Overview

overview

10

Static

static

3

test.exe

windows7-x64

10

test.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    test.exe

  • Size

    3.2MB

  • Sample

    241229-fs7amatlaq

  • MD5

    b04b6f1b897e829ff58dc99f18be1a8a

  • SHA1

    9a99cc16e540e341655a259650caf58ec14956ac

  • SHA256

    962da1faf888b28b2ec26fd1ea547fecfb2edc1cf30e64328b18309e98448b11

  • SHA512

    7e2f9c691d23288fddad062f4c3e197ab84010c03418088b10060a5c720d34b153937e68b72ba13a6819eefd0d15c8a3e280fb1bbb4771d22566c7fb6838f07b

  • SSDEEP

    24576:4Imw98okVgela0as5CqLVO7XJCjkD3N0HRAjSUpZr3y2amHY6MdefqTXeZty61ky:OL5ljasaUoZat81wua7bUScTLTXO+2N

Score
10/10
avoslockerdefense_evasiondiscoveryevasionexecutionimpactransomwaretrojanupx

Malware Config

Targets

    • Target

      test.exe

    • Size

      3.2MB

    • MD5

      b04b6f1b897e829ff58dc99f18be1a8a

    • SHA1

      9a99cc16e540e341655a259650caf58ec14956ac

    • SHA256

      962da1faf888b28b2ec26fd1ea547fecfb2edc1cf30e64328b18309e98448b11

    • SHA512

      7e2f9c691d23288fddad062f4c3e197ab84010c03418088b10060a5c720d34b153937e68b72ba13a6819eefd0d15c8a3e280fb1bbb4771d22566c7fb6838f07b

    • SSDEEP

      24576:4Imw98okVgela0as5CqLVO7XJCjkD3N0HRAjSUpZr3y2amHY6MdefqTXeZty61ky:OL5ljasaUoZat81wua7bUScTLTXO+2N

    Score
    10/10
    avoslockerdefense_evasiondiscoveryevasionexecutionimpactransomwareupxtrojan

    • 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 (10382) files with added filename extension

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

      ransomware

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks