Overview

overview

10

Static

static

10

2026-10-04...op.exe

windows10-2004-x64

10

2026-10-04...op.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-10-04_984b7a339fb33f8873912debc884f5a4_elex_rhadamanthys_stop
  • Size 819KB
  • Sample261005-jtlxvsxcng
  • SHA256 3a768faaab039ad74c4102646fab75d982fd5b361b93d86e5c751129d24d6e74
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
expiroadwarebackdoorcredential_accessdiscoverypersistenceprivilege_escalationspywarestealer

Malware Config

Targets

    • Target
      2026-10-04_984b7a339fb33f8873912debc884f5a4_elex_rhadamanthys_stop
    • Size 819KB
    • SHA256 3a768faaab039ad74c4102646fab75d982fd5b361b93d86e5c751129d24d6e74
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    adwarebackdoorcredential_accessdiscoveryexpiropersistenceprivilege_escalationspywarestealer

    • Expiro payload

      backdoor

    • Family: Expiro, m0yv

      Expiro aka m0yv is a multi-functional backdoor written in C++.

      backdoorexpiro

    • Detects executables packed with VMProtect.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Modifies system executable filetype association

      persistence

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

      credential_accessstealer

    • Drops Chrome extension

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

2
T1546

Change Default File Association

1
T1546.001

Component Object Model Hijacking

1
T1546.015

Privilege Escalation

Event Triggered Execution

2
T1546

Change Default File Association

1
T1546.001

Component Object Model Hijacking

1
T1546.015

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

1
T1012

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks