MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81131dc89cf8df4701c83df2d127bc8c97f98c20700d6c0d8958ece5836dfa28. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81131dc89cf8df4701c83df2d127bc8c97f98c20700d6c0d8958ece5836dfa28
SHA3-384 hash: bb9307445bdd7bb59f15fe5f458049af5ca061eb91ebd97253cd68d84c93e89959b016299dbbb6d154f5f05c9b15162e
SHA1 hash: 733cac5add81e24adca8b6bba971dfa22ec8a2bb
MD5 hash: addf03c127206c81239802bf3f6e3694
humanhash: robin-saturn-thirteen-two
File name:g6
Download: download sample
Signature Mirai
Create hunting rule
File size:92'776 bytes
First seen:2025-01-12 18:31:05 UTC
Last seen:2025-01-12 19:25:58 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:8mno+vWozK9SxJrwSmsJCHiaXd0deupRiealz7iNpSwBrzpy8+nIgIZgTeg:DuuZM6/aXd00ukiSwBHF+vJT
TLSH T1A893185AFD815B41C4D512BBBE1E529E33076BA8E3EA7213DD101B2433CAA1F0F67946
telfhash t192c080a5457047c8375503dc65c8c47c646835272a065527adbd1f1700e65d07085195
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
139
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-9441505-0
Create hunting rule

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67840aa32c8240e189bc2712linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Deleting a recently created file
Launching a process
Manages services
Connection attempt
Collects information on the network activity
Creating a file
Creating a file in the %temp% directory
Kills processes
Opens a port
Receives data from a server
Sets a written file as executable
Sends data to a server
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug
Link:
https://www.filescan.io/uploads/67840aa37c7460158e6b5a70/reports/d095dc83-6e80-41b4-9bf4-6ddd56b44c65/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
4
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/81131dc89cf8df4701c83df2d127bc8c97f98c20700d6c0d8958ece5836dfa28
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fc6d7f31-847d-43aa-9a10-8a20a0b9b2a8
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1589546
Signature
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1589546 Sample: g6.elf Startdate: 12/01/2025 Architecture: LINUX Score: 64 58 Multi AV Scanner detection for submitted file 2->58 9 dash rm g6.elf 2->9         started        13 dash rm 2->13         started        15 xfce4-panel wrapper-2.0 2->15         started        17 6 other processes 2->17 process3 file4 52 /tmp/crontab.tmp, troff 9->52 dropped 54 /etc/init.d/hello, Bourne-Again 9->54 dropped 60 Sample tries to kill multiple processes (SIGKILL) 9->60 62 Drops files in suspicious directories 9->62 19 g6.elf sh 9->19         started        21 g6.elf 9->21         started        23 g6.elf sh 9->23         started        25 g6.elf sh 9->25         started        signatures5 process6 process7 27 sh crontab 19->27         started        31 g6.elf 21->31         started        33 sh systemctl 23->33         started        35 sh 25->35         started        file8 56 /var/spool/cron/crontabs/tmp.XY2RHy, troff 27->56 dropped 64 Sample tries to persist itself using cron 27->64 66 Executes the "crontab" command typically for achieving persistence 27->66 37 g6.elf 31->37         started        39 g6.elf 31->39         started        41 g6.elf 31->41         started        43 2 other processes 31->43 signatures9 process10 process11 45 g6.elf 37->45         started        48 g6.elf 39->48         started        50 g6.elf 41->50         started        signatures12 68 Sample tries to kill multiple processes (SIGKILL) 45->68
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81131dc89cf8df4701c83df2d127bc8c97f98c20700d6c0d8958ece5836dfa28
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81131dc89cf8df4701c83df2d127bc8c97f98c20700d6c0d8958ece5836dfa28/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-12 18:32:05 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qejr3se47dpuoaoihxzncj54rsl7tdbaoagwydmjldwola3n7iua._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery execution persistence privilege_escalatio privilege_escalation
Link:
https://tria.ge/reports/250112-w6lh3swmgl/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
Writes file to tmp directory
Changes its process name
Creates/modifies Cron job
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
Executes dropped EXE
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9441505-0
YARA:
n/a
Link:
https://app.threat.zone/submission/cc12c4dc-4320-482c-a694-decddc02b80b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/81131dc89cf8df4701c83df2d127bc8c97f98c20700d6c0d8958ece5836dfa28

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 81131dc89cf8df4701c83df2d127bc8c97f98c20700d6c0d8958ece5836dfa28

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3398105/
  
Delivery method
Distributed via web download

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