Overview

overview

10

Static

static

8

document-2...66.xls

windows7_x64

10

document-2...66.xls

windows10_x64

10

Analysis

  • max time kernel
    136s
  • max time network
    128s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    12-03-2021 20:57

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General

  • Target

    document-251662366.xls

  • Size

    138KB

  • MD5

    5abb8307c0d57c2ba30f26f71c1d0ac1

  • SHA1

    90b996dc1fb787d5bba8cbf9d96a7c9c503c30bb

  • SHA256

    73a585f5da2c288e302dfabe378092b595d94ea7aaacf5b7758fd54c558bd4bb

  • SHA512

    9850a56e29c5bf945a8b3a724bf88aa7c8b2dd09b637060c2a7b77d4ba25908d5e8077e860b49a070cde598b6fa8e0a5eef8f01f7e5d443fdc95ab31d22e9441

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-251662366.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:1036
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\zfbfg.ere,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:3508

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/1036-2-0x00007FFC119D0000-0x00007FFC119E0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/1036-3-0x00007FFC119D0000-0x00007FFC119E0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/1036-4-0x00007FFC119D0000-0x00007FFC119E0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/1036-5-0x00007FFC34F80000-0x00007FFC355B7000-memory.dmp
    Filesize

    6.2MB

    Download
  • memory/1036-6-0x00007FFC119D0000-0x00007FFC119E0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/3508-7-0x0000000000000000-mapping.dmp
    Download