Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 00:57

General

  • Target

    99c60186c570a0ef4e6951e19c714216ba6e7f4f27c3e68e135ddfda89876878.dll

  • Size

    120KB

  • MD5

    474edd37a54d3f8b36ced305a5512794

  • SHA1

    866c29fbc94bd5ab80856366a8a6c0b9048dd27f

  • SHA256

    99c60186c570a0ef4e6951e19c714216ba6e7f4f27c3e68e135ddfda89876878

  • SHA512

    951e75d90fbdb08aed2384735b7b07695500d39134fecc9838fa1890a2be81f38c604008e6ae005cc98d0b2ed238ffebcaa8046e4d51915f85a22822d7186109

  • SSDEEP

    3072:nPkAecUa+QNyH3fZEPCTF1dm2adHwAzN:sWUdEOvaPC/3axjp

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 24 IoCs
  • UPX dump on OEP (original entry point) 28 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 24 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 14 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 33 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:1176
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1200
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\99c60186c570a0ef4e6951e19c714216ba6e7f4f27c3e68e135ddfda89876878.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2328
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\99c60186c570a0ef4e6951e19c714216ba6e7f4f27c3e68e135ddfda89876878.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1556
              • C:\Users\Admin\AppData\Local\Temp\f76a92b.exe
                C:\Users\Admin\AppData\Local\Temp\f76a92b.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:1524
              • C:\Users\Admin\AppData\Local\Temp\f76ac27.exe
                C:\Users\Admin\AppData\Local\Temp\f76ac27.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
                • System policy modification
                PID:2532
              • C:\Users\Admin\AppData\Local\Temp\f76c487.exe
                C:\Users\Admin\AppData\Local\Temp\f76c487.exe
                4⤵
                • Executes dropped EXE
                PID:2712
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:2348

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            18d9de8c0ccf2f5c3ce05767846d240b

            SHA1

            bff3f3be5229584521d9f9dbb0b331a3f0cac202

            SHA256

            c434d522262ee59b861ebdc5231eb35e1df300201247e73e6ff9c3414414e131

            SHA512

            b3eee009a6b74813c77ac79c48de7776c76fdb01cb3da73965e665c4cab0da3429e663a0ba61d9eebd3a7c3b8b1e0e5850cc294c344dfc0ccdce5056db8b5c4c

          • \Users\Admin\AppData\Local\Temp\f76a92b.exe

            Filesize

            97KB

            MD5

            4865d9bd8fd04c1af6631e15f4171b01

            SHA1

            1baf405ceb55cfa35c5a69044603ea8583e0a1ef

            SHA256

            f3074295106404a859c1718c44f60e2f1ed3747ffe95c6647c7bd7e97de61336

            SHA512

            5da59bb0e2b9bb7b6c4f10a7148f7ad41cddd0970425cb64b5cb5415eb3b501ae4571055310a86743a63873b9bf7f1934a7ee3cc2129029ab46c5b443e4c966b

          • memory/1112-29-0x0000000000310000-0x0000000000312000-memory.dmp

            Filesize

            8KB

          • memory/1524-63-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-107-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-62-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-17-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-64-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-11-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1524-19-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-22-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-111-0x00000000002E0000-0x00000000002E2000-memory.dmp

            Filesize

            8KB

          • memory/1524-109-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-15-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-20-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-18-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-68-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-57-0x00000000002E0000-0x00000000002E2000-memory.dmp

            Filesize

            8KB

          • memory/1524-65-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-87-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-86-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-84-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-21-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-23-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-49-0x00000000002E0000-0x00000000002E2000-memory.dmp

            Filesize

            8KB

          • memory/1524-16-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-82-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-13-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1524-12-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1524-47-0x00000000005A0000-0x00000000005A1000-memory.dmp

            Filesize

            4KB

          • memory/1524-66-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/1556-58-0x00000000001C0000-0x00000000001D2000-memory.dmp

            Filesize

            72KB

          • memory/1556-10-0x0000000000120000-0x0000000000132000-memory.dmp

            Filesize

            72KB

          • memory/1556-79-0x0000000000120000-0x0000000000126000-memory.dmp

            Filesize

            24KB

          • memory/1556-77-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/1556-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/1556-36-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/1556-37-0x00000000001B0000-0x00000000001B1000-memory.dmp

            Filesize

            4KB

          • memory/1556-46-0x00000000001B0000-0x00000000001B1000-memory.dmp

            Filesize

            4KB

          • memory/1556-4-0x0000000000120000-0x0000000000132000-memory.dmp

            Filesize

            72KB

          • memory/1556-59-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/2532-104-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2532-96-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2532-61-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2532-171-0x0000000000950000-0x0000000001A0A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-99-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2532-178-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2532-177-0x0000000000950000-0x0000000001A0A000-memory.dmp

            Filesize

            16.7MB

          • memory/2712-81-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2712-103-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2712-106-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2712-105-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2712-182-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB