MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 76502965c67d00de1ae6705affe3517d1aa15732b184337deeacce723c620507. 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 11 File information Comments

SHA256 hash: 76502965c67d00de1ae6705affe3517d1aa15732b184337deeacce723c620507
SHA3-384 hash: c099760d0adbb87ecf18c19e9ba2386a0a882fd6f1d72b9801bf9eb08ba45f3b8b88b3e7182db252334d0bd71a09c89b
SHA1 hash: 6914ec7568bad295148ea6d9b99c8da45ee9da86
MD5 hash: d723127d19f2ed48eeeacb21d1d0abf6
humanhash: avocado-undress-orange-ohio
File name:x86_64.uhavenobotsxd
Download: download sample
Signature Mirai
File size:169'776 bytes
First seen:2026-01-03 16:59:48 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:c6IiyQnRmyr5sxvBpQraWT46KDb1kB/oXApdbYL:c6IiBRXr5ovA2KoRko9
TLSH T162F36C1AB78080FFC48AC37842EEB636D8B1782D1279765D5780FF257C99E21372E685
telfhash t12d41783818d1362c60fbc25bf31af96efeb108114af970a45f6ba9aadd477c81c61415
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 :
1
# of downloads :
43
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-01-03T14:07:00Z UTC
Last seen:
2026-01-04T01:46:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
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 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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1844234 Sample: x86_64.uhavenobotsxd.elf Startdate: 03/01/2026 Architecture: LINUX Score: 100 105 Malicious sample detected (through community Yara rule) 2->105 107 Multi AV Scanner detection for submitted file 2->107 109 Sample pipes script to sh (AV evasion) 2->109 10 x86_64.uhavenobotsxd.elf 2->10         started        13 udisksd dumpe2fs 2->13         started        15 udisksd dumpe2fs 2->15         started        17 77 other processes 2->17 process3 signatures4 137 Sample tries to kill multiple processes (SIGKILL) 10->137 139 Sample reads /proc/mounts (often used for finding a writable filesystem) 10->139 19 x86_64.uhavenobotsxd.elf 10->19         started        process5 file6 97 /var/tmp/.monitor, POSIX 19->97 dropped 99 /var/spool/cron/root, ASCII 19->99 dropped 101 /var/spool/cron/crontabs/root, ASCII 19->101 dropped 103 11 other malicious files 19->103 dropped 127 Sample tries to set files in /etc globally writable 19->127 129 Sample tries to persist itself using /etc/profile 19->129 131 Drops files in suspicious directories 19->131 133 3 other signatures 19->133 23 x86_64.uhavenobotsxd.elf sh 19->23         started        25 x86_64.uhavenobotsxd.elf sh 19->25         started        27 x86_64.uhavenobotsxd.elf sh 19->27         started        29 75 other processes 19->29 signatures7 process8 signatures9 32 sh .monitor 23->32         started        34 sh cp 25->34         started        38 sh crontab 27->38         started        40 sh 27->40         started        141 Sample tries to kill a massive number of system processes 29->141 143 Sample tries to kill multiple processes (SIGKILL) 29->143 42 sh S99backup0 29->42         started        44 sh S99backup1 29->44         started        46 sh S99backup2 29->46         started        48 73 other processes 29->48 process10 file11 50 .monitor 32->50         started        87 /usr/bin/.update, ELF 34->87 dropped 111 Writes identical ELF files to multiple locations 34->111 113 Drops invisible ELF files 34->113 115 Drops files in suspicious directories 34->115 89 /var/spool/cron/crontabs/tmp.AITnBi, ASCII 38->89 dropped 117 Sample tries to persist itself using cron 38->117 119 Executes the "crontab" command typically for achieving persistence 38->119 52 sh crontab 40->52         started        55 S99backup0 42->55         started        57 S99backup1 44->57         started        59 S99backup2 46->59         started        91 /var/log/.update, ELF 48->91 dropped 93 /var/.update, ELF 48->93 dropped 95 /mnt/.update, ELF 48->95 dropped 121 Sample tries to kill multiple processes (SIGKILL) 48->121 123 Sample deletes itself 48->123 125 Terminates several processes with shell command 'killall' 48->125 61 S99network 48->61         started        63 sh .update 48->63         started        65 sh .update 48->65         started        67 2 other processes 48->67 signatures12 process13 signatures14 77 94 other processes 50->77 135 Executes the "crontab" command typically for achieving persistence 52->135 69 S99backup0 .update 55->69         started        79 29 other processes 55->79 71 S99backup1 .update 57->71         started        81 29 other processes 57->81 73 S99backup2 .update 59->73         started        83 29 other processes 59->83 75 S99network .update 61->75         started        85 29 other processes 61->85 process15
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-01-03 17:00:31 UTC
File Type:
ELF64 Little (Exe)
AV detection:
12 of 37 (32.43%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai defense_evasion discovery execution linux persistence privilege_escalation
Behaviour
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
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7640640-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_33b4111a
Please note that we are no longer able to provide a coverage score for Virus Total.

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:ELF_IoT_Persistence_Hunt
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_33b4111a
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Author:Elastic Security
Rule name:unixredflags3
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 76502965c67d00de1ae6705affe3517d1aa15732b184337deeacce723c620507

(this sample)

  
Delivery method
Distributed via web download

Comments