MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42fa9a87529f017dc06ef6a084cec601cede2c04a7a05f4e9c517e0bdc0713e0. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 42fa9a87529f017dc06ef6a084cec601cede2c04a7a05f4e9c517e0bdc0713e0
SHA3-384 hash: 232cd95261ab18ad50884589267f5783dd0c2fec7d71f80e42baa1ed383c7f05fdf53cd7715d6c9ee84b582fed07e50b
SHA1 hash: bcc38bceda6fba3def38c7bce1f80e4b2aaa1d98
MD5 hash: 4c31d9681482de5e3449f4ad304e3159
humanhash: berlin-lake-cup-mockingbird
File name:ub8ehJSePAfc9FYqZIT6.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:34'896 bytes
First seen:2025-11-28 19:24:14 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:PCkGi0D/4BfI7dZrLSAfFdNi5TiIq4JnbcuyD7UHQRjGT:PBGbyqxLtf4eQJnouy8Hy6T
TLSH T1F5F2E15564BB099EEEFF01B59BFB314F887097AAE1849470C1187573F8A2D1D9C3C069
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
File size (compressed) :34'896 bytes
File size (de-compressed) :70'740 bytes
Format:linux/i386
Unpacked file: 8537960d22e43a1359947a8199f1bb3b09a567f61404178108485d6c22e979e2

Intelligence

File Origin
# of uploads :
1
# of downloads :
28
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Runs as daemon
Connection attempt
Sends data to a server
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6929f71fd0d5e7288b4fb7e3/reports/04f663d8-4900-4f0d-98bc-6786cea779c6/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
45
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/42fa9a87529f017dc06ef6a084cec601cede2c04a7a05f4e9c517e0bdc0713e0
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4e28e9cf-2799-416a-8d7d-300a6ed7f98d
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1822587
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1822587 Sample: ub8ehJSePAfc9FYqZIT6.x86.elf Startdate: 28/11/2025 Architecture: LINUX Score: 68 20 103.77.241.17, 3778, 54004, 54006 X4B-AS-APX4BDDoSProtectedAnnouncementsAU India 2->20 22 Malicious sample detected (through community Yara rule) 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Yara detected Mirai 2->26 28 Sample is packed with UPX 2->28 8 ub8ehJSePAfc9FYqZIT6.x86.elf 2->8         started        signatures3 process4 process5 10 ub8ehJSePAfc9FYqZIT6.x86.elf 8->10         started        12 ub8ehJSePAfc9FYqZIT6.x86.elf 8->12         started        14 ub8ehJSePAfc9FYqZIT6.x86.elf 8->14         started        process6 16 ub8ehJSePAfc9FYqZIT6.x86.elf 10->16         started        18 ub8ehJSePAfc9FYqZIT6.x86.elf 10->18         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/42fa9a87529f017dc06ef6a084cec601cede2c04a7a05f4e9c517e0bdc0713e0
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/42fa9a87529f017dc06ef6a084cec601cede2c04a7a05f4e9c517e0bdc0713e0/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-28 19:25:22 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=il5jvb2st4ax3qdo62qijtwgahhn4laeu6qf6tu4kf7axxahcpqa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251128-x429gszqfn/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/2a8f9dfe-54a0-4a97-b0ae-b2c65e863917
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/42fa9a87529f017dc06ef6a084cec601cede2c04a7a05f4e9c517e0bdc0713e0

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 42fa9a87529f017dc06ef6a084cec601cede2c04a7a05f4e9c517e0bdc0713e0

(this sample)

Mirai

elf 8537960d22e43a1359947a8199f1bb3b09a567f61404178108485d6c22e979e2

  
URLhaus
https://urlhaus.abuse.ch/url/3718971/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 8537960d22e43a1359947a8199f1bb3b09a567f61404178108485d6c22e979e2
  
Dropping
MD5 a90f7aef8adb9075797b230e2ee8dee6

Comments