Analysis
- max time kernel
292s - max time network
299s - platform
windows7_x64 - resource
win7-20240508-en - resource tags
- submitted
17/06/2024, 05:02
General
- Target 279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.exe
- Size 4.8MB
- Sample240617-fpclvazbpn
- SHA256 279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e
Malware Config
Extracted
-
socks5systemz
-
bputcyo.com
-
gnuemej.com
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 5 IoCs
- Unexpected DNS network traffic destination 13 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\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.exe"C:\Users\Admin\AppData\Local\Temp\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-25OPU.tmp\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.tmp"C:\Users\Admin\AppData\Local\Temp\is-25OPU.tmp\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.tmp" /SL5="$30142,4764546,54272,C:\Users\Admin\AppData\Local\Temp\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
m4atomp3freeconverter.exe
279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.tmp
_iscrypt.dll
_shfoldr.dll
memory/2196-74-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2196-79-0x00000000035C0000-0x00000000038AD000-memory.dmp
memory/2196-17-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2196-64-0x00000000035C0000-0x00000000038AD000-memory.dmp
memory/2540-104-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-92-0x0000000002670000-0x0000000002712000-memory.dmp
memory/2540-134-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-71-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-131-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-128-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-75-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-78-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-125-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-82-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-85-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-88-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-91-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-122-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-98-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-101-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-119-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-107-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-110-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-113-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2540-116-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2604-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2604-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2604-73-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2760-66-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2760-65-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/2760-69-0x0000000000400000-0x00000000006ED000-memory.dmp