Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27-02-2024 09:44

General

  • Target

    a8d70882b3b3ff024c06336db0309bc4.xls

  • Size

    135KB

  • MD5

    a8d70882b3b3ff024c06336db0309bc4

  • SHA1

    cc15626fe6613e0550a97f9cb574a65a5180816a

  • SHA256

    3f2c0b00d9380b4d4de3ac6ce7398aa7d807783652442d84be7c5fe6200ad063

  • SHA512

    279492184ff711a43e47b6b267e8ea9b59c82cae9f72a38c5d18bc6d4d4f005388b7041de74bdd699a4bb4958e2fdffa0cd21ec2353234f9041799354a800650

  • SSDEEP

    1536:Gt44n0o4g0hmVnLziCdymRxoiKTM4O+Ky2fsqITzrWCBE+Mvi2ytWVbrzQ7ITkaJ:4aziCQ8WVbrzQ7ITkZYrjhJtXwy1H

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • Deletes itself 1 IoCs
  • 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
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 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\a8d70882b3b3ff024c06336db0309bc4.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1664
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1048
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:2024
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2388-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2388-1-0x0000000072B7D000-0x0000000072B88000-memory.dmp

    Filesize

    44KB

  • memory/2388-6-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-31-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-33-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-56-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-86-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-105-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-127-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-151-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-170-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-192-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-195-0x0000000072B7D000-0x0000000072B88000-memory.dmp

    Filesize

    44KB

  • memory/2388-215-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-217-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-216-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-219-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-247-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-266-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-292-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-311-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-340-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-341-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB

  • memory/2388-342-0x0000000005D80000-0x0000000005E80000-memory.dmp

    Filesize

    1024KB