Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    24/09/2021, 17:31

General

  • Target

    specification-730729009.xls

  • Size

    258KB

  • MD5

    18df8b279d3bb6c443eea9c9efc47636

  • SHA1

    03125e165dccb330c3bdbc92bab0bf275de626b4

  • SHA256

    9d4d08dd78894b65adc73fe96371f94437f902797fd5ce407aabc9937cd4a5c1

  • SHA512

    ad6bc0babfdb9d8cb92dee36ca2b7e024d52f5adef68f9307de24cbc139cd69369c2be878952b516c18fcc4b7f798e86e382a53f9a42fda77b6abd8ed16e20c6

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://ricardopiresfotografia.com/RpuaNlWy/host.html

xlm40.dropper

https://keysite.com.co/IQ3mbS6EF/host.html

xlm40.dropper

https://colegiobilinguepioxii.com.co/SYqvKoF4/host.html

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • 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 use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 21 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\specification-730729009.xls
    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:612
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
      2⤵
      • Process spawned unexpected child process
      PID:1104
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
      2⤵
      • Process spawned unexpected child process
      PID:816
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
      2⤵
      • Process spawned unexpected child process
      PID:392

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/392-65-0x0000000000140000-0x0000000000141000-memory.dmp

    Filesize

    4KB

  • memory/612-54-0x000000002F961000-0x000000002F964000-memory.dmp

    Filesize

    12KB

  • memory/612-55-0x0000000071B11000-0x0000000071B13000-memory.dmp

    Filesize

    8KB

  • memory/612-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/816-64-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/1104-58-0x0000000075651000-0x0000000075653000-memory.dmp

    Filesize

    8KB

  • memory/1104-59-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB