Overview

overview

8

Static

static

1

bc6a95af92...c5.exe

windows7-x64

8

bc6a95af92...c5.exe

windows10-2004-x64

8

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General

  • Target

    bc6a95af92d4684496a885e115a82cd55e7b3e1de86d66dc5bc375230f1406c5

  • Size

    491KB

  • Sample

    221203-h94beafa55

  • MD5

    857d2e4272eccd96e28c7763e5c3c052

  • SHA1

    b71bec9e5462f6ec423ea7249a1249ffc71643f0

  • SHA256

    bc6a95af92d4684496a885e115a82cd55e7b3e1de86d66dc5bc375230f1406c5

  • SHA512

    813cbaf493cd70a2465355763e852a056273f623f3d6bed3ba35504cc539bb26aecf735649eadb8f556671442a44fca131f0b9c786eabce82c9da0ac22ba8286

  • SSDEEP

    12288:zwpvRtrZhCbY1YruoOULwOp/fvshSOHqJXv:z4vv1wbY1YxvwsySOHC/

Score
8/10
bootkitevasionpersistencetrojanupx

Malware Config

Targets

    • Target

      bc6a95af92d4684496a885e115a82cd55e7b3e1de86d66dc5bc375230f1406c5

    • Size

      491KB

    • MD5

      857d2e4272eccd96e28c7763e5c3c052

    • SHA1

      b71bec9e5462f6ec423ea7249a1249ffc71643f0

    • SHA256

      bc6a95af92d4684496a885e115a82cd55e7b3e1de86d66dc5bc375230f1406c5

    • SHA512

      813cbaf493cd70a2465355763e852a056273f623f3d6bed3ba35504cc539bb26aecf735649eadb8f556671442a44fca131f0b9c786eabce82c9da0ac22ba8286

    • SSDEEP

      12288:zwpvRtrZhCbY1YruoOULwOp/fvshSOHqJXv:z4vv1wbY1YxvwsySOHC/

    Score
    8/10
    bootkitevasionpersistencetrojanupx

    • 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 whether UAC is enabled

      evasiontrojan

    • 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

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks