MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99ffc3d19c81f8d469f88ab4623f16c8c2c43371f0c970058e923c5e80a43cb9. 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 4 File information Comments

SHA256 hash: 99ffc3d19c81f8d469f88ab4623f16c8c2c43371f0c970058e923c5e80a43cb9
SHA3-384 hash: f0d64f8afbc9b57bdd15c9f305a94295a868ed4f8436af79bcbe5e52cc4c50d53ac0272cf722f8684d18df7cec283d4a
SHA1 hash: 551737cb7b98fa67a83f2001b81879bb86976472
MD5 hash: fe092e9eede4c21087451b55b0a483ee
humanhash: finch-connecticut-arizona-three
File name:parm5
Download: download sample
Signature Mirai
File size:44'576 bytes
First seen:2026-04-07 09:05:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:/ZlaDk2XL0mqmQZIVNU/zcXfaegojJ3Ru/+DM4Yq71dUx:vabXIm3QAfaM9c+g61d6
TLSH T105132A92B8829A37C1E0127EE96E805D3325A7F8D2CFB717C9156B417A8A41F4D77B02
telfhash t172f05c04be668e0559e79570cdbd07a4e802111391a69b24cf12cbe0883f448e308d1d
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 5823398289f585cfe65d4eb6822227c90c2f0d26db8f8f9f5fd22e9bf3d47ce0
File size (compressed) :20'876 bytes
File size (de-compressed) :44'576 bytes
Format:linux/arm
Packed file: 5823398289f585cfe65d4eb6822227c90c2f0d26db8f8f9f5fd22e9bf3d47ce0

Intelligence


File Origin
# of uploads :
1
# of downloads :
80
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:
Gathering data
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
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-04-07T07:18:00Z UTC
Last seen:
2026-04-07T07:50:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=b52027ed-1f00-0000-91b9-4b53e50a0000 pid=2789 /usr/bin/sudo guuid=c4f706f1-1f00-0000-91b9-4b53eb0a0000 pid=2795 /tmp/sample.bin guuid=b52027ed-1f00-0000-91b9-4b53e50a0000 pid=2789->guuid=c4f706f1-1f00-0000-91b9-4b53eb0a0000 pid=2795 execve
Threat name:
Linux.Backdoor.Bushido
Status:
Malicious
First seen:
2026-04-07 09:08:53 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet:mirai
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_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 99ffc3d19c81f8d469f88ab4623f16c8c2c43371f0c970058e923c5e80a43cb9

(this sample)

  
Delivery method
Distributed via web download

Comments