Overview

overview

10

Static

static

1

bb8d35012c...91.vbs

windows7-x64

10

bb8d35012c...91.vbs

windows10-2004-x64

10

Sharing

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General

  • Target

    bb8d35012cdd6408e23b9983549095e98a88c1ccf99fc447cb92bf9d6de71b91.vbs

  • Size

    13KB

  • Sample

    240523-cdzepahf2z

  • MD5

    693d91041a54a578ada0c38a77634ee9

  • SHA1

    13e0a6c85203356af7d11ff4a0e74a6b9637f466

  • SHA256

    bb8d35012cdd6408e23b9983549095e98a88c1ccf99fc447cb92bf9d6de71b91

  • SHA512

    110e25ec6a8f8cb52a3d8a21e01ae9e2b308276111a70cd2afd64e187b41fbbedf9365170bacd971b26ee17a62df4b2174dd2580bcdb18ed768a06d01d860ccb

  • SSDEEP

    192:lLZMMji78HauxUn+OKEtfuJkEF3UxO8OY7DIsRsTYEtoTP5CfQ6x7PwYVRWFo2Uj:DV8wtkyRi/aVvdb2ze

Score
10/10
guloaderdownloaderpersistence

Malware Config

Targets

    • Target

      bb8d35012cdd6408e23b9983549095e98a88c1ccf99fc447cb92bf9d6de71b91.vbs

    • Size

      13KB

    • MD5

      693d91041a54a578ada0c38a77634ee9

    • SHA1

      13e0a6c85203356af7d11ff4a0e74a6b9637f466

    • SHA256

      bb8d35012cdd6408e23b9983549095e98a88c1ccf99fc447cb92bf9d6de71b91

    • SHA512

      110e25ec6a8f8cb52a3d8a21e01ae9e2b308276111a70cd2afd64e187b41fbbedf9365170bacd971b26ee17a62df4b2174dd2580bcdb18ed768a06d01d860ccb

    • SSDEEP

      192:lLZMMji78HauxUn+OKEtfuJkEF3UxO8OY7DIsRsTYEtoTP5CfQ6x7PwYVRWFo2Uj:DV8wtkyRi/aVvdb2ze

    Score
    10/10
    guloaderdownloaderpersistence

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    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

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks