MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d81349fc12074feef84c388399c1e4803b3038f57731cc227d2359084d7555cb. 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 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d81349fc12074feef84c388399c1e4803b3038f57731cc227d2359084d7555cb
SHA3-384 hash: 7fe5adce6ef463f843bb6147fb987c9d2ae275cadcd3ef4a611615a69cc8ceb9fe7c6a3fd737e719088f60a5b9cb3d47
SHA1 hash: fcb54860785568d3275a22809e63555dbe5b5ab1
MD5 hash: 0c24365eb9540b36d527bd5a4a6e0c41
humanhash: skylark-diet-jupiter-oven
File name:astro.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:144'580 bytes
First seen:2026-01-28 13:57:35 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:muM5qbxbwPgjnaaZJX79Jot8lCw5I+X7CyEnOXze4M/9D4z/AP:zM5qbxbwPgjnaO68lCw517MOXz5M/9M+
TLSH T14DE33A46F6418B13C5D5177BFA9F024A3322D794A3DB730699285FB43F86A5F0E23A06
telfhash t1b4219bb1572aa6245969cbec89dc73b9122c86121247df33ef2184bca41949df525c4f
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 9bc64e57530bee4ea3b2ef51f6ed149286ac968f49c62887a137d1504d3e9694
File size (compressed) :51'640 bytes
File size (de-compressed) :144'580 bytes
Format:linux/arm
Packed file: 9bc64e57530bee4ea3b2ef51f6ed149286ac968f49c62887a137d1504d3e9694

Intelligence

File Origin
# of uploads :
1
# of downloads :
37
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/ded242c7-db7d-45a3-99fc-76a50468685a/
Detection(s):
Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135890-0
Create hunting rule

Unix.Dropper.Mirai-7135925-0
Create hunting rule

Unix.Dropper.Mirai-7135939-0
Create hunting rule

Unix.Dropper.Mirai-7136025-0
Create hunting rule

Unix.Trojan.Mirai-9760303-0
Create hunting rule

Unix.Trojan.Mirai-9819563-0
Create hunting rule

Unix.Trojan.Mirai-9820623-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Sends data to a server
Connection attempt
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/d81349fc12074feef84c388399c1e4803b3038f57731cc227d2359084d7555cb
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8a50da6e-c45e-4e53-9982-aa95db362eee
Behavior Graph:
Download SVG
%3 guuid=e07957e1-1900-0000-5bdd-3879f90c0000 pid=3321 /usr/bin/sudo guuid=8dde48e5-1900-0000-5bdd-3879fb0c0000 pid=3323 /tmp/sample.bin guuid=e07957e1-1900-0000-5bdd-3879f90c0000 pid=3321->guuid=8dde48e5-1900-0000-5bdd-3879fb0c0000 pid=3323 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ef093bd8-02bb-4c73-8a77-f4440829b39f
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1859053
Signature
Antivirus / Scanner detection for submitted sample
Contains symbols with names commonly found in malware
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1859053 Sample: astro.arm7.elf Startdate: 28/01/2026 Architecture: LINUX Score: 76 48 31.221.210.156 XFERAES Spain 2->48 50 77.225.26.153 VODAFONE_ESES Spain 2->50 52 99 other IPs or domains 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 Contains symbols with names commonly found in malware 2->60 10 astro.arm7.elf 2->10         started        12 dash rm 2->12         started        14 dash head 2->14         started        16 9 other processes 2->16 signatures3 process4 process5 18 astro.arm7.elf 10->18         started        20 astro.arm7.elf 10->20         started        22 astro.arm7.elf 10->22         started        process6 24 astro.arm7.elf 18->24         started        26 astro.arm7.elf 18->26         started        28 astro.arm7.elf 20->28         started        30 astro.arm7.elf 20->30         started        32 astro.arm7.elf 20->32         started        process7 34 astro.arm7.elf 24->34         started        36 astro.arm7.elf 24->36         started        38 astro.arm7.elf 24->38         started        40 astro.arm7.elf 28->40         started        42 astro.arm7.elf 28->42         started        process8 44 astro.arm7.elf 34->44         started        46 astro.arm7.elf 34->46         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d81349fc12074feef84c388399c1e4803b3038f57731cc227d2359084d7555cb
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d81349fc12074feef84c388399c1e4803b3038f57731cc227d2359084d7555cb/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/d81349fc12074feef84c388399c1e4803b3038f57731cc227d2359084d7555cb
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-28 13:59:28 UTC
File Type:
ELF32 Little (Exe)
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3ajut7asa5h656cmhcbztqpeqa5taohvo4y4yit5enmqqtlvkxfq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:sora defense_evasion discovery
Link:
https://tria.ge/reports/260128-q92ftadt5g/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Modifies Watchdog functionality
Contacts a large (171954) amount of remote hosts
Creates a large amount of network flows
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/d81349fc12074feef84c388399c1e4803b3038f57731cc227d2359084d7555cb

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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 9bc64e57530bee4ea3b2ef51f6ed149286ac968f49c62887a137d1504d3e9694

Mirai

elf d81349fc12074feef84c388399c1e4803b3038f57731cc227d2359084d7555cb

(this sample)

  
Dropped by
SHA256 9bc64e57530bee4ea3b2ef51f6ed149286ac968f49c62887a137d1504d3e9694
  
URLhaus
https://urlhaus.abuse.ch/url/3765047/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 8c4bca8971d7225de80c67bfa3f1f135

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