Overview

overview

10

Static

static

Bruttotrkkenes.vbs

windows7-x64

7

Bruttotrkkenes.vbs

windows10-2004-x64

10

Sharing

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General

  • Target

    Bruttotrkkenes.vbs

  • Size

    193KB

  • Sample

    230120-kcq1xsfc3s

  • MD5

    df88bb66cf07e271ccb302345a7a10ea

  • SHA1

    bd264a4d6934077bbfacd3fed6ef33c208a3bb24

  • SHA256

    978c47eff37f0a6a36c883ff44d5a92fcfbcb679091ac4ad3bdc1dd3b8bbf08c

  • SHA512

    6a9ef5159fba37f0ce828a279580c1fbc1d06a06cae4b791aa6f51f4631c207177dbb9fced9712e77fef1276b1668b2e87e3649de1b8e6abb1c4073e2d47e457

  • SSDEEP

    6144:5x3QywdXgjxRajxV1D5fZIhmYSpqXJykD:/3Qe9R8V1D9ZIhmY1Jr

Score
10/10
guloaderdownloaderpersistence

Malware Config

Targets

    • Target

      Bruttotrkkenes.vbs

    • Size

      193KB

    • MD5

      df88bb66cf07e271ccb302345a7a10ea

    • SHA1

      bd264a4d6934077bbfacd3fed6ef33c208a3bb24

    • SHA256

      978c47eff37f0a6a36c883ff44d5a92fcfbcb679091ac4ad3bdc1dd3b8bbf08c

    • SHA512

      6a9ef5159fba37f0ce828a279580c1fbc1d06a06cae4b791aa6f51f4631c207177dbb9fced9712e77fef1276b1668b2e87e3649de1b8e6abb1c4073e2d47e457

    • SSDEEP

      6144:5x3QywdXgjxRajxV1D5fZIhmYSpqXJykD:/3Qe9R8V1D9ZIhmY1Jr

    Score
    10/10
    guloaderdownloaderpersistence

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks