MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8. 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: 12


Intelligence 12 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8
SHA3-384 hash: 2c6b8ce3c8149d549a823a1bcb1f47831440eba3e07a4d1d26b0e3c09dc424823aea20f6e03858510714775e1da398ff
SHA1 hash: ee9f1ff8bf42c9264c98f5072e84b9b1b24589db
MD5 hash: 6299ddd71cd11766ea158f7d6b2caabc
humanhash: december-fix-kitten-king
File name:Polar.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:135'852 bytes
First seen:2025-11-18 17:23:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:SNLuRSWV9FrpRNefMzfBUqvnEd5A7blxeRgiEv:mL+SWV960zDGA3TeGiq
TLSH T1B5D36CC4F64FC0F5E81215713136BB72AA73ED3A113EDA43D3B95A219CA3981D91A36C
telfhash t1875128f9f97608e957d08803d24e6731bc0db77b2464367605f76979326ae0250bbc39
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 020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d
File size (compressed) :56'180 bytes
File size (de-compressed) :135'852 bytes
Format:linux/i386
Packed file: 020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d

Intelligence

File Origin
# of uploads :
1
# of downloads :
49
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.9999-14.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
Sends data to a server
Receives data from a server
Runs as daemon
Opens a port
DNS request
Connection attempt
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/691cac4556cb9be853a7457a/reports/49c22d0e-d409-4881-8a47-d7978f4a48fd/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
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/872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8
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:
2025-11-18T15:35:00Z UTC
Last seen:
2025-11-20T15:00:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3964741a-55e5-4b43-98b0-ce7080fa77b5
Behavior Graph:
Download SVG
%3 guuid=fef380e9-1a00-0000-dc91-da08c50a0000 pid=2757 /usr/bin/sudo guuid=628fe3eb-1a00-0000-dc91-da08cb0a0000 pid=2763 /tmp/sample.bin net guuid=fef380e9-1a00-0000-dc91-da08c50a0000 pid=2757->guuid=628fe3eb-1a00-0000-dc91-da08cb0a0000 pid=2763 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=628fe3eb-1a00-0000-dc91-da08cb0a0000 pid=2763->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=16af1cec-1a00-0000-dc91-da08cd0a0000 pid=2765 /tmp/sample.bin guuid=628fe3eb-1a00-0000-dc91-da08cb0a0000 pid=2763->guuid=16af1cec-1a00-0000-dc91-da08cd0a0000 pid=2765 clone guuid=ce52d818-1c00-0000-dc91-da08e60c0000 pid=3302 /tmp/sample.bin guuid=628fe3eb-1a00-0000-dc91-da08cb0a0000 pid=2763->guuid=ce52d818-1c00-0000-dc91-da08e60c0000 pid=3302 clone guuid=892edf18-1c00-0000-dc91-da08e70c0000 pid=3303 /tmp/sample.bin net send-data zombie guuid=628fe3eb-1a00-0000-dc91-da08cb0a0000 pid=2763->guuid=892edf18-1c00-0000-dc91-da08e70c0000 pid=3303 clone guuid=f6ad26ec-1a00-0000-dc91-da08ce0a0000 pid=2766 /tmp/sample.bin guuid=16af1cec-1a00-0000-dc91-da08cd0a0000 pid=2765->guuid=f6ad26ec-1a00-0000-dc91-da08ce0a0000 pid=2766 clone guuid=55c62fec-1a00-0000-dc91-da08cf0a0000 pid=2767 /tmp/sample.bin dns net send-data zombie guuid=16af1cec-1a00-0000-dc91-da08cd0a0000 pid=2765->guuid=55c62fec-1a00-0000-dc91-da08cf0a0000 pid=2767 clone guuid=55c62fec-1a00-0000-dc91-da08cf0a0000 pid=2767->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 36B 4b0e4b24-021f-5743-8b5a-ce89b76b814b uraniumc2.ddns.net:69 guuid=55c62fec-1a00-0000-dc91-da08cf0a0000 pid=2767->4b0e4b24-021f-5743-8b5a-ce89b76b814b send: 6B guuid=892edf18-1c00-0000-dc91-da08e70c0000 pid=3303->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1080B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=892edf18-1c00-0000-dc91-da08e70c0000 pid=3303->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/154b8648-bf0d-4f50-9dc4-16f48dd35987
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1816310
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1816310 Sample: Polar.x86.elf Startdate: 18/11/2025 Architecture: LINUX Score: 60 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 8 Polar.x86.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 32 Uses dynamic DNS services 22->32 process4 process5 12 Polar.x86.elf 8->12         started        14 Polar.x86.elf 8->14         started        16 Polar.x86.elf 8->16         started        process6 18 Polar.x86.elf 12->18         started        20 Polar.x86.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 17:25:51 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=q4wg224fq3shvxozgeiube5edoaul5ratnaiynvklkqr4gsm2o4a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery linux
Link:
https://tria.ge/reports/251118-vzrk3sgy7b/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Malware Config
C2 Extraction:
uraniumc2.ddns.net
Verdict:
Malicious
Tags:
trojan mirai gafgyt 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/26fe82a3-5919-49df-a9ce-033d5cbf8a0a
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/872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8

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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
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 020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d

Mirai

elf 872c6d6b8586e47addd931114093a41b8145f6209b408c36aa5aa11e1a4cd3b8

(this sample)

  
Dropped by
SHA256 020457a27e0a055031bceadbd0f73257635a02b018e7e78a8edc0f66224d234d
  
URLhaus
https://urlhaus.abuse.ch/url/3711445/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3711502/
  
Dropped by
MD5 20129b9b338de8f84f4214f12a1c67ac

Comments