MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 385d6d1f1e0740de185d59dd29e1a95ae3651c76755575683b26466aa852842e. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 385d6d1f1e0740de185d59dd29e1a95ae3651c76755575683b26466aa852842e
SHA3-384 hash: 35ac230169a0262d0d330f2d022108ba5ab40741476e43c4c43188842a0ca69abba2c7dce069281b79263f6e9d7af5ba
SHA1 hash: 2277c6ac304ea1ddd7b9f8781aa8fe644de00fcb
MD5 hash: 4d56f00bb28cb84a058a1d7916b18863
humanhash: mockingbird-wyoming-speaker-idaho
File name:arm.kok
Download: download sample
Signature Mirai
Create hunting rule
File size:108'020 bytes
First seen:2026-01-05 06:38:31 UTC
Last seen:2026-01-09 02:57:48 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:Ol8bUKwzXPCpe1OxKbuZu9NQDX9fR0DjwGC62n/Lj/Oe1sV8TfRpj8KvRhfo:Ol8b6z6zxxAkfG32njpMYjw
TLSH T135B34B92FC81E612C6C522B7FB1E428D771747B8D3EA32039E15AF21378B52A0E7B551
telfhash t1d0f05cd1c2341eec63d6161545b873115afd713f672014be28a87e9f116249bb02492e
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

Intelligence

File Origin
# of uploads :
4
# of downloads :
75
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gafgyt masquerade mirai rust
Link:
https://www.filescan.io/uploads/695b5c8f7d55b68cb20d0453/reports/6c0571b9-bbf1-49e7-86ff-9a4fca05fd7b/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-05T03:49:00Z UTC
Last seen:
2026-01-05T06:43:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Gafgyt.gu HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij
Link:
https://opentip.kaspersky.com/385d6d1f1e0740de185d59dd29e1a95ae3651c76755575683b26466aa852842e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/536c98ad-b53a-4ebe-91a3-6b53d02ab38b
Behavior Graph:
Download SVG
%3 guuid=f84a275e-3c00-0000-8e74-2e99a9030000 pid=937 /usr/bin/sudo guuid=59bf8660-3c00-0000-8e74-2e99aa030000 pid=938 /tmp/sample.bin guuid=f84a275e-3c00-0000-8e74-2e99a9030000 pid=937->guuid=59bf8660-3c00-0000-8e74-2e99aa030000 pid=938 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ad4ecde8-e0fc-46f2-bbf9-51ea571f1d81
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1844716
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: 1844716 Sample: arm.kok.elf Startdate: 05/01/2026 Architecture: LINUX Score: 100 94 45.141.24.65, 10686, 10810, 10858 SPECTRAIPSpectraIPBVNL Netherlands 2->94 96 68.235.46.61, 53 TZULOUS United States 2->96 98 12 other IPs or domains 2->98 100 Multi AV Scanner detection for submitted file 2->100 102 Connects to many ports of the same IP (likely port scanning) 2->102 11 arm.kok.elf 2->11         started        signatures3 process4 signatures5 124 Sample tries to kill multiple processes (SIGKILL) 11->124 126 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->126 14 arm.kok.elf 11->14         started        process6 file7 86 /var/spool/cron/root, ASCII 14->86 dropped 88 /var/spool/cron/crontabs/root, ASCII 14->88 dropped 90 /root/.bashrc, ASCII 14->90 dropped 92 11 other files (10 malicious) 14->92 dropped 128 Sample tries to set files in /etc globally writable 14->128 130 Sample tries to persist itself using /etc/profile 14->130 132 Drops files in suspicious directories 14->132 134 4 other signatures 14->134 18 arm.kok.elf sh 14->18         started        20 arm.kok.elf sh 14->20         started        22 arm.kok.elf sh 14->22         started        24 62 other processes 14->24 signatures8 process9 signatures10 27 sh S99backup0 18->27         started        29 sh S99backup1 20->29         started        31 sh S99backup2 22->31         started        120 Sample tries to kill a massive number of system processes 24->120 122 Sample tries to kill multiple processes (SIGKILL) 24->122 33 sh S99network 24->33         started        35 sh cp 24->35         started        39 sh crontab 24->39         started        41 52 other processes 24->41 process11 file12 43 S99backup0 27->43         started        45 S99backup1 29->45         started        47 S99backup2 31->47         started        49 S99network 33->49         started        76 /usr/bin/.update, ELF 35->76 dropped 106 Writes identical ELF files to multiple locations 35->106 108 Drops invisible ELF files 35->108 110 Drops files in suspicious directories 35->110 78 /var/spool/cron/crontabs/tmp.v63S1X, ASCII 39->78 dropped 112 Sample tries to persist itself using cron 39->112 114 Executes the "crontab" command typically for achieving persistence 39->114 80 /var/log/.update, ELF 41->80 dropped 82 /var/jbx/shared/.update, ELF 41->82 dropped 84 /boot/.update, ELF 41->84 dropped 116 Sample deletes itself 41->116 118 Terminates several processes with shell command 'killall' 41->118 51 sh crontab 41->51         started        54 .monitor 41->54         started        56 sh .update 41->56         started        signatures13 process14 signatures15 58 S99backup0 .update 43->58         started        66 113 other processes 43->66 60 S99backup1 .update 45->60         started        68 109 other processes 45->68 62 S99backup2 .update 47->62         started        70 101 other processes 47->70 64 S99network .update 49->64         started        72 97 other processes 49->72 104 Executes the "crontab" command typically for achieving persistence 51->104 74 2 other processes 54->74 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/385d6d1f1e0740de185d59dd29e1a95ae3651c76755575683b26466aa852842e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/385d6d1f1e0740de185d59dd29e1a95ae3651c76755575683b26466aa852842e/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/385d6d1f1e0740de185d59dd29e1a95ae3651c76755575683b26466aa852842e
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-05 06:39:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
9 of 23 (39.13%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hbow2hy6a5an4gc5lhostynjllrwkhdwovkxk2b3ezdgvkcsqqxa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/260105-hecj7ssncy/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/801fe7ae-1e81-4db6-b247-96d938c01f1b
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/385d6d1f1e0740de185d59dd29e1a95ae3651c76755575683b26466aa852842e

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_d94e1020
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 385d6d1f1e0740de185d59dd29e1a95ae3651c76755575683b26466aa852842e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3749723/
  
Delivery method
Distributed via web download

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