MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 583901d5241b61add64f1c5a4b0db6f208e1966b59f875c6b752c9ba1a97f2aa. 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: 583901d5241b61add64f1c5a4b0db6f208e1966b59f875c6b752c9ba1a97f2aa
SHA3-384 hash: 4caaeb502f8208c8a6a0e62ad7e4fede774869bc8e057f5c0eddee29e274dfb51f05d885b1a75ddd3e8dae685f8bdbc0
SHA1 hash: 499a3535a3d2c48dfaa44312f6eb751e04a14b3e
MD5 hash: d3e3e93f6b5823bb2abccec775b40088
humanhash: fish-texas-apart-fifteen
File name:Polar.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:62'796 bytes
First seen:2025-11-22 16:36:48 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:f+PD4gpTkuptPVk3bYO2wcAfzQmS8etoc1WntmQNz1i:f+0gJ9jWbf2wtfKo0WntRNBi
TLSH T1795302D61669B7B6C69284B9CF08C6C3411B91FEE7487012777B24AA9D4000B477BEFE
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 UPX
File size (compressed) :62'796 bytes
File size (de-compressed) :167'648 bytes
Format:linux/arm
Unpacked file: 9527af4e0a87c9f65d4a4033667403d351b119beb34006b8281da84786091ebd

Intelligence

File Origin
# of uploads :
1
# of downloads :
43
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-18.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
48
Number of processes launched:
5
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/583901d5241b61add64f1c5a4b0db6f208e1966b59f875c6b752c9ba1a97f2aa
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-19T22:29:00Z UTC
Last seen:
2025-11-22T10:18:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/583901d5241b61add64f1c5a4b0db6f208e1966b59f875c6b752c9ba1a97f2aa/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/62be1147-3c55-419c-a347-5206a65f2c55
Behavior Graph:
Download SVG
%3 guuid=ffa8d831-1a00-0000-fdbc-54c2410d0000 pid=3393 /usr/bin/sudo guuid=7da60334-1a00-0000-fdbc-54c24a0d0000 pid=3402 /tmp/sample.bin guuid=ffa8d831-1a00-0000-fdbc-54c2410d0000 pid=3393->guuid=7da60334-1a00-0000-fdbc-54c24a0d0000 pid=3402 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bcbbfd00-f52b-46de-a769-0a0f52b6193f
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1819139
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: 1819139 Sample: Polar.arm.elf Startdate: 22/11/2025 Architecture: LINUX Score: 76 22 lolzzmortex.duckdns.org. [malformed] 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 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/583901d5241b61add64f1c5a4b0db6f208e1966b59f875c6b752c9ba1a97f2aa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/583901d5241b61add64f1c5a4b0db6f208e1966b59f875c6b752c9ba1a97f2aa/
Threat name:
Linux.Trojan.Svirtu
Create hunting rule
Status:
Malicious
First seen:
2025-11-20 01:31:50 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=la4qdvjednq23vspdrnewdnw6ieodftllh4hlrvxkle3ugux6kva._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/251122-t44wjayqax/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d6fe5639-36b7-4fc5-9d0e-1a630f0d5b66
Please note that we are no longer able to provide a coverage score for Virus Total.

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 583901d5241b61add64f1c5a4b0db6f208e1966b59f875c6b752c9ba1a97f2aa

(this sample)

Mirai

elf 9527af4e0a87c9f65d4a4033667403d351b119beb34006b8281da84786091ebd

  
URLhaus
https://urlhaus.abuse.ch/url/3714155/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 9527af4e0a87c9f65d4a4033667403d351b119beb34006b8281da84786091ebd
  
Dropping
MD5 6cebb3365bef4f16b321e24f96878e6a

Comments