Overview

overview

10

Static

static

a7fd07dc0a...57.exe

windows7-x64

10

a7fd07dc0a...57.exe

windows10-2004-x64

8

Sharing

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General

  • Target

    a7fd07dc0abb12be563200627164211884534fda523606ac5eb17572f64b3657

  • Size

    426KB

  • Sample

    221201-ynx59sab5w

  • MD5

    d104ed6809cccf794135204478f634c2

  • SHA1

    e05a1cdc30127dd38be0db9afe5828c0f91d99c2

  • SHA256

    a7fd07dc0abb12be563200627164211884534fda523606ac5eb17572f64b3657

  • SHA512

    9ef7b8fa820073dbe208bde9742395e8e660b0313cab137e898d4cc52dec0103b6ca0da76a248363690e96de3a768589ea235840886baccf1dc9a4da697013dd

  • SSDEEP

    6144:SDhCdYx7WL5dNy0uewsL5iOjA+/g/vfV4xjhuoNiYQSRgJ7Ui71bhzYof:S8k7hZoL5iB+/g/VOsoxQ+871bR

Score
10/10
bootkitevasionpersistence

Malware Config

Targets

    • Target

      a7fd07dc0abb12be563200627164211884534fda523606ac5eb17572f64b3657

    • Size

      426KB

    • MD5

      d104ed6809cccf794135204478f634c2

    • SHA1

      e05a1cdc30127dd38be0db9afe5828c0f91d99c2

    • SHA256

      a7fd07dc0abb12be563200627164211884534fda523606ac5eb17572f64b3657

    • SHA512

      9ef7b8fa820073dbe208bde9742395e8e660b0313cab137e898d4cc52dec0103b6ca0da76a248363690e96de3a768589ea235840886baccf1dc9a4da697013dd

    • SSDEEP

      6144:SDhCdYx7WL5dNy0uewsL5iOjA+/g/vfV4xjhuoNiYQSRgJ7Ui71bhzYof:S8k7hZoL5iB+/g/VOsoxQ+871bR

    Score
    10/10
    bootkitevasionpersistence

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Writes to the Master Boot Record (MBR)

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

      bootkitpersistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

2
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Process Discovery

1
T1057

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks