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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9d761481ed3ffd41b437deeb8ce3087fa72dc34070437ccfe1f5893b6922950c. 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: 8


Intelligence 8 IOCs YARA 11 File information Comments

SHA256 hash: 9d761481ed3ffd41b437deeb8ce3087fa72dc34070437ccfe1f5893b6922950c
SHA3-384 hash: 2af3e96795ad1b5e03076fb43a71245156dffc1c970fb3dacbecdae910cdd24b6ceb9118db4ff01043ced2e02a7ab434
SHA1 hash: 1c73373cf718f65aab9c6256fc3d115e7a612a38
MD5 hash: cce9fc60a74df291c5d032179149afe3
humanhash: bacon-pennsylvania-michigan-lactose
File name:flutter.mips
Download: download sample
Signature Mirai
File size:266'584 bytes
First seen:2026-09-21 07:24:28 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:oGcyGAJiSPB1srwTO1IIJTvnWhoGoPvm5CY4RAVDBT0HPL/BpD:oGF3Jx1srwTOOIJTe+25uQB4HTjD
TLSH T153444B4B77908F91E275C97146F34AA7ABE9129327E38145E27DDE103E5038C682FFA4
telfhash t1a54141759f3598229ed2c5509ceea322e21ec5291a51ee27cf24854c006d09ef21be9f
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 9ee22e19b244eaef0dd6430765778679f1fa4ee28b24043909c8862e85be5cc2
File size (compressed) :127'792 bytes
File size (de-compressed) :266'584 bytes
Format:linux/mips
Packed file: 9ee22e19b244eaef0dd6430765778679f1fa4ee28b24043909c8862e85be5cc2

Intelligence


File Origin
# of uploads :
1
# of downloads :
76
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Kills processes
Opens a port
Receives data from a server
Sends data to a server
Connection attempt
Manages services
Runs as daemon
DNS request
Changes access rights for a written file
Creating a file
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
Performs a bruteforce attack in the network
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 expand gcc lolbin masquerade
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-09-21T05:38:00Z UTC
Last seen:
2026-09-21T06:03:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=28e8e24a-1c00-0000-f574-dc2da5080000 pid=2213 /usr/bin/sudo guuid=e6be074f-1c00-0000-f574-dc2da8080000 pid=2216 /tmp/sample.bin guuid=28e8e24a-1c00-0000-f574-dc2da5080000 pid=2213->guuid=e6be074f-1c00-0000-f574-dc2da8080000 pid=2216 execve
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-09-21 07:17:58 UTC
File Type:
ELF32 Big (SO)
AV detection:
10 of 36 (27.78%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Creates/modifies Cron job
Enumerates active TCP sockets
Enumerates running processes
Modifies rc script
Modifies systemd
Write file to user bin folder
Modifies Watchdog functionality
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:deepfield_potassium_mirai_variant
Author:Nokia Deepfield ERT
Description:Detects Potassium Mirai variant (ChaCha20 table, HTTP C2 with token/guid, .woof dropper). Also known as Woof (internal) and Dichter (related variant with Dutch C2 domains, same key material).
Reference:Internal analysis of sample 6ef4ce02; external: @deobfuscately
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:elf_arm_mips_ko_so
Rule name:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:MIRAI_OHSHIT_payload
Author:AfterPacket
Description:MIRAI_OHSHIT ELF payload -- compiled-in C2 set, all architectures
Reference:https://github.com/Afterpacket/drosera-threat-intel
Rule name:NSVPS_Hydra_SSH_Bruteforce
Author:sanad (NSVPS-SOC)
Description:Hydra SSH brute-force campaign credentials pattern from NSVPS honeypot
Rule name:RANSOMWARE
Author:ToroGuitar
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:test_rule_vldslv
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 9d761481ed3ffd41b437deeb8ce3087fa72dc34070437ccfe1f5893b6922950c

(this sample)

  
Delivery method
Distributed via web download

Comments