Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17/05/2024, 03:35

General

  • Target

    bf6f2d23a172676f8ba1b77b10896440a5997eefbcb05a6fad43c3cd2399e01b.exe

  • Size

    65KB

  • MD5

    8fe9e72c5ca68f0a3cbb5d218ec72506

  • SHA1

    754dce051d9a1dc557b7e66e3bb8af7815f7de69

  • SHA256

    bf6f2d23a172676f8ba1b77b10896440a5997eefbcb05a6fad43c3cd2399e01b

  • SHA512

    f42dc33c57f6b71d8f99c681d4f907f1f63ca4f4a42ec759378b1b90d3f135bb17bf00adfb6ac274d86738a04a33c6de43dfffc8957b83183577418212bee3f0

  • SSDEEP

    1536:DceB0rQrZJQt/DxlGdyMX5PgNz5ojR6Zyj+oH4Hd+oDaBdJYEB:DPB0krctrXxKPgRE+oHeMoi2Y

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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 30 IoCs
  • UPX dump on OEP (original entry point) 31 IoCs
  • UPX packed file 30 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 15 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1060
    • C:\Windows\system32\taskhost.exe
      "taskhost.exe"
      1⤵
        PID:1088
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1136
          • C:\Users\Admin\AppData\Local\Temp\bf6f2d23a172676f8ba1b77b10896440a5997eefbcb05a6fad43c3cd2399e01b.exe
            "C:\Users\Admin\AppData\Local\Temp\bf6f2d23a172676f8ba1b77b10896440a5997eefbcb05a6fad43c3cd2399e01b.exe"
            2⤵
            • Modifies firewall policy service
            • UAC bypass
            • Windows security bypass
            • Windows security modification
            • Checks whether UAC is enabled
            • Enumerates connected drives
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:2388
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1608

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • memory/1060-12-0x00000000001B0000-0x00000000001B2000-memory.dmp

                  Filesize

                  8KB

                • memory/2388-35-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-8-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-10-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-11-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-7-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-5-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-25-0x00000000002E0000-0x00000000002E2000-memory.dmp

                  Filesize

                  8KB

                • memory/2388-24-0x00000000003F0000-0x00000000003F1000-memory.dmp

                  Filesize

                  4KB

                • memory/2388-27-0x00000000002E0000-0x00000000002E2000-memory.dmp

                  Filesize

                  8KB

                • memory/2388-23-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-4-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-20-0x00000000003F0000-0x00000000003F1000-memory.dmp

                  Filesize

                  4KB

                • memory/2388-19-0x00000000002E0000-0x00000000002E2000-memory.dmp

                  Filesize

                  8KB

                • memory/2388-6-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-0-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2388-1-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-33-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-32-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-3-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-34-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-44-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-38-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-39-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-40-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-42-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-36-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-55-0x0000000003FD0000-0x0000000003FD2000-memory.dmp

                  Filesize

                  8KB

                • memory/2388-54-0x0000000003FE0000-0x0000000003FE1000-memory.dmp

                  Filesize

                  4KB

                • memory/2388-56-0x0000000003FD0000-0x0000000003FD2000-memory.dmp

                  Filesize

                  8KB

                • memory/2388-57-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-58-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-61-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-62-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-67-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-71-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-74-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-80-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-83-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-108-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2388-107-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB