Overview

overview

10

Static

static

7

arm4-20240...16.elf

debian-9-armhf

10

Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    06-07-2024 03:17

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General

  • Target

    arm4-20240706-0316.elf

  • Size

    65KB

  • MD5

    8eb3f9fd0821ec7676448d4e5c417df3

  • SHA1

    2dac2708cbdc188ef3cfa881f02c1467825fe0d9

  • SHA256

    f3d8bc4b5c3dc2b7bd4df079aad66f146c73b34dbfca3412be17016aeeea547e

  • SHA512

    f256b4a506e2dee9310eaa466a1432378a1819b3043d6af7829217d079ba55ec092e048d85a82d037bf1b3103150aa087c2db87688014afcb605f68cba9cf630

  • SSDEEP

    1536:t5akHBIPK02c2+u7tqd+CE39QXfUR3Lpga9UnDeuDyl+faXz2UURCyZQQkjBbti:3Hyn23+uRqEC5fELSa9CWPaUURx1kjFg

Score
10/10
miraibotnetbotnetdiscovery

Malware Config

Extracted

Family

mirai

Botnet

BOTNET

C2

scan.yerco.xyz

Signatures

  • Mirai

    Mirai is a prevalent Linux malware infecting exposed network devices.

    botnetmirai
  • Contacts a large (209670) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

    discovery
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

    discovery
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

    Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

  • Unexpected DNS network traffic destination 44 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Writes file to system bin folder 1 TTPs 1 IoCs
  • Changes its process name 1 IoCs
  • Enumerates kernel/hardware configuration 1 TTPs 3 IoCs

    Reads contents of /sys virtual filesystem to enumerate system information.

  • Reads runtime system information 1 IoCs

    Reads data from /proc virtual filesystem.

Processes

  • /tmp/arm4-20240706-0316.elf
    /tmp/arm4-20240706-0316.elf
    1⤵
    • Modifies Watchdog functionality
    • Writes file to system bin folder
    • Changes its process name
    • Enumerates kernel/hardware configuration
    • Reads runtime system information
    PID:661

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Hijack Execution Flow

1
T1574

Privilege Escalation

Hijack Execution Flow

1
T1574

Defense Evasion

Impair Defenses

1
T1562

Hijack Execution Flow

1
T1574

Credential Access

Discovery

Network Service Discovery

2
T1046

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • memory/661-1-0x00008000-0x00031f38-memory.dmp
    Download