MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28ef45fd7b431e40be5e7edc9b78be6bfe4ca1a9b248a272994de7dd08e200c6. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 28ef45fd7b431e40be5e7edc9b78be6bfe4ca1a9b248a272994de7dd08e200c6
SHA3-384 hash: d317a288b51a99b437643b94d3e8fae3d8cfb148df60b0af4762e1e5570b55f9ddae49c12e3dcd6ff9136b5b24262a7e
SHA1 hash: cefbec6411ab4abad0e2a648502f1623d9c0937e
MD5 hash: b5e1f18adb201b7d0ab906e597aa8efb
humanhash: bluebird-lactose-mockingbird-seven
File name:1
Download: download sample
Signature Mirai
Create hunting rule
File size:98'448 bytes
First seen:2025-01-06 06:06:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:iOq0YANo0ySp+p/JxB3Q8uXZbL2gvCJg9HMrwxWLQRCJ2zonZCRGVG/sT8eDoTCd:xqgNJyjBAGfwNQ
TLSH T150A3D75D2E624FECF399873587B39D319258339223E6D680E1ACD9056E6034FA80FB75
telfhash t1a021d34a8a7822e497744ddd56edff36e06170ca59221f3b8d31ec5f9a2dd829d00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
112
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-9441505-0
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=677b73c1c029bd73f283cccblinux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Opens a port
Sends data to a server
Kills processes
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug gafgyt mirai
Link:
https://www.filescan.io/uploads/677b7312d3e0ca0ffef62e00/reports/f23b1605-a2ea-465f-a384-632ea077f550/overview
Result
Verdict:
UNKNOWN
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/6f8ebda0-5e47-41de-8178-e2dc27238ab6
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1584663
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Suricata IDS alerts for network traffic
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1584663 Sample: 1.elf Startdate: 06/01/2025 Architecture: LINUX Score: 76 28 41.169.97.142, 33643, 37215 Neotel-ASZA South Africa 2->28 30 197.186.218.19 airtel-tz-asTZ Tanzania United Republic of 2->30 32 98 other IPs or domains 2->32 34 Suricata IDS alerts for network traffic 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 2 other signatures 2->40 9 1.elf 2->9         started        12 xfce4-panel wrapper-2.0 2->12         started        14 xfce4-panel wrapper-2.0 2->14         started        16 4 other processes 2->16 signatures3 process4 signatures5 42 Sample tries to kill multiple processes (SIGKILL) 9->42 18 1.elf 9->18         started        process6 process7 20 1.elf 18->20         started        process8 22 1.elf 20->22         started        24 1.elf 20->24         started        26 1.elf 20->26         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/28ef45fd7b431e40be5e7edc9b78be6bfe4ca1a9b248a272994de7dd08e200c6
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/28ef45fd7b431e40be5e7edc9b78be6bfe4ca1a9b248a272994de7dd08e200c6/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-06 06:07:04 UTC
File Type:
ELF32 Big (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fdxul7l3impebps6p3ojw6f6np7ezinjwjeke4uzjxt52chcadda._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery
Link:
https://tria.ge/reports/250106-gva6ms1jcr/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Contacts a large (29433) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9441505-0
YARA:
n/a
Link:
https://app.threat.zone/submission/3e585180-e920-4dec-9691-2f45d10dd613
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/28ef45fd7b431e40be5e7edc9b78be6bfe4ca1a9b248a272994de7dd08e200c6

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:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 28ef45fd7b431e40be5e7edc9b78be6bfe4ca1a9b248a272994de7dd08e200c6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3350958/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3387316/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments