Overview

overview

9

Static

static

5

x86_64.elf

ubuntu-18.04-amd64

9

Sharing

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General

  • Target
    x86_64.elf
  • Size 77KB
  • Sample261017-ppm71seh79
  • SHA256 e0bd5e6d810e5316aca109bc7733e348c762ecd52ac4fec9d85b2b0a9efb9485
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
antivmdefense_evasiondiscoveryexectionexecutionlinuxpersistenceprivilege_escalationupx

Malware Config

Targets

    • Target
      x86_64.elf
    • Size 77KB
    • SHA256 e0bd5e6d810e5316aca109bc7733e348c762ecd52ac4fec9d85b2b0a9efb9485
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    antivmdefense_evasiondiscoveryexectionexecutionpersistenceprivilege_escalationupx

    • 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

    • Deletes itself

    • Deletes journal logs

      Deletes systemd journal logs. Likely to evade detection.

      defense_evasion

    • Deletes system logs

      Deletes log file which contains global system messages. Adversaries may delete system logs to minimize their footprint.

      defense_evasion

    • Modifies the /etc/hosts DNS resolution file

      Modifying the /etc/hosts name-resolution file changes IP routing, which can facilitate traffic hijacking or the blocking of (security update) endpoints.

    • Creates/modifies Cron job

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

      executionpersistenceprivilege_escalation

    • Deletes log files

      Deletes log files on the system.

      defense_evasion

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

      discovery

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Modifies rc script

      Adding/modifying system rc scripts is a common persistence mechanism.

      persistence

    • Modifies systemd

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

      persistenceprivilege_escalation

    • 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

Command and Scripting Interpreter

1
T1059

Unix Shell

1
T1059.004

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

Boot or Logon Initialization Scripts

1
T1037

RC Scripts

1
T1037.004

Create or Modify System Process

1
T1543

Systemd Service

1
T1543.002

Hijack Execution Flow

1
T1574

Dynamic Linker Hijacking

1
T1574.006

Scheduled Task/Job

1
T1053

Cron

1
T1053.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

XDG Autostart Entries

1
T1547.013

Boot or Logon Initialization Scripts

1
T1037

RC Scripts

1
T1037.004

Create or Modify System Process

1
T1543

Systemd Service

1
T1543.002

Hijack Execution Flow

1
T1574

Dynamic Linker Hijacking

1
T1574.006

Scheduled Task/Job

1
T1053

Cron

1
T1053.003

Defense Evasion

Hijack Execution Flow

1
T1574

Dynamic Linker Hijacking

1
T1574.006

Indicator Removal

3
T1070

Clear Linux or Mac System Logs

3
T1070.002

Virtualization/Sandbox Evasion

1
T1497

System Checks

1
T1497.001

Credential Access

Adversary-in-the-Middle

1
T1557

Discovery

System Network Configuration Discovery

2
T1016

Internet Connection Discovery

1
T1016.001

System Network Connections Discovery

1
T1049

Virtualization/Sandbox Evasion

1
T1497

System Checks

1
T1497.001

Lateral Movement

Collection

Adversary-in-the-Middle

1
T1557

Command and Control

Exfiltration

Impact

Tasks