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Analysis

  • max time kernel
    151s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 12:48

General

  • Target

    c8a1c9d51e37578f4a0f257e92b7c8fb94fa31abecb0ad4a37fbdbc6a12e2f70.exe

  • Size

    100KB

  • MD5

    984be2094f885f5dfb67a8e5c16f4ebc

  • SHA1

    ae6b5a6fd39380085d17dc856f269acdd0e1a8f8

  • SHA256

    c8a1c9d51e37578f4a0f257e92b7c8fb94fa31abecb0ad4a37fbdbc6a12e2f70

  • SHA512

    3ddc97647805e397b35a5d0e554b73559c2b4d4f7f0cf2866deff3aecbfab6d294c253cc250c71a88ea3f20291d51519472ab7c55c9fcde92817a75c30fdc299

  • SSDEEP

    1536:pcvEbGRd9PB7DmDj2/1a8aJU+XY8IGb7RZPWc0GiiQnxcu:yz9J7DmDCtehJ/0lxz

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 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.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 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:1284
      • C:\Users\Admin\AppData\Local\Temp\c8a1c9d51e37578f4a0f257e92b7c8fb94fa31abecb0ad4a37fbdbc6a12e2f70.exe
        "C:\Users\Admin\AppData\Local\Temp\c8a1c9d51e37578f4a0f257e92b7c8fb94fa31abecb0ad4a37fbdbc6a12e2f70.exe"
        2⤵
        • 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:1368
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1192
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1120

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1368-54-0x0000000075931000-0x0000000075933000-memory.dmp

          Filesize

          8KB

        • memory/1368-55-0x0000000001E20000-0x0000000002EAE000-memory.dmp

          Filesize

          16.6MB

        • memory/1368-56-0x0000000074B51000-0x0000000074B53000-memory.dmp

          Filesize

          8KB

        • memory/1368-57-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1368-58-0x0000000001E20000-0x0000000002EAE000-memory.dmp

          Filesize

          16.6MB

        • memory/1368-59-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/1368-60-0x0000000004350000-0x0000000004352000-memory.dmp

          Filesize

          8KB

        • memory/1368-61-0x0000000001E20000-0x0000000002EAE000-memory.dmp

          Filesize

          16.6MB

        • memory/1368-62-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/1368-63-0x0000000004350000-0x0000000004352000-memory.dmp

          Filesize

          8KB