Overview

overview

10

Static

static

8

case_detai...0.xlsm

windows7_x64

10

case_detai...0.xlsm

windows10_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    20-07-2021 07:39

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General

  • Target

    case_details-6944520.xlsm

  • Size

    117KB

  • MD5

    a6defb9f78196e1ea77c534207bdbd3a

  • SHA1

    112f8b629e90f1496a1ad017711c429f54780fe8

  • SHA256

    6baf865ab65913c374ee5bb4c765f7705f2a80d853d23d75e08810b5cf71d5a6

  • SHA512

    b65aeb3f3097cae369621387b790be40a3cff2d30114e114098d03faa3828e63f4148040dc114d722ed0c83571717aa08e35e54016b5615dfb882cfd6453f541

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://185.209.160.61/2.php

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\case_details-6944520.xlsm"
    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:636
    • C:\Windows\SYSTEM32\regsvr32.exe
      regsvr32 -slient ..\reyytutrutr.dll
      2⤵
      • Process spawned unexpected child process
      PID:1896

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/636-114-0x00007FF718240000-0x00007FF71B7F6000-memory.dmp
    Filesize

    53.7MB

    Download
  • memory/636-115-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/636-116-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/636-117-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/636-118-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/636-121-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/636-122-0x00007FF8CD3E0000-0x00007FF8CE4CE000-memory.dmp
    Filesize

    16.9MB

    Download
  • memory/636-123-0x00007FF8CB4E0000-0x00007FF8CD3D5000-memory.dmp
    Filesize

    31.0MB

    Download
  • memory/1896-257-0x0000000000000000-mapping.dmp
    Download