MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37bc4aae0bd9393c08597d04af5e2f289a10c44fa8f0f08260e0e51fa6910dc1. 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: 37bc4aae0bd9393c08597d04af5e2f289a10c44fa8f0f08260e0e51fa6910dc1
SHA3-384 hash: c2b7f8f0202d88e33111ffa2f7226639109af7b06c6c03579fb1ec63d0e527eeaa03b0fa9f31de9c7f78fe1d5e4fd713
SHA1 hash: 1173038a4f20c00c1e059906991c4dd8cf20f408
MD5 hash: bae2c10e169d23bd918c220984403476
humanhash: red-thirteen-comet-maine
File name:mips.kok
Download: download sample
Signature Mirai
Create hunting rule
File size:137'696 bytes
First seen:2026-01-14 00:18:11 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:jBauqtiqTN4T1bnac0x0cQErjnW+KnyLtSByodrL:jQh3iarLW+Kn+Gy2rL
TLSH T1D1D3C55E7E314F6DF3A8C23447B78F31975923D626E1C681E26CE5052EA034D681FBA8
telfhash t1cc21b00c4a7823e497765c892beeff77e5a130de0a226d338e11a9ada5bcd424d00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
61
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

Unix.Trojan.Mirai-10017641-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bash gafgyt lolbin masquerade mirai
Link:
https://www.filescan.io/uploads/6966e0d3b5214ecba5ef039f/reports/0f865d27-db1c-40a7-b9b6-e5da16012a97/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-01-13T18:05:00Z UTC
Last seen:
2026-01-15T07:26:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu
Link:
https://opentip.kaspersky.com/37bc4aae0bd9393c08597d04af5e2f289a10c44fa8f0f08260e0e51fa6910dc1/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3d655a98-95d7-4a0e-b6b4-211502a54e92
Behavior Graph:
Download SVG
%3 guuid=d49cfe30-1900-0000-d24f-f4bc67140000 pid=5223 /usr/bin/sudo guuid=a01bb933-1900-0000-d24f-f4bc68140000 pid=5224 /tmp/sample.bin guuid=d49cfe30-1900-0000-d24f-f4bc67140000 pid=5223->guuid=a01bb933-1900-0000-d24f-f4bc68140000 pid=5224 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f279e684-cb16-40ad-b853-84640ca67beb
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1850297
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 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: 1850297 Sample: mips.kok.elf Startdate: 14/01/2026 Architecture: LINUX Score: 100 102 91.92.241.12, 48146, 6969 THEZONEBG Bulgaria 2->102 104 109.202.202.202, 80 INIT7CH Switzerland 2->104 106 3 other IPs or domains 2->106 122 Multi AV Scanner detection for submitted file 2->122 11 mips.kok.elf 2->11         started        14 dash rm 2->14         started        16 dash rm 2->16         started        signatures3 process4 signatures5 134 Sample tries to kill multiple processes (SIGKILL) 11->134 136 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->136 18 mips.kok.elf 11->18         started        process6 file7 94 /var/spool/cron/root, ASCII 18->94 dropped 96 /var/spool/cron/crontabs/root, ASCII 18->96 dropped 98 /root/.bashrc, ASCII 18->98 dropped 100 11 other files (10 malicious) 18->100 dropped 124 Sample tries to set files in /etc globally writable 18->124 126 Sample tries to persist itself using /etc/profile 18->126 128 Drops files in suspicious directories 18->128 130 4 other signatures 18->130 22 mips.kok.elf sh 18->22         started        24 mips.kok.elf sh 18->24         started        26 mips.kok.elf sh 18->26         started        28 21 other processes 18->28 signatures8 process9 signatures10 31 sh .monitor 22->31         started        33 sh cp 24->33         started        37 sh S99backup0 26->37         started        138 Sample tries to kill a massive number of system processes 28->138 140 Sample tries to kill multiple processes (SIGKILL) 28->140 39 sh S99backup1 28->39         started        41 sh S99backup2 28->41         started        43 sh S99network 28->43         started        45 20 other processes 28->45 process11 file12 47 .monitor 31->47         started        84 /usr/bin/.update, ELF 33->84 dropped 108 Writes identical ELF files to multiple locations 33->108 110 Drops invisible ELF files 33->110 112 Drops files in suspicious directories 33->112 49 S99backup0 37->49         started        51 S99backup1 39->51         started        53 S99backup2 41->53         started        55 S99network 43->55         started        86 /var/spool/cron/crontabs/tmp.76RFnZ, ASCII 45->86 dropped 88 /var/log/.update, ELF 45->88 dropped 90 /var/jbx/shared/.update, ELF 45->90 dropped 92 /boot/.update, ELF 45->92 dropped 114 Sample deletes itself 45->114 116 Sample tries to persist itself using cron 45->116 118 Executes the "crontab" command typically for achieving persistence 45->118 120 Terminates several processes with shell command 'killall' 45->120 57 sh crontab 45->57         started        60 sh .update 45->60         started        62 sh .update 45->62         started        64 sh .update 45->64         started        signatures13 process14 signatures15 74 62 other processes 47->74 66 S99backup0 .update 49->66         started        76 43 other processes 49->76 68 S99backup1 .update 51->68         started        78 39 other processes 51->78 70 S99backup2 .update 53->70         started        80 37 other processes 53->80 72 S99network .update 55->72         started        82 37 other processes 55->82 132 Executes the "crontab" command typically for achieving persistence 57->132 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/37bc4aae0bd9393c08597d04af5e2f289a10c44fa8f0f08260e0e51fa6910dc1
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/37bc4aae0bd9393c08597d04af5e2f289a10c44fa8f0f08260e0e51fa6910dc1/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/37bc4aae0bd9393c08597d04af5e2f289a10c44fa8f0f08260e0e51fa6910dc1
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-14 00:18:29 UTC
File Type:
ELF32 Big (Exe)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g66evlql3e4tycczpuck6xrpfcnbbrcpvdypbata4dsr7jurbxaq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260114-alvelafv3a/
Behaviour
Reads runtime system information
System Network Configuration Discovery
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
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/04cde6b7-9fe6-4ab0-b465-2d3843257a05
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/37bc4aae0bd9393c08597d04af5e2f289a10c44fa8f0f08260e0e51fa6910dc1

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_irc_catcher
Create hunting rule
Author:@_lubiedo
Description:Find new ELF IRC samples
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 37bc4aae0bd9393c08597d04af5e2f289a10c44fa8f0f08260e0e51fa6910dc1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3749714/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3757321/

Comments