MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a98d6bd63190c2aef2a7567e36f11fafbf12d64c161ec17bc01f60384ed30d0. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a98d6bd63190c2aef2a7567e36f11fafbf12d64c161ec17bc01f60384ed30d0
SHA3-384 hash: 6fdd2ac310a185315f73c27b794d1388e457438c0de0aeabd0dd4adf6a0ffc1c2797e825a295f4d185df4fd155cdbb17
SHA1 hash: c900c45c72ad4e7f4900baaf81f4e97e53ece2bf
MD5 hash: 85389c335eb51beb1cbc3c3a2ed74f90
humanhash: uncle-pizza-blue-september
File name:Polar.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:71'188 bytes
First seen:2026-01-17 19:26:37 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:gWMtWYif+/yF27IafNdeUN02+F6jTwsglGkeXnmoMqsTAATM+CcelRwaQC3oNb3G:gRADCZNdB+MHX1XMqHVRUioldVQf
TLSH T11563013E05463AB1CA64C47B04B50B5B0D7F4FA380528C643DB5EEA0AE16E3838C77B9
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
File size (compressed) :71'188 bytes
File size (de-compressed) :229'384 bytes
Format:linux/mips
Unpacked file: cab834a3eaded326daf98f42cc4deda6e27c3c2422c3a16fd3edfb5b8a16438e

Intelligence

File Origin
# of uploads :
1
# of downloads :
54
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/45f7ff13-e2e6-4f1c-b937-096629dddc0c/
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/696be2a73dd9d20950585e36/reports/cb7f9265-b547-4db6-b074-647315ce2f98/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-01-17T16:40:00Z UTC
Last seen:
2026-01-17T17:31:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r
Link:
https://opentip.kaspersky.com/4a98d6bd63190c2aef2a7567e36f11fafbf12d64c161ec17bc01f60384ed30d0/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/fd34fc8e-97b1-49b1-a85c-2cf5d2530594
Behavior Graph:
Download SVG
%3 guuid=7ebdb547-1800-0000-cf3a-4df5870c0000 pid=3207 /usr/bin/sudo guuid=ffb3bd4a-1800-0000-cf3a-4df5880c0000 pid=3208 /tmp/sample.bin guuid=7ebdb547-1800-0000-cf3a-4df5870c0000 pid=3207->guuid=ffb3bd4a-1800-0000-cf3a-4df5880c0000 pid=3208 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9c3312ad-d552-4500-a62c-569bff861018
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1852591
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1852591 Sample: Polar.mips.elf Startdate: 17/01/2026 Architecture: LINUX Score: 80 22 ilovenetssomuch.ddns.net 2->22 24 ilovenetssomuch.ddns.net 143.20.185.225, 50564, 50566, 69 LANCAMANTOANISERVICOSDEINFORMATICALTDA-MEBR United States 2->24 26 2 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Yara detected Gafgyt 2->32 36 2 other signatures 2->36 8 Polar.mips.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Uses dynamic DNS services 22->34 process4 process5 12 Polar.mips.elf 8->12         started        14 Polar.mips.elf 8->14         started        16 Polar.mips.elf 8->16         started        process6 18 Polar.mips.elf 12->18         started        20 Polar.mips.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4a98d6bd63190c2aef2a7567e36f11fafbf12d64c161ec17bc01f60384ed30d0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a98d6bd63190c2aef2a7567e36f11fafbf12d64c161ec17bc01f60384ed30d0/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/4a98d6bd63190c2aef2a7567e36f11fafbf12d64c161ec17bc01f60384ed30d0
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-01-17 19:27:42 UTC
File Type:
ELF32 Big (Exe)
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jkmnnplddegcv3zkovt6g3yr7l57clleyfq6yf54ah3ahbhngdia._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/260117-x6c3dabt7d/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/76fda272-a95d-4e8f-bfd7-11f5778e143f
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/4a98d6bd63190c2aef2a7567e36f11fafbf12d64c161ec17bc01f60384ed30d0

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
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
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 4a98d6bd63190c2aef2a7567e36f11fafbf12d64c161ec17bc01f60384ed30d0

(this sample)

Mirai

elf cab834a3eaded326daf98f42cc4deda6e27c3c2422c3a16fd3edfb5b8a16438e

  
URLhaus
https://urlhaus.abuse.ch/url/3711579/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 cab834a3eaded326daf98f42cc4deda6e27c3c2422c3a16fd3edfb5b8a16438e
  
Dropping
MD5 657ac26477066fc73c3e40f4dcb1885a

Comments