Overview

overview

10

Static

static

10

.X0-lock_x86_64.elf

ubuntu-18.04-amd64

10

Sharing

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General

  • Target
    .X0-lock_x86_64.elf
  • Size 4.3MB
  • Sample260909-ezb8ds1yaw
  • SHA256 4c4543b1963b22fb4bdd039558c6f8ea913ada5c61f1b36637318804dec9f322
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
xmrigdefense_evasiondiscoveryexectionexecutionlinuxminerpersistenceprivilege_escalationupx

Malware Config

Targets

    • Target
      .X0-lock_x86_64.elf
    • Size 4.3MB
    • SHA256 4c4543b1963b22fb4bdd039558c6f8ea913ada5c61f1b36637318804dec9f322
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexectionexecutionxmrigminerpersistenceprivilege_escalationupx

    • Family: xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

      minerxmrig

    • Modifies the dynamic linker configuration file

      Malware can modify the configuration file of the dynamic linker to preload malicous libraries with every executed process.

      exectionpersistenceprivilege_escalationdefense_evasion

    • XMRig Miner payload

      miner

    • Executes dropped EXE

    • Creates/modifies Cron job

      Cron allows running tasks on a schedule, and is commonly used for malware persistence.

      executionpersistenceprivilege_escalation

    • Creates/modifies environment variables

      Creating/modifying environment variables is a common persistence mechanism.

      persistenceprivilege_escalationdefense_evasion

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

      discovery

    • Modifies systemd

      Adds/ modifies systemd service files. Likely to achieve persistence.

      persistenceprivilege_escalation

    • Write file to user bin folder

      persistence

    • Modifies Bash startup script

      persistence

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Cron

1
T1053.003

Shared Modules

1
T1129

Persistence

Boot or Logon Autostart Execution

2
T1547

XDG Autostart Entries

1
T1547.013

Create or Modify System Process

1
T1543

Systemd Service

1
T1543.002

Event Triggered Execution

1
T1546

Unix Shell Configuration Modification

1
T1546.004

Hijack Execution Flow

2
T1574

Dynamic Linker Hijacking

1
T1574.006

Path Interception by PATH Environment Variable

1
T1574.007

Scheduled Task/Job

1
T1053

Cron

1
T1053.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

XDG Autostart Entries

1
T1547.013

Create or Modify System Process

1
T1543

Systemd Service

1
T1543.002

Event Triggered Execution

1
T1546

Unix Shell Configuration Modification

1
T1546.004

Hijack Execution Flow

2
T1574

Dynamic Linker Hijacking

1
T1574.006

Path Interception by PATH Environment Variable

1
T1574.007

Scheduled Task/Job

1
T1053

Cron

1
T1053.003

Defense Evasion

Hijack Execution Flow

2
T1574

Dynamic Linker Hijacking

1
T1574.006

Path Interception by PATH Environment Variable

1
T1574.007

Credential Access

Discovery

System Information Discovery

2
T1082

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks