Analysis
- max time kernel
292s - max time network
300s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
30/05/2024, 23:05
General
- Target 6f65c16dd87e7ce92440e485f1dd593a3020e31f130f024457748c8787c6678b.exe
- Size 5.6MB
- Sample240530-22vh3sec33
- SHA256 6f65c16dd87e7ce92440e485f1dd593a3020e31f130f024457748c8787c6678b
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 IoCs
- Unexpected DNS network traffic destination 2 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\6f65c16dd87e7ce92440e485f1dd593a3020e31f130f024457748c8787c6678b.exe"C:\Users\Admin\AppData\Local\Temp\6f65c16dd87e7ce92440e485f1dd593a3020e31f130f024457748c8787c6678b.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-NP5H5.tmp\6f65c16dd87e7ce92440e485f1dd593a3020e31f130f024457748c8787c6678b.tmp"C:\Users\Admin\AppData\Local\Temp\is-NP5H5.tmp\6f65c16dd87e7ce92440e485f1dd593a3020e31f130f024457748c8787c6678b.tmp" /SL5="$2101DE,5565792,54272,C:\Users\Admin\AppData\Local\Temp\6f65c16dd87e7ce92440e485f1dd593a3020e31f130f024457748c8787c6678b.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe"C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe"C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe" -s3⤵
- Executes dropped EXE
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
fiaudioconverter.exe
6f65c16dd87e7ce92440e485f1dd593a3020e31f130f024457748c8787c6678b.tmp
_iscrypt.dll
_isdecmp.dll
memory/804-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/804-73-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1020-72-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1020-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1020-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2460-111-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-99-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-133-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-74-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-77-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-80-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-83-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-86-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-87-0x00000000023B0000-0x0000000002452000-memory.dmp
memory/2460-91-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-96-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-130-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-102-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-105-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-108-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-127-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-114-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-117-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-120-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/2460-123-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/3968-65-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/3968-69-0x0000000000400000-0x00000000006EC000-memory.dmp
memory/3968-66-0x0000000000400000-0x00000000006EC000-memory.dmp