MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c871aba9fde763bd2af432bfcd4d30882acb16befb5a0ce8f2bd0701377a645. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c871aba9fde763bd2af432bfcd4d30882acb16befb5a0ce8f2bd0701377a645
SHA3-384 hash: b452b31bd9d580c3d7c45eecfdbfc85ea1f30a635a0b9645c653f197434c510066acd5cae2edbcf9ab5dfa8602cb2e58
SHA1 hash: af3309d65b7a3e81e77b76b741bf8e2f39e2fb08
MD5 hash: 08321e16a9cf7aff58d84626152a52be
humanhash: blossom-undress-saturn-march
File name:arm7.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:210'068 bytes
First seen:2026-01-02 12:55:46 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:5Wd4MQXfiQkF6zlDz8Wgk/amk+5t8hqR41Z77XPtG:sd4MQXfiTFMFgk/ad+5t8hqR4vrP
TLSH T168243A56BD91DF11D5C221BAFA6F808D33135BB8D3FA7102DD206F61638A99B0E7B502
telfhash t18001fd50dc0c24f8746a90add2ff692be1e271ee7b113c560e20a27bae675c0703281f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
46
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10001386-0
Create hunting rule

Unix.Trojan.Mirai-10010127-0
Create hunting rule

Unix.Trojan.Mirai-10017351-0
Create hunting rule

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
base64 expand fingerprint gcc lolbin mirai rust
Link:
https://www.filescan.io/uploads/6957c06a8d1aa9829e2907aa/reports/dc680900-9fee-4876-8a67-e3938c9b7d98/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-02T10:04:00Z UTC
Last seen:
2026-01-02T23:55:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu
Link:
https://opentip.kaspersky.com/3c871aba9fde763bd2af432bfcd4d30882acb16befb5a0ce8f2bd0701377a645/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/b4fb84e7-869d-48de-a720-cadfe1e88055
Behavior Graph:
Download SVG
%3
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a0ca7954-15a3-4b8f-a8b9-2fc157895fc3
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1843583
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample pipes script to sh (AV evasion)
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Terminates several processes with shell command 'killall'
Writes identical ELF files to multiple locations
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1843583 Sample: arm7.uhavenobotsxd.elf Startdate: 02/01/2026 Architecture: LINUX Score: 100 97 Multi AV Scanner detection for submitted file 2->97 99 Sample pipes script to sh (AV evasion) 2->99 10 dash rm arm7.uhavenobotsxd.elf 2->10         started        13 dash rm 2->13         started        15 dash cut 2->15         started        17 70 other processes 2->17 process3 signatures4 127 Sample tries to kill multiple processes (SIGKILL) 10->127 129 Sample reads /proc/mounts (often used for finding a writable filesystem) 10->129 19 arm7.uhavenobotsxd.elf 10->19         started        process5 file6 89 /var/tmp/.monitor, POSIX 19->89 dropped 91 /var/spool/cron/root, ASCII 19->91 dropped 93 /var/spool/cron/crontabs/root, ASCII 19->93 dropped 95 7 other malicious files 19->95 dropped 117 Sample tries to set files in /etc globally writable 19->117 119 Sample tries to persist itself using /etc/profile 19->119 121 Drops files in suspicious directories 19->121 123 3 other signatures 19->123 23 arm7.uhavenobotsxd.elf sh 19->23         started        25 arm7.uhavenobotsxd.elf sh 19->25         started        27 arm7.uhavenobotsxd.elf sh 19->27         started        29 44 other processes 19->29 signatures7 process8 signatures9 32 sh S99network 23->32         started        34 sh cp 25->34         started        38 sh crontab 27->38         started        40 sh 27->40         started        131 Sample tries to kill multiple processes (SIGKILL) 29->131 42 sh cp 29->42         started        44 sh cp 29->44         started        46 sh cp 29->46         started        48 42 other processes 29->48 process10 file11 50 S99network 32->50         started        73 /usr/bin/.update, ELF 34->73 dropped 101 Writes identical ELF files to multiple locations 34->101 103 Drops invisible ELF files 34->103 105 Drops files in suspicious directories 34->105 75 /var/spool/cron/crontabs/tmp.gQ0oQG, ASCII 38->75 dropped 107 Sample tries to persist itself using cron 38->107 109 Executes the "crontab" command typically for achieving persistence 38->109 52 sh crontab 40->52         started        77 /var/.update, ELF 42->77 dropped 79 /mnt/.update, ELF 44->79 dropped 81 /media/.update, ELF 46->81 dropped 83 /var/log/.update, ELF 48->83 dropped 85 /root/.update, ELF 48->85 dropped 87 /home/.update, ELF 48->87 dropped 111 Sample tries to kill multiple processes (SIGKILL) 48->111 113 Sample deletes itself 48->113 115 Terminates several processes with shell command 'killall' 48->115 55 .monitor 48->55         started        57 sh arm7.uhavenobotsxd.elf 48->57         started        59 sh arm7.uhavenobotsxd.elf 48->59         started        signatures12 process13 signatures14 61 S99network arm7.uhavenobotsxd.elf 50->61         started        63 S99network arm7.uhavenobotsxd.elf 50->63         started        65 S99network arm7.uhavenobotsxd.elf 50->65         started        71 91 other processes 50->71 125 Executes the "crontab" command typically for achieving persistence 52->125 67 .monitor arm7.uhavenobotsxd.elf 55->67         started        69 .monitor sleep 55->69         started        process15
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/3c871aba9fde763bd2af432bfcd4d30882acb16befb5a0ce8f2bd0701377a645
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3c871aba9fde763bd2af432bfcd4d30882acb16befb5a0ce8f2bd0701377a645/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/3c871aba9fde763bd2af432bfcd4d30882acb16befb5a0ce8f2bd0701377a645
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-02 12:56:13 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hsdrvou73z3dxuvpimv7zvgtbcbkzmll5622btupfpihae3xuzcq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260102-p6hc4avkam/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
Writes file to shm directory
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates running processes
Looks up external IP address via web service
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Unexpected DNS network traffic destination
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/d2e03f3d-81ac-4b21-9f3f-c66dff79c805
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/3c871aba9fde763bd2af432bfcd4d30882acb16befb5a0ce8f2bd0701377a645

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Generic_Threat_8299c877
Create hunting rule
Author:Elastic Security
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 3c871aba9fde763bd2af432bfcd4d30882acb16befb5a0ce8f2bd0701377a645

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3686384/
  
Delivery method
Distributed via web download

Comments