MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff7e5a42ffd58ac5b3d31535d2ca099e8b60107a18f62e25c8ecb9c004d0815b. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ff7e5a42ffd58ac5b3d31535d2ca099e8b60107a18f62e25c8ecb9c004d0815b
SHA3-384 hash: cde82818132eb4d944f274b8d2b7295ba83690fc7cff72145a74115a5ff7a074a5083f8778428bf5b4f99d16a562f8a3
SHA1 hash: 902c795e66c468ac8654ef562dd63a3a7891fb3b
MD5 hash: 5cce78e2f379ac53c072acc697a0647f
humanhash: yankee-south-indigo-georgia
File name:fentarm4k
Download: download sample
Signature Mirai
Create hunting rule
File size:87'828 bytes
First seen:2026-01-10 14:35:27 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:f/j0/6kl4xYbppotkWZQN41VHAV+JJ3bnwKY1/OxZdNvD:f/j0/jhbYlZa4hAwJV+xK7D
TLSH T188834B51BC815B12C6C112BBFA6E428D332613A8D3EE7217DD21AF2577CB51B0E7B641
telfhash t1b1511cf7dfbd1adc27cac304818e615daafc34a92f016156de1d7b4f9942181b06e817
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
113
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Link:
https://research.acce.ciphertechsolutions.com/results/8c702133-25d3-4506-b5a7-4a3b2807f70b/
Detection(s):
Unix.Dropper.Mirai-7135890-0
Create hunting rule

Unix.Dropper.Mirai-7135939-0
Create hunting rule

Unix.Dropper.Mirai-7136025-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai rust
Link:
https://www.filescan.io/uploads/696263bb07ef5fa68e83c014/reports/59a4453f-0f8c-4810-ba19-72f8092b42c4/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-10T12:48:00Z UTC
Last seen:
2026-01-10T16:03:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.ba HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/ff7e5a42ffd58ac5b3d31535d2ca099e8b60107a18f62e25c8ecb9c004d0815b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/beb4188c-e1eb-4017-877b-e161e3b002a9
Behavior Graph:
Download SVG
%3 guuid=d22db6ce-1600-0000-df56-3cb4570e0000 pid=3671 /usr/bin/sudo guuid=459c0bd1-1600-0000-df56-3cb4600e0000 pid=3680 /tmp/sample.bin guuid=d22db6ce-1600-0000-df56-3cb4570e0000 pid=3671->guuid=459c0bd1-1600-0000-df56-3cb4600e0000 pid=3680 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eb4f6f6f-599c-4fbb-9581-aedffeb0b27b
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1848000
Signature
Antivirus / Scanner detection for submitted sample
Deletes system log files
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1848000 Sample: fentarm4k.elf Startdate: 10/01/2026 Architecture: LINUX Score: 64 23 87.121.112.123, 36234, 666 NETERRA-ASBG Bulgaria 2->23 25 daisy.ubuntu.com 2->25 27 Antivirus / Scanner detection for submitted sample 2->27 29 Multi AV Scanner detection for submitted file 2->29 8 fentarm4k.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 process4 process5 12 fentarm4k.elf 8->12         started        15 fentarm4k.elf 8->15         started        17 fentarm4k.elf 8->17         started        19 fentarm4k.elf 8->19         started        signatures6 31 Manipulation of devices in /dev 12->31 33 Deletes system log files 12->33 21 fentarm4k.elf 15->21         started        process7
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ff7e5a42ffd58ac5b3d31535d2ca099e8b60107a18f62e25c8ecb9c004d0815b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ff7e5a42ffd58ac5b3d31535d2ca099e8b60107a18f62e25c8ecb9c004d0815b/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/ff7e5a42ffd58ac5b3d31535d2ca099e8b60107a18f62e25c8ecb9c004d0815b
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-10 13:10:26 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=757fuqx72wfmlm6tcu25fsqjt2fwaed2dd3c4joi5s44abgqqfnq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:josho
Link:
https://tria.ge/reports/260110-rybaxscs5d/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135890-0
YARA:
n/a
Link:
https://app.threat.zone/submission/4b0ba542-5866-4785-b656-9993be834dca
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/ff7e5a42ffd58ac5b3d31535d2ca099e8b60107a18f62e25c8ecb9c004d0815b

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:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

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

Web download

Mirai

elf ff7e5a42ffd58ac5b3d31535d2ca099e8b60107a18f62e25c8ecb9c004d0815b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3753772/
  
Delivery method
Distributed via web download

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