Overview

overview

9

Static

static

cfee2d1e4e...67.exe

windows7_x64

9

cfee2d1e4e...67.exe

windows10-2004_x64

9

Analysis

  • max time kernel
    112s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 14:25

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General

  • Target

    cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe

  • Size

    1.7MB

  • MD5

    fde7ae84cb218ddabbfbbffeac0cce14

  • SHA1

    251f033a47407fac551802866b8a2c829ed7b9c1

  • SHA256

    cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367

  • SHA512

    64fbd447595176955733a740df01deb45898123c50524146b869793bb358f17eeaba43d2182f5c16fb6cdd2e2848f30b8883ff7fda4348d047d5e8e0f3cdc730

Score
9/10
bootkitdiscoveryevasionpersistence

Malware Config

Signatures

  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Executes dropped EXE 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe
    "C:\Users\Admin\AppData\Local\Temp\cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\Users\Admin\AppData\Local\Temp\MyDiskPro\wMzAxSGZn.exe
      "C:\Users\Admin\AppData\Local\Temp\MyDiskPro\wMzAxSGZn.exe" TEw9aHR0cDovL21maWxlLnNpdGUvZC8qTk49dGhlLXNpbXMtNC1kZWx1eGUtZWRpdGlvbi50b3JyZW50KkZGPTEzMjMxKkFQST0qU0laRT0xMjMwMzQqTVU9aHR0cDovL21kaXMuZnVuL2wvKlNVPU15RGlzay5wcm8q
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Enumerates connected drives
      • Writes to the Master Boot Record (MBR)
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3196

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Discovery

Query Registry

8
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MyDiskPro\wMzAxSGZn.exe
    Filesize

    1.4MB

    MD5

    9a0541ea8737a6eb833b4d7f2a6ed633

    SHA1

    d7cf0332a3a4ee116b070061f4cc76141734a422

    SHA256

    a3176f27d1eb90ed92360db780cc33ef09040cf29b74fd974966948255ad83da

    SHA512

    461d7b48b187e8a0be8465d1592d9d3c6bb0b08b146eefa188082bbdb511d88c07cc013df45eee9bee1e1fbfe1d1d953401fe398269367be7a5296c530eac01a

    Download Submit
  • memory/3196-130-0x0000000000000000-mapping.dmp
    Download
  • memory/3196-134-0x0000000000A00000-0x0000000000A03000-memory.dmp
    Filesize

    12KB

    Download
  • memory/3196-135-0x0000000000400000-0x000000000092C000-memory.dmp
    Filesize

    5.2MB

    Download
  • memory/4624-132-0x0000000000400000-0x0000000000684000-memory.dmp
    Filesize

    2.5MB

    Download
  • memory/4624-133-0x00000000007E0000-0x00000000007E3000-memory.dmp
    Filesize

    12KB

    Download