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Overview

overview

10

Static

static

3

2024-05-10...ck.exe

windows7-x64

10

2024-05-10...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-05-10_8227145fd2cb70f9e2b1284a1e764b40_virlock

  • Size

    207KB

  • Sample

    240510-nrdkxsca8z

  • MD5

    8227145fd2cb70f9e2b1284a1e764b40

  • SHA1

    6a97aab07daa122dbae0469b64cdc027a1d94c7b

  • SHA256

    83a0f7343dbc04cdafab4ba4cbe7b3d1a38ea2cf6a63db04f3f5d23fd8ad2226

  • SHA512

    9abdbcae616d1661f603ef52590033c2634a5b47297ca9d22bab9cd989a4d1ddc1c9b97c016bcaedc59527b01b96a02de618ea107324f32d9878a5d9e45a17f5

  • SSDEEP

    6144:lWHsWT9gLQWr0ldD2bb4HT1t60fWf0QlIgK8/nnEv:lK9TEQWrcdD2bb4HT1FfWf0QlIhcnEv

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-10_8227145fd2cb70f9e2b1284a1e764b40_virlock

    • Size

      207KB

    • MD5

      8227145fd2cb70f9e2b1284a1e764b40

    • SHA1

      6a97aab07daa122dbae0469b64cdc027a1d94c7b

    • SHA256

      83a0f7343dbc04cdafab4ba4cbe7b3d1a38ea2cf6a63db04f3f5d23fd8ad2226

    • SHA512

      9abdbcae616d1661f603ef52590033c2634a5b47297ca9d22bab9cd989a4d1ddc1c9b97c016bcaedc59527b01b96a02de618ea107324f32d9878a5d9e45a17f5

    • SSDEEP

      6144:lWHsWT9gLQWr0ldD2bb4HT1t60fWf0QlIgK8/nnEv:lK9TEQWrcdD2bb4HT1FfWf0QlIhcnEv

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (55) 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 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