Overview

overview

10

Static

static

3

NexiloNitroGen.exe

windows10-2004-x64

10

NexiloNitroGen.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    NexiloNitroGen.exe
  • Size 17.4MB
  • Sample260629-gzk7eaex7v
  • SHA256 405d3530a182a08a7c37ee0ee969eae34591a3cb01b5a9bc2d0357a7c62e458c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remus_stealerdiscoverypersistencepyinstallerspywarestealer

Malware Config

Extracted

Family

  • remus_stealer

C2

  • http://myrtler.biz:9549

  • http://carogra.biz:4219

  • http://youngel.biz:8768

Targets

    • Target
      NexiloNitroGen.exe
    • Size 17.4MB
    • SHA256 405d3530a182a08a7c37ee0ee969eae34591a3cb01b5a9bc2d0357a7c62e458c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryremus_stealerpersistencepyinstallerspywarestealer

    • Family: Remus

      Remus is a stealer written in C++.

      stealerremus_stealer

    • Downloads MZ/PE file

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

      persistence

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

1
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

Browser Information Discovery

1
T1217

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Command and Control

Exfiltration

Impact

Tasks