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Overview

overview

10

Static

static

3

2024-03-13...ck.exe

windows7-x64

10

2024-03-13...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-03-13_e9633438e807624d5befa71903f1b54b_virlock

  • Size

    138KB

  • Sample

    240313-jkw2gahh53

  • MD5

    e9633438e807624d5befa71903f1b54b

  • SHA1

    c8a377d0459db18a999c814ed67384d7291f66e9

  • SHA256

    fd7519c5a8ce2d5441e1d2864306b7f3ab3f04c5825d61d2683d877dcdbc32d0

  • SHA512

    167798b5ab5cc7363d6c1a78ac1308153278ea3e13c3d0f0b9a16a7e52f1d0b144dff4e4b9f4d4d24af96601ecc09ee4a7fe2fc8a76ae883bca508dd75d1c04b

  • SSDEEP

    3072:sLlUivwSMHNuv/jUrDKPvAqD2odKJqA+j0XXaXBjlX1pZ/H2jPYRDTX:YobHIIvKPvAqD2odK0b0ufTpy2DT

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-13_e9633438e807624d5befa71903f1b54b_virlock

    • Size

      138KB

    • MD5

      e9633438e807624d5befa71903f1b54b

    • SHA1

      c8a377d0459db18a999c814ed67384d7291f66e9

    • SHA256

      fd7519c5a8ce2d5441e1d2864306b7f3ab3f04c5825d61d2683d877dcdbc32d0

    • SHA512

      167798b5ab5cc7363d6c1a78ac1308153278ea3e13c3d0f0b9a16a7e52f1d0b144dff4e4b9f4d4d24af96601ecc09ee4a7fe2fc8a76ae883bca508dd75d1c04b

    • SSDEEP

      3072:sLlUivwSMHNuv/jUrDKPvAqD2odKJqA+j0XXaXBjlX1pZ/H2jPYRDTX:YobHIIvKPvAqD2odK0b0ufTpy2DT

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (79) 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