Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-12-2024 11:21

General

  • Target

    b8a3c5f088ebb3e8e227678f4de67c162fc995a4e726aa0d731a5d77472c34deN.dll

  • Size

    120KB

  • MD5

    31f91bf6ce54b2c97feb8f4676e05e20

  • SHA1

    781848ed8afe64b32a66e2f5a2348beecd1a9139

  • SHA256

    b8a3c5f088ebb3e8e227678f4de67c162fc995a4e726aa0d731a5d77472c34de

  • SHA512

    81067238e3a359629d5ea8cc159732b96aa834873046d9289206136f24e4da7145a7e12baccc4552e23f7b597d678b2f7b0636ccbb4eb1c8d54cadd502864749

  • SSDEEP

    3072:1kOJG3QLzHogFkNvIH2j/qOqE3Lf2bfte:UUzHJkNl77f2b

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 3 TTPs 6 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • Sality family
  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 15 IoCs

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

  • UPX packed file 23 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1056
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1100
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1180
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\b8a3c5f088ebb3e8e227678f4de67c162fc995a4e726aa0d731a5d77472c34deN.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2416
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\b8a3c5f088ebb3e8e227678f4de67c162fc995a4e726aa0d731a5d77472c34deN.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2576
              • C:\Users\Admin\AppData\Local\Temp\f76b3b5.exe
                C:\Users\Admin\AppData\Local\Temp\f76b3b5.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
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:1536
              • C:\Users\Admin\AppData\Local\Temp\f76b599.exe
                C:\Users\Admin\AppData\Local\Temp\f76b599.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 Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2808
              • C:\Users\Admin\AppData\Local\Temp\f76cf9e.exe
                C:\Users\Admin\AppData\Local\Temp\f76cf9e.exe
                4⤵
                • Executes dropped EXE
                PID:1636
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:2040

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\f76b3b5.exe

            Filesize

            97KB

            MD5

            03c23d8729858a25f586e80e63f70e3b

            SHA1

            3cf7a5faa8c5c3b4a5b584f6329412bf1a6f364e

            SHA256

            04a4c9b770f2db3c798fe537bef3195e8d35639811e790940d53450cd9ebcf24

            SHA512

            4d387bf17e7703c56b4e2e35c0688c92137750868b41a69a13c9c339c696ce2e85a3ecb2603203a2dcd6c1648fa5ec1bd63e75b12d43d85ddc8b314960e5bb9b

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            e173a5d838a263d3113905e4ecfac2e5

            SHA1

            384363422e58afc76c1ab0779e9d23247521d995

            SHA256

            5d8ca37a8d27b12260867d9ef6793b784727ddf3186e8535ded9517efc050062

            SHA512

            eb83b873bc4d404824647b430691580a4c3614283a6db7b703b1f334b63b201b10e229a43112865d1eaa39c2982d512f3f874ddf17b8c3e5740517f61e057eaa

          • memory/1056-32-0x0000000002070000-0x0000000002072000-memory.dmp

            Filesize

            8KB

          • memory/1536-89-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-65-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-14-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1536-64-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-25-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-18-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-22-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-24-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-52-0x00000000005A0000-0x00000000005A2000-memory.dmp

            Filesize

            8KB

          • memory/1536-26-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-157-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1536-158-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-88-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-50-0x00000000005A0000-0x00000000005A2000-memory.dmp

            Filesize

            8KB

          • memory/1536-49-0x00000000005B0000-0x00000000005B1000-memory.dmp

            Filesize

            4KB

          • memory/1536-86-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-72-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-70-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-68-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-23-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-21-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-20-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-19-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-17-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-67-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1536-66-0x00000000006D0000-0x000000000178A000-memory.dmp

            Filesize

            16.7MB

          • memory/1636-112-0x00000000003E0000-0x00000000003E2000-memory.dmp

            Filesize

            8KB

          • memory/1636-85-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1636-199-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1636-136-0x00000000003E0000-0x00000000003E2000-memory.dmp

            Filesize

            8KB

          • memory/1636-111-0x00000000003F0000-0x00000000003F1000-memory.dmp

            Filesize

            4KB

          • memory/2576-84-0x0000000000130000-0x0000000000132000-memory.dmp

            Filesize

            8KB

          • memory/2576-61-0x00000000002A0000-0x00000000002B2000-memory.dmp

            Filesize

            72KB

          • memory/2576-13-0x0000000000130000-0x0000000000142000-memory.dmp

            Filesize

            72KB

          • memory/2576-40-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2576-43-0x0000000000200000-0x0000000000201000-memory.dmp

            Filesize

            4KB

          • memory/2576-0-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2576-59-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2576-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2576-4-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2576-12-0x0000000000130000-0x0000000000142000-memory.dmp

            Filesize

            72KB

          • memory/2576-2-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2576-41-0x0000000000200000-0x0000000000201000-memory.dmp

            Filesize

            4KB

          • memory/2576-62-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2808-101-0x00000000003F0000-0x00000000003F1000-memory.dmp

            Filesize

            4KB

          • memory/2808-135-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2808-195-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2808-172-0x0000000000920000-0x00000000019DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2808-105-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2808-63-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2808-194-0x0000000000920000-0x00000000019DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2808-110-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB