Analysis

  • max time kernel
    153s
  • max time network
    101s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    04-10-2022 06:28

General

  • Target

    c383fcc36f68b68cf4bc3b9559656f703034a4b8c9de05b481ed1746a92bfb9c.exe

  • Size

    97KB

  • MD5

    4330a1fc6d432219aea135fee2849b6d

  • SHA1

    b72751a9d9a91b09ff65ea67073a0e96a63b83c7

  • SHA256

    c383fcc36f68b68cf4bc3b9559656f703034a4b8c9de05b481ed1746a92bfb9c

  • SHA512

    87755270fa13c1b733c2e6fc153a3bdabd93b9af1ce802df529576fa74e67fa23f89171be6b4c8cddd061d8c62c945fdad83cbbdedab5588600058a96a18d7bc

  • SSDEEP

    1536:zEPteCB5smGp1xr1KmN0nOmd2yg+Q5CdgL9G6fpqGNDkUQX00nSTom1:zEPxBmp1DN0nGyg9gs9G6fcGlkU2STH1

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
  • UPX packed file 3 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 22 IoCs

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

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 5 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c383fcc36f68b68cf4bc3b9559656f703034a4b8c9de05b481ed1746a92bfb9c.exe
    "C:\Users\Admin\AppData\Local\Temp\c383fcc36f68b68cf4bc3b9559656f703034a4b8c9de05b481ed1746a92bfb9c.exe"
    1⤵
    • Modifies firewall policy service
    • UAC bypass
    • Windows security bypass
    • Windows security modification
    • Checks whether UAC is enabled
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:968
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1224
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1192
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1128

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/968-54-0x0000000075501000-0x0000000075503000-memory.dmp

          Filesize

          8KB

        • memory/968-55-0x0000000000670000-0x000000000172A000-memory.dmp

          Filesize

          16.7MB

        • memory/968-56-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/968-57-0x0000000000670000-0x000000000172A000-memory.dmp

          Filesize

          16.7MB

        • memory/968-58-0x00000000747D1000-0x00000000747D3000-memory.dmp

          Filesize

          8KB

        • memory/968-59-0x00000000002F0000-0x00000000002F2000-memory.dmp

          Filesize

          8KB

        • memory/968-60-0x0000000003EE0000-0x0000000003EE2000-memory.dmp

          Filesize

          8KB

        • memory/968-61-0x0000000000670000-0x000000000172A000-memory.dmp

          Filesize

          16.7MB

        • memory/968-62-0x00000000002F0000-0x00000000002F2000-memory.dmp

          Filesize

          8KB

        • memory/968-63-0x0000000003EE0000-0x0000000003EE2000-memory.dmp

          Filesize

          8KB

        • memory/968-64-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB