Analysis

  • max time kernel
    151s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    06/11/2022, 19:20

General

  • Target

    0683c323ea22a6268a6efe58f4fdf50873f4e3ee9eed266fb96687b516feed89.exe

  • Size

    249KB

  • MD5

    0cdfb9583eb10a9414b72e426bc48633

  • SHA1

    292a14bd146f499e82897073e25deef896e42929

  • SHA256

    0683c323ea22a6268a6efe58f4fdf50873f4e3ee9eed266fb96687b516feed89

  • SHA512

    ef4504169126709f8929dc497037491d03a99bffef21a45cc4f666af946859cf1e73c94a1c27c902c458232c7209d327f7906a66c3ac9b9830b0100ddc735544

  • SSDEEP

    6144:UNUEUNPA3Skv5ZcfRG+eC+DCtLhXK68udbUJ4xZA6:XPAn/yROC+etLhXqEbUJo1

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 6 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 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.

  • NSIS installer 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1280
      • C:\Users\Admin\AppData\Local\Temp\0683c323ea22a6268a6efe58f4fdf50873f4e3ee9eed266fb96687b516feed89.exe
        "C:\Users\Admin\AppData\Local\Temp\0683c323ea22a6268a6efe58f4fdf50873f4e3ee9eed266fb96687b516feed89.exe"
        2⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • Loads dropped DLL
        • Windows security modification
        • Checks whether UAC is enabled
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:852
        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
          "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
          3⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Executes dropped EXE
          • Deletes itself
          • Windows security modification
          • Checks whether UAC is enabled
          • Enumerates connected drives
          • Drops autorun.inf file
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1492
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1240
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1128

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\006C36AB_Rar\0683c323ea22a6268a6efe58f4fdf50873f4e3ee9eed266fb96687b516feed89.exe

          Filesize

          177KB

          MD5

          dbfd4603cf1d81752b83eb564c565c3e

          SHA1

          5a16c908929956cfa51b56dd73eedcd2100a589c

          SHA256

          a0bbf2aa9fec8b6e27305fbb6eb5a5934bc2bbcf1cbaf6271b2a9826874ac417

          SHA512

          c53a4670ee8ed5214b4dae762b044c14018c0034b75d74862260a8354fcd3006088712fb7af325aa38bdb48e26cc9507a3c617996b0f4a09209ed25f482fd000

        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          249KB

          MD5

          0cdfb9583eb10a9414b72e426bc48633

          SHA1

          292a14bd146f499e82897073e25deef896e42929

          SHA256

          0683c323ea22a6268a6efe58f4fdf50873f4e3ee9eed266fb96687b516feed89

          SHA512

          ef4504169126709f8929dc497037491d03a99bffef21a45cc4f666af946859cf1e73c94a1c27c902c458232c7209d327f7906a66c3ac9b9830b0100ddc735544

        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          249KB

          MD5

          0cdfb9583eb10a9414b72e426bc48633

          SHA1

          292a14bd146f499e82897073e25deef896e42929

          SHA256

          0683c323ea22a6268a6efe58f4fdf50873f4e3ee9eed266fb96687b516feed89

          SHA512

          ef4504169126709f8929dc497037491d03a99bffef21a45cc4f666af946859cf1e73c94a1c27c902c458232c7209d327f7906a66c3ac9b9830b0100ddc735544

        • C:\Windows\SYSTEM.INI

          Filesize

          255B

          MD5

          9d9098c33bccc84d039e2e748ec0ac53

          SHA1

          542d1e1235c9dce3f3aceabb82b6e0f0314d0394

          SHA256

          ef01e3c4254d3fcf291ed562093917185decea65f0bc97a544410e7f1ed4dc27

          SHA512

          a4068f9f3e93f129814c09b373d3155706ac867b9ca9f781ebda5020536c7a4211bbf93916a1c4d65356c8cbfbe4050e1024045042076b770e5cbb1b09bbb74f

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          249KB

          MD5

          0cdfb9583eb10a9414b72e426bc48633

          SHA1

          292a14bd146f499e82897073e25deef896e42929

          SHA256

          0683c323ea22a6268a6efe58f4fdf50873f4e3ee9eed266fb96687b516feed89

          SHA512

          ef4504169126709f8929dc497037491d03a99bffef21a45cc4f666af946859cf1e73c94a1c27c902c458232c7209d327f7906a66c3ac9b9830b0100ddc735544

        • memory/852-55-0x0000000001D30000-0x0000000002DBE000-memory.dmp

          Filesize

          16.6MB

        • memory/852-56-0x0000000000400000-0x000000000044C000-memory.dmp

          Filesize

          304KB

        • memory/852-57-0x0000000001D30000-0x0000000002DBE000-memory.dmp

          Filesize

          16.6MB

        • memory/852-58-0x0000000002DC0000-0x0000000002DC2000-memory.dmp

          Filesize

          8KB

        • memory/852-62-0x0000000000400000-0x000000000044C000-memory.dmp

          Filesize

          304KB

        • memory/852-71-0x0000000001D30000-0x0000000002DBE000-memory.dmp

          Filesize

          16.6MB

        • memory/852-54-0x0000000074E41000-0x0000000074E43000-memory.dmp

          Filesize

          8KB

        • memory/1492-65-0x0000000001D50000-0x0000000002DDE000-memory.dmp

          Filesize

          16.6MB

        • memory/1492-68-0x0000000001D50000-0x0000000002DDE000-memory.dmp

          Filesize

          16.6MB

        • memory/1492-69-0x00000000033E0000-0x00000000033E2000-memory.dmp

          Filesize

          8KB

        • memory/1492-64-0x0000000000400000-0x000000000044C000-memory.dmp

          Filesize

          304KB

        • memory/1492-72-0x0000000001D50000-0x0000000002DDE000-memory.dmp

          Filesize

          16.6MB

        • memory/1492-73-0x00000000033E0000-0x00000000033E2000-memory.dmp

          Filesize

          8KB

        • memory/1492-74-0x0000000000400000-0x000000000044C000-memory.dmp

          Filesize

          304KB