Overview

overview

10

Static

static

texte.dll

windows7_x64

9

texte.dll

windows10-2004_x64

10

Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20/05/2022, 10:51

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General

  • Target
    texte.dll
  • Size 1.3MB
  • Sample220520-mxt97aaef5
  • SHA256 07edd643a92f1611deb26f28cb1c9182dc525b773d0a3ffd8a4b66f9f39f2917
  • MD5 SHA1 SHA512
Score
9/10
evasion

Malware Config

Signatures

  • Enumerates VirtualBox registry keys 2 TTPs
    evasion
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
    evasion
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • 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.

    evasion
  • Suspicious behavior: EnumeratesProcesses 41 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\texte.dll,#1
    1⤵
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious behavior: EnumeratesProcesses
    PID:1092

Network

        MITRE ATT&CK Enterprise v6

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