MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b880c870ea1c07ac798a132f6db87f27955fc380aec88d23efea288931b48bc. 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: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7b880c870ea1c07ac798a132f6db87f27955fc380aec88d23efea288931b48bc
SHA3-384 hash: 26d84e07bce728cdec12862b48428c1f65cca8947d63c09c8056c98f34b6147cab43babe9b446715a0972a9a52420dd7
SHA1 hash: a534c9301336934737b3db57ca9db121419cd4ae
MD5 hash: b5a7dd389b393200215ab88abcb711ae
humanhash: july-mountain-glucose-music
File name:Polar.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:157'540 bytes
First seen:2025-11-18 17:23:15 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:3GRlminee0PIMHsxBLEbwbLbAWzco2eEMW6ekhrWF7:3G3GLsYEbLbTS/l63rE7
TLSH T165F37C62C8B1AE98C6258574F021FF3D6B539AA645830FFA199BC7714047DCCFA067B8
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 :
56
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

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

SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
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-7136016-0
Create hunting rule

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

Unix.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Trojan.Mirai-7138377-0
Create hunting rule

Unix.Trojan.Mirai-7674518-0
Create hunting rule

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

Unix.Trojan.Generic-9910199-0
Create hunting rule

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

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

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/691caba796b510474f565699/reports/c3c29f3f-5b3d-45dc-80bd-a3331a0ca0aa/overview
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
Detections:
HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/7b880c870ea1c07ac798a132f6db87f27955fc380aec88d23efea288931b48bc/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/e4990ba5-a2db-4ad6-8fc9-231efc66e450
Behavior Graph:
Download SVG
%3 guuid=4278af32-1b00-0000-3591-d503160c0000 pid=3094 /usr/bin/sudo guuid=0a72ac34-1b00-0000-3591-d5031c0c0000 pid=3100 /tmp/sample.bin guuid=4278af32-1b00-0000-3591-d503160c0000 pid=3094->guuid=0a72ac34-1b00-0000-3591-d5031c0c0000 pid=3100 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/918c095d-73ac-4ee2-9273-f5fb4221cd88
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1816404
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1816404 Sample: Polar.sh4.elf Startdate: 18/11/2025 Architecture: LINUX Score: 76 22 uraniumc2.ddns.net 2->22 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 3 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 Yara detected Gafgyt 2->34 8 Polar.sh4.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 36 Uses dynamic DNS services 22->36 process4 process5 12 Polar.sh4.elf 8->12         started        14 Polar.sh4.elf 8->14         started        16 Polar.sh4.elf 8->16         started        process6 18 Polar.sh4.elf 12->18         started        20 Polar.sh4.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/7b880c870ea1c07ac798a132f6db87f27955fc380aec88d23efea288931b48bc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7b880c870ea1c07ac798a132f6db87f27955fc380aec88d23efea288931b48bc/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/7b880c870ea1c07ac798a132f6db87f27955fc380aec88d23efea288931b48bc
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=poeazbyouhahvr4yuezpnw4h6j4vl7byblwirur672rirey3jc6a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/251118-vymkqsaj6s/
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_ea92cca8
Link:
https://app.threat.zone/submission/b9ab8fed-3909-46f4-8120-393a565a7a6d
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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:Mirai_Unpack
Create hunting rule
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 7b880c870ea1c07ac798a132f6db87f27955fc380aec88d23efea288931b48bc

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3711450/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3711499/

Comments