Overview

overview

8

Static

static

1

Ambrosial.exe

windows10-1703-x64

8

Resubmissions

12-08-2023 03:46

230812-ebrceabh2s 7

06-04-2023 04:57

230406-flleksbd93 8

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General

  • Target

    Ambrosial.exe

  • Size

    15.9MB

  • Sample

    230406-flleksbd93

  • MD5

    596b0f4684d45de83c204967c06e48a3

  • SHA1

    933dc2dc29a17a9447c944289fed4f98e0eb5e5f

  • SHA256

    6ff53b8187d0d3e287ad9ce3da20eca4f9dd105a2e3421ca1ad73b533ec4b91a

  • SHA512

    8f50098d120d32a84347a8337dee27061a6914d66b951f930d491a81a9804317318f25f80467684fd4fecea6bccc6de38b2df3ee2742a54805f2cdb4413d3830

  • SSDEEP

    196608:64WxsIO2gfRMhSE8/Erd8QP+ih91qBpodTAIRq+2vBt:64WuIO2gfRMYbcr6QP391qBafC

Score
8/10
agilenetbootkitdiscoveryevasionpersistence

Malware Config

Targets

    • Target

      Ambrosial.exe

    • Size

      15.9MB

    • MD5

      596b0f4684d45de83c204967c06e48a3

    • SHA1

      933dc2dc29a17a9447c944289fed4f98e0eb5e5f

    • SHA256

      6ff53b8187d0d3e287ad9ce3da20eca4f9dd105a2e3421ca1ad73b533ec4b91a

    • SHA512

      8f50098d120d32a84347a8337dee27061a6914d66b951f930d491a81a9804317318f25f80467684fd4fecea6bccc6de38b2df3ee2742a54805f2cdb4413d3830

    • SSDEEP

      196608:64WxsIO2gfRMhSE8/Erd8QP+ih91qBpodTAIRq+2vBt:64WuIO2gfRMYbcr6QP391qBafC

    Score
    8/10
    agilenetbootkitdiscoveryevasionpersistence

    • Modifies Installed Components in the registry

      persistence

    • Stops running service(s)

      evasion

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

      agilenet

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • 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

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2
T1060

Modify Existing Service

1
T1031

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Impair Defenses

1
T1562

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks