Analysis

  • max time kernel
    149s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 18:26

General

  • Target

    4d6f3b6cd56b822537156590075a069923918e36603fd4d4e1774588f260c172.exe

  • Size

    100KB

  • MD5

    6294d2bffbbfdc96b8d24df15728b069

  • SHA1

    48b5f3f2d1c07770a5c845c4bef72b4bea42236d

  • SHA256

    4d6f3b6cd56b822537156590075a069923918e36603fd4d4e1774588f260c172

  • SHA512

    5bef01f2c66ce8a83530692171af1889701f8863358180f152b5d1c893f4c278f601f60ef19f4c722ab7aa772027b7b934b4b1c9422ab27c0eb505d6c7462939

  • SSDEEP

    1536:AezTMiJTIYAkkMXi+bsuKu4yZLcEA0+INY7seGxm8+TbMzW5EB16Z04GI6rg:AETMiJT6kpi+bsu56d9IN1eG6BGAig

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
  • UPX packed file 2 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 5 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 19 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1228
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1360
        • C:\Users\Admin\AppData\Local\Temp\4d6f3b6cd56b822537156590075a069923918e36603fd4d4e1774588f260c172.exe
          "C:\Users\Admin\AppData\Local\Temp\4d6f3b6cd56b822537156590075a069923918e36603fd4d4e1774588f260c172.exe"
          2⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • 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:1352
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1308

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1352-54-0x0000000075B51000-0x0000000075B53000-memory.dmp

          Filesize

          8KB

        • memory/1352-55-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1352-56-0x0000000001DB0000-0x0000000002E3E000-memory.dmp

          Filesize

          16.6MB

        • memory/1352-57-0x00000000740F1000-0x00000000740F3000-memory.dmp

          Filesize

          8KB

        • memory/1352-58-0x0000000000470000-0x0000000000472000-memory.dmp

          Filesize

          8KB

        • memory/1352-59-0x0000000001DB0000-0x0000000002E3E000-memory.dmp

          Filesize

          16.6MB

        • memory/1352-60-0x0000000000470000-0x0000000000472000-memory.dmp

          Filesize

          8KB

        • memory/1352-61-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB