Overview

overview

10

Static

static

10

3785ab4734...4f.dll

windows7_x64

1

3785ab4734...4f.dll

windows10-2004_x64

7

Analysis

  • max time kernel
    91s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-06-2022 23:04

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General

  • Target

    3785ab47343608f1ef6defe047a7b495f9b24538b6dac2d1b87f8bcf2027624f.dll

  • Size

    164KB

  • MD5

    8f286ca2abef24f99a5d9132699cf104

  • SHA1

    dce33985bce7cab1bb1fbc44f16e8c9ceaa0a84a

  • SHA256

    3785ab47343608f1ef6defe047a7b495f9b24538b6dac2d1b87f8bcf2027624f

  • SHA512

    a877401f5f905e7f8636279be05f27056bfedbcc88cf4632e54df3f3e0979e9381a6a2bd5e44f134d1864f902dfc49296d7831dad6c44366a5ec74bfbfbe93f6

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3785ab47343608f1ef6defe047a7b495f9b24538b6dac2d1b87f8bcf2027624f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4920
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3785ab47343608f1ef6defe047a7b495f9b24538b6dac2d1b87f8bcf2027624f.dll,#1
      2⤵
      • Checks computer location settings
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3376
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
          PID:3432
    • C:\Windows\system32\wbem\unsecapp.exe
      C:\Windows\system32\wbem\unsecapp.exe -Embedding
      1⤵
        PID:2504

      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

      3
      T1082

      Peripheral Device Discovery

      1
      T1120

      Lateral Movement

      Collection

      Exfiltration

      Command and Control

      Impact

      Replay Monitor

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      Downloads

      • memory/3376-130-0x0000000000000000-mapping.dmp
        Download
      • memory/3432-131-0x0000000000000000-mapping.dmp
        Download