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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b71380b12291b2ff7dd4f8d90ac958bee2c76939387acb4e460e21dc2973c47. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b71380b12291b2ff7dd4f8d90ac958bee2c76939387acb4e460e21dc2973c47
SHA3-384 hash: dbd18290f6afbb26439e1415be47cf833265aa425678770c75f582f3b0764ecad7bbf907cf6e07e9f48ca082b2983fde
SHA1 hash: af34a488a8e0641f7f86c7c7371ccfd7d92f2a82
MD5 hash: 8fc0c2ee21ababc557db6fcb58a022f2
humanhash: single-skylark-comet-golf
File name:armv7l
Download: download sample
Signature Mirai
Create hunting rule
File size:79'220 bytes
First seen:2026-10-11 19:03:42 UTC
Last seen:2026-10-12 05:51:24 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:hPQwXr+BxWU2KM/8lXj4ZL0knOdOrXhkVghgafzILEw3gTGMLP:JQAr+BSB8lXj4ZEdCisILEwWtLP
TLSH T1797302F2429A80A4C4A52533FB4A14963D2CE7B9EEDBF46B137B44580769E529F3C341
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) :79'220 bytes
File size (de-compressed) :186'868 bytes
Format:linux/arm
Unpacked file: c0088c6d8abf579e9e157bb249c4759702a935e3a3e7906e0fbb63b8b8a8717d

Intelligence

File Origin
# of uploads :
2
# of downloads :
82
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/bca17474-cc15-4b3b-8610-bce025edfd75/
Detection(s):
SecuriteInfo.com.Linux.Rootkit.420.25362.6262.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Collects information on the CPU
Sets a file as executable
Creates directories
Receives data from a server
Locks files
Connection attempt
Launching a process
Sends data to a server
Collects information on the RAM
Creating a file
Manages services
Runs as daemon
Kills processes
Sets a written file as executable
Changes owner for a written file
Substitutes an application name
Writes files to system subdirectory
Kills critical processes
Creates or modifies files in /cron to set up autorun
Deleting of the original file
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6acbddb2b6cd10625361e380/reports/25931305-fac2-4e46-bc3b-bda1eae274a2/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-10-11T13:20:00Z UTC
Last seen:
2026-10-12T18:11:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8b71380b12291b2ff7dd4f8d90ac958bee2c76939387acb4e460e21dc2973c47/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/41b2a4ae-59fd-43c0-9910-d91cb524c737
Behavior Graph:
Download SVG
%3 guuid=34613109-1a00-0000-ed75-ec86670b0000 pid=2919 /usr/bin/sudo guuid=5983fd0a-1a00-0000-ed75-ec866d0b0000 pid=2925 /tmp/sample.bin guuid=34613109-1a00-0000-ed75-ec86670b0000 pid=2919->guuid=5983fd0a-1a00-0000-ed75-ec866d0b0000 pid=2925 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/579225b2-1199-4465-9d77-2db50d7f646a
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1985572
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops invisible ELF files
Found strings related to Crypto-Mining
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1985572 Sample: armv7l.elf Startdate: 11/10/2026 Architecture: LINUX Score: 96 57 83.168.69.95, 56998, 57000, 57002 SKYPASS-ASPL Poland 2->57 59 daisy.ubuntu.com 2->59 61 Antivirus detection for dropped file 2->61 63 Antivirus / Scanner detection for submitted sample 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 2 other signatures 2->67 11 armv7l.elf 2->11         started        14 systemd snapd-env-generator 2->14         started        16 systemd snapd-env-generator 2->16         started        18 python3.8 dpkg 2->18         started        signatures3 process4 signatures5 77 Found strings related to Crypto-Mining 11->77 20 armv7l.elf 11->20         started        process6 process7 22 armv7l.elf 20->22         started        signatures8 69 Sample deletes itself 22->69 25 armv7l.elf 22->25         started        29 armv7l.elf 22->29         started        31 armv7l.elf 22->31         started        33 armv7l.elf 22->33         started        process9 file10 51 /usr/lib/systemd/.system-helper, ELF 25->51 dropped 53 /etc/rc.local, ASCII 25->53 dropped 55 /etc/cron.d/killer-helper, ASCII 25->55 dropped 71 Drops invisible ELF files 25->71 73 Sample tries to persist itself using cron 25->73 75 Sample tries to persist itself using System V runlevels 25->75 35 armv7l.elf sh 25->35         started        37 armv7l.elf sh 29->37         started        39 armv7l.elf iptables 29->39         started        41 armv7l.elf iptables-restore 29->41         started        43 3 other processes 29->43 signatures11 process12 process13 45 sh systemctl 35->45         started        47 sh systemctl 35->47         started        49 sh journalctl 37->49         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8b71380b12291b2ff7dd4f8d90ac958bee2c76939387acb4e460e21dc2973c47
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8b71380b12291b2ff7dd4f8d90ac958bee2c76939387acb4e460e21dc2973c47/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-10-11 19:04:24 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rnytqcysfens7565j6gzblevrpxcy5utsod2znhemdrb3quxhrdq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
antivm defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/261011-xq3m4azs6q/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
Changes its process name
Checks CPU configuration
Reads system network configuration
UPX packed file
Creates/modifies Cron job
Deletes log files
Enumerates active TCP sockets
Enumerates running processes
Modifies rc script
Modifies systemd
Deletes itself
Deletes journal logs
Modifies the /etc/hosts DNS resolution file
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:ELF_IoT_DVR_Botnet_Hama_UPX
Create hunting rule
Author:Serhii Kocherhan
Description:Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code
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: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: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 8b71380b12291b2ff7dd4f8d90ac958bee2c76939387acb4e460e21dc2973c47

(this sample)

Mirai

elf c0088c6d8abf579e9e157bb249c4759702a935e3a3e7906e0fbb63b8b8a8717d

  
URLhaus
https://urlhaus.abuse.ch/url/3925719/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 c0088c6d8abf579e9e157bb249c4759702a935e3a3e7906e0fbb63b8b8a8717d
  
Dropping
MD5 b8edc3c83d56b0d4c7768923492b8b9e

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