Overview

overview

7

Static

static

3

DoctorWeb.exe

windows7-x64

7

DoctorWeb.exe

windows10-2004-x64

7

Sharing

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General

  • Target

    DoctorWeb.exe

  • Size

    7.8MB

  • Sample

    240526-yyyjsaae6x

  • MD5

    1c33f964fbf5b3642d02e4b20ba6f2ac

  • SHA1

    dcec14364a4548ce394906487a37f98bb1d12198

  • SHA256

    10a45dc010df96cbd65bfd8a59e906ca5f98dd6f7541cf02bdfc17df8384bb8f

  • SHA512

    ea3268a85ff2dfe7c94c6eb670f4aa3a13ec3019cf47bbcfa7e31eaa48dea0c8ee7dd0ebd020785942063e8acee7e2df62cd0c1eadf46a0208ebea29e146462b

  • SSDEEP

    98304:Jqx1gyR0CwX6T036KJt6Oe2NhqCZao4+Axhy4V7FLEMUH82Z3dFRsFVsKtOep1eT:6WhwInbrIh17FFWZnR0VsAHndDNc7T

Score
7/10
bootkitpersistence

Malware Config

Targets

    • Target

      DoctorWeb.exe

    • Size

      7.8MB

    • MD5

      1c33f964fbf5b3642d02e4b20ba6f2ac

    • SHA1

      dcec14364a4548ce394906487a37f98bb1d12198

    • SHA256

      10a45dc010df96cbd65bfd8a59e906ca5f98dd6f7541cf02bdfc17df8384bb8f

    • SHA512

      ea3268a85ff2dfe7c94c6eb670f4aa3a13ec3019cf47bbcfa7e31eaa48dea0c8ee7dd0ebd020785942063e8acee7e2df62cd0c1eadf46a0208ebea29e146462b

    • SSDEEP

      98304:Jqx1gyR0CwX6T036KJt6Oe2NhqCZao4+Axhy4V7FLEMUH82Z3dFRsFVsKtOep1eT:6WhwInbrIh17FFWZnR0VsAHndDNc7T

    Score
    7/10
    bootkitpersistence

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

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

Resource Development

Reconnaissance

Tasks