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Analysis

  • max time kernel
    150s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    28/10/2022, 19:30

General

  • Target

    a5e3bcfb09fdf4d05dbdc72675a31e24e7fcee164249fce713485383cdfb0417.exe

  • Size

    100KB

  • MD5

    0010ba5c060f495bd834c678ac57a780

  • SHA1

    4e53af87be3825c7ccc1bce834142c5c536da958

  • SHA256

    a5e3bcfb09fdf4d05dbdc72675a31e24e7fcee164249fce713485383cdfb0417

  • SHA512

    8b9e393d47e89d58379090c82ba176af7a13009e42cb17c6b222fc61f26964e78a07ee5f6075d4d4e666348b3af6474e2681265ad4b2ec1ed5e60a461694dcc6

  • SSDEEP

    3072:o5WKDPpWprK7Mrh8GGPDvcfUl+mQ4gvqb:o5WGPpgAMlFGPAWQ4gvqb

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

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1232
    • C:\Windows\system32\taskhost.exe
      "taskhost.exe"
      1⤵
        PID:1132
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1304
          • C:\Users\Admin\AppData\Local\Temp\a5e3bcfb09fdf4d05dbdc72675a31e24e7fcee164249fce713485383cdfb0417.exe
            "C:\Users\Admin\AppData\Local\Temp\a5e3bcfb09fdf4d05dbdc72675a31e24e7fcee164249fce713485383cdfb0417.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:996

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/996-54-0x00000000760E1000-0x00000000760E3000-memory.dmp

          Filesize

          8KB

        • memory/996-55-0x0000000001D60000-0x0000000002DEE000-memory.dmp

          Filesize

          16.6MB

        • memory/996-56-0x0000000000400000-0x0000000000416000-memory.dmp

          Filesize

          88KB

        • memory/996-58-0x0000000001D60000-0x0000000002DEE000-memory.dmp

          Filesize

          16.6MB

        • memory/996-57-0x00000000746D1000-0x00000000746D3000-memory.dmp

          Filesize

          8KB

        • memory/996-59-0x00000000003E0000-0x00000000003E2000-memory.dmp

          Filesize

          8KB

        • memory/996-60-0x0000000004150000-0x0000000004152000-memory.dmp

          Filesize

          8KB

        • memory/996-61-0x0000000001D60000-0x0000000002DEE000-memory.dmp

          Filesize

          16.6MB

        • memory/996-62-0x00000000003E0000-0x00000000003E2000-memory.dmp

          Filesize

          8KB

        • memory/996-63-0x0000000004150000-0x0000000004152000-memory.dmp

          Filesize

          8KB