Analysis

  • max time kernel
    157s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 15:20

General

  • Target

    2fa9da336f3b292db7b77ccf6c0388478d1a02e743f79dfaf5bfab65662381a8.exe

  • Size

    97KB

  • MD5

    025491ac5d5359c9fdcb3a4f583efcd0

  • SHA1

    ffe918e1becfa1b34f7546385ba90b801dbbe582

  • SHA256

    2fa9da336f3b292db7b77ccf6c0388478d1a02e743f79dfaf5bfab65662381a8

  • SHA512

    e8f4b864d457466f38be0217b7347d9ca56ee89fae1f85be54d240985eed49740a9b51bf0aeca6ca08e9c4f4af4bc306ccde3c5e2e96cfef30bd2548b03e2ae7

  • SSDEEP

    1536:Jxjum7wkejahCH/W2MZQQ4r+IqK0jRAO/NosEYZPBBIc/9K3wLOj/LWCJ9h/0R:HjuQwvYCe2IQ5EdAWoqPBB19eJ3/0

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 4 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:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1256
      • C:\Users\Admin\AppData\Local\Temp\2fa9da336f3b292db7b77ccf6c0388478d1a02e743f79dfaf5bfab65662381a8.exe
        "C:\Users\Admin\AppData\Local\Temp\2fa9da336f3b292db7b77ccf6c0388478d1a02e743f79dfaf5bfab65662381a8.exe"
        2⤵
        • 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:1224
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1196
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1132

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1224-54-0x0000000076041000-0x0000000076043000-memory.dmp

          Filesize

          8KB

        • memory/1224-55-0x0000000000980000-0x0000000001A3A000-memory.dmp

          Filesize

          16.7MB

        • memory/1224-56-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/1224-57-0x0000000000980000-0x0000000001A3A000-memory.dmp

          Filesize

          16.7MB

        • memory/1224-58-0x0000000074481000-0x0000000074483000-memory.dmp

          Filesize

          8KB

        • memory/1224-59-0x00000000003E0000-0x00000000003E2000-memory.dmp

          Filesize

          8KB

        • memory/1224-60-0x0000000000600000-0x0000000000602000-memory.dmp

          Filesize

          8KB

        • memory/1224-61-0x0000000000980000-0x0000000001A3A000-memory.dmp

          Filesize

          16.7MB

        • memory/1224-62-0x00000000003E0000-0x00000000003E2000-memory.dmp

          Filesize

          8KB

        • memory/1224-63-0x0000000000600000-0x0000000000602000-memory.dmp

          Filesize

          8KB

        • memory/1224-64-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB