Analysis
-
max time kernel
143s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
25-06-2024 06:16
Static task
static1
Behavioral task
behavioral1
Sample
304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe
Resource
win11-20240611-en
General
-
Target
304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe
-
Size
4.9MB
-
MD5
0228b790aed9d54be4897f59c84ebd82
-
SHA1
d7fe653017abd09777c375eca3912bf53f4c1798
-
SHA256
304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2
-
SHA512
8be0bd1501f2b678a47326372bf27cfa29d5c6dc60ac458de90be9d918c8ce0e1f859e1af2d22323001610466b0d6881c9a82554c34b512be307344affa17088
-
SSDEEP
98304:mBn/8zu14Y9ZQyfsULzKZLYdTX6Fhv1n18y:Y1X9uyUBLYxXIniy
Malware Config
Extracted
socks5systemz
ckfleez.net
http://ckfleez.net/search/?q=67e28dd8685ff37d4306f81a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff613c9e9979c3e
http://ckfleez.net/search/?q=67e28dd8685ff37d4306f81a7c27d78406abdd88be4b12eab517aa5c96bd86eb968f4e96148ab2865b77f80ebad9c60f7cb63037ed2ab423a4374383ba915d911ec07bb606a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1e697933dcf6993
Signatures
-
Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/4432-86-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz behavioral1/memory/4432-109-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz behavioral1/memory/4432-110-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
-
Executes dropped EXE 3 IoCs
Processes:
304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmpmp3ripfreeedition.exemp3ripfreeedition.exepid process 2516 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp 3180 mp3ripfreeedition.exe 4432 mp3ripfreeedition.exe -
Loads dropped DLL 1 IoCs
Processes:
304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmppid process 2516 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 141.98.234.31 -
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
Processes:
304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmppid process 2516 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmpdescription pid process target process PID 3412 wrote to memory of 2516 3412 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp PID 3412 wrote to memory of 2516 3412 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp PID 3412 wrote to memory of 2516 3412 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp PID 2516 wrote to memory of 3180 2516 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp mp3ripfreeedition.exe PID 2516 wrote to memory of 3180 2516 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp mp3ripfreeedition.exe PID 2516 wrote to memory of 3180 2516 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp mp3ripfreeedition.exe PID 2516 wrote to memory of 4432 2516 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp mp3ripfreeedition.exe PID 2516 wrote to memory of 4432 2516 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp mp3ripfreeedition.exe PID 2516 wrote to memory of 4432 2516 304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp mp3ripfreeedition.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe"C:\Users\Admin\AppData\Local\Temp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3412 -
C:\Users\Admin\AppData\Local\Temp\is-HQT44.tmp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp"C:\Users\Admin\AppData\Local\Temp\is-HQT44.tmp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp" /SL5="$A0046,4920826,54272,C:\Users\Admin\AppData\Local\Temp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2516 -
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -i3⤵
- Executes dropped EXE
PID:3180
-
-
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -s3⤵
- Executes dropped EXE
PID:4432
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2.9MB
MD5d1aa58659cf742b52c64e436fd44c8b9
SHA1275397aa35f350b6ca954d8f6d77b1c8c67108e2
SHA2565e6e8479ca647786df6bf2efdbcf3d25fe4147a1699ab91984dc071b4e0458f2
SHA512ef241bf010e54be0195b07010f9581977dbad0a1a055c9c7b4cb921183f4df79cadc4ef0a8b3aa0df8a101cc7ad30bf79327e735b47734132f2d81053166dd18
-
C:\Users\Admin\AppData\Local\Temp\is-HQT44.tmp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp
Filesize680KB
MD5c887103e50c44eeb44492217bfaac65a
SHA18031cb0829e7709b8dd0dbd796572d35ba47b4d6
SHA2568d4240309d8ea06c2b3bf6808c83f014c6bee9c188019251c9edf31699f0488f
SHA5124a4bce3f0686b8c0a8cf4d5418e60dfd64d63bf2eee84a569b933d6c40980ea365cbc24df9190cb13ff04cc4bfd2bd64622ad990a435a1010c777d1d6a4f35d7
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63