MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 74f28772568490bbdb90de8d8faccd61be266af691d07c944e75b97c42819599. 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: 9


Intelligence 9 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 74f28772568490bbdb90de8d8faccd61be266af691d07c944e75b97c42819599
SHA3-384 hash: 78b317438564ed4052cb267db40af0ffba13306139ce046fe774993797c61d98f821543b3cf4e99aed90917b49021669
SHA1 hash: 061e417b4f57d5c051c4aaacbf3ab180af9b7c99
MD5 hash: 82a7302934a477007f4eced992e9c665
humanhash: mike-nebraska-pasta-delaware
File name:x86_32.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:87'028 bytes
First seen:2025-11-29 05:40:23 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:troMfBaKB52kaChK1Ik/cRluC0WvSmnnmLktOPehZZ:DfB3Aka0K1IrR4N+1noehZZ
TLSH T19C837CC5A743C4F4FE6212746137B7368A72E6391129DB4BCBB4F835DC1A602A61B36C
telfhash t1613157fe1abf0cd4a7c0e440820d6f213e59d77b265077b146b39935226bd8291bec39
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 :
32
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Changes access rights for a written file
Connection attempt
Runs as daemon
Kills processes
Opens a port
Launching a process
Sends data to a server
Creating a process from a recently created file
Creating a file
Deleting a recently created file
Deletes a file
Changes the time when the file was created, accessed, or modified
Receives data from a server
Sets a written file as executable
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/692a8778d0d5e7288b502b15/reports/e8cb1b8f-2e2a-44c8-8fc6-ba21ac58bcdd/overview
Result
Gathering data
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ad7b86fa-701a-4854-844e-3f50c6384e39
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1822729
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 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'
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1822729 Sample: x86_32.uhavenobotsxd.elf Startdate: 29/11/2025 Architecture: LINUX Score: 100 91 172.58.167.62 T-MOBILE-AS21928US United States 2->91 93 94.154.35.153, 40680, 6969 SELECTELRU Ukraine 2->93 95 6 other IPs or domains 2->95 99 Malicious sample detected (through community Yara rule) 2->99 101 Multi AV Scanner detection for submitted file 2->101 11 x86_32.uhavenobotsxd.elf 2->11         started        14 dash rm 2->14         started        16 dash tr 2->16         started        18 8 other processes 2->18 signatures3 process4 signatures5 129 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->129 20 x86_32.uhavenobotsxd.elf 11->20         started        process6 file7 79 /var/spool/cron/root, ASCII 20->79 dropped 81 /var/spool/cron/crontabs/root, ASCII 20->81 dropped 83 /root/.bashrc, ASCII 20->83 dropped 85 8 other files (7 malicious) 20->85 dropped 103 Sample tries to set files in /etc globally writable 20->103 105 Sample tries to persist itself using /etc/profile 20->105 107 Drops files in suspicious directories 20->107 109 4 other signatures 20->109 24 x86_32.uhavenobotsxd.elf sh 20->24         started        26 x86_32.uhavenobotsxd.elf 20->26         started        28 x86_32.uhavenobotsxd.elf sh 20->28         started        30 56 other processes 20->30 signatures8 process9 signatures10 33 sh S99network 24->33         started        35 x86_32.uhavenobotsxd.elf sh 26->35         started        37 x86_32.uhavenobotsxd.elf sh 26->37         started        49 2 other processes 26->49 39 sh crontab 28->39         started        43 sh 28->43         started        131 Sample tries to kill multiple processes (SIGKILL) 30->131 45 sh cp 30->45         started        47 sh .monitor 30->47         started        51 52 other processes 30->51 process11 file12 53 S99network 33->53         started        55 sh .update 35->55         started        58 sh .update 37->58         started        87 /var/spool/cron/crontabs/tmp.4By822, ASCII 39->87 dropped 115 Sample tries to persist itself using cron 39->115 117 Executes the "crontab" command typically for achieving persistence 39->117 60 sh crontab 43->60         started        89 /usr/bin/.update, ELF 45->89 dropped 119 Drops invisible ELF files 45->119 121 Drops files in suspicious directories 45->121 62 .monitor 47->62         started        64 sh .update 49->64         started        123 Sample tries to kill multiple processes (SIGKILL) 51->123 125 Sample deletes itself 51->125 127 Terminates several processes with shell command 'killall' 51->127 signatures13 process14 signatures15 66 S99network .update 53->66         started        69 S99network .update 53->69         started        71 S99network .update 53->71         started        77 63 other processes 53->77 111 Sample reads /proc/mounts (often used for finding a writable filesystem) 55->111 113 Executes the "crontab" command typically for achieving persistence 60->113 73 .monitor .update 62->73         started        75 .monitor sleep 62->75         started        process16 signatures17 97 Sample reads /proc/mounts (often used for finding a writable filesystem) 66->97
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/74f28772568490bbdb90de8d8faccd61be266af691d07c944e75b97c42819599
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/74f28772568490bbdb90de8d8faccd61be266af691d07c944e75b97c42819599/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-29 05:41:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 36 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=otzio4swqsilxw4q32gy7lgnmg7cm2xwshihzfcoow4xyqubswmq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/251129-gdhjds1kfz/
Behaviour
Reads runtime system information
Writes file to shm directory
Changes its process name
Modifies Bash startup script
Creates a large amount of network flows
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
Verdict:
Malicious
Tags:
trojan mirai gafgyt Unix.Trojan.Mirai-10001386-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/ab805714-156c-493d-bf56-0674a0d01c90
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/74f28772568490bbdb90de8d8faccd61be266af691d07c944e75b97c42819599

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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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 74f28772568490bbdb90de8d8faccd61be266af691d07c944e75b97c42819599

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3687976/
  
Delivery method
Distributed via web download

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