MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27f5ac15860069a99ad3175072e216826ad04087171b99ab6882fc82b6f4a9c5. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27f5ac15860069a99ad3175072e216826ad04087171b99ab6882fc82b6f4a9c5
SHA3-384 hash: e23aaab597fa254bc682e380cfc7b58c16c8b38f4c9b61bffcda0f8734250ca5608df6b6cebbe9810278916484c51c93
SHA1 hash: 9d60666be0838f83b5f22c08a31b9ae435b14f21
MD5 hash: 3199cfa7642949646c1d69744fa08fa5
humanhash: crazy-artist-fifteen-robert
File name:x86_32.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:78'836 bytes
First seen:2025-11-21 23:03:19 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:YdNa84fThUTSECIAQrEkZT3/Igcs9T11bCELSa6mUT3d:NcSE5AQrEkZTAgcs1Z7L8N
TLSH T198736AC2E747C8F9ED660274A237E73B4672E53A0125DF06CB60B976DC16A01B32A35C
telfhash t1433127fb1a6e08ec9bc09500c36e9ed12d5ee677612037d5056368292357dc190bac39
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 :
38
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-10010127-0
Create hunting rule

Unix.Trojan.Mirai-10017351-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Changes access rights for a written file
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Runs as daemon
Receives data from a server
Creating a file
Kills processes
Opens a port
Sends data to a server
Launching a process
Creates or modifies files in /cron to set up autorun
Writes files to system directory
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
anti-vm mirai
Link:
https://www.filescan.io/uploads/6920efbb7d011c9c3a48447f/reports/b64990dd-acab-41ca-b54b-d835d03c5cdc/overview
Result
Gathering data
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/40dcd96e-e504-4b21-9009-4d6525d7f5b6
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1818928
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 reads /proc/mounts (often used for finding a writable filesystem)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1818928 Sample: x86_32.uhavenobotsxd.elf Startdate: 22/11/2025 Architecture: LINUX Score: 92 70 94.154.35.153, 59738, 6969 SELECTELRU Ukraine 2->70 72 109.202.202.202, 80 INIT7CH Switzerland 2->72 74 3 other IPs or domains 2->74 88 Malicious sample detected (through community Yara rule) 2->88 90 Multi AV Scanner detection for submitted file 2->90 10 x86_32.uhavenobotsxd.elf 2->10         started        13 dash rm 2->13         started        15 dash rm 2->15         started        signatures3 process4 signatures5 100 Sample reads /proc/mounts (often used for finding a writable filesystem) 10->100 17 x86_32.uhavenobotsxd.elf 10->17         started        process6 file7 58 /var/spool/cron/root, ASCII 17->58 dropped 60 /var/spool/cron/crontabs/root, ASCII 17->60 dropped 62 /root/.bashrc, ASCII 17->62 dropped 64 6 other malicious files 17->64 dropped 80 Sample tries to set files in /etc globally writable 17->80 82 Sample tries to persist itself using /etc/profile 17->82 84 Drops files in suspicious directories 17->84 86 3 other signatures 17->86 21 x86_32.uhavenobotsxd.elf 17->21         started        23 x86_32.uhavenobotsxd.elf sh 17->23         started        25 x86_32.uhavenobotsxd.elf sh 17->25         started        27 6 other processes 17->27 signatures8 process9 process10 29 x86_32.uhavenobotsxd.elf sh 21->29         started        31 x86_32.uhavenobotsxd.elf sh 21->31         started        33 x86_32.uhavenobotsxd.elf sh 21->33         started        35 x86_32.uhavenobotsxd.elf sh 21->35         started        37 sh crontab 23->37         started        41 sh 23->41         started        43 sh cp 25->43         started        45 x86_32.uhavenobotsxd.elf 27->45         started        47 4 other processes 27->47 file11 49 sh .sh 29->49         started        52 sh .sh 31->52         started        54 sh .sh 33->54         started        66 /var/spool/cron/crontabs/tmp.eqLqQB, ASCII 37->66 dropped 92 Sample tries to persist itself using cron 37->92 94 Executes the "crontab" command typically for achieving persistence 37->94 56 sh crontab 41->56         started        68 /usr/bin/.sh, ELF 43->68 dropped 96 Drops invisible ELF files 43->96 98 Drops files in suspicious directories 43->98 signatures12 process13 signatures14 76 Sample reads /proc/mounts (often used for finding a writable filesystem) 49->76 78 Executes the "crontab" command typically for achieving persistence 56->78
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/27f5ac15860069a99ad3175072e216826ad04087171b99ab6882fc82b6f4a9c5
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/27f5ac15860069a99ad3175072e216826ad04087171b99ab6882fc82b6f4a9c5/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-21 23:04:18 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=e722yfmgabu2tgwtc5ihfyqwqjvnaqehc4nztk3iql6ifnxuvhcq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/251121-21v38awrbz/
Behaviour
Reads runtime system information
Changes its process name
Modifies Bash startup script
Creates a large amount of network flows
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-10001386-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/a08c88bb-33a9-42f2-88c1-66f7d475042c
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/27f5ac15860069a99ad3175072e216826ad04087171b99ab6882fc82b6f4a9c5

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_b14f4c5d
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 27f5ac15860069a99ad3175072e216826ad04087171b99ab6882fc82b6f4a9c5

(this sample)

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

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