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Overview

overview

10

Static

static

8

quakbot_fi...d.xlsb

windows7-x64

10

quakbot_fi...d.xlsb

windows10-2004-x64

10

Analysis

  • max time kernel
    33s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05/03/2023, 18:59

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General

  • Target

    quakbot_final_unprotected_modified.xlsb

  • Size

    232KB

  • MD5

    322ff8c05e66a73cc08d5b6c42516688

  • SHA1

    6055b6a8e199148210fd89dda63c2fd370da05d0

  • SHA256

    ca9942948788e3ee645cab81b10713bc8f5a051bd00e6eb9be717b38d0a199ca

  • SHA512

    da9c5ef7a0a8db1beac329b98f0e1befa420558e932ee781975b1e1c96af955e3ff1c8e5f46b75557136a106ca2f43bce50d090a565f73507bf34f3b2b756af2

  • SSDEEP

    3072:16wcOaz6kqB/EsWcXCJGbtyntvHGiYMnIOwKSIYFUQRLmTDBwszHbcOQafZD2dd:16wh5nRXCw+DnIdFUKmTDBwsz7c1yDQd

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source

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
    adwarespyware
  • Modifies registry class 64 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 5 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\quakbot_final_unprotected_modified.xlsb
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C "echo test > C:\cvoVIZCVkvcfkc\flag.txt"
      2⤵
      • Process spawned unexpected child process
      PID:1196
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:2036
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x570
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1828
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\cvoVIZCVkvcfkc\flag.txt
      1⤵
      • Opens file in notepad (likely ransom note)
      PID:1644

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\cvoVIZCVkvcfkc\flag.txt
      Filesize

      7B

      MD5

      a55ab7512f0d0ff4527d898d06afd5c5

      SHA1

      b1b0f3993c24e223152a9a41242cdd6757754a86

      SHA256

      6722aeed5f5d8297de4eb2cba1c5abb900afe4a4cd64b10e2835463087936666

      SHA512

      f7fe4429179bdd4cd30177ce663960f153bb5ddd8d227befb66929281638ffbba65857b4b43a6065dc96238a2a0a9e5fcac4fe40ec987405f9956f78bd7f7e15

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    • memory/1504-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

      Download