Overview

overview

9

Static

static

28ddbbbdfc...48.exe

windows7-x64

9

28ddbbbdfc...48.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    28ddbbbdfc0977cdc35c762ec797ab0291cd6d6a3fd21f007cf6625020dfa748

  • Size

    1.2MB

  • Sample

    221124-ny59hsbg44

  • MD5

    1f7fb27ec7f6a69f5e79c68e852a68e5

  • SHA1

    c6e8c77d07be503d4f20b6229594fbcc45ce90bc

  • SHA256

    28ddbbbdfc0977cdc35c762ec797ab0291cd6d6a3fd21f007cf6625020dfa748

  • SHA512

    265213e361f439a2f0cbe71384f5ea965bdc6a1f8ba86eeb054038a35381ba9fb2f895ef5cf94318cd48fe081abc3c596b85033ba7d2e05f2363083be120adcb

  • SSDEEP

    24576:RxGjLiwDOU3uhJbyUUFrlAxRwD6KzLYOcux8eaJOPKlsMX:qiUehJbyBlAxRAbNcG8dhKG

Score
9/10
bootkitevasionpersistence

Malware Config

Targets

    • Target

      28ddbbbdfc0977cdc35c762ec797ab0291cd6d6a3fd21f007cf6625020dfa748

    • Size

      1.2MB

    • MD5

      1f7fb27ec7f6a69f5e79c68e852a68e5

    • SHA1

      c6e8c77d07be503d4f20b6229594fbcc45ce90bc

    • SHA256

      28ddbbbdfc0977cdc35c762ec797ab0291cd6d6a3fd21f007cf6625020dfa748

    • SHA512

      265213e361f439a2f0cbe71384f5ea965bdc6a1f8ba86eeb054038a35381ba9fb2f895ef5cf94318cd48fe081abc3c596b85033ba7d2e05f2363083be120adcb

    • SSDEEP

      24576:RxGjLiwDOU3uhJbyUUFrlAxRwD6KzLYOcux8eaJOPKlsMX:qiUehJbyBlAxRAbNcG8dhKG

    Score
    9/10
    bootkitevasionpersistence

    • Looks for VirtualBox Guest Additions in registry

      evasion

    • Executes dropped EXE

    • Looks for VMWare Tools registry key

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Checks for any installed AV software in registry

    • Writes to the Master Boot Record (MBR)

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

      bootkitpersistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Security Software Discovery

1
T1063

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks