Overview

overview

8

Static

static

1

bloodshed-...21.exe

windows7-x64

8

bloodshed-...21.exe

windows10-2004-x64

8

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General

  • Target

    bloodshed-dev-c_VWin-21.exe

  • Size

    1.7MB

  • Sample

    230930-edscgsaa39

  • MD5

    99a9fbd5fee72ce51585309390a46717

  • SHA1

    ff39c56312090a909c2c0c82629c552a3b252a98

  • SHA256

    833064195b0c96bce9a8c00dc95df6bd9fce1092c1260ba0e877810bfc44b0aa

  • SHA512

    97f9a98fb48c8281818163d3dbe66fa246e1fe6a5a67f15175419992b0ca389cbe086e457177c21ce9c99ff05a1e0b508812cdf30220090a438dd8c94f73c6b7

  • SSDEEP

    24576:R4nXubIQGyxbPV0db26Wmd0l4sv1Et9uGpckT52zedlq89Ws5uIzk5aM/phdO7:Rqe3f61mZSffPMWrQ0ZkA

Score
8/10
bootkitpersistence

Malware Config

Targets

    • Target

      bloodshed-dev-c_VWin-21.exe

    • Size

      1.7MB

    • MD5

      99a9fbd5fee72ce51585309390a46717

    • SHA1

      ff39c56312090a909c2c0c82629c552a3b252a98

    • SHA256

      833064195b0c96bce9a8c00dc95df6bd9fce1092c1260ba0e877810bfc44b0aa

    • SHA512

      97f9a98fb48c8281818163d3dbe66fa246e1fe6a5a67f15175419992b0ca389cbe086e457177c21ce9c99ff05a1e0b508812cdf30220090a438dd8c94f73c6b7

    • SSDEEP

      24576:R4nXubIQGyxbPV0db26Wmd0l4sv1Et9uGpckT52zedlq89Ws5uIzk5aM/phdO7:Rqe3f61mZSffPMWrQ0ZkA

    Score
    8/10
    bootkitpersistence

    • Downloads MZ/PE file

    • Adds Run key to start application

      persistence

    • Checks for any installed AV software in registry

    • 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

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Software Discovery

1
T1518

Security Software Discovery

1
T1518.001

System Information Discovery

2
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks