Overview

overview

9

Static

static

3

8455ba4d9c...66.exe

windows7-x64

9

8455ba4d9c...66.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    8455ba4d9cad9da5214405e8f4273e496f1906a62e865af4d94b2ebc3e424d66

  • Size

    139KB

  • Sample

    240419-3nj1vsae52

  • MD5

    bce6ea7ee92b235897a8973f78d8a1b9

  • SHA1

    56760532e7d95bd89a5cc6349626d82d2fff8c87

  • SHA256

    8455ba4d9cad9da5214405e8f4273e496f1906a62e865af4d94b2ebc3e424d66

  • SHA512

    cd2168ac7ae4bbe7d66aa31bacd70644cf94a07e088e3f7eaee23767bcab7876d7840c28e47edf27efc32d7ea83391016718c71da0bd8d1d48e8c773c41c6ecb

  • SSDEEP

    3072:nCSjGoLpWM6bblmjxaEjZ5itklrllnCrhY8fxJ:9XmRmJ4kB7nIhf

Score
9/10
persistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      8455ba4d9cad9da5214405e8f4273e496f1906a62e865af4d94b2ebc3e424d66

    • Size

      139KB

    • MD5

      bce6ea7ee92b235897a8973f78d8a1b9

    • SHA1

      56760532e7d95bd89a5cc6349626d82d2fff8c87

    • SHA256

      8455ba4d9cad9da5214405e8f4273e496f1906a62e865af4d94b2ebc3e424d66

    • SHA512

      cd2168ac7ae4bbe7d66aa31bacd70644cf94a07e088e3f7eaee23767bcab7876d7840c28e47edf27efc32d7ea83391016718c71da0bd8d1d48e8c773c41c6ecb

    • SSDEEP

      3072:nCSjGoLpWM6bblmjxaEjZ5itklrllnCrhY8fxJ:9XmRmJ4kB7nIhf

    Score
    9/10
    persistenceransomwarespywarestealer

    • Renames multiple (175) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Drops file in Drivers directory

    • Deletes itself

    • Executes dropped EXE

    • 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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    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

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks