Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 23:01

General

  • Target

    880e5a11c5dc597bef079d42bb3d7ee054ee236c213cdb996306f561bae455bc.dll

  • Size

    120KB

  • MD5

    8d6eb02480c0ba49c2b32b6d0c05ffd1

  • SHA1

    1b4bcb418e9703e17f79d6eae12825c07c3fc47b

  • SHA256

    880e5a11c5dc597bef079d42bb3d7ee054ee236c213cdb996306f561bae455bc

  • SHA512

    30d7f68161374e070d58c6d139ba92f00a9b260da9bc443029c8d0c7a1439f8652f857787a29fe69cf11f85147ed9d63980e9461d1bcf85b52cee349b57b4697

  • SSDEEP

    3072:92InALuPiyh0gx8Wopx11lBz87OTreeT39:znALuPirzy7Onh

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 22 IoCs
  • UPX dump on OEP (original entry point) 27 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 22 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 7 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1128
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1176
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1204
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\880e5a11c5dc597bef079d42bb3d7ee054ee236c213cdb996306f561bae455bc.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1648
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\880e5a11c5dc597bef079d42bb3d7ee054ee236c213cdb996306f561bae455bc.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2356
              • C:\Users\Admin\AppData\Local\Temp\f76564a.exe
                C:\Users\Admin\AppData\Local\Temp\f76564a.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:2392
              • C:\Users\Admin\AppData\Local\Temp\f766049.exe
                C:\Users\Admin\AppData\Local\Temp\f766049.exe
                4⤵
                • Executes dropped EXE
                PID:2972
              • C:\Users\Admin\AppData\Local\Temp\f7670fb.exe
                C:\Users\Admin\AppData\Local\Temp\f7670fb.exe
                4⤵
                • Executes dropped EXE
                PID:3000
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:2220

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Persistence

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Privilege Escalation

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Defense Evasion

          Modify Registry

          5
          T1112

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Impair Defenses

          3
          T1562

          Disable or Modify Tools

          3
          T1562.001

          Discovery

          System Information Discovery

          2
          T1082

          Query Registry

          1
          T1012

          Peripheral Device Discovery

          1
          T1120

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\f76564a.exe
            Filesize

            97KB

            MD5

            5ec91a8e0dbba87def9603f1bfa29ebb

            SHA1

            aa77f7a1026cd73c845096ec2fe3e83f2e7c9149

            SHA256

            54cbfb69918ceb312857e4bcc2a63d0fdc8d0d4cb654702a15d052fed766e8e0

            SHA512

            cc89e922fb43f0aca665a27cc2655dc626fa6d20b6da2e55bc055c7b5ba0a054e6e0f7521f7bf452bad100f92f722ce667630fbedcc225c759ce6220f1aed6b5

          • memory/1128-17-0x0000000001D20000-0x0000000001D22000-memory.dmp
            Filesize

            8KB

          • memory/2356-70-0x0000000000370000-0x0000000000382000-memory.dmp
            Filesize

            72KB

          • memory/2356-68-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/2356-9-0x0000000010000000-0x0000000010020000-memory.dmp
            Filesize

            128KB

          • memory/2356-0-0x0000000010000000-0x0000000010020000-memory.dmp
            Filesize

            128KB

          • memory/2356-38-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/2356-73-0x0000000000370000-0x0000000000382000-memory.dmp
            Filesize

            72KB

          • memory/2356-11-0x0000000000170000-0x0000000000182000-memory.dmp
            Filesize

            72KB

          • memory/2356-74-0x0000000000170000-0x0000000000176000-memory.dmp
            Filesize

            24KB

          • memory/2356-10-0x0000000000170000-0x0000000000182000-memory.dmp
            Filesize

            72KB

          • memory/2356-51-0x0000000000370000-0x0000000000382000-memory.dmp
            Filesize

            72KB

          • memory/2356-41-0x00000000001C0000-0x00000000001C1000-memory.dmp
            Filesize

            4KB

          • memory/2356-31-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/2356-36-0x00000000001C0000-0x00000000001C1000-memory.dmp
            Filesize

            4KB

          • memory/2392-19-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-79-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-26-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-91-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-23-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-40-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-54-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-56-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-57-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-58-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-59-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-60-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-16-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-89-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-15-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-12-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-13-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2392-77-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-78-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-30-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-82-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-84-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2392-85-0x0000000000520000-0x00000000015DA000-memory.dmp
            Filesize

            16.7MB

          • memory/2972-52-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2972-105-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/3000-76-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/3000-106-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB