MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bff83f08b151c6f5ae7196174a13f5fbef6593f3af4c79e0a300cfa26466ee51. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
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SHA256 hash: bff83f08b151c6f5ae7196174a13f5fbef6593f3af4c79e0a300cfa26466ee51
SHA3-384 hash: b50a2c9241dfd34521dd38c977a4a2d4458094d8292648a3456e6e68f2d20e9bdc08869e1639f08bb46da710024dee9b
SHA1 hash: 205ed101d49e68ade6b6b4907f6d24d63ebf7c8c
MD5 hash: 95d40e4f9bf6269b61ddc1001726c5b4
humanhash: oklahoma-arkansas-mockingbird-kitten
File name:katrina
Download: download sample
Signature Mirai
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File size:149'299 bytes
First seen:2025-07-20 07:43:27 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:Hv5jae0iz2cM7OhS4yyfg60HEL3/4hl1YuYz8L1pm0gIVv1R8obD77Z:PR10/ECyfL0HEz/i2uXm0gIVv1R8obDB
TLSH T10FE31993F910DFBAF40ED77A44D34725B370BB660E632562720B39A7AD362C42826F45
telfhash t19c316515a97981392fa19c5c5c6c9bb211229b13670b3f32bf3294cd5536091d62ee4f
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
20
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30541.LC.UNOFFICIAL
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Unix.Trojan.Mirai-6981989-0
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Unix.Downloader.Mirai-7340346-0
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Unix.Trojan.Gafgyt-7782058-0
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Unix.Trojan.Mirai-9940650-0
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Unix.Trojan.Mirai-10018298-0
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Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gcc obfuscated
Link:
https://www.filescan.io/uploads/687c9e5c8a7d628a81b833d0/reports/a623336e-8984-4de9-80f4-471bb3e8812c/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/ef5d375a-8b38-465d-891c-3ecbf84275c6
Behavior Graph:
Download SVG
%3 guuid=6d9c3e3c-1700-0000-8042-7f054f0e0000 pid=3663 /usr/bin/sudo guuid=82b6e43d-1700-0000-8042-7f05550e0000 pid=3669 /tmp/sample.bin guuid=6d9c3e3c-1700-0000-8042-7f054f0e0000 pid=3663->guuid=82b6e43d-1700-0000-8042-7f05550e0000 pid=3669 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/fe600058-0b1f-4a95-bdac-a3564e944c7c
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1740385
Signature
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
Sample tries to kill multiple processes (SIGKILL)
Terminates several processes with shell command 'killall'
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1740385 Sample: katrina.elf Startdate: 20/07/2025 Architecture: LINUX Score: 64 68 92.119.196.188 YHSRV-ASN-393559US Germany 2->68 70 160.108.150.53 WOODYNET-2US United States 2->70 72 98 other IPs or domains 2->72 74 Multi AV Scanner detection for submitted file 2->74 76 Connects to many ports of the same IP (likely port scanning) 2->76 78 Contains symbols with names commonly found in malware 2->78 10 katrina.elf 2->10         started        12 xfce4-session xfce4-panel 2->12         started        14 xfce4-session xfce4-panel 2->14         started        16 10 other processes 2->16 signatures3 process4 process5 18 katrina.elf 10->18         started        20 xfce4-panel wrapper-2.0 12->20         started        22 xfce4-panel wrapper-2.0 12->22         started        24 xfce4-panel wrapper-2.0 12->24         started        32 5 other processes 12->32 26 xfce4-panel wrapper-2.0 14->26         started        28 xfce4-panel wrapper-2.0 14->28         started        30 xfce4-panel wrapper-2.0 14->30         started        34 3 other processes 14->34 process6 36 katrina.elf 18->36         started        39 katrina.elf 18->39         started        41 wrapper-2.0 xfpm-power-backlight-helper 20->41         started        43 wrapper-2.0 xfpm-power-backlight-helper 22->43         started        signatures7 80 Sample tries to kill multiple processes (SIGKILL) 36->80 45 katrina.elf sh 36->45         started        47 katrina.elf sh 36->47         started        49 katrina.elf sh 36->49         started        51 27 other processes 36->51 process8 process9 53 sh killall 45->53         started        56 sh killall 47->56         started        58 sh killall 49->58         started        60 sh killall 51->60         started        62 sh killall 51->62         started        64 sh killall 51->64         started        66 24 other processes 51->66 signatures10 82 Terminates several processes with shell command 'killall' 53->82
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/bff83f08b151c6f5ae7196174a13f5fbef6593f3af4c79e0a300cfa26466ee51
Detection:
mirai
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Link:
https://mwdb.cert.pl/sample/bff83f08b151c6f5ae7196174a13f5fbef6593f3af4c79e0a300cfa26466ee51/
Verdict:
Malicious
Threat:
HEUR:Backdoor.Linux.Gafgyt
Link:
https://tip.neiki.dev/file/bff83f08b151c6f5ae7196174a13f5fbef6593f3af4c79e0a300cfa26466ee51
Threat name:
Linux.Backdoor.Gafgyt
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Status:
Malicious
First seen:
2025-07-20 07:44:28 UTC
File Type:
ELF32 Big (Exe)
AV detection:
13 of 23 (56.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x74d6cfrkhdplltrsyluue7v7pxwle7tv5ghtyfdadh2ezdg5ziq._file
Result
Malware family:
gafgyt
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Score:
  10/10
Tags:
family:gafgyt linux
Link:
https://tria.ge/reports/250720-jk1pnagm6y/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-6981989-0
YARA:
n/a
Link:
https://app.threat.zone/submission/098e780e-63fc-4c22-87e8-821a38ea377c
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/bff83f08b151c6f5ae7196174a13f5fbef6593f3af4c79e0a300cfa26466ee51

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
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Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:botnet_plaintext_c2
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Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:setsockopt
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Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
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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 bff83f08b151c6f5ae7196174a13f5fbef6593f3af4c79e0a300cfa26466ee51

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3576539/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3584476/
  
URLhaus
https://urlhaus.abuse.ch/url/3584495/

Comments