Overview

overview

10

Static

static

3

2024-05-22...ck.exe

windows7-x64

10

2024-05-22...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-22_abd3b304e76ba880d70e40878803bc16_virlock

  • Size

    204KB

  • Sample

    240522-w1vjssbg71

  • MD5

    abd3b304e76ba880d70e40878803bc16

  • SHA1

    71b6adf3696fe9c55d4f2c7a702178281064d5c4

  • SHA256

    b43447c9b8bd1ffe55553e946271b73b4fcc1bef86b88694aaecdc21c415d832

  • SHA512

    a774fb6e61524cc263adaa77d02cb05eeacafa1edd6e4859c3362fb191d41d17be14698ee5b9043ed8fd9e809cecbe1924f2aaadc4bd17d3a445d88d9ad498f6

  • SSDEEP

    3072:WyeMPVmBxiGGGGGGGGGGGGGGG2GGGGGGGGGGGGGGG2GGGGGGGGGGGGGGG2GGGGGi:WvMPVK6ad//XCUQsH+g23Ow7qtlmt

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-22_abd3b304e76ba880d70e40878803bc16_virlock

    • Size

      204KB

    • MD5

      abd3b304e76ba880d70e40878803bc16

    • SHA1

      71b6adf3696fe9c55d4f2c7a702178281064d5c4

    • SHA256

      b43447c9b8bd1ffe55553e946271b73b4fcc1bef86b88694aaecdc21c415d832

    • SHA512

      a774fb6e61524cc263adaa77d02cb05eeacafa1edd6e4859c3362fb191d41d17be14698ee5b9043ed8fd9e809cecbe1924f2aaadc4bd17d3a445d88d9ad498f6

    • SSDEEP

      3072:WyeMPVmBxiGGGGGGGGGGGGGGG2GGGGGGGGGGGGGGG2GGGGGGGGGGGGGGG2GGGGGi:WvMPVK6ad//XCUQsH+g23Ow7qtlmt

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (85) 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.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks