MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dd62bf1f88c40246c6aff0972fcc14798ab67dc6e90f10fbc1b966127f42ff11. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dd62bf1f88c40246c6aff0972fcc14798ab67dc6e90f10fbc1b966127f42ff11
SHA3-384 hash: a30412a0f7299bd5c720372be9db0ef851613529a8b353bb5a3b1b2b820058b4f04748bfc5033e71882968fd24158852
SHA1 hash: aedf9e00309371d9407cfcdec9ea06392c8ffeda
MD5 hash: f1ff602012928df183d9a53d0a915799
humanhash: blossom-magnesium-mike-three
File name:arm7.kok
Download: download sample
Signature Mirai
Create hunting rule
File size:129'244 bytes
First seen:2026-01-03 18:32:35 UTC
Last seen:2026-01-04 12:59:21 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:i5pLJFb5wKDMa22C5B1nLE1iZNjLuztDOpOMm:i5pLJFFwOMa22C5B1nLMiZ8zxO0Mm
TLSH T163C32956B9929F01D4C735FAFB9E414933136FB8D3FA71019D206FA1238A99B0F7A112
telfhash t184e02b5bf65004cc5bf1062158e4311ad6ee35b40b24545974bc8a4fc1225d1713d00e
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
40
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
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:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
gcc masquerade rust
Link:
https://www.filescan.io/uploads/695960ee8d1aa9829e29bd1c/reports/83d38aec-207a-49f0-8a4b-2ecbde3a3c94/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-03T16:43:00Z UTC
Last seen:
2026-01-04T12:57:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/dd62bf1f88c40246c6aff0972fcc14798ab67dc6e90f10fbc1b966127f42ff11/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3a3f4ce2-ffaf-483c-9873-d82b1af9278c
Behavior Graph:
Download SVG
%3 guuid=910c7c9d-1a00-0000-2912-5a0f180b0000 pid=2840 /usr/bin/sudo guuid=90e59ca0-1a00-0000-2912-5a0f1d0b0000 pid=2845 /tmp/sample.bin guuid=910c7c9d-1a00-0000-2912-5a0f180b0000 pid=2840->guuid=90e59ca0-1a00-0000-2912-5a0f1d0b0000 pid=2845 execve
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/002e9333-9711-41ec-8ab2-21a65d8605fe
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1844266
Signature
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
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill a massive number of system processes
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 dnsIp2 2 Behavior Graph ID: 1844266 Sample: arm7.kok.elf Startdate: 03/01/2026 Architecture: LINUX Score: 100 92 95.161.128.53, 10447, 12899, 1403 TIERA-ASRU Russian Federation 2->92 94 45.11.18.203, 10447, 12899, 1403 COMBAHTONcombahtonGmbHDE Germany 2->94 96 20 other IPs or domains 2->96 98 Multi AV Scanner detection for submitted file 2->98 100 Connects to many ports of the same IP (likely port scanning) 2->100 11 arm7.kok.elf 2->11         started        signatures3 process4 signatures5 106 Sample tries to kill multiple processes (SIGKILL) 11->106 108 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->108 14 arm7.kok.elf 11->14         started        process6 file7 84 /var/spool/cron/root, ASCII 14->84 dropped 86 /var/spool/cron/crontabs/root, ASCII 14->86 dropped 88 /root/.bashrc, ASCII 14->88 dropped 90 7 other files (6 malicious) 14->90 dropped 124 Sample tries to set files in /etc globally writable 14->124 126 Sample tries to persist itself using /etc/profile 14->126 128 Drops files in suspicious directories 14->128 130 4 other signatures 14->130 18 arm7.kok.elf sh 14->18         started        20 arm7.kok.elf sh 14->20         started        22 arm7.kok.elf sh 14->22         started        24 85 other processes 14->24 signatures8 process9 signatures10 27 sh S99network 18->27         started        29 sh cp 20->29         started        33 sh crontab 22->33         started        35 sh 22->35         started        102 Sample tries to kill a massive number of system processes 24->102 104 Sample tries to kill multiple processes (SIGKILL) 24->104 37 sh cp 24->37         started        39 sh cp 24->39         started        41 sh cp 24->41         started        43 83 other processes 24->43 process11 file12 45 S99network 27->45         started        66 /usr/bin/.update, ELF 29->66 dropped 110 Writes identical ELF files to multiple locations 29->110 112 Drops invisible ELF files 29->112 114 Drops files in suspicious directories 29->114 68 /var/spool/cron/crontabs/tmp.iSrVAA, ASCII 33->68 dropped 116 Sample tries to persist itself using cron 33->116 118 Executes the "crontab" command typically for achieving persistence 33->118 47 sh crontab 35->47         started        70 /var/jbx/shared/.update, ELF 37->70 dropped 72 /var/log/.update, ELF 39->72 dropped 74 /var/.update, ELF 41->74 dropped 76 /root/.update, ELF 43->76 dropped 78 /mnt/.update, ELF 43->78 dropped 80 /media/.update, ELF 43->80 dropped 82 2 other malicious files 43->82 dropped 120 Sample deletes itself 43->120 122 Terminates several processes with shell command 'killall' 43->122 50 .monitor 43->50         started        52 sh arm7.kok.elf 43->52         started        signatures13 process14 signatures15 54 S99network arm7.kok.elf 45->54         started        56 S99network arm7.kok.elf 45->56         started        58 S99network arm7.kok.elf 45->58         started        64 83 other processes 45->64 132 Executes the "crontab" command typically for achieving persistence 47->132 60 .monitor arm7.kok.elf 50->60         started        62 .monitor sleep 50->62         started        process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/dd62bf1f88c40246c6aff0972fcc14798ab67dc6e90f10fbc1b966127f42ff11
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/dd62bf1f88c40246c6aff0972fcc14798ab67dc6e90f10fbc1b966127f42ff11/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-03 19:22:00 UTC
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3vrl6h4iyqbenrvp6cls7taupgflm7og5ehrb66bxftbe72c74iq._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/260103-w64pnacm2s/
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
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Unexpected DNS network traffic destination
Contacts a large (16223) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/036b52a1-e947-412b-b5fe-c181aa604789
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/dd62bf1f88c40246c6aff0972fcc14798ab67dc6e90f10fbc1b966127f42ff11

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 dd62bf1f88c40246c6aff0972fcc14798ab67dc6e90f10fbc1b966127f42ff11

(this sample)

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

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