MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6492877174515af3a9a3a8afab7d940fac7cf1ae8b0094527efec500ba6e1988. 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: 13


Intelligence 13 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6492877174515af3a9a3a8afab7d940fac7cf1ae8b0094527efec500ba6e1988
SHA3-384 hash: 3d52976a2124b964b3002dca2f0a8e665e32e596c5d83794ea8e26b4fb5c8dcd837f97e25535634fb461a6e9214d0b08
SHA1 hash: a53fd16ea1cd07ca8ecefd79faa3dd0263c47a4e
MD5 hash: 3a4bc45b6efcbf5ca408920399784d38
humanhash: mirror-equal-seven-ack
File name:arm7.kok
Download: download sample
Signature Mirai
Create hunting rule
File size:214'164 bytes
First seen:2026-01-10 01:10:53 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:FMXVi6jXnek8Ffc9YzCcdnca8Ml8dfIRdO2xm7T6vG:mXY6b8FEOdnca/l8dfIRdO5f6
TLSH T1C5244B96BD91DF11D5C221BAFA6F808D33132BB8D3FA7112DD106F61638A99B0E7B501
telfhash t190112f204dad557bf6c295ae8efdb23af63d02507705f4624a28fa2d0c03ac13421827
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
45
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

Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 expand gcc lolbin masquerade mirai rust
Link:
https://www.filescan.io/uploads/6961a74530368802bb7ec4d5/reports/4721a166-c801-4807-9373-4670e76c61b6/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-09T22:17:00Z UTC
Last seen:
2026-01-09T22:29:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu
Link:
https://opentip.kaspersky.com/6492877174515af3a9a3a8afab7d940fac7cf1ae8b0094527efec500ba6e1988/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5569c1c2-f363-4082-930a-b48a3e5150ec
Behavior Graph:
Download SVG
%3 guuid=bbd58c09-1900-0000-41ed-d49136140000 pid=5174 /usr/bin/sudo guuid=d4efed0b-1900-0000-41ed-d4914d140000 pid=5197 /tmp/sample.bin guuid=bbd58c09-1900-0000-41ed-d49136140000 pid=5174->guuid=d4efed0b-1900-0000-41ed-d4914d140000 pid=5197 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f7b55493-1cd0-44d9-9856-a9a211d5e771
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1847749
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: 1847749 Sample: arm7.kok.elf Startdate: 10/01/2026 Architecture: LINUX Score: 100 113 Multi AV Scanner detection for submitted file 2->113 115 Sample pipes script to sh (AV evasion) 2->115 10 arm7.kok.elf 2->10         started        13 udisksd dumpe2fs 2->13         started        15 udisksd dumpe2fs 2->15         started        17 48 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.kok.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 119 Sample tries to set files in /etc globally writable 19->119 121 Sample tries to persist itself using /etc/profile 19->121 123 Drops files in suspicious directories 19->123 125 3 other signatures 19->125 23 arm7.kok.elf sh 19->23         started        25 arm7.kok.elf sh 19->25         started        27 arm7.kok.elf sh 19->27         started        29 140 other processes 19->29 signatures7 process8 signatures9 32 sh cp 23->32         started        36 sh crontab 25->36         started        38 sh 25->38         started        40 sh cp 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        48 109 other processes 29->48 process10 file11 73 /usr/bin/.update, ELF 32->73 dropped 97 Writes identical ELF files to multiple locations 32->97 99 Drops invisible ELF files 32->99 101 Drops files in suspicious directories 32->101 75 /var/spool/cron/crontabs/tmp.cHjBYn, ASCII 36->75 dropped 103 Sample tries to persist itself using cron 36->103 105 Executes the "crontab" command typically for achieving persistence 36->105 50 sh crontab 38->50         started        77 /var/.update, ELF 40->77 dropped 79 /mnt/.update, ELF 42->79 dropped 81 /media/.update, ELF 44->81 dropped 83 /home/.update, ELF 46->83 dropped 85 /var/log/.update, ELF 48->85 dropped 87 /root/.update, ELF 48->87 dropped 107 Sample tries to kill multiple processes (SIGKILL) 48->107 109 Sample deletes itself 48->109 111 Terminates several processes with shell command 'killall' 48->111 53 S99network 48->53         started        55 .monitor 48->55         started        57 sh arm7.kok.elf 48->57         started        59 2 other processes 48->59 signatures12 process13 signatures14 117 Executes the "crontab" command typically for achieving persistence 50->117 61 S99network arm7.kok.elf 53->61         started        63 S99network arm7.kok.elf 53->63         started        65 S99network arm7.kok.elf 53->65         started        71 7 other processes 53->71 67 .monitor arm7.kok.elf 55->67         started        69 .monitor sleep 55->69         started        process15
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/6492877174515af3a9a3a8afab7d940fac7cf1ae8b0094527efec500ba6e1988
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6492877174515af3a9a3a8afab7d940fac7cf1ae8b0094527efec500ba6e1988/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/6492877174515af3a9a3a8afab7d940fac7cf1ae8b0094527efec500ba6e1988
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-10 01:11:34 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=msjio4lukfnphkndvcx2w7mub6whz4normajiut673cqbotodgea._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/260110-bj6khsas2d/
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/e435c2e0-d5f6-45e6-8a9a-df2aa9259986
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/6492877174515af3a9a3a8afab7d940fac7cf1ae8b0094527efec500ba6e1988

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 6492877174515af3a9a3a8afab7d940fac7cf1ae8b0094527efec500ba6e1988

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3749715/
  
Delivery method
Distributed via web download

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