MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99cfc86014a1ebf75f80aa2e8786883048f360a9051ad5d50b9e5e9b8881a555. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99cfc86014a1ebf75f80aa2e8786883048f360a9051ad5d50b9e5e9b8881a555
SHA3-384 hash: 1b0438766aa5dee6d0db05a27d04669367a7305ea492b8b13209efd5d9552e279f86ba5d37f87e752fe5b5db1e849d8b
SHA1 hash: edd2b880b2a8d6464a72d5f240bbed347f83dd9e
MD5 hash: 2cd91a681ee16e3857cc17e99b33a24a
humanhash: grey-twelve-july-oven
File name:ecco.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:199'272 bytes
First seen:2025-12-02 15:32:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:iamHFjTFf1kZUYXdVMFHo8qF69Zjv9TNbudVlXgE5FYDt0uNiD6:i9HFnFf14JdVMFHo8Uoz4w6ItxNiD6
TLSH T13F146D85F243F5F6DC620534106FEB325E72B976613BDE86D3ACDA32AC01642891B6DC
telfhash t130711cf72a6d2bee33f4da11c31a2b20fd06c5776950356906a353d922b7e026670c76
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 gafgyt mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 d218e19014e272aa7becbae8c1aa94ebeca15a0b53d31acc90fee931a0cb988e
File size (compressed) :73'912 bytes
File size (de-compressed) :199'272 bytes
Format:linux/i386
Packed file: d218e19014e272aa7becbae8c1aa94ebeca15a0b53d31acc90fee931a0cb988e

Intelligence

File Origin
# of uploads :
1
# of downloads :
27
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Detection(s):
Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29524.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30395.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9999-14.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29001.LCM.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135870-0
Create hunting rule

Unix.Dropper.Mirai-7135881-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7135996-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136017-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Dropper.Mirai-7136033-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-9807962-0
Create hunting rule

Unix.Trojan.Mirai-9808381-0
Create hunting rule

Unix.Trojan.Mirai-9853183-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Unix.Dropper.Mirai-9977145-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Unix.Trojan.Mirai-10028515-0
Create hunting rule

Unix.Trojan.Mirai-10058414-0
Create hunting rule

Unix.Packed.Botnet-6566031-0
Create hunting rule

Unix.Dropper.Botnet-6566040-0
Create hunting rule

Unix.Trojan.Gafgyt-6748839-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/692f06c9d8757a20497b6707/reports/af8bb15e-50f2-49af-be5f-5a0a388eb605/overview
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/04d7dc33-b3a7-425b-826e-cd69eb7edbbc
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1824574
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1824574 Sample: ecco.x86.elf Startdate: 02/12/2025 Architecture: LINUX Score: 100 76 197.241.192.237 movicel-asAO Angola 2->76 78 84.63.241.221, 23 VODANETInternationalIP-BackboneofVodafoneDE Germany 2->78 80 98 other IPs or domains 2->80 82 Suricata IDS alerts for network traffic 2->82 84 Malicious sample detected (through community Yara rule) 2->84 86 Antivirus detection for dropped file 2->86 88 5 other signatures 2->88 12 ecco.x86.elf 2->12         started        signatures3 process4 process5 14 ecco.x86.elf 12->14         started        16 ecco.x86.elf 12->16         started        process6 18 ecco.x86.elf 14->18         started        file7 68 /etc/init.d/sysd, POSIX 18->68 dropped 90 Sample tries to set files in /etc globally writable 18->90 92 Drops files in suspicious directories 18->92 94 Sample tries to persist itself using System V runlevels 18->94 22 ecco.x86.elf 18->22         started        24 ecco.x86.elf 18->24         started        27 ecco.x86.elf sh 18->27         started        signatures8 process9 file10 29 ecco.x86.elf 22->29         started        31 ecco.x86.elf sh 22->31         started        33 ecco.x86.elf 22->33         started        41 5 other processes 22->41 70 /usr/Bin), ELF 24->70 dropped 35 ecco.x86.elf 24->35         started        37 ecco.x86.elf sh 24->37         started        39 sh cp 27->39         started        process11 process12 57 792 other processes 29->57 43 sh crontab 31->43         started        47 sh 31->47         started        49 ecco.x86.elf 33->49         started        51 ecco.x86.elf 33->51         started        59 3 other processes 33->59 61 195 other processes 35->61 53 sh crontab 37->53         started        55 sh 37->55         started        file13 72 /var/spool/cron/crontabs/tmp.wLq19N, ASCII 43->72 dropped 96 Sample tries to persist itself using cron 43->96 98 Executes the "crontab" command typically for achieving persistence 43->98 63 sh crontab 47->63         started        74 /var/spool/cron/crontabs/tmp.0uemiE, ASCII 53->74 dropped 66 sh crontab 55->66         started        signatures14 process15 signatures16 100 Executes the "crontab" command typically for achieving persistence 63->100
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/99cfc86014a1ebf75f80aa2e8786883048f360a9051ad5d50b9e5e9b8881a555
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/99cfc86014a1ebf75f80aa2e8786883048f360a9051ad5d50b9e5e9b8881a555/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-12-02 15:33:36 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=thh4qyauuhv7ox4avixipbuigbepgyfjaunnlviltzpjxcebuvkq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd botnet defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/251202-szdm4svkbv/
Behaviour
Reads runtime system information
Changes its process name
Creates/modifies Cron job
Enumerates running processes
Modifies init.d
Modifies rc script
Writes file to system bin folder
Modifies Watchdog functionality
Contacts a large (48458) amount of remote hosts
Creates a large amount of network flows
Mirai
Mirai family
Malware Config
C2 Extraction:
draft21.redirectme.net
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_fa3ad9d0 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_93fc3657 Linux_Trojan_Mirai_804f8e7c Linux_Trojan_Mirai_99d78950 Linux_Trojan_Mirai_a68e498c Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3 Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/6ae09be0-3aeb-45bf-9859-53fdb293dba0
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.29
Link:
https://yomi.yoroi.company/submissions/99cfc86014a1ebf75f80aa2e8786883048f360a9051ad5d50b9e5e9b8881a555

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:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:iot_req_metachar
Create hunting rule
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_1ac392ca
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_804f8e7c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_93fc3657
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_99d78950
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_a68e498c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_fa3ad9d0
Create hunting rule
Author:Elastic Security
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:VPNFilterStage3PluginTor
Create hunting rule

File information

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

Web download

Mirai

sh 478a079faeecad0d70309471f496de500e2eb20fc6ec38321e159a90873011ba

Mirai

elf d218e19014e272aa7becbae8c1aa94ebeca15a0b53d31acc90fee931a0cb988e

Mirai

elf 99cfc86014a1ebf75f80aa2e8786883048f360a9051ad5d50b9e5e9b8881a555

(this sample)

  
Dropped by
SHA256 d218e19014e272aa7becbae8c1aa94ebeca15a0b53d31acc90fee931a0cb988e
  
URLhaus
https://urlhaus.abuse.ch/url/3723388/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 425c1cc3df984072ef921ad9ac671928

Comments