Analysis

  • max time kernel
    76s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 09:44

General

  • Target

    b066f1b0618fd89fd4ce292856a01eb22b836e4591e7b46b101b62f5cfacf202N.dll

  • Size

    120KB

  • MD5

    b4883653254804f6697911663cd86f30

  • SHA1

    914095fdddfa5c5d5c8416daf777436a43492fe8

  • SHA256

    b066f1b0618fd89fd4ce292856a01eb22b836e4591e7b46b101b62f5cfacf202

  • SHA512

    a542654aa45c6ba584802260086b35c67ba26739423f6922fb217a202c53841c546f02552f5f0bb092e0586a3a5bfc2fd9119f859457caa256652fb0bf030e6c

  • SSDEEP

    1536:J0G8LCA22JjSJGLVhGDktWsDkYk6fJH5WzNrh1JUuzWLnKRjUb2nz/Z+IhQes1vu:kCYJ2o5A4W8kYHJqrh12O6ejD/Yb0o7

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 18 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 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:1052
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1140
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1164
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\b066f1b0618fd89fd4ce292856a01eb22b836e4591e7b46b101b62f5cfacf202N.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2696
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\b066f1b0618fd89fd4ce292856a01eb22b836e4591e7b46b101b62f5cfacf202N.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2780
              • C:\Users\Admin\AppData\Local\Temp\f76ec71.exe
                C:\Users\Admin\AppData\Local\Temp\f76ec71.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:2948
              • C:\Users\Admin\AppData\Local\Temp\f76eed2.exe
                C:\Users\Admin\AppData\Local\Temp\f76eed2.exe
                4⤵
                • Executes dropped EXE
                PID:2592
              • C:\Users\Admin\AppData\Local\Temp\f770e24.exe
                C:\Users\Admin\AppData\Local\Temp\f770e24.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:2224
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:2004

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\f76ec71.exe

            Filesize

            97KB

            MD5

            bfd88fca5e56c3cd724fa47f96a54c60

            SHA1

            2e149120471fc2b93d5239d36927abf746868c98

            SHA256

            c9653196b7b44c16727fe34a45f0f67988262a4c29fe3c36450bd634bb2f2427

            SHA512

            c55f64081c76c88fd0bd672ad4f1a315424b2fe3e5fefa45c45c4f8a7c0e6baabe31b246e6bbbf24504bbd68a94f3854f362c7b9675e5ba877683f2977cf5b02

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            54325410172e67b5920e63d1b68ffd6d

            SHA1

            d8b7c5d3aec5c9a424f79b70c3c81f8c0735a84c

            SHA256

            d52f62bb5358cba36c9531a67d141826043566c85b879335a7a1fc757d6b0bdc

            SHA512

            6919932301e8cbe8d7621a3734a80113ebfa7cd148c19aaac0d65bc3496736b7c2ba847f8ea83f6631e160078dae3b9d08050ef45de127938b3b697493096ce0

          • memory/1052-31-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/2224-107-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2224-171-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2224-217-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2224-104-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2224-105-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2224-216-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2224-85-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2592-189-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2592-129-0x00000000003E0000-0x00000000003E2000-memory.dmp

            Filesize

            8KB

          • memory/2592-99-0x00000000003F0000-0x00000000003F1000-memory.dmp

            Filesize

            4KB

          • memory/2592-106-0x00000000003E0000-0x00000000003E2000-memory.dmp

            Filesize

            8KB

          • memory/2592-62-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2592-108-0x00000000003E0000-0x00000000003E2000-memory.dmp

            Filesize

            8KB

          • memory/2780-80-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/2780-58-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/2780-48-0x00000000001C0000-0x00000000001C1000-memory.dmp

            Filesize

            4KB

          • memory/2780-3-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2780-39-0x00000000001C0000-0x00000000001C1000-memory.dmp

            Filesize

            4KB

          • memory/2780-38-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/2780-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2780-12-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2780-0-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2780-60-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/2780-2-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2948-87-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-18-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-65-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-67-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-66-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-70-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-71-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-86-0x0000000001710000-0x0000000001712000-memory.dmp

            Filesize

            8KB

          • memory/2948-49-0x0000000001720000-0x0000000001721000-memory.dmp

            Filesize

            4KB

          • memory/2948-63-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-72-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-25-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-89-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-64-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-59-0x0000000001710000-0x0000000001712000-memory.dmp

            Filesize

            8KB

          • memory/2948-51-0x0000000001710000-0x0000000001712000-memory.dmp

            Filesize

            8KB

          • memory/2948-16-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-22-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-20-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-17-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-157-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2948-158-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-19-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-21-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-13-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2948-24-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB

          • memory/2948-23-0x00000000005D0000-0x000000000168A000-memory.dmp

            Filesize

            16.7MB