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Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18/04/2024, 02:34

General

  • Target

    cb3dbf77aa358ff3cc291a3fe61f6f637ff883dd98a46971af9a5080ad4152e5.dll

  • Size

    120KB

  • MD5

    b27012ec736fa90fc93e6c0f2d192c63

  • SHA1

    cfebed27985c679b099b991b8f18fd3b8483f05b

  • SHA256

    cb3dbf77aa358ff3cc291a3fe61f6f637ff883dd98a46971af9a5080ad4152e5

  • SHA512

    8b8bb31bca9cfef8c47e19722f8e217e45bb12d78a9b0a0cb97f073decbcd9ad7f251003129f087d98934704deb2baef1ca2b8f00ac40331c176a726fd33d641

  • SSDEEP

    1536:HcuZf18X/OOwpQm1J5oidOyjbN4s5wk2GcobqKZrOxXPBwfMcQ2UUY3vcpVXfy5O:8uf5/B5oidv20wkSnmrOxpwfQzUk6vy

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 23 IoCs
  • UPX dump on OEP (original entry point) 27 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 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1092
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1168
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1200
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\cb3dbf77aa358ff3cc291a3fe61f6f637ff883dd98a46971af9a5080ad4152e5.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2772
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\cb3dbf77aa358ff3cc291a3fe61f6f637ff883dd98a46971af9a5080ad4152e5.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2272
              • C:\Users\Admin\AppData\Local\Temp\f7686eb.exe
                C:\Users\Admin\AppData\Local\Temp\f7686eb.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:2984
              • C:\Users\Admin\AppData\Local\Temp\f768d13.exe
                C:\Users\Admin\AppData\Local\Temp\f768d13.exe
                4⤵
                • Executes dropped EXE
                PID:2072
              • C:\Users\Admin\AppData\Local\Temp\f76a11f.exe
                C:\Users\Admin\AppData\Local\Temp\f76a11f.exe
                4⤵
                • Executes dropped EXE
                PID:2868
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1320

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • \Users\Admin\AppData\Local\Temp\f7686eb.exe

            Filesize

            97KB

            MD5

            89b54e407fda0baa9707c8745ea9b45a

            SHA1

            5ab37cdfd4b81cc23bc7451de44f0489a0e1e552

            SHA256

            fe2a57f8f63deb51c48c345355f36a0ada3ae7b16fbedef19d2d9fa0248b9777

            SHA512

            21817d154528e997660d782d6bc23096b8053bec58eafd066e83ef37bfa0a9ac9f1822103347cf03f481df57fa5315a817127758dbe2b3edf702ed4a47377d39

          • memory/1092-17-0x0000000001BC0000-0x0000000001BC2000-memory.dmp

            Filesize

            8KB

          • memory/2072-96-0x00000000001C0000-0x00000000001C1000-memory.dmp

            Filesize

            4KB

          • memory/2072-95-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/2072-93-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/2072-47-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2272-31-0x0000000000160000-0x0000000000162000-memory.dmp

            Filesize

            8KB

          • memory/2272-5-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2272-32-0x0000000000230000-0x0000000000231000-memory.dmp

            Filesize

            4KB

          • memory/2272-0-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2272-43-0x00000000002C0000-0x00000000002D2000-memory.dmp

            Filesize

            72KB

          • memory/2272-27-0x0000000000160000-0x0000000000162000-memory.dmp

            Filesize

            8KB

          • memory/2272-29-0x0000000000230000-0x0000000000231000-memory.dmp

            Filesize

            4KB

          • memory/2272-75-0x00000000002C0000-0x00000000002D2000-memory.dmp

            Filesize

            72KB

          • memory/2272-73-0x0000000000160000-0x0000000000162000-memory.dmp

            Filesize

            8KB

          • memory/2272-2-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2868-150-0x0000000000A80000-0x0000000001B3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2868-104-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2868-78-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2868-103-0x00000000003B0000-0x00000000003B1000-memory.dmp

            Filesize

            4KB

          • memory/2868-149-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2868-151-0x0000000000A80000-0x0000000001B3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-57-0x0000000000310000-0x0000000000312000-memory.dmp

            Filesize

            8KB

          • memory/2984-81-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-58-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-60-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-61-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-62-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-63-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-64-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-46-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-52-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-16-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-79-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-80-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-59-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-83-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-51-0x0000000000310000-0x0000000000312000-memory.dmp

            Filesize

            8KB

          • memory/2984-11-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2984-50-0x0000000000330000-0x0000000000331000-memory.dmp

            Filesize

            4KB

          • memory/2984-97-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-105-0x0000000000310000-0x0000000000312000-memory.dmp

            Filesize

            8KB

          • memory/2984-13-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-28-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-106-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-144-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2984-143-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-24-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-19-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2984-15-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB