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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d03ef8fdb39302e0bff56f9ed088e6aa1775b6979ba540ff801bbc7047d97c09. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d03ef8fdb39302e0bff56f9ed088e6aa1775b6979ba540ff801bbc7047d97c09
SHA3-384 hash: 7a65b254c75ca2294110ca57f04cc9ca6b366e2d555c7c761cac5d6a5e8a973acd5456f411cc50384d2724a2171eef10
SHA1 hash: 0de7032ae896aa39333d00e30a95cfe8cd8dd6c2
MD5 hash: 1ee642b903c672fdfa4b851eb3d040ff
humanhash: cold-pip-seven-romeo
File name:reaver.arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:76'784 bytes
First seen:2026-08-29 03:08:58 UTC
Last seen:2026-08-29 10:10:38 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:1ZWPBs6naxx+dZgYU4hSw9WDjVcAo7Y3ZLhp4ubFc1NL2DvQF/gf2:1ZWC+vgAHwBj/JgyFNUZge
TLSH T1FF7302A2470DD3FFB9388074303392C39D265D698578391962419697C6937FABBA0CEF
Magika elf
Reporter abuse_ch
Tags:elf UPX
File size (compressed) :76'784 bytes
File size (de-compressed) :189'252 bytes
Format:linux/arm
Unpacked file: 31148b2ad6a4ea5e59db250e98e181ca14a25f2921f58dfeacb2f42ddb1c7147

Intelligence

File Origin
# of uploads :
2
# of downloads :
69
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/eeb2a533-749b-4a58-ae05-5ce1f430332e/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Kills processes
Launching a process
Runs as daemon
Changes owner for a written file
Changes access rights for a written file
Opens a port
Receives data from a server
Changes the time when the file was created, accessed, or modified
Connection attempt
Gains root access
Creating a file
Creates or modifies symbolic links
Sets a written file as executable
Sends data to a server
Substitutes an application name
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Deleting of the original file
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a924d610eea68330a807dfc/reports/11d19240-195d-4639-84d3-4d2210ae035f/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
2
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/d03ef8fdb39302e0bff56f9ed088e6aa1775b6979ba540ff801bbc7047d97c09
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-29T00:54:00Z UTC
Last seen:
2026-08-31T00:10:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/d03ef8fdb39302e0bff56f9ed088e6aa1775b6979ba540ff801bbc7047d97c09/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8eba3a4a-cd11-499a-9abd-d2e0486eb357
Behavior Graph:
Download SVG
%3 guuid=eedc4949-1700-0000-8f6a-4728730d0000 pid=3443 /usr/bin/sudo guuid=3e04d94c-1700-0000-8f6a-4728780d0000 pid=3448 /tmp/sample.bin guuid=eedc4949-1700-0000-8f6a-4728730d0000 pid=3443->guuid=3e04d94c-1700-0000-8f6a-4728780d0000 pid=3448 execve
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ff85a5e9-a667-4b9d-bd55-883b18dccf1d
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1965616
Signature
Creates /etc/ld.so.preload
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Found strings related to Crypto-Mining
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
Protects files from modification
Sample deletes itself
Sample is packed with UPX
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
Writes identical ELF files to multiple locations
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1965616 Sample: reaver.arm6.elf Startdate: 29/08/2026 Architecture: LINUX Score: 100 122 176.65.139.137, 48452, 48454, 48456 STORMINDUSTRIESHostingServicesUS Netherlands 2->122 124 217.60.195.187, 1900 NETPOOLIN Netherlands 2->124 126 daisy.ubuntu.com 2->126 138 Malicious sample detected (through community Yara rule) 2->138 140 Multi AV Scanner detection for submitted file 2->140 142 Yara detected Mirai 2->142 144 2 other signatures 2->144 12 reaver.arm6.elf 2->12         started        16 python3.8 dpkg 2->16         started        signatures3 process4 file5 114 /var/lib/syslogd-rotate.bak, ELF 12->114 dropped 116 /usr/lib/syslogd-rotate, ELF 12->116 dropped 118 /root/.bashrc, ASCII 12->118 dropped 120 14 other files (12 malicious) 12->120 dropped 152 Found strings related to Crypto-Mining 12->152 154 Sample tries to set files in /etc globally writable 12->154 156 Writes identical ELF files to multiple locations 12->156 158 8 other signatures 12->158 18 reaver.arm6.elf 12->18         started        21 reaver.arm6.elf sh 12->21         started        23 reaver.arm6.elf exe 12->23         started        25 16 other processes 12->25 signatures6 process7 file8 112 /tmp/reaver.arm6.elf.salt, data 18->112 dropped 28 reaver.arm6.elf 18->28         started        30 reaver.arm6.elf 18->30         started        46 2 other processes 18->46 32 sh crontab 21->32         started        36 sh 21->36         started        38 reaver.arm6.elf 23->38         started        40 chattr chattr 23->40         started        42 reaver.arm6.elf 23->42         started        148 Protects files from modification 25->148 44 sh crontab 25->44         started        signatures9 process10 file11 48 reaver.arm6.elf syslogd-rotate 28->48         started        50 reaver.arm6.elf syslogd-rotate 28->50         started        52 reaver.arm6.elf syslogd-rotate 28->52         started        54 reaver.arm6.elf 30->54         started        56 reaver.arm6.elf 30->56         started        58 reaver.arm6.elf 30->58         started        110 /var/spool/cron/crontabs/tmp.49NDth, ASCII 32->110 dropped 128 Sample tries to persist itself using cron 32->128 130 Executes the "crontab" command typically for achieving persistence 32->130 60 sh crontab 36->60         started        132 Protects files from modification 38->132 signatures12 process13 signatures14 63 syslogd-rotate exe 48->63         started        65 syslogd-rotate chattr 48->65         started        68 syslogd-rotate chattr 48->68         started        76 5 other processes 48->76 70 syslogd-rotate exe 50->70         started        78 7 other processes 50->78 72 syslogd-rotate exe 52->72         started        80 7 other processes 52->80 74 reaver.arm6.elf syslogd-rotate 54->74         started        150 Executes the "crontab" command typically for achieving persistence 60->150 process15 signatures16 82 syslogd-rotate chattr 63->82         started        93 6 other processes 63->93 134 Protects files from modification 65->134 85 syslogd-rotate chattr 70->85         started        95 6 other processes 70->95 87 syslogd-rotate chattr 72->87         started        89 syslogd-rotate chattr 72->89         started        97 5 other processes 72->97 91 syslogd-rotate exe 74->91         started        99 7 other processes 74->99 process17 signatures18 136 Protects files from modification 82->136 101 syslogd-rotate chattr 91->101         started        104 syslogd-rotate 91->104         started        106 syslogd-rotate 91->106         started        108 4 other processes 91->108 process19 signatures20 146 Protects files from modification 101->146
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d03ef8fdb39302e0bff56f9ed088e6aa1775b6979ba540ff801bbc7047d97c09
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d03ef8fdb39302e0bff56f9ed088e6aa1775b6979ba540ff801bbc7047d97c09/
Threat name:
Linux.Backdoor.Miraiagen
Create hunting rule
Status:
Suspicious
First seen:
2026-08-29 03:09:24 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2a7pr7ntsmbobp7vn6pnbchgvilxlnuxtosub74ado6har6zpqeq._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion discovery exection execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260829-dnlr1seg56/
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Reads system network configuration
Modifies Bash startup script
UPX packed file
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates active TCP sockets
Modifies init.d
Modifies rc script
Modifies systemd
Deletes itself
Modifies the /etc/hosts DNS resolution file
Modifies the dynamic linker configuration file
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/d03ef8fdb39302e0bff56f9ed088e6aa1775b6979ba540ff801bbc7047d97c09

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:ELF_IoT_DVR_Botnet_Hama_UPX
Create hunting rule
Author:Serhii Kocherhan
Description:Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
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:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf d03ef8fdb39302e0bff56f9ed088e6aa1775b6979ba540ff801bbc7047d97c09

(this sample)

Mirai

elf 31148b2ad6a4ea5e59db250e98e181ca14a25f2921f58dfeacb2f42ddb1c7147

  
URLhaus
https://urlhaus.abuse.ch/url/3909454/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 31148b2ad6a4ea5e59db250e98e181ca14a25f2921f58dfeacb2f42ddb1c7147
  
Dropping
MD5 08235592784980046a743f7097862862
  
URLhaus
https://urlhaus.abuse.ch/url/3909452/

Comments