Overview

overview

10

Static

static

123a5fd056...ea.exe

windows7_x64

10

123a5fd056...ea.exe

windows10-2004_x64

10

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General

  • Target

    123a5fd056af259f61651556412318f30af49d435a442acc4c79def21aa172ea

  • Size

    3.7MB

  • Sample

    220507-zf1f4aeaa7

  • MD5

    f5adcc295d58d72e8a3dc5068b89241b

  • SHA1

    a8420f69ae8b8cf95fafe56d4c16b9f01e83e741

  • SHA256

    123a5fd056af259f61651556412318f30af49d435a442acc4c79def21aa172ea

  • SHA512

    fc4256f79c4c637bd8d0e0eee245ee9a6b789b173314db9f7fc5352e068357cd8fda1f5638af9d0467c3b8f380e8536d9996dc86c74ea84d3703928d4968a651

Score
10/10
dharmaevasionpersistenceransomware

Malware Config

Targets

    • Target

      123a5fd056af259f61651556412318f30af49d435a442acc4c79def21aa172ea

    • Size

      3.7MB

    • MD5

      f5adcc295d58d72e8a3dc5068b89241b

    • SHA1

      a8420f69ae8b8cf95fafe56d4c16b9f01e83e741

    • SHA256

      123a5fd056af259f61651556412318f30af49d435a442acc4c79def21aa172ea

    • SHA512

      fc4256f79c4c637bd8d0e0eee245ee9a6b789b173314db9f7fc5352e068357cd8fda1f5638af9d0467c3b8f380e8536d9996dc86c74ea84d3703928d4968a651

    Score
    10/10
    dharmaevasionpersistenceransomware

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

      ransomwaredharma

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

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

    • Drops startup file

    • Identifies Wine through registry keys

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

      evasion

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks