Overview

overview

10

Static

static

Bolbi.vbs

windows7-x64

10

Bolbi.vbs

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    Bolbi.vbs

  • Size

    46KB

  • Sample

    220929-mnm5hsaec5

  • MD5

    99ec3237394257cb0b5c24affe458f48

  • SHA1

    5300e68423da9712280e601b51622c4b567a23a4

  • SHA256

    ec17f950f6ee9c0c237d93bc0b766aa6e2ab458c70320b534212043128177b51

  • SHA512

    af2394d18f672def6d5d7081def759093759205aac0390ca03591c58c15a02e463a68b583b6fc28ef1368922b4bd5f9072d570ee97a955250a478cdb093500cb

  • SSDEEP

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

Score
10/10
discoveryevasionexploitpersistenceransomwaretrojan

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
    discoveryevasionexploitpersistenceransomwaretrojan

    • UAC bypass

      evasiontrojan

    • Blocklisted process makes network request

    • Disables cmd.exe use via registry modification

      evasion

    • Modifies Installed Components in the registry

      persistence

    • Possible privilege escalation attempt

      exploit

    • Sets file execution options in registry

      persistence

    • Checks computer location settings

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

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

3
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

7
T1112

File Permissions Modification

1
T1222

Install Root Certificate

1
T1130

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

6
T1082

Peripheral Device Discovery

2
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Tasks