Overview

overview

10

Static

static

8bf023f0bb...ae.exe

windows7-x64

10

8bf023f0bb...ae.exe

windows10-2004-x64

8

Sharing

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General

  • Target

    8bf023f0bbeff59bc887c3867b6214df0136171825141533c2c2a596ac4164ae

  • Size

    593KB

  • Sample

    221003-rfwh5sadc4

  • MD5

    0a891291ee714482f22145e5f0dc0f34

  • SHA1

    a3e39e670fc6b671334278f6ff2ab2a2d1f46ad1

  • SHA256

    8bf023f0bbeff59bc887c3867b6214df0136171825141533c2c2a596ac4164ae

  • SHA512

    f67040e3edf2eebb693b02a467934dc002f9f3d7556165576b6e4ada4507b4161adc651f46e648adb7578f8f69086d7bc5e089e0b198d934e59ef063d9bd7352

  • SSDEEP

    12288:VuBSP/amCQBJSpc/aaT9/gur79Yq63kfydqAKTE1qH:sA6QBwy/aI/gK79YH0FAgxH

Score
10/10
bootkitevasionpersistenceupx

Malware Config

Targets

    • Target

      8bf023f0bbeff59bc887c3867b6214df0136171825141533c2c2a596ac4164ae

    • Size

      593KB

    • MD5

      0a891291ee714482f22145e5f0dc0f34

    • SHA1

      a3e39e670fc6b671334278f6ff2ab2a2d1f46ad1

    • SHA256

      8bf023f0bbeff59bc887c3867b6214df0136171825141533c2c2a596ac4164ae

    • SHA512

      f67040e3edf2eebb693b02a467934dc002f9f3d7556165576b6e4ada4507b4161adc651f46e648adb7578f8f69086d7bc5e089e0b198d934e59ef063d9bd7352

    • SSDEEP

      12288:VuBSP/amCQBJSpc/aaT9/gur79Yq63kfydqAKTE1qH:sA6QBwy/aI/gK79YH0FAgxH

    Score
    10/10
    bootkitevasionpersistenceupx

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • 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