MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 11573bc277a05684a6a2d7a83005241935337026472249f61fea359d11ed32a9. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 11573bc277a05684a6a2d7a83005241935337026472249f61fea359d11ed32a9
SHA3-384 hash: 713dd9f95a939f4304fc49aea4c1dc7e808341fd465995d5d879398dfdbe2f60a6093f0e7d8f389b9c47e176d3adab6f
SHA1 hash: 37fc5c9ed8327ec289332c9067f2fd6dcd71759d
MD5 hash: df8dfe2ed5ede4c78d5aa0ac6236e430
humanhash: robert-kitten-mike-edward
File name:Polar.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:66'364 bytes
First seen:2025-12-04 17:29:34 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:JO1ShghHtV/nDm1THD4ohfmU30LWskc9VXEzL:0TxtV/qT8o4BWSHEH
TLSH T1235302C17C61BE71A8906830EB8AD8442F13897287FCE5675B341495B80AE69C33E5EB
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) :66'364 bytes
File size (de-compressed) :176'448 bytes
Format:linux/arm
Unpacked file: 08175b72020012a3c4542d2f37e002a0a04ef41d1c99eb74442ba1d35cc699cf

Intelligence

File Origin
# of uploads :
1
# of downloads :
35
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e5266c36-e51a-4db6-b7fd-1efe371fe6f4/
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6931c5336019bc7a8f8132bd/reports/177b215b-6635-4185-9f5f-e2c0918463ef/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-04T22:10:00Z UTC
Last seen:
2025-12-05T00:38:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/11573bc277a05684a6a2d7a83005241935337026472249f61fea359d11ed32a9/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f533bd93-bbc6-429e-83d2-0f77d437a38d
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1826586
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sends malformed DNS queries
Uses dynamic DNS services
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1826586 Sample: Polar.arm.elf Startdate: 04/12/2025 Architecture: LINUX Score: 76 22 uraniumc2.ddns.net. [malformed] 2->22 24 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->24 26 daisy.ubuntu.com 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 34 Sample is packed with UPX 2->34 8 Polar.arm.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 36 Sends malformed DNS queries 22->36 38 Uses dynamic DNS services 22->38 process4 process5 12 Polar.arm.elf 8->12         started        14 Polar.arm.elf 8->14         started        16 Polar.arm.elf 8->16         started        process6 18 Polar.arm.elf 12->18         started        20 Polar.arm.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/11573bc277a05684a6a2d7a83005241935337026472249f61fea359d11ed32a9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/11573bc277a05684a6a2d7a83005241935337026472249f61fea359d11ed32a9/
Threat name:
Linux.Trojan.Svirtu
Create hunting rule
Status:
Malicious
First seen:
2025-12-04 17:30:26 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cfltxqtxublijjvc26udabjede2tg4bgi4ret5q75i2z2epngkuq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251204-v3bzssbp9v/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/78973bd1-09c1-4480-b130-db2c8721e1cf
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/11573bc277a05684a6a2d7a83005241935337026472249f61fea359d11ed32a9

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: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 11573bc277a05684a6a2d7a83005241935337026472249f61fea359d11ed32a9

(this sample)

Mirai

elf 08175b72020012a3c4542d2f37e002a0a04ef41d1c99eb74442ba1d35cc699cf

  
URLhaus
https://urlhaus.abuse.ch/url/3711540/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 08175b72020012a3c4542d2f37e002a0a04ef41d1c99eb74442ba1d35cc699cf
  
Dropping
MD5 8e80c890a267053dbce31e33d2c3b5ab
  
URLhaus
https://urlhaus.abuse.ch/url/3712735/

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