Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-09-2024 18:55

General

  • Target

    7ZSfxMod.exe

  • Size

    3.6MB

  • MD5

    60360a0972149ee8ca84c288bdf39d6c

  • SHA1

    843c4ffbca3b189088180661939c6a13dd01d20c

  • SHA256

    b2afdcbf92f1b41139d177ef0f232631b25f5b05731b7348de0ad7ef89ed51a1

  • SHA512

    aab61fc28a166c1cb653c5482e3f6db70ee88216a28805a78d8072777e1c44a0461c9edda541cfdd6815ace3976e1f74aa4afbcc1a5b1e9241c3fedec46374b5

  • SSDEEP

    98304:ctAHsVyBjcigPR21cmyoqJ+/ftPgKUJpF+fpHLOsg55ISgEHFY:ctAHHjwRFmAJSgPFAiJ5etV

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

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Modifies firewall policy service 3 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 Floxif payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 20 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 2 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1120
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1192
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1252
          • C:\Users\Admin\AppData\Local\Temp\7ZSfxMod.exe
            "C:\Users\Admin\AppData\Local\Temp\7ZSfxMod.exe"
            2⤵
            • Modifies firewall policy service
            • UAC bypass
            • Windows security bypass
            • Loads dropped DLL
            • Windows security modification
            • Checks whether UAC is enabled
            • Enumerates connected drives
            • Drops file in Program Files directory
            • 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:2248
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1612

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files\Common Files\System\symsrv.dll

            Filesize

            67KB

            MD5

            7574cf2c64f35161ab1292e2f532aabf

            SHA1

            14ba3fa927a06224dfe587014299e834def4644f

            SHA256

            de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

            SHA512

            4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

          • memory/1120-15-0x0000000001B40000-0x0000000001B42000-memory.dmp

            Filesize

            8KB

          • memory/2248-22-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2248-13-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-14-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-31-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-39-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-12-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-30-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2248-27-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-26-0x0000000000400000-0x0000000000434000-memory.dmp

            Filesize

            208KB

          • memory/2248-28-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-25-0x0000000000540000-0x0000000000541000-memory.dmp

            Filesize

            4KB

          • memory/2248-8-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-34-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-33-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-29-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-32-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-23-0x0000000000540000-0x0000000000541000-memory.dmp

            Filesize

            4KB

          • memory/2248-7-0x0000000000400000-0x0000000000434000-memory.dmp

            Filesize

            208KB

          • memory/2248-6-0x000000000040F000-0x0000000000413000-memory.dmp

            Filesize

            16KB

          • memory/2248-4-0x0000000010000000-0x0000000010030000-memory.dmp

            Filesize

            192KB

          • memory/2248-0-0x0000000000400000-0x0000000000434000-memory.dmp

            Filesize

            208KB

          • memory/2248-41-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-40-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-44-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-45-0x0000000010000000-0x0000000010030000-memory.dmp

            Filesize

            192KB

          • memory/2248-57-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2248-47-0x0000000002860000-0x00000000038EE000-memory.dmp

            Filesize

            16.6MB

          • memory/2248-65-0x0000000010000000-0x0000000010030000-memory.dmp

            Filesize

            192KB

          • memory/2248-64-0x0000000000400000-0x0000000000434000-memory.dmp

            Filesize

            208KB