Analysis

  • max time kernel
    75s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2024 18:27

General

  • Target

    41a3dc3a9dc28174f929c6236470c8f2d311013dadabf9dbd18a4c6015d6fbf3N.dll

  • Size

    120KB

  • MD5

    f49444d08267b1a15bc9cbde19ec2e10

  • SHA1

    3f3ad478cf0abeb3caa820dc87ca6b087c7d7845

  • SHA256

    41a3dc3a9dc28174f929c6236470c8f2d311013dadabf9dbd18a4c6015d6fbf3

  • SHA512

    d39fc923dc06f439dee9414ac082eb32685eab1fd1590696e94121a6de13473b9dc98e8d0eb1e15532ebce83f7ab950153dfe35279cad182566bf7a4a759a488

  • SSDEEP

    3072:nN1OWDIoQhKmIBENMpu4bYgDTuxD3nbs:nN1O6IowIBEMu4bqxzg

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 17 IoCs

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

  • UPX packed file 24 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 45 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1116
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1176
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1268
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\41a3dc3a9dc28174f929c6236470c8f2d311013dadabf9dbd18a4c6015d6fbf3N.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1964
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\41a3dc3a9dc28174f929c6236470c8f2d311013dadabf9dbd18a4c6015d6fbf3N.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2664
              • C:\Users\Admin\AppData\Local\Temp\f76ef20.exe
                C:\Users\Admin\AppData\Local\Temp\f76ef20.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:1444
              • C:\Users\Admin\AppData\Local\Temp\f76f096.exe
                C:\Users\Admin\AppData\Local\Temp\f76f096.exe
                4⤵
                • Executes dropped EXE
                PID:2588
              • C:\Users\Admin\AppData\Local\Temp\f770aba.exe
                C:\Users\Admin\AppData\Local\Temp\f770aba.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:2164
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1312

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            ef92133a2aab4bba5422d012cbb10824

            SHA1

            ea106b6d205b298162f167b0c1b30093a058d162

            SHA256

            a45b67c600ffe1212d515a790213d8ecc859b8f3b0d1c0e2a4ba217ba15023c6

            SHA512

            184ab3064f4bf5d17536eb65eb55e43fd0d485fbd242cc705f1c0c228e397a9fd1717d166655367dd0c82ada4f430c8f26dce7847d00928b44ab6fd169415737

          • \Users\Admin\AppData\Local\Temp\f76ef20.exe

            Filesize

            97KB

            MD5

            1fe6721ba1a56445eb69a3020d5d3737

            SHA1

            1497bd84fd3a1847831dea31c7f49570bcc199b6

            SHA256

            15d70dd3e72d4b26b6929480dc8aa81ca293a2f9151bfadeb0d4a35f9738e798

            SHA512

            07e654694609e1a6561fd32d203a252230263735cb9482855bbe0063a1a3dc2834b6793c7d161bda0c4016e4efb1cab0180bc03a6bd1248842cb48a6bc48004d

          • memory/1116-28-0x00000000001E0000-0x00000000001E2000-memory.dmp

            Filesize

            8KB

          • memory/1444-90-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-14-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-12-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-67-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-65-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-16-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-19-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-89-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-51-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/1444-22-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-83-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/1444-64-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-11-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1444-162-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-48-0x0000000001760000-0x0000000001761000-memory.dmp

            Filesize

            4KB

          • memory/1444-161-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1444-50-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/1444-91-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-71-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-20-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-18-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-17-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-15-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-63-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-70-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-87-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-21-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/1444-66-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2164-178-0x0000000000900000-0x00000000019BA000-memory.dmp

            Filesize

            16.7MB

          • memory/2164-110-0x00000000003E0000-0x00000000003E2000-memory.dmp

            Filesize

            8KB

          • memory/2164-111-0x00000000003F0000-0x00000000003F1000-memory.dmp

            Filesize

            4KB

          • memory/2164-140-0x00000000003E0000-0x00000000003E2000-memory.dmp

            Filesize

            8KB

          • memory/2164-218-0x0000000000900000-0x00000000019BA000-memory.dmp

            Filesize

            16.7MB

          • memory/2164-219-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2588-102-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2588-135-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2588-62-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2588-166-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2588-100-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2588-105-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2664-75-0x00000000007C0000-0x00000000007D2000-memory.dmp

            Filesize

            72KB

          • memory/2664-10-0x0000000000210000-0x0000000000222000-memory.dmp

            Filesize

            72KB

          • memory/2664-9-0x0000000000210000-0x0000000000222000-memory.dmp

            Filesize

            72KB

          • memory/2664-80-0x0000000000740000-0x0000000000742000-memory.dmp

            Filesize

            8KB

          • memory/2664-38-0x0000000000750000-0x0000000000751000-memory.dmp

            Filesize

            4KB

          • memory/2664-47-0x0000000000750000-0x0000000000751000-memory.dmp

            Filesize

            4KB

          • memory/2664-58-0x0000000000740000-0x0000000000742000-memory.dmp

            Filesize

            8KB

          • memory/2664-84-0x00000000007C0000-0x00000000007D2000-memory.dmp

            Filesize

            72KB

          • memory/2664-60-0x00000000007A0000-0x00000000007B2000-memory.dmp

            Filesize

            72KB

          • memory/2664-61-0x0000000000740000-0x0000000000742000-memory.dmp

            Filesize

            8KB

          • memory/2664-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2664-37-0x0000000000740000-0x0000000000742000-memory.dmp

            Filesize

            8KB