MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f21b259aa9f30ffa82ac0725f7f529eb6a5378d9b153baee08ce25a18c3f4ad7. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f21b259aa9f30ffa82ac0725f7f529eb6a5378d9b153baee08ce25a18c3f4ad7
SHA3-384 hash: e8e31928e717d112a7a6cfc822ad4a033baa28f33a2d8662035423ed7cb940830d79b64959c25ad6eb1b1e8da8a456a6
SHA1 hash: fb438c37bdc43c82f8c82ed791c94468bbf21847
MD5 hash: 19a2ed07000e28f64f4f2ae18531b904
humanhash: wolfram-social-cup-juliet
File name:powerpc
Download: download sample
Signature Mirai
Create hunting rule
File size:100'456 bytes
First seen:2025-12-04 00:11:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:w8QuO2gcPU6wBIn9Wa1PJR0Tzey1kC9AtrRo6UFdf:w8azTWC9AtrRfUFdf
TLSH T1BFA36B02775C0D43D1A75DF02A3F23E983AFD99222F4FA89250FDA4681B1E77154AED8
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 e2bbaa1ecea9fe9b9b78387a10e2ed8b87608cce565cd4c0cc509dcbaae48bf2
File size (compressed) :42'996 bytes
File size (de-compressed) :100'456 bytes
Format:linux/ppc32
Packed file: e2bbaa1ecea9fe9b9b78387a10e2ed8b87608cce565cd4c0cc509dcbaae48bf2

Intelligence

File Origin
# of uploads :
1
# of downloads :
58
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/3f3ac8fc-cf22-4fcd-ab0a-5485b4eb43ab/
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

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

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

Unix.Dropper.Mirai-7135957-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

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

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

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-9940367-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Opens a port
Changes access rights for a written file
Launching a process
Sends data to a server
Removes directories
Changes access rights for a file
Sets a written file as executable
Creating a file
Deleting a recently created file
Connection attempt
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6930d1dfff25e40750d2a423/reports/9beb7145-84c1-4ae2-b347-78ae13eb06da/overview
Result
Gathering data
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/980f2bbc-10a3-4807-94f1-9673ab507bce
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1825968
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Deletes system log files
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1825968 Sample: powerpc.elf Startdate: 04/12/2025 Architecture: LINUX Score: 72 34 151.242.30.13, 12121, 42448, 42450 RASANAIR Iran (ISLAMIC Republic Of) 2->34 36 daisy.ubuntu.com 2->36 38 Antivirus detection for dropped file 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 Multi AV Scanner detection for submitted file 2->42 8 powerpc.elf 2->8         started        11 python3.8 dpkg 2->11         started        signatures3 process4 file5 32 /usr/local/bin/infinitd, ELF 8->32 dropped 13 powerpc.elf 8->13         started        15 powerpc.elf 8->15         started        17 powerpc.elf sh 8->17         started        19 3 other processes 8->19 process6 process7 21 powerpc.elf 13->21         started        24 powerpc.elf 15->24         started        26 powerpc.elf 15->26         started        28 sh 17->28         started        30 sh 19->30         started        signatures8 44 Manipulation of devices in /dev 21->44 46 Deletes system log files 21->46
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f21b259aa9f30ffa82ac0725f7f529eb6a5378d9b153baee08ce25a18c3f4ad7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f21b259aa9f30ffa82ac0725f7f529eb6a5378d9b153baee08ce25a18c3f4ad7/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-04 00:12:19 UTC
File Type:
ELF32 Big (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6inslgvj6mh7vavma4s7p5jj5nvfg6gzwfj3v3qizys2ddb7jllq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/251204-alwyesak7v/
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 e2bbaa1ecea9fe9b9b78387a10e2ed8b87608cce565cd4c0cc509dcbaae48bf2

Mirai

elf f21b259aa9f30ffa82ac0725f7f529eb6a5378d9b153baee08ce25a18c3f4ad7

(this sample)

  
Dropped by
SHA256 e2bbaa1ecea9fe9b9b78387a10e2ed8b87608cce565cd4c0cc509dcbaae48bf2
  
URLhaus
https://urlhaus.abuse.ch/url/3724371/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 426ce65a90ba4029e2f6f2eb4366f6a9

Comments