Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    26/05/2024, 22:27

General

  • Target
    64b8f9f5155aa3633e1b47d5ac57f6a23aa44e90ba56f66291143e1df0a91701.dll
  • Size 120KB
  • Sample240526-2db2tsfc73
  • SHA256 64b8f9f5155aa3633e1b47d5ac57f6a23aa44e90ba56f66291143e1df0a91701
  • MD5 SHA1 SHA512 SSDEEP

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 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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 23 IoCs
  • UPX dump on OEP (original entry point) 28 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 23 IoCs

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

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 11 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1112
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1160
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1208
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\64b8f9f5155aa3633e1b47d5ac57f6a23aa44e90ba56f66291143e1df0a91701.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2432
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\64b8f9f5155aa3633e1b47d5ac57f6a23aa44e90ba56f66291143e1df0a91701.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2488
              • C:\Users\Admin\AppData\Local\Temp\f760d4a.exe
                C:\Users\Admin\AppData\Local\Temp\f760d4a.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • 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:1084
              • C:\Users\Admin\AppData\Local\Temp\f760ec0.exe
                C:\Users\Admin\AppData\Local\Temp\f760ec0.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • 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:2592
              • C:\Users\Admin\AppData\Local\Temp\f763459.exe
                C:\Users\Admin\AppData\Local\Temp\f763459.exe
                4⤵
                • Executes dropped EXE
                PID:1448
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1872

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                SYSTEM.INI

                • Path C:\Windows\SYSTEM.INI
                • Size 257B
                • SHA256 f4ff13d41a047786d625618879b69c7dd0af9913f152b9cf837464e5e7e84328
                • MD5 SHA1 SHA512

                f760d4a.exe

                • Path \Users\Admin\AppData\Local\Temp\f760d4a.exe
                • Size 97KB
                • SHA256 d8085917b693eaaa6c27a7bbcf1dd7d405baf75d577d9d9e31bbef9bd875edae
                • MD5 SHA1 SHA512 SSDEEP

                memory/1084-63-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-118-0x00000000003F0000-0x00000000003F2000-memory.dmp

                memory/1084-148-0x0000000000400000-0x0000000000412000-memory.dmp

                memory/1084-16-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-17-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-23-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-19-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-20-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-50-0x00000000003F0000-0x00000000003F2000-memory.dmp

                memory/1084-149-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-53-0x00000000003F0000-0x00000000003F2000-memory.dmp

                memory/1084-48-0x0000000001820000-0x0000000001821000-memory.dmp

                memory/1084-11-0x0000000000400000-0x0000000000412000-memory.dmp

                memory/1084-21-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-106-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-104-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-102-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-14-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-22-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-18-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-15-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-99-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-69-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-67-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-66-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-64-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1084-65-0x00000000006A0000-0x000000000175A000-memory.dmp

                memory/1112-29-0x0000000000210000-0x0000000000212000-memory.dmp

                memory/1448-101-0x0000000000260000-0x0000000000262000-memory.dmp

                memory/1448-98-0x0000000000270000-0x0000000000271000-memory.dmp

                memory/1448-190-0x0000000000400000-0x0000000000412000-memory.dmp

                memory/1448-97-0x0000000000260000-0x0000000000262000-memory.dmp

                memory/2488-78-0x0000000000220000-0x0000000000222000-memory.dmp

                memory/2488-54-0x0000000000250000-0x0000000000262000-memory.dmp

                memory/2488-80-0x0000000000170000-0x0000000000172000-memory.dmp

                memory/2488-1-0x0000000010000000-0x0000000010020000-memory.dmp

                memory/2488-10-0x0000000000170000-0x0000000000182000-memory.dmp

                memory/2488-61-0x0000000000250000-0x0000000000262000-memory.dmp

                memory/2488-47-0x0000000000240000-0x0000000000241000-memory.dmp

                memory/2488-59-0x0000000000220000-0x0000000000222000-memory.dmp

                memory/2488-38-0x0000000000220000-0x0000000000222000-memory.dmp

                memory/2488-39-0x0000000000240000-0x0000000000241000-memory.dmp

                memory/2488-4-0x0000000000170000-0x0000000000182000-memory.dmp

                memory/2592-100-0x0000000000260000-0x0000000000262000-memory.dmp

                memory/2592-62-0x0000000000400000-0x0000000000412000-memory.dmp

                memory/2592-90-0x00000000002B0000-0x00000000002B1000-memory.dmp

                memory/2592-161-0x00000000009C0000-0x0000000001A7A000-memory.dmp

                memory/2592-185-0x0000000000400000-0x0000000000412000-memory.dmp

                memory/2592-186-0x00000000009C0000-0x0000000001A7A000-memory.dmp

                memory/2592-91-0x0000000000260000-0x0000000000262000-memory.dmp