MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8703e3f3dc621d78507c39cfeeeba82a87225ee09be6dd5f3faa848be528bd51. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8703e3f3dc621d78507c39cfeeeba82a87225ee09be6dd5f3faa848be528bd51
SHA3-384 hash: 2a4d3010d24bab8eb9c5977a78cb9211054b7ef52df42e566859f4bda20f1e28bf9be0d221e53024489bf5ff5dad6f74
SHA1 hash: d1a6cb3a64dae506095a8601bfae889f9d5fc900
MD5 hash: 1e4461c62f65d338648721e7cc1e5834
humanhash: freddie-high-two-robin
File name:zersh4
Download: download sample
Signature Mirai
Create hunting rule
File size:62'624 bytes
First seen:2025-12-28 13:43:24 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:gaEwt4hdHOwfDO6dGJkOKiLCNbnFCoEP5uu:g/DduwS6hhiSnFA5uu
TLSH T179538D63C8296DD4D15942F1B8308EB51F63F204C5572FFB2A99C6798043EACFA093E5
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 :
86
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6951342be126b9ff4393fda7/reports/845fd2d8-8708-45a1-a1d1-8d74e2de69f6/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/9c21505b-78e8-4e60-9134-f9468552b081
Behavior Graph:
Download SVG
%3 guuid=7bafecd3-1900-0000-e51b-ccef760e0000 pid=3702 /usr/bin/sudo guuid=addefcd6-1900-0000-e51b-ccef7d0e0000 pid=3709 /tmp/sample.bin guuid=7bafecd3-1900-0000-e51b-ccef760e0000 pid=3702->guuid=addefcd6-1900-0000-e51b-ccef7d0e0000 pid=3709 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/83eef831-2b09-48a1-a978-7d74ad018189
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1840783
Signature
Antivirus / Scanner detection for submitted sample
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1840783 Sample: zersh4.elf Startdate: 28/12/2025 Architecture: LINUX Score: 64 14 109.202.202.202, 80 INIT7CH Switzerland 2->14 16 134.122.13.243, 39691, 53676 DIGITALOCEAN-ASNUS United States 2->16 18 3 other IPs or domains 2->18 20 Antivirus / Scanner detection for submitted sample 2->20 22 Yara detected Mirai 2->22 8 zersh4.elf 2->8         started        signatures3 process4 process5 10 zersh4.elf 8->10         started        process6 12 zersh4.elf 10->12         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8703e3f3dc621d78507c39cfeeeba82a87225ee09be6dd5f3faa848be528bd51
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8703e3f3dc621d78507c39cfeeeba82a87225ee09be6dd5f3faa848be528bd51/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-28 14:10:32 UTC
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q4b6h464mioxqud4hhh6525ifkdsexxatptn2xz7vkcixzjixviq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/251228-q1v8faxlfw/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9885259-0
YARA:
n/a
Link:
https://app.threat.zone/submission/55942611-c5ba-4374-981d-31f2a0fd0062
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/8703e3f3dc621d78507c39cfeeeba82a87225ee09be6dd5f3faa848be528bd51

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_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
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 8703e3f3dc621d78507c39cfeeeba82a87225ee09be6dd5f3faa848be528bd51

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739194/
  
Delivery method
Distributed via web download

Comments