Analysis

  • max time kernel
    153s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    14-10-2022 11:26

General

  • Target

    7f9879e3bd4c0276a76d7467aa5ae3d16b4d3bb86a530f5f7ca0221f42fbc3eb.exe

  • Size

    254KB

  • MD5

    7589ada034881b827fa63ef817a359c7

  • SHA1

    9575cf9f7068c882f05611fff623bd05d2f28b7e

  • SHA256

    7f9879e3bd4c0276a76d7467aa5ae3d16b4d3bb86a530f5f7ca0221f42fbc3eb

  • SHA512

    afa1438e095191eb9e7e3db25905d2fff6d96cf1fe4bf9948c3f07432610333e7eb7a76a1555793b1571e73d99043a20c6e519d02cfb2a7aaea3a8d8e746592a

  • SSDEEP

    6144:yeR4gE/ljbOW/BOrtXC1QqmXO71/pSVop0kSq0X:fE/9/BOXCOqmXO7ZpQopyP

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
  • Disables RegEdit via registry modification 2 IoCs
  • Disables Task Manager via registry modification
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 4 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 1 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 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7f9879e3bd4c0276a76d7467aa5ae3d16b4d3bb86a530f5f7ca0221f42fbc3eb.exe
    "C:\Users\Admin\AppData\Local\Temp\7f9879e3bd4c0276a76d7467aa5ae3d16b4d3bb86a530f5f7ca0221f42fbc3eb.exe"
    1⤵
    • Modifies firewall policy service
    • UAC bypass
    • Windows security bypass
    • Disables RegEdit via registry modification
    • 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:2016
    • 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\
      2⤵
      • Modifies firewall policy service
      • UAC bypass
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Deletes itself
      • Loads dropped DLL
      • 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:964
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1232
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1180
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1108

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\006C91E4_Rar\7f9879e3bd4c0276a76d7467aa5ae3d16b4d3bb86a530f5f7ca0221f42fbc3eb.exe

          Filesize

          182KB

          MD5

          68d93b614b88d96585d8f5a41a416799

          SHA1

          729dcbcd381cf885c531134dfe64650f25b069d2

          SHA256

          0e14e611295d5a9362163eb8d6fbfb701dc6911307f1ed8819ba154c996c45d4

          SHA512

          d86aea59b1c1377560aa8c223182b3accd9b2d20b1132d1128288c729246a538a3b1838decd9e5af182db628550302b535c3fe29ac1d13366e690bcd20b3fc13

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

          Filesize

          254KB

          MD5

          7589ada034881b827fa63ef817a359c7

          SHA1

          9575cf9f7068c882f05611fff623bd05d2f28b7e

          SHA256

          7f9879e3bd4c0276a76d7467aa5ae3d16b4d3bb86a530f5f7ca0221f42fbc3eb

          SHA512

          afa1438e095191eb9e7e3db25905d2fff6d96cf1fe4bf9948c3f07432610333e7eb7a76a1555793b1571e73d99043a20c6e519d02cfb2a7aaea3a8d8e746592a

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

          Filesize

          254KB

          MD5

          7589ada034881b827fa63ef817a359c7

          SHA1

          9575cf9f7068c882f05611fff623bd05d2f28b7e

          SHA256

          7f9879e3bd4c0276a76d7467aa5ae3d16b4d3bb86a530f5f7ca0221f42fbc3eb

          SHA512

          afa1438e095191eb9e7e3db25905d2fff6d96cf1fe4bf9948c3f07432610333e7eb7a76a1555793b1571e73d99043a20c6e519d02cfb2a7aaea3a8d8e746592a

        • C:\Windows\SYSTEM.INI

          Filesize

          253B

          MD5

          97e88d1fb9d117ede8206c2f9d9cba97

          SHA1

          97077766a9f18bc069299fa3c3a59ab0bd190a89

          SHA256

          233eb0819fbef2ae4a7e0618d84fed6e45fa8066c2dfa5879da18eb69e690f47

          SHA512

          14e7115085ecf690f1f597633ee2ff15f5149e015f274a8bdb7d9610bc1ecfef52cf3d96d8ef465d334224236591369aa5c3eeb65f03552087cf412738709755

        • \Users\Admin\AppData\Local\Temp\nso9723.tmp\System.dll

          Filesize

          11KB

          MD5

          00a0194c20ee912257df53bfe258ee4a

          SHA1

          d7b4e319bc5119024690dc8230b9cc919b1b86b2

          SHA256

          dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

          SHA512

          3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

        • \Users\Admin\AppData\Local\Temp\nso9723.tmp\UAC.dll

          Filesize

          17KB

          MD5

          88ad3fd90fc52ac3ee0441a38400a384

          SHA1

          08bc9e1f5951b54126b5c3c769e3eaed42f3d10b

          SHA256

          e58884695378cf02715373928bb8ade270baf03144369463f505c3b3808cbc42

          SHA512

          359496f571e6fa2ec4c5ab5bd1d35d1330586f624228713ae55c65a69e07d8623022ef54337c22c3aab558a9b74d9977c8436f5fea4194899d9ef3ffd74e7dbb

        • \Users\Admin\AppData\Local\Temp\nso9723.tmp\nsDialogs.dll

          Filesize

          9KB

          MD5

          ab73c0c2a23f913eabdc4cb24b75cbad

          SHA1

          6569d2863d54c88dcf57c843fc310f6d9571a41e

          SHA256

          3d0060c5c9400a487dbefe4ac132dd96b07d3a4ba3badab46a7410a667c93457

          SHA512

          99d287b5152944f64edc7ce8f3ebcd294699e54a5b42ac7a88e27dff8a68278a5429f4d299802ee7ddbe290f1e3b6a372a5f3bb4ecb1a3c32e384bca3ccdb2b8

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

          Filesize

          254KB

          MD5

          7589ada034881b827fa63ef817a359c7

          SHA1

          9575cf9f7068c882f05611fff623bd05d2f28b7e

          SHA256

          7f9879e3bd4c0276a76d7467aa5ae3d16b4d3bb86a530f5f7ca0221f42fbc3eb

          SHA512

          afa1438e095191eb9e7e3db25905d2fff6d96cf1fe4bf9948c3f07432610333e7eb7a76a1555793b1571e73d99043a20c6e519d02cfb2a7aaea3a8d8e746592a

        • memory/964-71-0x0000000002490000-0x00000000030DA000-memory.dmp

          Filesize

          12.3MB

        • memory/964-64-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/964-57-0x0000000000000000-mapping.dmp

        • memory/964-69-0x0000000002FC0000-0x000000000404E000-memory.dmp

          Filesize

          16.6MB

        • memory/964-72-0x0000000002490000-0x00000000030DA000-memory.dmp

          Filesize

          12.3MB

        • memory/964-74-0x0000000002490000-0x00000000030DA000-memory.dmp

          Filesize

          12.3MB

        • memory/964-75-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/2016-54-0x0000000076711000-0x0000000076713000-memory.dmp

          Filesize

          8KB

        • memory/2016-62-0x0000000004620000-0x000000000468C000-memory.dmp

          Filesize

          432KB

        • memory/2016-63-0x0000000001ED0000-0x0000000002F5E000-memory.dmp

          Filesize

          16.6MB

        • memory/2016-61-0x0000000000370000-0x0000000000372000-memory.dmp

          Filesize

          8KB

        • memory/2016-60-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/2016-55-0x0000000001ED0000-0x0000000002F5E000-memory.dmp

          Filesize

          16.6MB