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Analysis

  • max time kernel
    176s
  • 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, 18:27

General

  • Target

    4691ba46713cfa162f9a963a633f3d9cc1b804a68a9fa0f129e64e8f11506a84.exe

  • Size

    96KB

  • MD5

    6d7f2b719e0dcc455597c8831429b188

  • SHA1

    9fe8e8ee6a2d14616a79c95dd003a8a228b69524

  • SHA256

    4691ba46713cfa162f9a963a633f3d9cc1b804a68a9fa0f129e64e8f11506a84

  • SHA512

    7dd75db6f9154ca1c5f6581deb8c2aaff6c85d1335694007b128a606db616d42cb9adbab0987fe8e4cd338c1cf681675fe8e6eb331e31116dbdc711176daebe7

  • SSDEEP

    1536:B7w8gIPkbqmgCaCIf5mbvshJ2RHWRzBuV9uJLOw28HnnqBYvfAdo4quE6cSdw7:B0+k7ap52AERHizBu3kvnqBcfCodx6Z

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 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 21 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:1256
      • C:\Users\Admin\AppData\Local\Temp\4691ba46713cfa162f9a963a633f3d9cc1b804a68a9fa0f129e64e8f11506a84.exe
        "C:\Users\Admin\AppData\Local\Temp\4691ba46713cfa162f9a963a633f3d9cc1b804a68a9fa0f129e64e8f11506a84.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:684
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1208
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1140

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/684-54-0x0000000075241000-0x0000000075243000-memory.dmp

          Filesize

          8KB

        • memory/684-55-0x0000000001D40000-0x0000000002DCE000-memory.dmp

          Filesize

          16.6MB

        • memory/684-56-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/684-57-0x0000000001D40000-0x0000000002DCE000-memory.dmp

          Filesize

          16.6MB

        • memory/684-58-0x0000000074871000-0x0000000074873000-memory.dmp

          Filesize

          8KB

        • memory/684-59-0x0000000000320000-0x0000000000322000-memory.dmp

          Filesize

          8KB

        • memory/684-60-0x0000000004370000-0x0000000004372000-memory.dmp

          Filesize

          8KB

        • memory/684-61-0x0000000001D40000-0x0000000002DCE000-memory.dmp

          Filesize

          16.6MB

        • memory/684-62-0x0000000000320000-0x0000000000322000-memory.dmp

          Filesize

          8KB

        • memory/684-63-0x0000000004370000-0x0000000004372000-memory.dmp

          Filesize

          8KB

        • memory/684-64-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB