Overview

overview

10

Static

static

8

document-3...81.xls

windows7_x64

10

document-3...81.xls

windows10_x64

10

Analysis

  • max time kernel
    136s
  • max time network
    132s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    25-02-2021 03:31

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Report Analysis Logs

General

  • Target

    document-357925881.xls

  • Size

    90KB

  • MD5

    7e8de93e7c595ed3f0e9f88441f21f35

  • SHA1

    05528807c5a5df282bae695adbe546702d42ccc6

  • SHA256

    5bb5d73b43557fabe5887a9e6964c43d309135d52bca37d4b76d15c8d787da03

  • SHA512

    6683de3a933bf503a49ad7d37c18236ed14bae334bc8ecbe92405a9e443d75ac94f340f34cf5caf535d6b22b18770bb8432a247dfc704b6006c8d30c73ebc275

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.

  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

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\document-357925881.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4704
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\rieuro.vnt,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:4408

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/4408-7-0x0000000000000000-mapping.dmp
    Download
  • memory/4704-2-0x00007FF82F820000-0x00007FF82F830000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4704-3-0x00007FF82F820000-0x00007FF82F830000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4704-4-0x00007FF82F820000-0x00007FF82F830000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4704-5-0x00007FF853020000-0x00007FF853657000-memory.dmp
    Filesize

    6.2MB

    Download
  • memory/4704-6-0x00007FF82F820000-0x00007FF82F830000-memory.dmp
    Filesize

    64KB

    Download