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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8ca62ebaef93e65dc655684e38b86ee912846951a0dfdce36887248d977e669. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8ca62ebaef93e65dc655684e38b86ee912846951a0dfdce36887248d977e669
SHA3-384 hash: d5eb3d4ecf36c7f898042b76fd356cf50f876bb2b265f3129e6f9a4ae303f0938392eeb8775e34e6eb8cdaa9e3d5a885
SHA1 hash: 0e3d7ba24beeb00d99c6ee5c19372509c2ba46a7
MD5 hash: 02780891a890a8c62bc07e0d40fb921a
humanhash: uniform-johnny-foxtrot-orange
File name:sever1078.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:608'288 bytes
First seen:2026-09-16 12:29:22 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:BGvlqbmQvFqBYBaPf19WuSoMz3FJ9QYrXV5/FY2QHp9AatrQ1LPZbGV1nb7YYmzs:QIMVcFNTvrlDYDtNYMVI1G
TLSH T162D4084BAE719F3DF764877187F34A20D269239317E1C581E2DCE1094E2029E6D6FB68
telfhash t141713fc77db522986d8c424a43cdda310e5a0c5e2ef61a2bcf5a55c7471b7c22f76c12
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 a300459f6bd29df095a925e7c8088e3bcc39c66244e0e1f287b376c9be0255ee
File size (compressed) :234'572 bytes
File size (de-compressed) :608'288 bytes
Format:linux/mips
Packed file: a300459f6bd29df095a925e7c8088e3bcc39c66244e0e1f287b376c9be0255ee

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
NL NL
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/5b876f38-936a-4ddf-ba2b-cb1ef3ef5792/
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29502.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Unix.Trojan.Mirai-10059006-0
Create hunting rule

Unix.Trojan.Mirai-10059216-0
Create hunting rule

Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/6aaa8bef370ac50624934769/reports/578f86bd-c859-4281-a531-1d859e58f4cd/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-09-16T10:38:00Z UTC
Last seen:
2026-09-16T10:53:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a8ca62ebaef93e65dc655684e38b86ee912846951a0dfdce36887248d977e669/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/2f6fadb1-599a-407d-b9a3-c1d39dfe5838
Behavior Graph:
Download SVG
%3 guuid=56524abe-1f00-0000-bbe2-0a0562070000 pid=1890 /usr/bin/sudo guuid=59c61cc1-1f00-0000-bbe2-0a0564070000 pid=1892 /tmp/sample.bin guuid=56524abe-1f00-0000-bbe2-0a0562070000 pid=1890->guuid=59c61cc1-1f00-0000-bbe2-0a0564070000 pid=1892 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a15fc32c-f7be-4861-944e-0a7ba5e9f3e2
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1973711
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Multi AV Scanner detection for submitted file
Sample tries to persist itself using cron
Suricata IDS alerts for network traffic
Uses known network protocols on non-standard ports
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1973711 Sample: sever1078.mips.elf Startdate: 16/09/2026 Architecture: LINUX Score: 100 87 208.36.198.66 XO-AS15-VerizonBusinessUS United States 2->87 89 165.176.234.77, 5555 WISCNET1-AS-WiscNetUS United States 2->89 91 99 other IPs or domains 2->91 93 Suricata IDS alerts for network traffic 2->93 95 Antivirus detection for dropped file 2->95 97 Antivirus / Scanner detection for submitted sample 2->97 99 3 other signatures 2->99 9 sever1078.mips.elf .sysd 2->9         started        13 systemd .sysd 2->13         started        15 systemd .sysd 2->15         started        17 5 other processes 2->17 signatures3 process4 file5 83 /var/tmp/.sysd, ELF 9->83 dropped 105 Drops invisible ELF files 9->105 19 sever1078.mips.elf sh 9->19         started        21 .sysd sh 9->21         started        23 sever1078.mips.elf sh 9->23         started        31 4 other processes 9->31 85 /var/tmp/.sysd.lock, ASCII 13->85 dropped 25 .sysd sh 13->25         started        33 4 other processes 13->33 27 .sysd sh 15->27         started        29 .sysd 15->29         started        35 3 other processes 15->35 signatures6 process7 process8 37 sh 19->37         started        39 sh 21->39         started        47 3 other processes 23->47 41 sh 25->41         started        43 sh 27->43         started        49 3 other processes 29->49 45 .sysd 31->45         started        51 2 other processes 31->51 53 3 other processes 33->53 process9 55 sh crontab 37->55         started        67 2 other processes 37->67 59 sh crontab 39->59         started        69 2 other processes 39->69 61 sh crontab 41->61         started        71 2 other processes 41->71 63 sh crontab 43->63         started        73 2 other processes 43->73 65 .sysd 45->65         started        file10 75 /var/spool/cron/crontabs/tmp.pULmAD, ASCII 55->75 dropped 101 Sample tries to persist itself using cron 55->101 103 Executes the "crontab" command typically for achieving persistence 55->103 77 /var/spool/cron/crontabs/tmp.Bp99C1, ASCII 59->77 dropped 79 /var/spool/cron/crontabs/tmp.Ax16Jk, ASCII 61->79 dropped 81 /var/spool/cron/crontabs/tmp.idcuLI, ASCII 63->81 dropped signatures11
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a8ca62ebaef93e65dc655684e38b86ee912846951a0dfdce36887248d977e669
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a8ca62ebaef93e65dc655684e38b86ee912846951a0dfdce36887248d977e669/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-09-16 12:25:37 UTC
File Type:
ELF32 Big (Exe)
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vdfgf25o7e7glxdfk2cohc4g52isqruvdig73trwrbzerwlx4zuq._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/260916-ppqcdaah59/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Reads system network configuration
Creates/modifies Cron job
Enumerates active TCP sockets
Enumerates running processes
Modifies systemd
Writes file to system bin folder
Executes dropped EXE
Modifies Watchdog functionality
Contacts a large (22240) amount of remote hosts
Creates a large amount of network flows
Family: Mirai
Malware Config
C2 Extraction:
bigbigvol.qd.je
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/a8ca62ebaef93e65dc655684e38b86ee912846951a0dfdce36887248d977e669

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_1ac392ca
Create hunting rule
Author:Elastic Security
Rule name:NSVPS_Mirai_Busybox_Staging
Create hunting rule
Author:sanad (NSVPS-SOC)
Description:Mirai-style busybox wget/tftp payload staging seen in NSVPS honeypot
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 a300459f6bd29df095a925e7c8088e3bcc39c66244e0e1f287b376c9be0255ee

Mirai

elf a8ca62ebaef93e65dc655684e38b86ee912846951a0dfdce36887248d977e669

(this sample)

  
Dropped by
SHA256 a300459f6bd29df095a925e7c8088e3bcc39c66244e0e1f287b376c9be0255ee
  
URLhaus
https://urlhaus.abuse.ch/url/3917730/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 b339d6ff2843425a5bd01d0c8945c89e

Comments