Overview

overview

8

Static

static

1

StreamHelp...up.exe

windows7-x64

8

StreamHelp...up.exe

windows10-2004-x64

7

Sharing

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General

  • Target

    StreamHelpersSetup.exe

  • Size

    5.1MB

  • Sample

    230401-an8p1aef95

  • MD5

    204d43f3f04ab08863730428aef33a0e

  • SHA1

    9a13f8f7b230be2ab7eeb2b21240041e5209495f

  • SHA256

    ae1d2fc3c4a341973ebb044ca97551bfc03795b06a8fad6422306ab068d0b260

  • SHA512

    7555201978828c71006decbf09dad8ff4535fe572438fdc41ed0a990073bccca43525da1a6c639fb6a7313642dcde608a3440b7de68b158336da1aaf5b21a7d1

  • SSDEEP

    98304:VABCUgjLwvDqtrJwnN5xdnbzXzt4AM0faL6qutk1RsmVmjcJoO9VePFuLmho:iBx6qN5bnty0yLYtUyXcCO9VePamm

Score
8/10
bootkitevasionpersistenceransomware

Malware Config

Targets

    • Target

      StreamHelpersSetup.exe

    • Size

      5.1MB

    • MD5

      204d43f3f04ab08863730428aef33a0e

    • SHA1

      9a13f8f7b230be2ab7eeb2b21240041e5209495f

    • SHA256

      ae1d2fc3c4a341973ebb044ca97551bfc03795b06a8fad6422306ab068d0b260

    • SHA512

      7555201978828c71006decbf09dad8ff4535fe572438fdc41ed0a990073bccca43525da1a6c639fb6a7313642dcde608a3440b7de68b158336da1aaf5b21a7d1

    • SSDEEP

      98304:VABCUgjLwvDqtrJwnN5xdnbzXzt4AM0faL6qutk1RsmVmjcJoO9VePFuLmho:iBx6qN5bnty0yLYtUyXcCO9VePamm

    Score
    8/10
    bootkitevasionpersistenceransomware

    • Disables Task Manager via registry modification

      evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Tasks