Overview

overview

8

Static

static

bb792b4efe...9e.exe

windows7-x64

8

bb792b4efe...9e.exe

windows10-2004-x64

8

Sharing

Copy URL
Twitter E-mail

General

  • Target

    bb792b4efea109b74bfb7a366cf826d7a0999f34645008a4e486fc675ed0269e

  • Size

    300KB

  • Sample

    221203-gz1bbseg7w

  • MD5

    ea709ba90ef5f70dae427ed0dc742bd3

  • SHA1

    a3d2e899bd818e539d2465fefa900e3c86a22e18

  • SHA256

    bb792b4efea109b74bfb7a366cf826d7a0999f34645008a4e486fc675ed0269e

  • SHA512

    6ef7e6d5dd0117bdd8c537c8fe2e871d427aa61fc64ae86accbb9e732ef4502f0ff40d1c86d5802563e1e9c947b63f9fbc51654b9bb90235fa00bef5d2bb0351

  • SSDEEP

    6144:Fyb3UDwSpUl3bK2/sFV21Vp2K2wZiwGWLHrnYDA4R:TTUl3zsFsD2K2wZiXOr7K

Score
8/10
bootkitevasionpersistence

Malware Config

Targets

    • Target

      bb792b4efea109b74bfb7a366cf826d7a0999f34645008a4e486fc675ed0269e

    • Size

      300KB

    • MD5

      ea709ba90ef5f70dae427ed0dc742bd3

    • SHA1

      a3d2e899bd818e539d2465fefa900e3c86a22e18

    • SHA256

      bb792b4efea109b74bfb7a366cf826d7a0999f34645008a4e486fc675ed0269e

    • SHA512

      6ef7e6d5dd0117bdd8c537c8fe2e871d427aa61fc64ae86accbb9e732ef4502f0ff40d1c86d5802563e1e9c947b63f9fbc51654b9bb90235fa00bef5d2bb0351

    • SSDEEP

      6144:Fyb3UDwSpUl3bK2/sFV21Vp2K2wZiwGWLHrnYDA4R:TTUl3zsFsD2K2wZiXOr7K

    Score
    8/10
    bootkitevasionpersistence

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • 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 NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

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

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks