Overview

overview

9

Static

static

7

YS_External_V2.exe

windows7-x64

9

YS_External_V2.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    YS_External_V2.exe

  • Size

    23.5MB

  • Sample

    230326-kr7l8aga29

  • MD5

    49bd07fcd35833d498db74a30e8da0c4

  • SHA1

    695998aa01dcb54bbb8f3432d3eca4e39e84ee9b

  • SHA256

    863ef4a6cc53d9ba762c43b053c60ff854ed5bb2a635d49ffa166569e8a8996c

  • SHA512

    752ef105d0cc9196278f6fc9dbe40c6a940ae5543fc03962cfaa45c6e0e7183c6cfb7950d823131b01e6928214b408602bf888fcac531c7f8ed99ebeb07a21fa

  • SSDEEP

    393216:nsL9KDKh8hHNQu6UDB5w0Lp/juLBqyBRhfvSOMQ0569yjRZ:nsLMDxy5cgqxjuwyBjAjo9k

Score
9/10
evasionpersistencethemidatrojan

Malware Config

Targets

    • Target

      YS_External_V2.exe

    • Size

      23.5MB

    • MD5

      49bd07fcd35833d498db74a30e8da0c4

    • SHA1

      695998aa01dcb54bbb8f3432d3eca4e39e84ee9b

    • SHA256

      863ef4a6cc53d9ba762c43b053c60ff854ed5bb2a635d49ffa166569e8a8996c

    • SHA512

      752ef105d0cc9196278f6fc9dbe40c6a940ae5543fc03962cfaa45c6e0e7183c6cfb7950d823131b01e6928214b408602bf888fcac531c7f8ed99ebeb07a21fa

    • SSDEEP

      393216:nsL9KDKh8hHNQu6UDB5w0Lp/juLBqyBRhfvSOMQ0569yjRZ:nsLMDxy5cgqxjuwyBjAjo9k

    Score
    9/10
    evasionthemidatrojanpersistence

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Downloads MZ/PE file

    • Sets service image path in registry

      persistence

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Executes dropped EXE

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks