MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c19dfac3c3c3c0b8a24170bfe71f2b2fdf357029cc407620292142945574c66b. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c19dfac3c3c3c0b8a24170bfe71f2b2fdf357029cc407620292142945574c66b
SHA3-384 hash: f3b5a871e9a8b4a0f574fa08a6ed34eeb7b5a330fc69113bcfc3f2cf82ba872c26bf8a4b0a9dd1a6d0687e3aa7dd2239
SHA1 hash: 61db4ce77444b8ab27794313c269cdb4616bbf99
MD5 hash: 194ea952c8a60f71a78d8305117598f2
humanhash: butter-spaghetti-jersey-gee
File name:Polar.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:136'428 bytes
First seen:2025-11-29 04:18:30 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:o58NWobg8VHFrp1Qne9iEnrDRiwuiQ/0vdwz8xB:A8NDbg8VHgUi4SfcvGz8x
TLSH T139D36CC4F64FD0F6E81254712127B7369B76ED3A103EDA43C3A99B369CA3581C91A36C
telfhash t1ad513ab5bb7608e8a7e08803e24d4731bd0da7bb682436f245f35975327a64244b7d39
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 upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 97aa861cf408cc8ad8a49443c2b7bd15705ce0c1ee72e0674b476e418cfeccbb
File size (compressed) :56'192 bytes
File size (de-compressed) :136'428 bytes
Format:linux/i386
Packed file: 97aa861cf408cc8ad8a49443c2b7bd15705ce0c1ee72e0674b476e418cfeccbb

Intelligence

File Origin
# of uploads :
1
# of downloads :
41
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/3f482ea0-b0af-4c7f-a105-f916f6eec344/
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

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

SecuriteInfo.com.Linux.Siggen.9999-14.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.Trojan.Mirai-8025795-0
Create hunting rule

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

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

Unix.Trojan.Mirai-10028515-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sends data to a server
Runs as daemon
Opens a port
DNS request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated
Link:
https://www.filescan.io/uploads/692a743f1b65ca0bb9272836/reports/0e14b1e8-4d4e-4986-b266-10cea0391437/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-27T14:40:00Z UTC
Last seen:
2025-11-29T13:42:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/c19dfac3c3c3c0b8a24170bfe71f2b2fdf357029cc407620292142945574c66b/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fe3771f2-c288-4d66-860e-bf3227b8c6cc
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1822692
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: 1822692 Sample: Polar.x86.elf Startdate: 29/11/2025 Architecture: LINUX Score: 68 26 lolzzmortex.duckdns.org 2->26 28 169.254.169.254, 80 USDOSUS Reserved 2->28 30 6 other IPs or domains 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus / Scanner detection for submitted sample 2->34 36 Multi AV Scanner detection for submitted file 2->36 8 Polar.x86.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        14 python3.8 dpkg 2->14         started        signatures3 38 Uses dynamic DNS services 26->38 process4 process5 16 Polar.x86.elf 8->16         started        18 Polar.x86.elf 8->18         started        20 Polar.x86.elf 8->20         started        process6 22 Polar.x86.elf 16->22         started        24 Polar.x86.elf 16->24         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c19dfac3c3c3c0b8a24170bfe71f2b2fdf357029cc407620292142945574c66b
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c19dfac3c3c3c0b8a24170bfe71f2b2fdf357029cc407620292142945574c66b/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-29 04:19:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ygo7vq6dypalrisboc76ohzlf7ptk4bjzrahmibjefbjivluyzvq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery linux
Link:
https://tria.ge/reports/251129-exln2sdr31/
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 mirai Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Gafgyt_ea92cca8 Linux_Trojan_Mirai_fa3ad9d0 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_93fc3657 Linux_Trojan_Mirai_804f8e7c Linux_Trojan_Mirai_99d78950 Linux_Trojan_Mirai_a68e498c Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/2e071fcc-76ff-47cc-8802-282bda291f7f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/c19dfac3c3c3c0b8a24170bfe71f2b2fdf357029cc407620292142945574c66b

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_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_804f8e7c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_93fc3657
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_99d78950
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_a68e498c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_fa3ad9d0
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 97aa861cf408cc8ad8a49443c2b7bd15705ce0c1ee72e0674b476e418cfeccbb

Mirai

elf c19dfac3c3c3c0b8a24170bfe71f2b2fdf357029cc407620292142945574c66b

(this sample)

  
Dropped by
SHA256 97aa861cf408cc8ad8a49443c2b7bd15705ce0c1ee72e0674b476e418cfeccbb
  
URLhaus
https://urlhaus.abuse.ch/url/3712740/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 9b07d014fadd3b91e2fb3b9b025b06e1
  
URLhaus
https://urlhaus.abuse.ch/url/3711502/

Comments