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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51634a8dde4e5421c695c9fc5fb1224b525a7939bafffae05c92f8516f29f2f2. 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: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 51634a8dde4e5421c695c9fc5fb1224b525a7939bafffae05c92f8516f29f2f2
SHA3-384 hash: 7fade6047cb3714e891b6c498940b08fe1874e39ef6038fa448ac466f307fdd6f2f9b0a458af0fb83aba6ec31b2c6677
SHA1 hash: a4e22ce047cc0cf4decf2b91ee3d86cf3e8beae3
MD5 hash: d1f69a0496ab224d4d6b59908de340c7
humanhash: bacon-triple-blossom-carolina
File name:arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:192'129 bytes
First seen:2026-11-07 08:28:15 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:HjU7a+uAgOUf+yav5gi9WAUjPMBHOq8epRFoqM/R7hODmpS2eXOBAdaQ:DcuAgrmyav5gUWjUBHOq8e/SqM/R70DR
TLSH T153141A46EB418B53C0D727B9F6DF435133239B6897A773059628ABB43F8679E4F22102
telfhash t1c821219661bd826a6ea12c28dd7c4bf204139b223391bf31ef19c8c4582b007f964d5f
Magika elf
Reporter abuse_ch
Tags:elf mirai torii upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 dd40528420f0750d8c8efa15d736345a1deebcc94ed0f857911e526fdae8b8e6
File size (compressed) :72'064 bytes
File size (de-compressed) :192'129 bytes
Format:linux/arm
Packed file: dd40528420f0750d8c8efa15d736345a1deebcc94ed0f857911e526fdae8b8e6

Intelligence

File Origin
# of uploads :
1
# of downloads :
103
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-9760303-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
bash gcc lolbin rust
Link:
https://www.filescan.io/uploads/6aeee1598735b442e7ab7f75/reports/f7efc565-3b1e-42de-a07a-a0f18e37239e/overview
Verdict:
Malicious
File Type:
elf.32.le
Link:
https://opentip.kaspersky.com/51634a8dde4e5421c695c9fc5fb1224b525a7939bafffae05c92f8516f29f2f2/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3643dae9-8484-4b4c-b8f0-e7527510983b
Behavior Graph:
Download SVG
%3 guuid=a771a91a-1b00-0000-4550-f24bef080000 pid=2287 /usr/bin/sudo guuid=3613881e-1b00-0000-4550-f24bf4080000 pid=2292 /tmp/sample.bin guuid=a771a91a-1b00-0000-4550-f24bef080000 pid=2287->guuid=3613881e-1b00-0000-4550-f24bf4080000 pid=2292 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b2f20344-bf21-4390-b041-96d203a82829
Result
Threat name:
Eclipse Botnet
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/2000364
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Found malware configuration
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Protects files from modification
Sample tries to persist itself using cron
Sample tries to set files in /etc globally writable
Writes identical ELF files to multiple locations
Yara detected Eclipse Botnet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 2000364 Sample: arm7.elf Startdate: 07/11/2026 Architecture: LINUX Score: 100 73 141.98.10.86, 53179, 55678 HOSTBALTICLT Lithuania 2->73 89 Found malware configuration 2->89 91 Antivirus detection for dropped file 2->91 93 Antivirus / Scanner detection for submitted sample 2->93 95 3 other signatures 2->95 12 arm7.elf 2->12         started        signatures3 process4 process5 14 arm7.elf 12->14         started        process6 16 arm7.elf 14->16         started        process7 18 arm7.elf 16->18         started        file8 63 /usr/bin/systemctl, ASCII 18->63 dropped 97 Drops files in suspicious directories 18->97 22 arm7.elf sh 18->22         started        24 arm7.elf sh 18->24         started        26 arm7.elf sh 18->26         started        28 56 other processes 18->28 signatures9 process10 file11 32 sh crontab 22->32         started        36 sh 22->36         started        38 sh cp 24->38         started        40 sh cp 26->40         started        65 /root/.bash_profile, ASCII 28->65 dropped 67 /etc/init.d/.e, POSIX 28->67 dropped 69 /etc/crontab, ASCII 28->69 dropped 71 /etc/cron.d/.e, ASCII 28->71 dropped 99 Drops files in suspicious directories 28->99 101 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 28->101 103 Sample tries to persist itself using cron 28->103 42 sh chattr 28->42         started        44 sh chattr 28->44         started        46 sh chmod 28->46         started        48 51 other processes 28->48 signatures12 process13 file14 57 /var/spool/cron/crontabs/tmp.vqOOwc, ASCII 32->57 dropped 75 Sample tries to persist itself using cron 32->75 77 Executes the "crontab" command typically for achieving persistence 32->77 50 sh crontab 36->50         started        53 sh grep 36->53         started        59 /var/tmp/.e, ELF 38->59 dropped 79 Writes identical ELF files to multiple locations 38->79 81 Drops invisible ELF files 38->81 61 /usr/lib/.e, ELF 40->61 dropped 83 Protects files from modification 42->83 85 Sample tries to set files in /etc globally writable 46->85 55 find rm 48->55         started        signatures15 process16 signatures17 87 Executes the "crontab" command typically for achieving persistence 50->87
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/51634a8dde4e5421c695c9fc5fb1224b525a7939bafffae05c92f8516f29f2f2/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-11-07 08:28:28 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kfruvdo6jzkcdruvzh6f7mjcjnjfu6jzxl77vyc4sl4fc3zj6lza._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/261107-kdn8qaax21/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
System Network Configuration Discovery
Writes file to tmp directory
Reads system network configuration
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
File and Directory Permissions Modification
Malware Family:
mirai
Create hunting rule
Malicious:
True
Tags:
arm elf persistence detect-debug-environment service-scan
Link:
https://intel.virussign.com/intelligence/file/51634a8dde4e5421c695c9fc5fb1224b525a7939bafffae05c92f8516f29f2f2
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/51634a8dde4e5421c695c9fc5fb1224b525a7939bafffae05c92f8516f29f2f2

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 dd40528420f0750d8c8efa15d736345a1deebcc94ed0f857911e526fdae8b8e6

Mirai

elf 51634a8dde4e5421c695c9fc5fb1224b525a7939bafffae05c92f8516f29f2f2

(this sample)

  
Dropped by
SHA256 dd40528420f0750d8c8efa15d736345a1deebcc94ed0f857911e526fdae8b8e6
  
URLhaus
https://urlhaus.abuse.ch/url/4059011/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 b47135932aa9ffeca113c1ffb07d262d

Comments