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Analysis

  • max time kernel
    181s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20/10/2022, 11:46

General

  • Target

    687aa5201aa1eca07781480db977400bf5db13ce09ba2bc3088acfdc3848623c.exe

  • Size

    100KB

  • MD5

    7b65fc8620b797756b7e99b852ba0b9c

  • SHA1

    7d6294e5805cd24b884de8e06875f1fdb3adc30c

  • SHA256

    687aa5201aa1eca07781480db977400bf5db13ce09ba2bc3088acfdc3848623c

  • SHA512

    41bb619ada97c547e9683e7eecfcbf68cc84ec6fddb7700870b05a288616701911035d7681171a8c53cbb717093eb1bddb95d280174deb9fef0eef5a57caddc0

  • SSDEEP

    1536:mCW589a4Iju5HufBq8I+N1KXN1OFbcNcLd9GRfidRWPQHmks6cEtvcW:a589a4DEBq6N1KNABccjG5idOQVs

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

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1128
    • C:\Users\Admin\AppData\Local\Temp\687aa5201aa1eca07781480db977400bf5db13ce09ba2bc3088acfdc3848623c.exe
      "C:\Users\Admin\AppData\Local\Temp\687aa5201aa1eca07781480db977400bf5db13ce09ba2bc3088acfdc3848623c.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:1144
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1276
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1244

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1144-54-0x0000000074C91000-0x0000000074C93000-memory.dmp

          Filesize

          8KB

        • memory/1144-55-0x0000000001DB0000-0x0000000002E3E000-memory.dmp

          Filesize

          16.6MB

        • memory/1144-56-0x0000000074201000-0x0000000074203000-memory.dmp

          Filesize

          8KB

        • memory/1144-57-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/1144-58-0x0000000001DB0000-0x0000000002E3E000-memory.dmp

          Filesize

          16.6MB

        • memory/1144-59-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/1144-60-0x0000000004370000-0x0000000004372000-memory.dmp

          Filesize

          8KB

        • memory/1144-61-0x0000000001DB0000-0x0000000002E3E000-memory.dmp

          Filesize

          16.6MB

        • memory/1144-62-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/1144-63-0x0000000004370000-0x0000000004372000-memory.dmp

          Filesize

          8KB