Analysis
-
max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
-
submitted
16-05-2024 18:45
General
-
Target
2024-05-16_147ec8a869926242afc12ea4140d5ee4_bkransomware.exe
-
Size
525KB
-
MD5
147ec8a869926242afc12ea4140d5ee4
-
SHA1
9168ee8f0b9cfa8f370a6c195a59773b0d453113
-
SHA256
38f58ead28a8b5aa199474e8a0c17b95b13cb3f2dbbd49870ca4bfe287946814
-
SHA512
b0d01e6f0eccb514ec12b510fa4fab6c4975b7209ab253f6b46c9a4f63ff92add11253290120fc969489cb7094da1288a0f72b3e31378501d340c70bee5ec15d
-
SSDEEP
6144:dYrIOXsqmWzJrdc6GJRQUfGUA9PRWLiFSbE56FORFQMEL+U:/2lWRPfhA9PRWg9A2
Malware Config
Extracted
sality
http://89.119.67.154/testo5/
http://kukutrustnet777.info/home.gif
http://kukutrustnet888.info/home.gif
http://kukutrustnet987.info/home.gif
http://www.klkjwre9fqwieluoi.info/
http://kukutrustnet777888.info/
Signatures
-
Modifies firewall policy service 2 TTPs 3 IoCs
-
Sality
Sality is backdoor written in C++, first discovered in 2003.
-
UAC bypass 3 TTPs 1 IoCs
-
Windows security bypass 2 TTPs 6 IoCs
-
Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 10 IoCs
-
UPX dump on OEP (original entry point) 12 IoCs
-
UPX packed file 10 IoCs
Detects executables packed with UPX/modified UPX open source packer.
-
Windows security modification 2 TTPs 7 IoCs
-
Checks whether UAC is enabled 1 TTPs 1 IoCs
-
Drops file in Windows directory 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 1 IoCs
-
Suspicious use of AdjustPrivilegeToken 20 IoCs
-
Suspicious use of SetWindowsHookEx 3 IoCs
-
Suspicious use of WriteProcessMemory 4 IoCs
-
System policy modification 1 TTPs 1 IoCs
Processes
-
C:\Windows\system32\taskhost.exe"taskhost.exe"1⤵
-
C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
-
C:\Users\Admin\AppData\Local\Temp\2024-05-16_147ec8a869926242afc12ea4140d5ee4_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-16_147ec8a869926242afc12ea4140d5ee4_bkransomware.exe"2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
8KB
-
Filesize
16.6MB
-
Filesize
16.6MB
-
Filesize
16.6MB
-
Filesize
548KB
-
Filesize
4KB
-
Filesize
16.6MB
-
Filesize
16.6MB
-
Filesize
4KB
-
Filesize
16.6MB
-
Filesize
16.6MB
-
Filesize
8KB
-
Filesize
16.6MB
-
Filesize
548KB
-
Filesize
16.6MB
-
Filesize
16.6MB