Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    13-07-2020 20:00

General

  • Target

    SecuriteInfo.com.DOC.Kryptik.Q.17436.xls

  • Size

    303KB

  • MD5

    50d833a21db581f09239c26b5723376b

  • SHA1

    d11f201a327d253cc68836e39ca73ece51f2767b

  • SHA256

    6e650a4383b6094da81c5d909ea099d520b969348e7189d6b04b6cb5dffdf754

  • SHA512

    9f9be8e4688ae30360b5bcf50fc1307a569cc1cfdea443708c7a795b8bd4285a3c989ed7f2d773aef7647680f22f0f4e41fb346c552bb084dab2f0801e1885c7

Score
10/10

Malware Config

Signatures

  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Process spawned unexpected child process 1 IoCs

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

  • Suspicious use of WriteProcessMemory 2 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.DOC.Kryptik.Q.17436.xls"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of WriteProcessMemory
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:2536
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\WbMFNqE\DTXZRqG\fytiOXY.dll,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1760

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Replay Monitor

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Downloads

  • memory/1760-0-0x0000000000000000-mapping.dmp