Analysis
- max time kernel
292s - max time network
286s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
27/06/2024, 22:33
General
- Target 0c52f90830cb918ef112f9aa79d7737871d73785f207c35df19905bc91f91b8b.exe
- Size 4.5MB
- Sample240627-2gj7lsxejp
- SHA256 0c52f90830cb918ef112f9aa79d7737871d73785f207c35df19905bc91f91b8b
Malware Config
Extracted
-
socks5systemz
-
ckikrxb.net
-
http://ckikrxb.net/search/?q=67e28dd86d5ff028450dff177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff614c2e8929b3d
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\0c52f90830cb918ef112f9aa79d7737871d73785f207c35df19905bc91f91b8b.exe"C:\Users\Admin\AppData\Local\Temp\0c52f90830cb918ef112f9aa79d7737871d73785f207c35df19905bc91f91b8b.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-IQ8N8.tmp\0c52f90830cb918ef112f9aa79d7737871d73785f207c35df19905bc91f91b8b.tmp"C:\Users\Admin\AppData\Local\Temp\is-IQ8N8.tmp\0c52f90830cb918ef112f9aa79d7737871d73785f207c35df19905bc91f91b8b.tmp" /SL5="$70220,4470656,54272,C:\Users\Admin\AppData\Local\Temp\0c52f90830cb918ef112f9aa79d7737871d73785f207c35df19905bc91f91b8b.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
0c52f90830cb918ef112f9aa79d7737871d73785f207c35df19905bc91f91b8b.tmp
_iscrypt.dll
memory/1300-107-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-110-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-129-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-126-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-123-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-120-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-66-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-117-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-113-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-70-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-73-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-76-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-79-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-82-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-92-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-101-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-83-0x0000000002520000-0x00000000025C2000-memory.dmp
memory/1300-95-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-98-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-87-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/1300-104-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/2516-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2516-69-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3816-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3816-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3816-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4684-64-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/4684-60-0x0000000000400000-0x00000000006AD000-memory.dmp
memory/4684-59-0x0000000000400000-0x00000000006AD000-memory.dmp