Overview

overview

10

Static

static

1

Bolbi.vbs

windows10-2004-x64

10

Sharing

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General

  • Target

    Bolbi.vbs

  • Size

    46KB

  • Sample

    240625-twhnbszhpc

  • MD5

    99ec3237394257cb0b5c24affe458f48

  • SHA1

    5300e68423da9712280e601b51622c4b567a23a4

  • SHA256

    ec17f950f6ee9c0c237d93bc0b766aa6e2ab458c70320b534212043128177b51

  • SHA512

    af2394d18f672def6d5d7081def759093759205aac0390ca03591c58c15a02e463a68b583b6fc28ef1368922b4bd5f9072d570ee97a955250a478cdb093500cb

  • SSDEEP

    384:m71ThEgivcqpCghtpCAhDnVLri57VurlgRL1xCLI05ej+1DPpUo/i/vFCbWZkraB:m7BGV95hIG1/d49gsCDsl

Score
10/10
defense_evasiondiscoveryevasionexploitpersistenceransomwaretrojan

Malware Config

Targets

    • Target

      Bolbi.vbs

    • Size

      46KB

    • MD5

      99ec3237394257cb0b5c24affe458f48

    • SHA1

      5300e68423da9712280e601b51622c4b567a23a4

    • SHA256

      ec17f950f6ee9c0c237d93bc0b766aa6e2ab458c70320b534212043128177b51

    • SHA512

      af2394d18f672def6d5d7081def759093759205aac0390ca03591c58c15a02e463a68b583b6fc28ef1368922b4bd5f9072d570ee97a955250a478cdb093500cb

    • SSDEEP

      384:m71ThEgivcqpCghtpCAhDnVLri57VurlgRL1xCLI05ej+1DPpUo/i/vFCbWZkraB:m7BGV95hIG1/d49gsCDsl

    Score
    10/10
    defense_evasiondiscoveryevasionexploitpersistenceransomwaretrojan

    • UAC bypass

      evasiontrojan

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

      persistence

    • Disables RegEdit via registry modification

      evasion

    • Disables cmd.exe use via registry modification

      evasion

    • Event Triggered Execution: Image File Execution Options Injection

      persistence

    • Possible privilege escalation attempt

      exploit

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Impair Defenses: Safe Mode Boot

      defense_evasion

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Enumerates connected drives

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

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Active Setup

1
T1547.014

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Active Setup

1
T1547.014

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

Safe Mode Boot

1
T1562.009

Modify Registry

6
T1112

File and Directory Permissions Modification

1
T1222

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Resource Development

Reconnaissance

Tasks