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Analysis

  • max time kernel
    131s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14/03/2024, 09:25

General

  • Target

    c84596eabcb5355a1971768422178896.exe

  • Size

    97KB

  • MD5

    c84596eabcb5355a1971768422178896

  • SHA1

    9c7a802afcf8f79748ea1a1e686ba29707618f73

  • SHA256

    6eccc530a4cb3608b976d9ba876194f72c6a44d84a3d3939bbbc272119eab62e

  • SHA512

    2113ec67a0ab81ee9b66b14b728ca469491dfc76eba3712f5df93cdd81e3b491ef960da776caf5c49922ee3c842c15db75f0fdc15e44b889128b7f2142630878

  • SSDEEP

    1536:UWo4XB3JqP9zKGBowPU4njsvYupTWtbUeRhz931srYlZ2DzP+pPK2I:UWoOm4QZPh67RJmhdaI67iPx

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

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 32 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 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 2 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1116
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1192
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1280
          • C:\Users\Admin\AppData\Local\Temp\c84596eabcb5355a1971768422178896.exe
            "C:\Users\Admin\AppData\Local\Temp\c84596eabcb5355a1971768422178896.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:1220
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1760

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\tafuap.exe

            Filesize

            97KB

            MD5

            19185c41f1db55f4a19c12ae065697a5

            SHA1

            0914f33547d46b10adb9d2a3383809be5d998cb5

            SHA256

            86f5ea207172c2863aa5d740dab9d9a4df8c59ba07e52e78351d308d2179c0e7

            SHA512

            8ad2811eb02ddaf4e336de960b64b843559977d0a8711960fd8993d843547353c0c1cb3090507bc7fd61e0ba20359b6290c8e378f60d2a1f677b602e9f2f6768

          • memory/1116-10-0x0000000001B40000-0x0000000001B42000-memory.dmp

            Filesize

            8KB

          • memory/1220-34-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-36-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-6-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-5-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-7-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-3-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-14-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-17-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-18-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-37-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-24-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-25-0x00000000033D0000-0x00000000033D2000-memory.dmp

            Filesize

            8KB

          • memory/1220-21-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-28-0x0000000003880000-0x0000000003881000-memory.dmp

            Filesize

            4KB

          • memory/1220-29-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-31-0x00000000033D0000-0x00000000033D2000-memory.dmp

            Filesize

            8KB

          • memory/1220-32-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-33-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-4-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-0-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1220-26-0x0000000003880000-0x0000000003881000-memory.dmp

            Filesize

            4KB

          • memory/1220-39-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-40-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-44-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-47-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-50-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-53-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-61-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-62-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-64-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-66-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-70-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-73-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-76-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-77-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-79-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB

          • memory/1220-89-0x00000000033D0000-0x00000000033D2000-memory.dmp

            Filesize

            8KB

          • memory/1220-1-0x0000000000680000-0x000000000173A000-memory.dmp

            Filesize

            16.7MB