Overview

overview

10

Static

static

7

df35c3aa41...fa.exe

windows7_x64

10

df35c3aa41...fa.exe

windows10-2004_x64

10

Sharing

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General

  • Target
    df35c3aa4105063cb41f093ba12a22d3cb1258f6c2fedd9c8a68f033170ae9fa
  • Size 2.3MB
  • Sample220503-zhra7sehap
  • SHA256 df35c3aa4105063cb41f093ba12a22d3cb1258f6c2fedd9c8a68f033170ae9fa
  • MD5 SHA1 SHA512
Score
10/10
wastedlockerdiscoveryevasionexploitransomwarethemidatrojan

Malware Config

Targets

    • Target
      df35c3aa4105063cb41f093ba12a22d3cb1258f6c2fedd9c8a68f033170ae9fa
    • Size 2.3MB
    • SHA256 df35c3aa4105063cb41f093ba12a22d3cb1258f6c2fedd9c8a68f033170ae9fa
    • MD5 SHA1 SHA512
    Score
    10/10
    wastedlockerdiscoveryevasionexploitransomwarethemidatrojan

    • WastedLocker

      Ransomware family seen in the wild since May 2020.

      ransomwarewastedlocker

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

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

      evasion

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Possible privilege escalation attempt

      exploit

    • Checks BIOS information in registry

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

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks