Overview

overview

10

Static

static

1

b4396a1b7b...c6.exe

windows7-x64

10

b4396a1b7b...c6.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b4396a1b7b2ce99c06b6ded9918a646b7a49684b51180b9acec9e5d08b0104c6

  • Size

    865KB

  • Sample

    221128-fk9qsacb2s

  • MD5

    2e3a8fd340ca2235f8580e5991b49e43

  • SHA1

    953ecc01fa7e53ac230f0722580f8813c0985c85

  • SHA256

    b4396a1b7b2ce99c06b6ded9918a646b7a49684b51180b9acec9e5d08b0104c6

  • SHA512

    b4a4669ac0a32708f2a878216d32acb9110f9922f104f55bbcdde3f7df03d4656d8cb360ab2a21fbfd737b63b771db95b72ebe475d313a7eee9f8fa6db28cc97

  • SSDEEP

    24576:2xQXj3EOteS501b1JffL0CPf/ohmEVS25DgOh3+:TXwOASOJffLdJd25Dh3+

Score
10/10
bootkitdiscoverypersistencephishingupx

Malware Config

Targets

    • Target

      b4396a1b7b2ce99c06b6ded9918a646b7a49684b51180b9acec9e5d08b0104c6

    • Size

      865KB

    • MD5

      2e3a8fd340ca2235f8580e5991b49e43

    • SHA1

      953ecc01fa7e53ac230f0722580f8813c0985c85

    • SHA256

      b4396a1b7b2ce99c06b6ded9918a646b7a49684b51180b9acec9e5d08b0104c6

    • SHA512

      b4a4669ac0a32708f2a878216d32acb9110f9922f104f55bbcdde3f7df03d4656d8cb360ab2a21fbfd737b63b771db95b72ebe475d313a7eee9f8fa6db28cc97

    • SSDEEP

      24576:2xQXj3EOteS501b1JffL0CPf/ohmEVS25DgOh3+:TXwOASOJffLdJd25Dh3+

    Score
    10/10
    bootkitdiscoverypersistencephishingupx

    • Detected phishing page

      phishing

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • UPX packed file

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

      upx

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • 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

    • Drops file in System32 directory

    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

3
T1112

Install Root Certificate

1
T1130

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks