Overview

overview

8

Static

static

4bf6806b7f...b4.exe

windows7-x64

8

4bf6806b7f...b4.exe

windows10-2004-x64

8

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General

  • Target

    4bf6806b7f2144b75632d9163b9e1da763d92872c7a4ca0f89017e1c13df43b4

  • Size

    819KB

  • Sample

    221003-bn7ndaadb3

  • MD5

    091675fc7b4c7806023eaccfe27caf2b

  • SHA1

    7603e97f7076dfd3bc01de04176357f74f86345f

  • SHA256

    4bf6806b7f2144b75632d9163b9e1da763d92872c7a4ca0f89017e1c13df43b4

  • SHA512

    6ca45dfcb08845e1e3475070be171ce4a328d618428e6e1dcf7212c3bf1e8fd3eb2277f9d6cc2d805ff418772f540f6df0e3f53d0fe7e79912c22000f096df65

  • SSDEEP

    12288:v7Xnn6YD41EDjrKOp/yQaOoikVYQedOzOYspvGS8kZehMU6b3FSMTmRFYdq7AWbf:TXIYrMQaOoDDldS1H3MMTSSdqR33

Score
8/10
bootkitpersistence

Malware Config

Targets

    • Target

      4bf6806b7f2144b75632d9163b9e1da763d92872c7a4ca0f89017e1c13df43b4

    • Size

      819KB

    • MD5

      091675fc7b4c7806023eaccfe27caf2b

    • SHA1

      7603e97f7076dfd3bc01de04176357f74f86345f

    • SHA256

      4bf6806b7f2144b75632d9163b9e1da763d92872c7a4ca0f89017e1c13df43b4

    • SHA512

      6ca45dfcb08845e1e3475070be171ce4a328d618428e6e1dcf7212c3bf1e8fd3eb2277f9d6cc2d805ff418772f540f6df0e3f53d0fe7e79912c22000f096df65

    • SSDEEP

      12288:v7Xnn6YD41EDjrKOp/yQaOoikVYQedOzOYspvGS8kZehMU6b3FSMTmRFYdq7AWbf:TXIYrMQaOoDDldS1H3MMTSSdqR33

    Score
    8/10
    bootkitpersistence

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks