MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3735cfbf66d05d78bec77ce82b72f5da76edba554c8db173d9111f5a7b4dc96a. 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: 3735cfbf66d05d78bec77ce82b72f5da76edba554c8db173d9111f5a7b4dc96a
SHA3-384 hash: 528c8bc9501ba6d92c379d6d61a4bcb57bbea95d937dc8e70b33fb7bd7eb7509ce8d3ac0a0af92b1a1fb23205eee07fa
SHA1 hash: d1e9fe85ae948806be6155e4747ac8a655e544ce
MD5 hash: f43c9c97dbb59508862668b876c5714f
humanhash: triple-nine-lemon-blue
File name:mips.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:240'724 bytes
First seen:2026-01-01 18:35:55 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:Wf6k0S2GxmouARwHM4hy0PMaQwv8igQyaHWajhik55OyiTsE3oDlBjMfI2Bwrbbp:1+xmBjH8xa2aBOySjulB2zB4bPV
TLSH T15334E99A7A619F7DF368873487F34F30D75563D217E2DA80E16CE5045E2028E681FBA8
telfhash t12f31ffe4086dd1f9c20178bff22f361c6810847a8f4a2c375710c86d96ae98f5c94db9
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
55
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-10010119-0
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 bash fingerprint lolbin mirai
Link:
https://www.filescan.io/uploads/6956be9c127d6a14e0cb705e/reports/0e4f127a-17f3-460f-a8a8-6c70c348afb8/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-01-01T15:43:00Z UTC
Last seen:
2026-01-01T16:02:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu
Link:
https://opentip.kaspersky.com/3735cfbf66d05d78bec77ce82b72f5da76edba554c8db173d9111f5a7b4dc96a/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/d011f2fd-39a6-488c-827f-d63b43eb1ca2
Behavior Graph:
Download SVG
%3 guuid=f560452e-1900-0000-e5b8-4cb15d0c0000 pid=3165 /usr/bin/sudo guuid=fa217b30-1900-0000-e5b8-4cb15e0c0000 pid=3166 /tmp/sample.bin guuid=f560452e-1900-0000-e5b8-4cb15d0c0000 pid=3165->guuid=fa217b30-1900-0000-e5b8-4cb15e0c0000 pid=3166 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4982eec0-46a8-4590-adfd-389dfa63bb88
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1843236
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 dnsIp2 2 Behavior Graph ID: 1843236 Sample: mips.uhavenobotsxd.elf Startdate: 01/01/2026 Architecture: LINUX Score: 100 104 79.158.210.18, 80 TELEFONICA_DE_ESPANAES Spain 2->104 106 94.154.35.153, 33896, 33906, 33916 SELECTELRU Ukraine 2->106 108 15 other IPs or domains 2->108 124 Multi AV Scanner detection for submitted file 2->124 126 Sample pipes script to sh (AV evasion) 2->126 11 mips.uhavenobotsxd.elf 2->11         started        14 udisksd dumpe2fs 2->14         started        16 udisksd dumpe2fs 2->16         started        18 3 other processes 2->18 signatures3 process4 signatures5 138 Sample tries to kill multiple processes (SIGKILL) 11->138 140 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->140 20 mips.uhavenobotsxd.elf 11->20         started        process6 file7 96 /var/tmp/.monitor, POSIX 20->96 dropped 98 /var/spool/cron/root, ASCII 20->98 dropped 100 /var/spool/cron/crontabs/root, ASCII 20->100 dropped 102 11 other malicious files 20->102 dropped 130 Sample tries to set files in /etc globally writable 20->130 132 Sample tries to persist itself using /etc/profile 20->132 134 Drops files in suspicious directories 20->134 136 3 other signatures 20->136 24 mips.uhavenobotsxd.elf sh 20->24         started        26 mips.uhavenobotsxd.elf sh 20->26         started        28 mips.uhavenobotsxd.elf sh 20->28         started        30 21 other processes 20->30 signatures8 process9 signatures10 33 sh cp 24->33         started        37 sh crontab 26->37         started        39 sh 26->39         started        41 sh cp 28->41         started        142 Sample tries to kill multiple processes (SIGKILL) 30->142 43 sh S99backup0 30->43         started        45 sh S99backup1 30->45         started        47 sh S99backup2 30->47         started        49 19 other processes 30->49 process11 file12 86 /usr/bin/.update, ELF 33->86 dropped 110 Writes identical ELF files to multiple locations 33->110 112 Drops invisible ELF files 33->112 114 Drops files in suspicious directories 33->114 88 /var/spool/cron/crontabs/tmp.vB08IG, ASCII 37->88 dropped 116 Sample tries to persist itself using cron 37->116 118 Executes the "crontab" command typically for achieving persistence 37->118 51 sh crontab 39->51         started        90 /var/log/.update, ELF 41->90 dropped 54 S99backup0 43->54         started        56 S99backup1 45->56         started        58 S99backup2 47->58         started        92 /var/.update, ELF 49->92 dropped 94 /mnt/.update, ELF 49->94 dropped 120 Sample deletes itself 49->120 122 Terminates several processes with shell command 'killall' 49->122 60 S99network 49->60         started        62 .monitor 49->62         started        64 sh .update 49->64         started        66 3 other processes 49->66 signatures13 process14 signatures15 128 Executes the "crontab" command typically for achieving persistence 51->128 68 S99backup0 .update 54->68         started        76 29 other processes 54->76 70 S99backup1 .update 56->70         started        78 23 other processes 56->78 72 S99backup2 .update 58->72         started        80 21 other processes 58->80 74 S99network .update 60->74         started        82 19 other processes 60->82 84 18 other processes 62->84 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/3735cfbf66d05d78bec77ce82b72f5da76edba554c8db173d9111f5a7b4dc96a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3735cfbf66d05d78bec77ce82b72f5da76edba554c8db173d9111f5a7b4dc96a/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/3735cfbf66d05d78bec77ce82b72f5da76edba554c8db173d9111f5a7b4dc96a
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-01 18:36:17 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=g4247p3g2boxrpwhptucw4xv3j3o3osvjsg3c46zcepvu62nzfva._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/260101-w868kahk2s/
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
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
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/d64d04ee-438d-40b1-8c4f-f6e54f06e862
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/3735cfbf66d05d78bec77ce82b72f5da76edba554c8db173d9111f5a7b4dc96a

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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 3735cfbf66d05d78bec77ce82b72f5da76edba554c8db173d9111f5a7b4dc96a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3686386/
  
Delivery method
Distributed via web download

Comments