Analysis

  • max time kernel
    152s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 13:00

General

  • Target

    a02641c0d7ab5100b5aef734b058d28eaa7dd71b3b6910186974cdd0a4a48f11.exe

  • Size

    100KB

  • MD5

    567d445e6753cc4835126248229800e2

  • SHA1

    0041b67cb7e0e57bf1da171719b286015d40f175

  • SHA256

    a02641c0d7ab5100b5aef734b058d28eaa7dd71b3b6910186974cdd0a4a48f11

  • SHA512

    4ae0590a4f45de3edb5b1bf29d51bcc766f3b564018843893e35f4ce71dbf6686b18298fb1f13928493c0897a9f7cffb615ad08486b1e669a2cfe217be6681cb

  • SSDEEP

    1536:Xzdh9Kp/zVYsOmvSw/VAUkqUTrVRcj+q4+TnNh4ymgzCLgyUmYbHlEaMWCDm3:XaYsBxejqUTr4FLNh4yD046m3

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 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 21 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a02641c0d7ab5100b5aef734b058d28eaa7dd71b3b6910186974cdd0a4a48f11.exe
    "C:\Users\Admin\AppData\Local\Temp\a02641c0d7ab5100b5aef734b058d28eaa7dd71b3b6910186974cdd0a4a48f11.exe"
    1⤵
    • 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:1300
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1336
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1252
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1152

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1300-54-0x0000000075C31000-0x0000000075C33000-memory.dmp

          Filesize

          8KB

        • memory/1300-55-0x0000000001E00000-0x0000000002E8E000-memory.dmp

          Filesize

          16.6MB

        • memory/1300-56-0x0000000000400000-0x0000000000416000-memory.dmp

          Filesize

          88KB

        • memory/1300-57-0x0000000001E00000-0x0000000002E8E000-memory.dmp

          Filesize

          16.6MB

        • memory/1300-58-0x0000000000260000-0x0000000000262000-memory.dmp

          Filesize

          8KB

        • memory/1300-59-0x00000000749A1000-0x00000000749A3000-memory.dmp

          Filesize

          8KB

        • memory/1300-60-0x0000000004ED0000-0x0000000004ED2000-memory.dmp

          Filesize

          8KB

        • memory/1300-61-0x0000000001E00000-0x0000000002E8E000-memory.dmp

          Filesize

          16.6MB

        • memory/1300-62-0x0000000000260000-0x0000000000262000-memory.dmp

          Filesize

          8KB

        • memory/1300-63-0x0000000004ED0000-0x0000000004ED2000-memory.dmp

          Filesize

          8KB