Overview

overview

10

Static

static

3

2024-04-28...ck.exe

windows7-x64

10

2024-04-28...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-28_d2829eaa302752c1ef1021897fe3df64_virlock

  • Size

    140KB

  • Sample

    240428-p2t64agb75

  • MD5

    d2829eaa302752c1ef1021897fe3df64

  • SHA1

    b168248172e6129f3c2d7b3e5d0d38ed690cf9b7

  • SHA256

    124f638b4ab0671b7627f5734995353f80fa2e80a33f21f769234bdcf5f62a09

  • SHA512

    591be90630f984d95eb380b095a49ec9e26130207101b4625831ee5d93ee3efcd6aa7e9b01e5b52a3fcc600a81e2c51f094e0dda2630e02f4414058e6f838d4e

  • SSDEEP

    3072:1ub6CWlrCX4bsEbd8q4tG95rVcgzAIuakadXax2AiZeKvoxs6X:Ab6sInbZrpc8Pk6feeoxz

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_d2829eaa302752c1ef1021897fe3df64_virlock

    • Size

      140KB

    • MD5

      d2829eaa302752c1ef1021897fe3df64

    • SHA1

      b168248172e6129f3c2d7b3e5d0d38ed690cf9b7

    • SHA256

      124f638b4ab0671b7627f5734995353f80fa2e80a33f21f769234bdcf5f62a09

    • SHA512

      591be90630f984d95eb380b095a49ec9e26130207101b4625831ee5d93ee3efcd6aa7e9b01e5b52a3fcc600a81e2c51f094e0dda2630e02f4414058e6f838d4e

    • SSDEEP

      3072:1ub6CWlrCX4bsEbd8q4tG95rVcgzAIuakadXax2AiZeKvoxs6X:Ab6sInbZrpc8Pk6feeoxz

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (80) 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

    • 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 Matrix ATT&CK v13

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

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

4
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks