Analysis

  • max time kernel
    160s
  • max time network
    111s
  • 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

    1aec76b21e94d6525078f78e4dd5c6fe6b4787f594af0de58f31ca81bddbaa52.exe

  • Size

    97KB

  • MD5

    2f44232de11de9f3e3f9d4e675cff81e

  • SHA1

    02998acc1e3095d996ea88df0d0db0864e7709d0

  • SHA256

    1aec76b21e94d6525078f78e4dd5c6fe6b4787f594af0de58f31ca81bddbaa52

  • SHA512

    468a81fbd03a8ec0517af0ebbba50f805ae4f915b61be3939f225b257f4c883eb56948a75e31fbb3db33f3f336ef5dcd19f773f5cbfccce79ac972fb2f5b5858

  • SSDEEP

    1536:jfqILBa1Z+0FLbmoIfQiDSusStOwlzkfrS:j1LBav+0FLOfQmMSi

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 20 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:1380
      • C:\Users\Admin\AppData\Local\Temp\1aec76b21e94d6525078f78e4dd5c6fe6b4787f594af0de58f31ca81bddbaa52.exe
        "C:\Users\Admin\AppData\Local\Temp\1aec76b21e94d6525078f78e4dd5c6fe6b4787f594af0de58f31ca81bddbaa52.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:1932
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1312
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1224

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/1932-54-0x0000000076831000-0x0000000076833000-memory.dmp

                Filesize

                8KB

              • memory/1932-55-0x0000000000630000-0x00000000016EA000-memory.dmp

                Filesize

                16.7MB

              • memory/1932-56-0x0000000000400000-0x0000000000412000-memory.dmp

                Filesize

                72KB

              • memory/1932-57-0x0000000000630000-0x00000000016EA000-memory.dmp

                Filesize

                16.7MB

              • memory/1932-58-0x00000000750F1000-0x00000000750F3000-memory.dmp

                Filesize

                8KB

              • memory/1932-59-0x00000000002A0000-0x00000000002A2000-memory.dmp

                Filesize

                8KB

              • memory/1932-60-0x0000000003010000-0x0000000003012000-memory.dmp

                Filesize

                8KB

              • memory/1932-61-0x0000000000630000-0x00000000016EA000-memory.dmp

                Filesize

                16.7MB

              • memory/1932-62-0x00000000002A0000-0x00000000002A2000-memory.dmp

                Filesize

                8KB

              • memory/1932-63-0x0000000003010000-0x0000000003012000-memory.dmp

                Filesize

                8KB

              • memory/1932-64-0x0000000000400000-0x0000000000412000-memory.dmp

                Filesize

                72KB