Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    18-05-2024 21:07

General

  • Target

    2024-05-18_633093bdaa92743e25b6dc1d5df47d45_bkransomware.exe

  • Size

    516KB

  • MD5

    633093bdaa92743e25b6dc1d5df47d45

  • SHA1

    373731986ec7fa0934df1a45062e9d44177f440d

  • SHA256

    0dc12fbb0282f1fc64239d64c0b37af0e0f953083130bd909d2b9b57575d5e6e

  • SHA512

    23e59cdf9991935d78e5d5bdc58e3a9d41032384c836a1eae63070aedf1e03edd68e91722bd059bbe9940c36d48c462880d0825a108f38fac9579fb081350377

  • SSDEEP

    6144:GoyZmTAsfJFakxaLjcMkc0Cax1PDGp6bYA0w601+dNT9/0626ASkVOAFplmO6bB:GoyIJsMPrPSp6bYboEdNYmOa

Malware Config

Extracted

Family

sality

C2

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 11 IoCs
  • UPX dump on OEP (original entry point) 12 IoCs
  • UPX packed file 11 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\2024-05-18_633093bdaa92743e25b6dc1d5df47d45_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-18_633093bdaa92743e25b6dc1d5df47d45_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
    PID:1616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1616-0-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1616-2-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-6-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-13-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-4-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-5-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-7-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-9-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-11-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-22-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1616-12-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-10-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB

  • memory/1616-8-0x0000000001F40000-0x0000000002FFA000-memory.dmp

    Filesize

    16.7MB