MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a38fc33ae1ba2e37acb788870badb24d11348e6463589fa479259f46fa6779b. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a38fc33ae1ba2e37acb788870badb24d11348e6463589fa479259f46fa6779b
SHA3-384 hash: f9fc893f4ff788c669a47f635cd6f56d49b647fbbdb758193cc8586e322cd91484b5b337f8fbfc452306b2c507cfccba
SHA1 hash: 3d06269a25cffeeca2e03a6f79efd46c8ea87eb3
MD5 hash: 86976feeadb96a6c9fb966039f3030e0
humanhash: floor-lactose-juliet-high
File name:flutter.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:241'208 bytes
First seen:2026-07-26 15:53:42 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:wc4e/ONXwIMZlMY6GUMMZf0TsyrHdLXDX6/0M8+:wVePIMZhuasiXDKcM7
TLSH T116345C4B77A08F90E275D93006F34AA79AB9129317E39545E2BDDE113E6034C6C2FFA4
telfhash t198412e729b79a5239ec2c4509cfe9322b51ec11a0a55de27df24844c102e09eb22be9f
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 71f4a9d7ab1b0485517bd56905ea87870102a1469f770c4d832a4404c9591220
File size (compressed) :126'256 bytes
File size (de-compressed) :241'208 bytes
Format:linux/mips
Packed file: 71f4a9d7ab1b0485517bd56905ea87870102a1469f770c4d832a4404c9591220

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

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

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-10058997-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Kills processes
Opens a port
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
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 expand gcc lolbin masquerade mirai
Link:
https://www.filescan.io/uploads/6a662dafa57d2c3f08b4c245/reports/0895b5b0-027b-4016-82b7-de98a27096a0/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-07-07T18:44:00Z UTC
Last seen:
2026-07-09T19:42:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4a38fc33ae1ba2e37acb788870badb24d11348e6463589fa479259f46fa6779b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1aedd633-f5d1-4126-8a2e-7babecf2cdd1
Behavior Graph:
Download SVG
%3 guuid=e3f27bcd-1a00-0000-16d0-90d5660a0000 pid=2662 /usr/bin/sudo guuid=9b8cfecf-1a00-0000-16d0-90d56b0a0000 pid=2667 /tmp/sample.bin guuid=e3f27bcd-1a00-0000-16d0-90d5660a0000 pid=2662->guuid=9b8cfecf-1a00-0000-16d0-90d56b0a0000 pid=2667 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c9dfee59-a98c-4b29-ad5b-f0fb4c12f9f4
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4a38fc33ae1ba2e37acb788870badb24d11348e6463589fa479259f46fa6779b
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4a38fc33ae1ba2e37acb788870badb24d11348e6463589fa479259f46fa6779b/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-07-07 23:53:16 UTC
File Type:
ELF32 Big (SO)
AV detection:
18 of 37 (48.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ji4pym5odorog6wlpcehbow3etirgshgiy2yt6shsjm7i35go6nq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/260726-tccmzaxfjf/
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/4a38fc33ae1ba2e37acb788870badb24d11348e6463589fa479259f46fa6779b

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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:elf_arm_mips_ko_so
Create hunting rule
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:test_rule_vldslv
Create hunting rule
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 71f4a9d7ab1b0485517bd56905ea87870102a1469f770c4d832a4404c9591220

Mirai

elf 4a38fc33ae1ba2e37acb788870badb24d11348e6463589fa479259f46fa6779b

(this sample)

  
Dropped by
SHA256 71f4a9d7ab1b0485517bd56905ea87870102a1469f770c4d832a4404c9591220
  
Dropped by
MD5 4086b049441d38d4648924735a3811f8
  
URLhaus
https://urlhaus.abuse.ch/url/3892108/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3892118/

Comments