Overview

overview

10

Static

static

1

1.sh

ubuntu-18.04-amd64

10

1.sh

debian-9-armhf

10

1.sh

debian-9-mips

10

1.sh

debian-9-mipsel

10

Sharing

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General

  • Target
    1.sh
  • Size 3KB
  • Sample250822-cap2vaal41
  • SHA256 3d2acd9571f1e62e42aaf6d34a320d96eb07a1d4b16cce9dc74885aeb0b03f4f
  • MD5 SHA1 SHA512
Score
10/10
miraiantivmbotnetcredential_accessdefense_evasiondiscoveryexecutionlinuxpersistenceupx

Malware Config

Targets

    • Target
      1.sh
    • Size 3KB
    • SHA256 3d2acd9571f1e62e42aaf6d34a320d96eb07a1d4b16cce9dc74885aeb0b03f4f
    • MD5 SHA1 SHA512
    Score
    10/10
    miraibotnetcredential_accessdefense_evasiondiscoverypersistenceupxantivmexecution

    • Mirai

      Mirai is a prevalent Linux malware infecting exposed network devices.

      botnetmirai

    • Mirai family

      mirai

    • File and Directory Permissions Modification

      Adversaries may modify file or directory permissions to evade defenses.

      defense_evasion

    • Executes dropped EXE

    • 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 init.d

      Adds/modifies system service, likely for persistence.

      persistence

    • Modifies rc script

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

      persistence

    • Reads process memory

      Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.

      credential_access

    • UPX packed file

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

      upx
    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Unix Shell

1
T1059.004

Persistence

Boot or Logon Autostart Execution

2
T1547

Boot or Logon Initialization Scripts

2
T1037

RC Scripts

2
T1037.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Boot or Logon Initialization Scripts

2
T1037

RC Scripts

2
T1037.004

Defense Evasion

File and Directory Permissions Modification

1
T1222

Linux and Mac File and Directory Permissions Modification

1
T1222.002

Virtualization/Sandbox Evasion

1
T1497

System Checks

1
T1497.001

Credential Access

OS Credential Dumping

1
T1003

Proc Filesystem

1
T1003.007

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

Command and Control

Exfiltration

Impact

Tasks