Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    20/10/2022, 03:00

General

  • Target

    0aa1943f8b95c5cb44bac6ca2f4a3a12d805cb96c5d9debc70d6dd534cb2d0d0.exe

  • Size

    643KB

  • MD5

    8039b4cdf152123c603b7803aae59f30

  • SHA1

    6f8389873918390b7789baee6f2fbd1a85b43b00

  • SHA256

    0aa1943f8b95c5cb44bac6ca2f4a3a12d805cb96c5d9debc70d6dd534cb2d0d0

  • SHA512

    084ac7a0ce3d096fba9b1c531635a9de4443696c0c5407b0588c2af6d6e251bf10c86bdb0f9a960f290760367cb2102a6aaaf687506e483a595d7771e3c60585

  • SSDEEP

    12288:hRXBLdl0sNFxMOTAcfLZhJCWLpf1f7l5VfSwJNcsF0HxFjv1Ddm2QrVApsNZ6E:hRxLjNNFxVT/fLZhJCopf1f7l/SQNco9

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.

  • Loads dropped DLL 2 IoCs
  • 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\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1224
      • C:\Users\Admin\AppData\Local\Temp\0aa1943f8b95c5cb44bac6ca2f4a3a12d805cb96c5d9debc70d6dd534cb2d0d0.exe
        "C:\Users\Admin\AppData\Local\Temp\0aa1943f8b95c5cb44bac6ca2f4a3a12d805cb96c5d9debc70d6dd534cb2d0d0.exe"
        2⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • Loads dropped DLL
        • 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:1720
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1188
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1128

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • \Users\Admin\AppData\Local\Temp\nsd2898.tmp\InstallOptions.dll

                Filesize

                14KB

                MD5

                0dc0cc7a6d9db685bf05a7e5f3ea4781

                SHA1

                5d8b6268eeec9d8d904bc9d988a4b588b392213f

                SHA256

                8e287326f1cdd5ef2dcd7a72537c68cbe4299ceb1f820707c5820f3aa6d8206c

                SHA512

                814dd17ebb434f4a3356f716c783ab7f569f9ee34ce5274fa50392526925f044798f8006198ac7afe3d1c2ca83a2ca8c472ca53fec5f12bbfbbe0707abacd6b0

              • \Users\Admin\AppData\Local\Temp\nsd2898.tmp\System.dll

                Filesize

                11KB

                MD5

                00a0194c20ee912257df53bfe258ee4a

                SHA1

                d7b4e319bc5119024690dc8230b9cc919b1b86b2

                SHA256

                dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

                SHA512

                3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

              • memory/1720-54-0x00000000765B1000-0x00000000765B3000-memory.dmp

                Filesize

                8KB

              • memory/1720-55-0x0000000001E90000-0x0000000002F1E000-memory.dmp

                Filesize

                16.6MB

              • memory/1720-56-0x0000000000400000-0x000000000044E000-memory.dmp

                Filesize

                312KB

              • memory/1720-58-0x0000000001E90000-0x0000000002F1E000-memory.dmp

                Filesize

                16.6MB

              • memory/1720-60-0x0000000000380000-0x0000000000382000-memory.dmp

                Filesize

                8KB

              • memory/1720-61-0x00000000048B0000-0x00000000054FA000-memory.dmp

                Filesize

                12.3MB

              • memory/1720-62-0x0000000001E90000-0x0000000002F1E000-memory.dmp

                Filesize

                16.6MB

              • memory/1720-63-0x0000000000380000-0x0000000000382000-memory.dmp

                Filesize

                8KB

              • memory/1720-64-0x00000000048B0000-0x00000000054FA000-memory.dmp

                Filesize

                12.3MB

              • memory/1720-65-0x0000000000400000-0x000000000044E000-memory.dmp

                Filesize

                312KB