MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 287d786c87af2a15385ee33e49ebaa5d5cc7781c6302eb9d0aaa5ff0a5a50b15. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 287d786c87af2a15385ee33e49ebaa5d5cc7781c6302eb9d0aaa5ff0a5a50b15
SHA3-384 hash: 230454c66c937cdcb7b504a0258df677869b6c9d619d99a359c5bb88e937229edc594a23b4303f899e397b40505d4e60
SHA1 hash: 110ad77fc64b5ea01571c796c374e19162ef9630
MD5 hash: 36b70e5618da6d53216537c7deb2cf9d
humanhash: green-video-uranus-bakerloo
File name:rsyslogd
Download: download sample
Signature Mirai
Create hunting rule
File size:152'202 bytes
First seen:2025-10-14 06:18:18 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:nCP799fo43z/Lu6giTyHZWrHycV/je8IugXDTkMz:CP7zz/LngiiZsScV/je8IugXDTka
TLSH T1F0E34B97AB2C0383C4AB5AF03D6737F08B99ED7102A611C5E50AFFC10776AB46125FA5
telfhash t1eb4185129a7897241fe39928ecad86730522a62353352eb1af3ac1cc54210a0e939d5f
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
132
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30541.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7139229-0
Create hunting rule

Unix.Trojan.Mirai-7688276-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Kills processes
Collects information on the CPU
Connection attempt
Runs as daemon
Creating a file
Sends data to a server
Attempts to kill processes by name
Launching a process
Substitutes an application name
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
gcc
Link:
https://www.filescan.io/uploads/68edeb3e4f3013c55e4cf0b0/reports/9b28d51f-f67a-4d83-9232-582b73a99c0f/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-10-14T03:24:00Z UTC
Last seen:
2025-10-14T04:16:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.fz HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Gafgyt.a
Link:
https://opentip.kaspersky.com/287d786c87af2a15385ee33e49ebaa5d5cc7781c6302eb9d0aaa5ff0a5a50b15/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/22251106-94ed-4c43-8af1-c2fd3e91a80b
Behavior Graph:
Download SVG
%3 guuid=b2454a94-1c00-0000-1c1b-461cb30a0000 pid=2739 /usr/bin/sudo guuid=784e3296-1c00-0000-1c1b-461cb70a0000 pid=2743 /tmp/sample.bin guuid=b2454a94-1c00-0000-1c1b-461cb30a0000 pid=2739->guuid=784e3296-1c00-0000-1c1b-461cb70a0000 pid=2743 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/93c7017b-8d71-4245-99b7-138520073f24
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1794494
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Contains symbols with names commonly found in malware
Multi AV Scanner detection for submitted file
Opens /proc/net/* files useful for finding connected devices and routers
Terminates several processes with shell command 'killall'
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1794494 Sample: rsyslogd.elf Startdate: 14/10/2025 Architecture: LINUX Score: 80 45 176.65.139.133, 37936, 37938, 65481 PALTEL-ASPALTELAutonomousSystemPS Germany 2->45 47 169.254.169.254, 80 USDOSUS Reserved 2->47 49 daisy.ubuntu.com 2->49 51 Antivirus / Scanner detection for submitted sample 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 Yara detected Gafgyt 2->55 57 2 other signatures 2->57 9 rsyslogd.elf 2->9         started        12 python3.8 dpkg 2->12         started        signatures3 process4 signatures5 59 Opens /proc/net/* files useful for finding connected devices and routers 9->59 14 rsyslogd.elf 9->14         started        16 rsyslogd.elf 9->16         started        18 rsyslogd.elf 9->18         started        process6 process7 20 rsyslogd.elf sh 14->20         started        22 rsyslogd.elf sh 14->22         started        24 rsyslogd.elf sh 14->24         started        28 5 other processes 14->28 26 rsyslogd.elf 16->26         started        process8 30 sh killall 20->30         started        33 sh killall 22->33         started        35 sh killall 24->35         started        37 sh killall 28->37         started        39 sh killall 28->39         started        41 sh killall 28->41         started        43 2 other processes 28->43 signatures9 61 Terminates several processes with shell command 'killall' 30->61
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/287d786c87af2a15385ee33e49ebaa5d5cc7781c6302eb9d0aaa5ff0a5a50b15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/287d786c87af2a15385ee33e49ebaa5d5cc7781c6302eb9d0aaa5ff0a5a50b15/
Verdict:
Malicious
Threat:
Family.GAFGYT
Link:
https://tip.neiki.dev/file/287d786c87af2a15385ee33e49ebaa5d5cc7781c6302eb9d0aaa5ff0a5a50b15
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-10-14 06:18:55 UTC
File Type:
ELF32 Big (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fb6xq3ehv4vbkoc64m7et25klvomo6a4mmboxhikvjp7bjnfbmkq._file
Result
Malware family:
gafgyt
Create hunting rule
Score:
  10/10
Tags:
family:gafgyt linux
Link:
https://tria.ge/reports/251014-g2v5dsxsax/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7139229-0
YARA:
n/a
Link:
https://app.threat.zone/submission/da96cead-6cdc-4856-b1b4-b4f25c84235f
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/287d786c87af2a15385ee33e49ebaa5d5cc7781c6302eb9d0aaa5ff0a5a50b15

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Gafgyt_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Mal_LNX_Gafgyt_Botnet_ELF
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect Gafgyt botnet, and there variants.
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 287d786c87af2a15385ee33e49ebaa5d5cc7781c6302eb9d0aaa5ff0a5a50b15

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3576536/
  
Delivery method
Distributed via web download

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