MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a40b0c74e2bf4821345a948421e3f2bb0ab7ff0d954a4e824c5a634c261aa1f. 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: 6


Intelligence 6 IOCs YARA 5 File information Comments

SHA256 hash: 7a40b0c74e2bf4821345a948421e3f2bb0ab7ff0d954a4e824c5a634c261aa1f
SHA3-384 hash: 90496b323cc018d5b7db40ac0905560a2ccafb37b45821cc7a80ac5c2fff9639491b95d2b2269147ef9815e5226c55e1
SHA1 hash: 2dde03cd96e390ca94088f8b4b743886614c35cd
MD5 hash: 653f8f22e0c64b68a2d618943b66ca08
humanhash: hot-zulu-golf-ink
File name:disconnectraw.mipsel
Download: download sample
Signature Mirai
File size:220'412 bytes
First seen:2026-08-06 06:03:56 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:s44ZfFemPSGncUtSxfreVA9xQbBpKBDgNR3g2mujdeOXdvSaHnvvIVm+4+Mpn3:pmbBsDgNR3g2mQd1pHIMTpn3
TLSH T1CD24298ADFA51FDFC46FCE30061E031715EE599B93F16336867CDC58B68A2094AE3858
telfhash t146417408c93acb2e9ae303e8cbec1e55da85d16a8a610f13cf31c35c45b5049911befe
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 a7e7171bf00c928ad8db6e2485731cb3b5c9dfe6a8f1be318d3e495d9b7bdf07
File size (compressed) :93'632 bytes
File size (de-compressed) :220'412 bytes
Format:linux/mipsel
Packed file: a7e7171bf00c928ad8db6e2485731cb3b5c9dfe6a8f1be318d3e495d9b7bdf07

Intelligence


File Origin
# of uploads :
1
# of downloads :
82
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Creating a file
Changes access rights for a file
Runs as daemon
Receives data from a server
Manages services
Changes the time when the file was created, accessed, or modified
Kills processes
Opens a port
Connection attempt
Launching a process
Changes access rights for a written file
DNS request
Sets a written file as executable
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
expand lolbin
Status:
terminated
Behavior Graph:
%3 guuid=d0cd72ca-1f00-0000-87e7-d95534090000 pid=2356 /usr/bin/sudo guuid=d2fac1cd-1f00-0000-87e7-d9553d090000 pid=2365 /tmp/sample.bin guuid=d0cd72ca-1f00-0000-87e7-d95534090000 pid=2356->guuid=d2fac1cd-1f00-0000-87e7-d9553d090000 pid=2365 execve
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-08-06 06:06:32 UTC
File Type:
ELF32 Little (SO)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery execution persistence privilege_escalation
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Creates a large amount of network flows
Creates/modifies Cron job
Looks up external IP address via web service
Modifies rc script
Modifies systemd
Write file to user bin folder
Please note that we are no longer able to provide a coverage score for Virus Total.

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_arm_mips_ko_so
Rule name:ELF_IoT_Persistence_Hunt
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:unixredflags3
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 7a40b0c74e2bf4821345a948421e3f2bb0ab7ff0d954a4e824c5a634c261aa1f

(this sample)

  
Delivery method
Distributed via web download

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