Overview

overview

10

Static

static

3

2024-09-21...ck.exe

windows7-x64

10

2024-09-21...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-09-21_3818031e2e7d66ca3fcd45bba9c6ee65_virlock

  • Size

    254KB

  • Sample

    240921-a8t3caxemq

  • MD5

    3818031e2e7d66ca3fcd45bba9c6ee65

  • SHA1

    a4f698ab6624718f6f1651828c6ee6b8e603a31e

  • SHA256

    d353d67e3fe0674d810a9277e70442de1b35d27025383bd8277a979b0f6ce0f1

  • SHA512

    fe3db1eb4d0ece98f2bd1453242e28451fd18b0d46555d616a1f0bdd9a31a5aa4f053ef978ac7443b8561e72e111b7aa37e28513bf2967c72235f02a6f6d222c

  • SSDEEP

    6144:NDGIODfLm5lgU5akCQg5kiq44WO0BGYoKgPZpMIEuKdSFtto2:NJ35lZ7+Siq4RO0BGYoTyxxuty2

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-09-21_3818031e2e7d66ca3fcd45bba9c6ee65_virlock

    • Size

      254KB

    • MD5

      3818031e2e7d66ca3fcd45bba9c6ee65

    • SHA1

      a4f698ab6624718f6f1651828c6ee6b8e603a31e

    • SHA256

      d353d67e3fe0674d810a9277e70442de1b35d27025383bd8277a979b0f6ce0f1

    • SHA512

      fe3db1eb4d0ece98f2bd1453242e28451fd18b0d46555d616a1f0bdd9a31a5aa4f053ef978ac7443b8561e72e111b7aa37e28513bf2967c72235f02a6f6d222c

    • SSDEEP

      6144:NDGIODfLm5lgU5akCQg5kiq44WO0BGYoKgPZpMIEuKdSFtto2:NJ35lZ7+Siq4RO0BGYoTyxxuty2

    Score
    10/10
    discoveryevasionpersistencespywarestealertrojanransomware

    • 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.

    • 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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks