Analysis

  • max time kernel
    148s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2022, 18:35

General

  • Target

    0531d84b9737d8d8cee1019f55a9a1cf48095c7c9f35bd6b56fd1874539511a6.exe

  • Size

    100KB

  • MD5

    0111fa5311946328596da5b8b432ea71

  • SHA1

    531d3d29da7002c44b9d8df828eba583b973a2c9

  • SHA256

    0531d84b9737d8d8cee1019f55a9a1cf48095c7c9f35bd6b56fd1874539511a6

  • SHA512

    573b1d93db1e51326ce85be6678cfb217db42577287013b95afb6f050abd80bf8c7952584efebe938a4f6c2d9d915e6f77eb62d008d4f9039de0f9dbfa932fca

  • SSDEEP

    3072:C+2rUY5CdGrqyB9v07X4+jgPeh8+n8fcdrK:OnCdoLv0L4+u+n8ferK

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

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
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • UPX packed file 3 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
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1284
      • C:\Users\Admin\AppData\Local\Temp\0531d84b9737d8d8cee1019f55a9a1cf48095c7c9f35bd6b56fd1874539511a6.exe
        "C:\Users\Admin\AppData\Local\Temp\0531d84b9737d8d8cee1019f55a9a1cf48095c7c9f35bd6b56fd1874539511a6.exe"
        2⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Windows security modification
        • Checks whether UAC is enabled
        • Enumerates connected drives
        • Drops autorun.inf file
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:2000
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1232
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1160

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2000-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

          Filesize

          8KB

        • memory/2000-55-0x0000000001E00000-0x0000000002E8E000-memory.dmp

          Filesize

          16.6MB

        • memory/2000-56-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB

        • memory/2000-57-0x0000000001E00000-0x0000000002E8E000-memory.dmp

          Filesize

          16.6MB

        • memory/2000-58-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/2000-59-0x0000000074041000-0x0000000074043000-memory.dmp

          Filesize

          8KB

        • memory/2000-60-0x00000000046F0000-0x00000000046F2000-memory.dmp

          Filesize

          8KB

        • memory/2000-61-0x0000000001E00000-0x0000000002E8E000-memory.dmp

          Filesize

          16.6MB

        • memory/2000-62-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/2000-63-0x00000000046F0000-0x00000000046F2000-memory.dmp

          Filesize

          8KB