MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf0b7a3bab54d71d6ec17e19e603671f36325ba0701499edda0163a35fad3fa7. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf0b7a3bab54d71d6ec17e19e603671f36325ba0701499edda0163a35fad3fa7
SHA3-384 hash: eb6f79b99448fccc4503f198c7fd903ef44be18f79660a307d829b9848878526beea35579c5086998c8409d5a89461db
SHA1 hash: e2e61b7dadcf0bad2dc0e23e7a2f3942561f91a3
MD5 hash: b3012126081f0e166bb5df8e23d48bc6
humanhash: saturn-golf-violet-kilo
File name:dlr.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:83'396 bytes
First seen:2025-10-25 19:25:50 UTC
Last seen:2025-10-26 08:14:43 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:7JghUknB+G2rth1jHVOxkVHk7r/rBujkxqDJ+QgLcos5a0+ZV4NscZAeJkZFjUDc:NS0h1jUxkV6/BuAUJMLds5i6PkH6c
TLSH T1F383023D6BB3D1BAD7DF3DB0DE789987DD23297C32C65223772A95308AC154105AA223
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) :83'396 bytes
File size (de-compressed) :243'231 bytes
Format:linux/arm
Unpacked file: eaa6a911d26c82ce980c83d1a8dfc316200714b66774bf3bc4e9207376941acc

Intelligence

File Origin
# of uploads :
4
# of downloads :
40
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Opens a port
Sends data to a server
Connection attempt
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed threat upx
Link:
https://www.filescan.io/uploads/68fd246311ff3db29f685b20/reports/bf4f656e-25bf-4480-ae87-5ece70307e2e/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-25T16:41:00Z UTC
Last seen:
2025-10-27T10:13:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.hv HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/bf0b7a3bab54d71d6ec17e19e603671f36325ba0701499edda0163a35fad3fa7/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/aa4ad51a-bba8-4949-96ab-5d7ce1888305
Behavior Graph:
Download SVG
%3 guuid=7952a877-1900-0000-db5d-c4e97c110000 pid=4476 /usr/bin/sudo guuid=e255eb79-1900-0000-db5d-c4e983110000 pid=4483 /tmp/sample.bin guuid=7952a877-1900-0000-db5d-c4e97c110000 pid=4476->guuid=e255eb79-1900-0000-db5d-c4e983110000 pid=4483 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4c626b5b-5096-4bf1-90b9-50b0e17da3c2
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1801818
Signature
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1801818 Sample: dlr.arm7.elf Startdate: 25/10/2025 Architecture: LINUX Score: 64 19 169.254.169.254, 80 USDOSUS Reserved 2->19 21 213.209.143.62, 1348, 45308 RAPIDNET-DEHaunstetterStr19DE Germany 2->21 23 daisy.ubuntu.com 162.213.35.25, 443, 60646 CANONICAL-ASGB United States 2->23 25 Multi AV Scanner detection for submitted file 2->25 27 Yara detected Mirai 2->27 29 Sample is packed with UPX 2->29 8 dlr.arm7.elf 2->8         started        11 python3.8 dpkg 2->11         started        signatures3 process4 signatures5 31 Sample deletes itself 8->31 13 dlr.arm7.elf 8->13         started        process6 process7 15 dlr.arm7.elf 13->15         started        17 dlr.arm7.elf 13->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/bf0b7a3bab54d71d6ec17e19e603671f36325ba0701499edda0163a35fad3fa7
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bf0b7a3bab54d71d6ec17e19e603671f36325ba0701499edda0163a35fad3fa7/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/bf0b7a3bab54d71d6ec17e19e603671f36325ba0701499edda0163a35fad3fa7
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-25 19:26:43 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x4fxuo5lktlr23wbpym6ma3hd43dew5aoakjt3o2afr2gx5nh6tq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/251025-x5qbbaznfp/
Behaviour
Reads runtime system information
Changes its process name
Deletes itself
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9f63322b-05d1-498c-b90b-7497f0317e1d
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/bf0b7a3bab54d71d6ec17e19e603671f36325ba0701499edda0163a35fad3fa7

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 bf0b7a3bab54d71d6ec17e19e603671f36325ba0701499edda0163a35fad3fa7

(this sample)

Mirai

elf eaa6a911d26c82ce980c83d1a8dfc316200714b66774bf3bc4e9207376941acc

  
URLhaus
https://urlhaus.abuse.ch/url/3687362/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3687366/
  
Dropping
SHA256 eaa6a911d26c82ce980c83d1a8dfc316200714b66774bf3bc4e9207376941acc
  
Dropping
MD5 d3ad4dd49501a587c2b8c52bcd7edead
  
URLhaus
https://urlhaus.abuse.ch/url/3681484/
  
URLhaus
https://urlhaus.abuse.ch/url/3681665/
  
URLhaus
https://urlhaus.abuse.ch/url/3639132/
  
URLhaus
https://urlhaus.abuse.ch/url/3688060/

Comments