Analysis

  • max time kernel
    151s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 12:48

General

  • Target

    a2836938ccaf2e51a4977d596cfd56d3bf702754e83db98fadbec02c866dcaea.exe

  • Size

    3.2MB

  • MD5

    bac7653939d4b05299a8d9ca9e11178a

  • SHA1

    9d842ea11cab959747489de4d8c1e32637dd25ab

  • SHA256

    a2836938ccaf2e51a4977d596cfd56d3bf702754e83db98fadbec02c866dcaea

  • SHA512

    ce6056b3b60e421df15dfd79e20d50748364b5d04f8947cccd226da1e612241dfe372fb9effeb4f48fccdc44e2ca8ac6b97dbe9b9e68960bd6eedff3a651179b

  • SSDEEP

    49152:XPb00VBcOecqC2+dlGE8Fp2ZqcUPjcGVwpWOCy3ReHpa5tj4l:XPDB8cqC2/E8FpQUrc6oRYl

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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 7 IoCs
  • Checks for any installed AV software in registry 1 TTPs 4 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.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1244
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1352
        • C:\Users\Admin\AppData\Local\Temp\a2836938ccaf2e51a4977d596cfd56d3bf702754e83db98fadbec02c866dcaea.exe
          "C:\Users\Admin\AppData\Local\Temp\a2836938ccaf2e51a4977d596cfd56d3bf702754e83db98fadbec02c866dcaea.exe"
          2⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Windows security modification
          • Checks for any installed AV software in registry
          • Checks whether UAC is enabled
          • Enumerates connected drives
          • Drops autorun.inf file
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1160
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1328
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1076

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1160-54-0x0000000000400000-0x000000000073A000-memory.dmp

            Filesize

            3.2MB

          • memory/1160-55-0x0000000075A91000-0x0000000075A93000-memory.dmp

            Filesize

            8KB

          • memory/1160-56-0x0000000001FD0000-0x000000000305E000-memory.dmp

            Filesize

            16.6MB

          • memory/1160-57-0x0000000001FD0000-0x000000000305E000-memory.dmp

            Filesize

            16.6MB

          • memory/1160-58-0x0000000000880000-0x0000000000882000-memory.dmp

            Filesize

            8KB

          • memory/1160-59-0x0000000001FD0000-0x000000000305E000-memory.dmp

            Filesize

            16.6MB

          • memory/1160-60-0x0000000000880000-0x0000000000882000-memory.dmp

            Filesize

            8KB

          • memory/1160-61-0x0000000074061000-0x0000000074063000-memory.dmp

            Filesize

            8KB

          • memory/1160-62-0x0000000000400000-0x000000000073A000-memory.dmp

            Filesize

            3.2MB