MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4804240c1a0547c1b2a11e020c87f27cc86eba76ab724c536bad0b3afd8b0fae. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Mirai


Vendor detections: 11


Intelligence 11 IOCs YARA 3 File information Comments

SHA256 hash: 4804240c1a0547c1b2a11e020c87f27cc86eba76ab724c536bad0b3afd8b0fae
SHA3-384 hash: f61aab37e3522eff2c8e0b47076b5043b56f1e81ca3b23c4ced9c098924673c7430ae32cabb10892f3909b836986380f
SHA1 hash: a9f91d8e44e96114a05c210eb6c457f285b86508
MD5 hash: 2c1180dd5c60384156c024019e87a47a
humanhash: yellow-artist-paris-cardinal
File name:ecco.arm7
Download: download sample
Signature Mirai
File size:110'284 bytes
First seen:2025-12-04 21:17:27 UTC
Last seen:2025-12-04 22:34:40 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:nzxSvngbsVNE/MJwnB6mYyLf5L1tDQMppLBS:zgvngwTCMJwnWyD5L1zppLc
TLSH T191B3123BBD255972DA719372AE880B41F1410C7CE0E572BA7C700B0665A5B887C7DB3A
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :110'284 bytes
File size (de-compressed) :332'849 bytes
Format:linux/arm
Unpacked file: 15b65716d6044566c43046a0dfff7cb699890dd5ea4b8bc120b72e38d3f7394e

Intelligence


File Origin
# of uploads :
2
# of downloads :
77
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-04T17:32:00Z UTC
Last seen:
2025-12-04T20:28:00Z UTC
Hits:
~100
Result
Threat name:
Mirai, Gafgyt
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Connects to many ports of the same IP (likely port scanning)
Detected Mirai
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Sample is packed with UPX
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Suricata IDS alerts for network traffic
Uses known network protocols on non-standard ports
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1826830 Sample: ecco.arm7.elf Startdate: 04/12/2025 Architecture: LINUX Score: 100 54 156.158.50.39 airtel-tz-asTZ Tanzania United Republic of 2->54 56 113.180.48.220 VNPT-AS-VNVNPTCorpVN Viet Nam 2->56 58 98 other IPs or domains 2->58 66 Suricata IDS alerts for network traffic 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Detected Mirai 2->70 72 5 other signatures 2->72 12 ecco.arm7.elf 2->12         started        signatures3 process4 process5 14 ecco.arm7.elf 12->14         started        process6 16 ecco.arm7.elf 14->16         started        file7 48 /etc/init.d/sysd, POSIX 16->48 dropped 60 Sample tries to set files in /etc globally writable 16->60 62 Drops files in suspicious directories 16->62 64 Sample tries to persist itself using System V runlevels 16->64 20 ecco.arm7.elf 16->20         started        23 ecco.arm7.elf sh 16->23         started        signatures8 process9 file10 50 /usr/Bin), ELF 20->50 dropped 25 ecco.arm7.elf 20->25         started        27 ecco.arm7.elf sh 20->27         started        29 sh cp 23->29         started        process11 process12 31 ecco.arm7.elf 25->31         started        33 ecco.arm7.elf 25->33         started        35 ecco.arm7.elf 25->35         started        43 1005 other processes 25->43 37 sh crontab 27->37         started        41 sh 27->41         started        file13 52 /var/spool/cron/crontabs/tmp.P1bmQ4, ASCII 37->52 dropped 74 Sample tries to persist itself using cron 37->74 76 Executes the "crontab" command typically for achieving persistence 37->76 45 sh crontab 41->45         started        signatures14 process15 signatures16 78 Executes the "crontab" command typically for achieving persistence 45->78
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-12-04 21:18:26 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet:lzrd botnet defense_evasion discovery execution persistence privilege_escalation upx
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
Changes its process name
UPX packed file
Creates/modifies Cron job
Enumerates running processes
Modifies init.d
Modifies rc script
Writes file to system bin folder
Deletes Audit logs
Deletes journal logs
Modifies Watchdog functionality
Contacts a large (310676) amount of remote hosts
Creates a large amount of network flows
Mirai
Mirai family
Malware Config
C2 Extraction:
draft22.redirectme.net
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Author:RandomMalware

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 4804240c1a0547c1b2a11e020c87f27cc86eba76ab724c536bad0b3afd8b0fae

(this sample)

  
Delivery method
Distributed via web download

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