MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6138db860a6695f8a3900fae3a75d32ddd9a20f12f043a3f1a783a2f1ecec4d2. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6138db860a6695f8a3900fae3a75d32ddd9a20f12f043a3f1a783a2f1ecec4d2
SHA3-384 hash: 08e7c05ae4fdc1bd9fa67d8b6cb0048577845235cdbf4a852550df4250222ea93880f68855337ce81132928e0cc9d584
SHA1 hash: 80b87fb4deb85b53ef9554dd5ad14ce5e671b023
MD5 hash: da7a15196703d4583b3fac1b45adaf5a
humanhash: angel-cat-red-pluto
File name:Polar.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:66'476 bytes
First seen:2025-11-28 23:46:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:oVkDFa6eAQ6eYjYByM5hzJGlmCd+gz6imb0fz1L:OkDfe2eYjYBy+zslr+gWimofBL
TLSH T1575302A0D0766C74E630C83E9899840DEFD42FB6F66FA7414E4827F46497BA200E5F95
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) :66'476 bytes
File size (de-compressed) :176'896 bytes
Format:linux/arm
Unpacked file: 820a7ffca1224e715aaea58847fdbc45b407d1d2d87bebb9b993fc348387f539

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/3ccce926-eaba-4f79-af09-5bf4ff8392a3/
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/692a3481ab9dcca0c6fbb85b/reports/318392b8-2486-4e39-affe-0f4138318ae4/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-28T21:26:00Z UTC
Last seen:
2025-11-29T09:54:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/6138db860a6695f8a3900fae3a75d32ddd9a20f12f043a3f1a783a2f1ecec4d2/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/77d77151-6ad0-4033-b565-bb08c4d7bd37
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1822637
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: 1822637 Sample: Polar.arm.elf Startdate: 29/11/2025 Architecture: LINUX Score: 76 22 lolzzmortex.duckdns.org. [malformed] 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 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/6138db860a6695f8a3900fae3a75d32ddd9a20f12f043a3f1a783a2f1ecec4d2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6138db860a6695f8a3900fae3a75d32ddd9a20f12f043a3f1a783a2f1ecec4d2/
Threat name:
Linux.Trojan.Svirtu
Create hunting rule
Status:
Malicious
First seen:
2025-11-28 23:47:13 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=me4nxbqkm2k7ri4qb6xdu5otfxozuihrf4cdupy2pa5c6hwoytja._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251128-3sxshscj51/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/22cf4e87-bd13-4873-8589-9ec9a89eccc0
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/6138db860a6695f8a3900fae3a75d32ddd9a20f12f043a3f1a783a2f1ecec4d2

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 6138db860a6695f8a3900fae3a75d32ddd9a20f12f043a3f1a783a2f1ecec4d2

(this sample)

Mirai

elf 820a7ffca1224e715aaea58847fdbc45b407d1d2d87bebb9b993fc348387f539

  
URLhaus
https://urlhaus.abuse.ch/url/3711540/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 820a7ffca1224e715aaea58847fdbc45b407d1d2d87bebb9b993fc348387f539
  
Dropping
MD5 d4d971b100045c5d3d9b4d44f550f412
  
URLhaus
https://urlhaus.abuse.ch/url/3712735/

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