MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 428a0eda497daaf17b2c8ffdbab2d8c07a395718476713a4815636941e4eafd5. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 428a0eda497daaf17b2c8ffdbab2d8c07a395718476713a4815636941e4eafd5
SHA3-384 hash: 920c3913176ae4718d3379610c4e1e7c1ec88c356ab0a0d4c21e20bf3038948c4c2811c40a21d00d8276efda765ce685
SHA1 hash: e667829934ce31a0ea5ff8a48d496296c78fd16b
MD5 hash: 599206f83b78300862b7b4d9cbfd1676
humanhash: kitten-double-nine-hotel
File name:Polar.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:252'213 bytes
First seen:2025-11-29 10:28:17 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:dDgenRFRRu59AHaYn6Lhf4Q51XpqQoOt+9JrV/GiBh+YglZB:dDDFuXAHag6Lhf4QrQtOi/n+/
TLSH T1DE342A46EB804E13C0D627B9F69F42593333D794D3EB7306A9286BB43B8379A4F62505
telfhash t144412fb29334911a1a61dc18e8eca772482ec7271345ff77de25c88c281944ee539c0f
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 69d6684cbcc84a3541bcb31d5e07c90e32fcfcace58a2bb536fe0973ebc44a23
File size (compressed) :90'992 bytes
File size (de-compressed) :252'213 bytes
Format:linux/arm
Packed file: 69d6684cbcc84a3541bcb31d5e07c90e32fcfcace58a2bb536fe0973ebc44a23

Intelligence

File Origin
# of uploads :
1
# of downloads :
30
Origin country :
NL NL
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-7135925-0
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.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9760303-0
Create hunting rule

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

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Opens a port
Sends data to a server
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt gcc masquerade mirai obfuscated rust
Link:
https://www.filescan.io/uploads/692acaf8efb205635358e872/reports/2e039208-e4bc-47e4-8ad7-5b2abc9a5a1a/overview
Result
Gathering data
Gathering data
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1822813
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1822813 Sample: Polar.arm7.elf Startdate: 29/11/2025 Architecture: LINUX Score: 68 22 lolzzmortex.duckdns.org 2->22 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 2 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 8 Polar.arm7.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Uses dynamic DNS services 22->34 process4 process5 12 Polar.arm7.elf 8->12         started        14 Polar.arm7.elf 8->14         started        16 Polar.arm7.elf 8->16         started        process6 18 Polar.arm7.elf 12->18         started        20 Polar.arm7.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/428a0eda497daaf17b2c8ffdbab2d8c07a395718476713a4815636941e4eafd5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/428a0eda497daaf17b2c8ffdbab2d8c07a395718476713a4815636941e4eafd5/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ikfa5wsjpwvpc6zmr763vmwyyb5dsvyyi5trhjebky3jihsov7kq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery
Link:
https://tria.ge/reports/251129-mja96atkes/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Malware Config
C2 Extraction:
lolzzmortex.duckdns.org
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_ea92cca8
Link:
https://app.threat.zone/submission/97635823-75ac-46bd-b1e1-313e720836f6
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/428a0eda497daaf17b2c8ffdbab2d8c07a395718476713a4815636941e4eafd5

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 69d6684cbcc84a3541bcb31d5e07c90e32fcfcace58a2bb536fe0973ebc44a23

Mirai

elf 428a0eda497daaf17b2c8ffdbab2d8c07a395718476713a4815636941e4eafd5

(this sample)

  
Dropped by
SHA256 69d6684cbcc84a3541bcb31d5e07c90e32fcfcace58a2bb536fe0973ebc44a23
  
URLhaus
https://urlhaus.abuse.ch/url/3711457/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 cefc0f1ba415cfa6573b1917db3aeda3

Comments