Overview

overview

10

Static

static

3

testing.exe

windows7-x64

10

testing.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    testing.exe

  • Size

    1.3MB

  • Sample

    241225-qypb4svjdr

  • MD5

    af7a3708906e1ba0d51e43ce64e72b95

  • SHA1

    266af0471cdb6c1e7f682da899c4539abc52e46a

  • SHA256

    5277b6dfc55feb2002a93bc92a535360e29b738fb333db5f19be94d1c18b3e52

  • SHA512

    989fe2856a3c21d91b70bc2f207b34d05af22d35aaaec2315d991839939c916bd83e4f5849ec289b9b68799ac96b2b041354758c1af967a3717bcdcfe1994892

  • SSDEEP

    24576:cImw98okVgela0as5CqLVO7XJCjkD3N0HRAWRiDBN:qL5ljasaU2DBN

Score
10/10
avoslockerdefense_evasiondiscoveryevasionexecutionimpactransomware

Malware Config

Targets

    • Target

      testing.exe

    • Size

      1.3MB

    • MD5

      af7a3708906e1ba0d51e43ce64e72b95

    • SHA1

      266af0471cdb6c1e7f682da899c4539abc52e46a

    • SHA256

      5277b6dfc55feb2002a93bc92a535360e29b738fb333db5f19be94d1c18b3e52

    • SHA512

      989fe2856a3c21d91b70bc2f207b34d05af22d35aaaec2315d991839939c916bd83e4f5849ec289b9b68799ac96b2b041354758c1af967a3717bcdcfe1994892

    • SSDEEP

      24576:cImw98okVgela0as5CqLVO7XJCjkD3N0HRAWRiDBN:qL5ljasaU2DBN

    Score
    10/10
    avoslockerdefense_evasiondiscoveryevasionexecutionimpactransomware

    • Avoslocker Ransomware

      Avoslocker is a relatively new ransomware, that was observed in late June and early July, 2021.

      ransomwareavoslocker

    • Avoslocker family

      avoslocker

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (10408) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

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

    • Executes dropped EXE

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks