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Resubmissions

11/11/2022, 08:08

221111-j1y6rscebm 10

12/05/2022, 21:09

220512-zzj88aabg5 10

11/05/2022, 17:34

220511-v5d7yahaan 10

Analysis

  • max time kernel
    167s
  • max time network
    196s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12/05/2022, 21:09

General

  • Target

    desk.dll

  • Size

    1.2MB

  • MD5

    b07d064220b48ac3b110e6ebe1e4f542

  • SHA1

    c3bb172894a4e0e1ecc93fcd1bd78450ab4ca195

  • SHA256

    25ccf19af5dac51ec76ce6da1d2958d5dee34e50e78938b187b627f8771317d1

  • SHA512

    d169d11b492e465e31fa98e4b185a2161e1ff739757f7e139f9c63605af3d9a15813a538801d569f75de02de26a243dd40b7d46d074ffda445dd70c1860e1c74

Score
9/10

Malware Config

Signatures

  • Enumerates VirtualBox registry keys 2 TTPs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 3 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\desk.dll,#1
    1⤵
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious behavior: EnumeratesProcesses
    PID:1336

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1336-130-0x00007FF910800000-0x00007FF910810000-memory.dmp

    Filesize

    64KB