Overview

overview

10

Static

static

8

Complaint_...1.xlsm

windows7_x64

10

Complaint_...1.xlsm

windows10_x64

10

Analysis

  • max time kernel
    136s
  • max time network
    130s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    19-01-2021 16:31

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General

  • Target

    Complaint_Copy_1639255636_01192021.xlsm

  • Size

    25KB

  • MD5

    658de46decf3be284b481a25816532fa

  • SHA1

    f43a176ecfe9112e03942d4c2b68494d26ebf653

  • SHA256

    7cb4ff8749a82b3dd145f2dfc8f2d5817fcde9359de2ad4a3c4b2a7cb0c45870

  • SHA512

    ddb09d573a9c4d03f3e2258d4db8304cb35c7ed406c336e9e94226d0b2f95ceb4e646365202be3e1e3847089564a79db9b5a1fab0b9d5c6f7226456f4d3e9b88

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.

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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 14 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\Complaint_Copy_1639255636_01192021.xlsm"
    1⤵
    • Enumerates connected drives
    • 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:4772
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\AppData\Roaming\KKEEDTT.DEEREDTTDVD,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:4204

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/4204-7-0x0000000000000000-mapping.dmp
    Download
  • memory/4772-2-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4772-3-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4772-4-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4772-5-0x00007FFF454A0000-0x00007FFF45AD7000-memory.dmp
    Filesize

    6.2MB

    Download
  • memory/4772-6-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp
    Filesize

    64KB

    Download