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Overview

overview

10

Static

static

3

2024-05-14...ck.exe

windows7-x64

10

2024-05-14...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-05-14_cf7dde41a31b0f68bbea03db9424fd1d_virlock

  • Size

    658KB

  • Sample

    240514-c5jtbafg4t

  • MD5

    cf7dde41a31b0f68bbea03db9424fd1d

  • SHA1

    5fd4236f03e88cbb47fccedc700d0b2fa097876f

  • SHA256

    16ad3fc40792bc6ef4cc506fb770e5a107ce6052c4fb4db10d4c2f7c6652b2a7

  • SHA512

    8d8e12222a62d51934a6e612c535d76cbbbdb143d2072325dfe40f1603db76dee97e000b619d58a5957deb4d8c16c47ca632154d08ed7c465422bb6374b97bbe

  • SSDEEP

    12288:alo+3W95196qCz1LaOMpUicx+J9DxBf5L4t9:alPWyN5LYpPvDxBhL4t9

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-14_cf7dde41a31b0f68bbea03db9424fd1d_virlock

    • Size

      658KB

    • MD5

      cf7dde41a31b0f68bbea03db9424fd1d

    • SHA1

      5fd4236f03e88cbb47fccedc700d0b2fa097876f

    • SHA256

      16ad3fc40792bc6ef4cc506fb770e5a107ce6052c4fb4db10d4c2f7c6652b2a7

    • SHA512

      8d8e12222a62d51934a6e612c535d76cbbbdb143d2072325dfe40f1603db76dee97e000b619d58a5957deb4d8c16c47ca632154d08ed7c465422bb6374b97bbe

    • SSDEEP

      12288:alo+3W95196qCz1LaOMpUicx+J9DxBf5L4t9:alPWyN5LYpPvDxBhL4t9

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (64) 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
    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