Analysis
- max time kernel
119s - max time network
124s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
19/05/2024, 13:43
General
- Target 2024-05-19_a6e1e52c6ba49a3fc97508c84e51a435_bkransomware.exe
- Size 525KB
- Sample240519-q1hmcaaf85
- SHA256 069bd683d48e239fea7f0cb0d3d5c1d42c253debdceb5da029fba31b9036ff69
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
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 12 IoCs
- UPX dump on OEP (original entry point) 13 IoCs
- UPX packed file 12 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 2 IoCs
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- System policy modification 1 TTPs 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-05-19_a6e1e52c6ba49a3fc97508c84e51a435_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-19_a6e1e52c6ba49a3fc97508c84e51a435_bkransomware.exe"1⤵
- 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 SetWindowsHookEx
- System policy modification
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
memory/2888-0-0x0000000000400000-0x0000000000489000-memory.dmp
memory/2888-9-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-1-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-4-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-13-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-22-0x0000000000400000-0x0000000000489000-memory.dmp
memory/2888-6-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-12-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-5-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-10-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-3-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-7-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-8-0x0000000001E40000-0x0000000002EFA000-memory.dmp
memory/2888-11-0x0000000001E40000-0x0000000002EFA000-memory.dmp