f2f.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Audio Extractor\freeaudioextractor32.exe"C:\Users\Admin\AppData\Local\Free Audio Extractor\freeaudioextractor32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Audio Extractor\freeaudioextractor32.exe"C:\Users\Admin\AppData\Local\Free Audio Extractor\freeaudioextractor32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
freeaudioextractor32.exe
bf80d3031b561971fe3a634973460b239228943070037b3f5ed48fc428a29f2f.tmp
_iscrypt.dll
memory/3704-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3704-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3764-97-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-103-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-115-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-112-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-109-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-68-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-106-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-100-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-71-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-74-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-77-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-80-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-83-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-84-0x00000000024C0000-0x0000000002562000-memory.dmp
memory/3764-89-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/3764-94-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/4288-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4288-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4288-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4316-59-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/4316-64-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/4316-65-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4316-60-0x0000000000400000-0x00000000006AD000-memory.dmp