MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d
SHA3-384 hash: 3a91f5f980ab1ae7c0df8f186b25495ed7bd6306ca90bc8b926a630b6acc4d1b37a766b4a2d4b0e0011c3652c176921e
SHA1 hash: 88ccbc2e6998dafc35ed6a0a6fd20670bd5906bd
MD5 hash: 20129b9b338de8f84f4214f12a1c67ac
humanhash: spring-zebra-bluebird-edward
File name:Polar.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:56'180 bytes
First seen:2025-11-18 17:22:59 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:/nDi800/Kiff2R10ewe8IjLU+GznTnouy8tyv:/H08ff2RutWyrouti
TLSH T1A7430283E1AC461AD4284A7A007B3C686826FF4EF1D71BE02ED6967719717D9341C3F4
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
File size (compressed) :56'180 bytes
File size (de-compressed) :135'852 bytes
Format:linux/i386
Unpacked file: 872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8

Intelligence

File Origin
# of uploads :
1
# of downloads :
44
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Receives data from a server
Kills processes
Opens a port
Sends data to a server
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/691cab9596b510474f56566d/reports/12e42b3b-8230-4800-bd6d-4d5d08da2e17/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
46
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-16T20:13:00Z UTC
Last seen:
2025-11-20T13:25:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c4b05300-332a-4289-9c3f-6068cdd35ec4
Behavior Graph:
Download SVG
%3 guuid=e7c94a22-1a00-0000-3c3c-bdafb0070000 pid=1968 /usr/bin/sudo guuid=4a2c7825-1a00-0000-3c3c-bdafb5070000 pid=1973 /tmp/sample.bin net guuid=e7c94a22-1a00-0000-3c3c-bdafb0070000 pid=1968->guuid=4a2c7825-1a00-0000-3c3c-bdafb5070000 pid=1973 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=4a2c7825-1a00-0000-3c3c-bdafb5070000 pid=1973->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=a7cf6d26-1a00-0000-3c3c-bdafb8070000 pid=1976 /tmp/sample.bin guuid=4a2c7825-1a00-0000-3c3c-bdafb5070000 pid=1973->guuid=a7cf6d26-1a00-0000-3c3c-bdafb8070000 pid=1976 clone guuid=1a01a653-1b00-0000-3c3c-bdafdd090000 pid=2525 /tmp/sample.bin guuid=4a2c7825-1a00-0000-3c3c-bdafb5070000 pid=1973->guuid=1a01a653-1b00-0000-3c3c-bdafdd090000 pid=2525 clone guuid=ebebac53-1b00-0000-3c3c-bdafdf090000 pid=2527 /tmp/sample.bin net send-data zombie guuid=4a2c7825-1a00-0000-3c3c-bdafb5070000 pid=1973->guuid=ebebac53-1b00-0000-3c3c-bdafdf090000 pid=2527 clone guuid=f5227b26-1a00-0000-3c3c-bdafb9070000 pid=1977 /tmp/sample.bin guuid=a7cf6d26-1a00-0000-3c3c-bdafb8070000 pid=1976->guuid=f5227b26-1a00-0000-3c3c-bdafb9070000 pid=1977 clone guuid=1da98c26-1a00-0000-3c3c-bdafba070000 pid=1978 /tmp/sample.bin dns net send-data zombie guuid=a7cf6d26-1a00-0000-3c3c-bdafb8070000 pid=1976->guuid=1da98c26-1a00-0000-3c3c-bdafba070000 pid=1978 clone guuid=1da98c26-1a00-0000-3c3c-bdafba070000 pid=1978->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 72B 4b0e4b24-021f-5743-8b5a-ce89b76b814b uraniumc2.ddns.net:69 guuid=1da98c26-1a00-0000-3c3c-bdafba070000 pid=1978->4b0e4b24-021f-5743-8b5a-ce89b76b814b send: 10B guuid=ebebac53-1b00-0000-3c3c-bdafdf090000 pid=2527->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1080B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=ebebac53-1b00-0000-3c3c-bdafdf090000 pid=2527->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/29f8aeb6-3cec-4c56-aec8-8e3c064cdd25
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1816416
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1816416 Sample: Polar.x86.elf Startdate: 18/11/2025 Architecture: LINUX Score: 64 26 uraniumc2.ddns.net 2->26 28 169.254.169.254, 80 USDOSUS Reserved 2->28 30 5 other IPs or domains 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Sample is packed with UPX 2->36 8 Polar.x86.elf 2->8         started        10 dash rm 2->10         started        12 dash cut 2->12         started        14 9 other processes 2->14 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/020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 17:23:36 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=aicfpit6bicvamn45ln5b5zsk5rvuavqddt6pcuo3qhwmisnengq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251118-vyd9csaj5t/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Unexpected DNS network traffic destination
Mirai
Mirai family
Malware Config
C2 Extraction:
uraniumc2.ddns.net
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/3f4927df-6faa-484b-8ea5-de5d60bc265d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d

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 020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d

(this sample)

Mirai

elf 872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8

  
URLhaus
https://urlhaus.abuse.ch/url/3711445/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3711502/
  
Dropping
SHA256 872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8
  
Dropping
MD5 6299ddd71cd11766ea158f7d6b2caabc

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