MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3d31d4c410ac9a896ec58d1dece1e980f126272723c9249f48c8fed7f3abca90. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3d31d4c410ac9a896ec58d1dece1e980f126272723c9249f48c8fed7f3abca90
SHA3-384 hash: e53d53545d4ef924799d944fbbc997863a5d3168fe964625f73415489cb0dfe95e0e4c148bea5336b433b3963d4cdbeb
SHA1 hash: 76ebda6deae84e3a16f9f6dbb697ab2471c67b0e
MD5 hash: 28ff788bdeb696b8782d716a1e8b1249
humanhash: princess-hotel-massachusetts-papa
File name:arm7.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:127'764 bytes
First seen:2025-11-29 09:57:57 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:D7T3qfCKgji/qYyNP2G/oiUafIc0ldBXkvgGlDczvSCfGH:D7Ta6KoeNGQiUafIc0ld+vgRzKCfGH
TLSH T1EDC33A16B9519F11D4C735BAFA9E414933136FF8D3FA31019D20AF6123CAA9B0FBA512
telfhash t142f0dc2ee01439dca3d9905cb0c3d11b18de22af2b04209397dc0a4b7933b123030c0f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
32
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-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 the time when the file was created, accessed, or modified
Deletes a file
Receives data from a server
Attempts to kill processes by name
Opens a port
Sends data to a server
Deleting a recently created file
Launching a process
Connection attempt
Sets a written file as executable
Creating a file
Changes access rights for a written file
Runs as daemon
Creating a process from a recently created file
Kills processes
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
android gcc mirai rust
Link:
https://www.filescan.io/uploads/692ac3bad0d5e7288b505126/reports/4207a66a-7c46-4a45-93ef-487afcfaeade/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-29T03:35:00Z UTC
Last seen:
2025-11-30T04:41:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/3d31d4c410ac9a896ec58d1dece1e980f126272723c9249f48c8fed7f3abca90/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4264673e-7ed8-402e-b5ab-12e510c3371c
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1822793
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: 1822793 Sample: arm7.uhavenobotsxd.elf Startdate: 29/11/2025 Architecture: LINUX Score: 100 87 104.167.16.104, 3141, 35232, 35234 YHSRV-ASN-393559US United States 2->87 89 94.154.35.153, 40690, 6969 SELECTELRU Ukraine 2->89 91 8 other IPs or domains 2->91 107 Multi AV Scanner detection for submitted file 2->107 11 arm7.uhavenobotsxd.elf 2->11         started        signatures3 process4 signatures5 115 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->115 14 arm7.uhavenobotsxd.elf 11->14         started        process6 file7 73 /var/spool/cron/root, ASCII 14->73 dropped 75 /var/spool/cron/crontabs/root, ASCII 14->75 dropped 77 /root/.bashrc, ASCII 14->77 dropped 79 7 other files (6 malicious) 14->79 dropped 117 Sample tries to set files in /etc globally writable 14->117 119 Sample tries to persist itself using /etc/profile 14->119 121 Drops files in suspicious directories 14->121 123 4 other signatures 14->123 18 arm7.uhavenobotsxd.elf sh 14->18         started        20 arm7.uhavenobotsxd.elf sh 14->20         started        22 arm7.uhavenobotsxd.elf sh 14->22         started        24 52 other processes 14->24 signatures8 process9 signatures10 27 sh .monitor 18->27         started        29 sh S99network 20->29         started        31 sh cp 22->31         started        109 Sample tries to kill a massive number of system processes 24->109 111 Sample tries to kill multiple processes (SIGKILL) 24->111 35 sh crontab 24->35         started        37 sh cp 24->37         started        39 arm7.uhavenobotsxd.elf sh 24->39         started        41 51 other processes 24->41 process11 file12 43 .monitor 27->43         started        45 S99network 29->45         started        81 /usr/bin/.update, ELF 31->81 dropped 93 Writes identical ELF files to multiple locations 31->93 95 Drops invisible ELF files 31->95 97 Drops files in suspicious directories 31->97 83 /var/spool/cron/crontabs/tmp.hOtxrO, ASCII 35->83 dropped 99 Sample tries to persist itself using cron 35->99 101 Executes the "crontab" command typically for achieving persistence 35->101 85 /boot/.update, ELF 37->85 dropped 47 sh arm7.uhavenobotsxd.elf 39->47         started        103 Sample deletes itself 41->103 105 Terminates several processes with shell command 'killall' 41->105 50 sh crontab 41->50         started        52 sh arm7.uhavenobotsxd.elf 41->52         started        54 sh arm7.uhavenobotsxd.elf 41->54         started        signatures13 process14 signatures15 56 .monitor arm7.uhavenobotsxd.elf 43->56         started        59 .monitor arm7.uhavenobotsxd.elf 43->59         started        61 .monitor arm7.uhavenobotsxd.elf 43->61         started        69 117 other processes 43->69 63 S99network arm7.uhavenobotsxd.elf 45->63         started        65 S99network arm7.uhavenobotsxd.elf 45->65         started        67 S99network arm7.uhavenobotsxd.elf 45->67         started        71 75 other processes 45->71 125 Sample reads /proc/mounts (often used for finding a writable filesystem) 47->125 127 Executes the "crontab" command typically for achieving persistence 50->127 process16 signatures17 113 Sample reads /proc/mounts (often used for finding a writable filesystem) 63->113
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/3d31d4c410ac9a896ec58d1dece1e980f126272723c9249f48c8fed7f3abca90
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3d31d4c410ac9a896ec58d1dece1e980f126272723c9249f48c8fed7f3abca90/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-29 08:30:33 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 36 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=huy5jraqvsnis3wfruo6zypjqdysmjzhepesjh2izd7np45lzkia._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/251129-lzmgpasrd1/
Behaviour
Command and Scripting Interpreter: Unix Shell
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
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/13119db3-44a8-475d-923a-3f12a874bce5
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/3d31d4c410ac9a896ec58d1dece1e980f126272723c9249f48c8fed7f3abca90

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_Generic_Threat_8299c877
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 3d31d4c410ac9a896ec58d1dece1e980f126272723c9249f48c8fed7f3abca90

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3686384/
  
Delivery method
Distributed via web download

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