MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b71aa7f3235de61e33d39284d8550066c1194abb93a0ef87f2f3f3cd895d2dfd. 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: b71aa7f3235de61e33d39284d8550066c1194abb93a0ef87f2f3f3cd895d2dfd
SHA3-384 hash: e8764390b45cb128697fb1d2078ce42a27aeb4f42b19291a650ed3f81b89481f9edf4c8f9be6735edd9541601fdaeca4
SHA1 hash: 9a94ce259848e6796d7ae3f82febf35a14a6600e
MD5 hash: 578585ce56d2f0306e1e27defc306b3f
humanhash: magazine-butter-king-eight
File name:b2
Download: download sample
Signature Mirai
Create hunting rule
File size:111'168 bytes
First seen:2025-07-27 19:38:24 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:CZvxW5Tp9kYNxki4q7QJ/ZQJxIQJxwUmM95161MYNv9v+/4L53WMVszeZpOFcH4:eEIqmW/4LJWMVDZpws4
TLSH T14AB3993D6E22BF6EE7B8823107F62FB0931650D37692D280E27DCA544EB534C499E794
telfhash t16101ff08057817f0a3844d9d6bddff34e89155ef99661f3bcd50c595a261e829c01c2c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
20
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Receives data from a server
Runs as daemon
Opens a port
Sends data to a server
Connection attempt
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
botnet gcc mirai
Link:
https://www.filescan.io/uploads/68868082a16348d835f054e5/reports/cd07933d-38fe-4a09-926f-1e89447ffc75/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b71aa7f3235de61e33d39284d8550066c1194abb93a0ef87f2f3f3cd895d2dfd
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/a0385fe9-af6d-45bb-a964-217d9d4d734c
Behavior Graph:
Download SVG
%3 guuid=54b71f7d-1c00-0000-922e-3477f50b0000 pid=3061 /usr/bin/sudo guuid=32cdd57e-1c00-0000-922e-3477f60b0000 pid=3062 /tmp/sample.bin guuid=54b71f7d-1c00-0000-922e-3477f50b0000 pid=3061->guuid=32cdd57e-1c00-0000-922e-3477f60b0000 pid=3062 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/81e2394c-4d1e-412e-bcd8-1eca5f6a23fc
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1745188
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b71aa7f3235de61e33d39284d8550066c1194abb93a0ef87f2f3f3cd895d2dfd
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b71aa7f3235de61e33d39284d8550066c1194abb93a0ef87f2f3f3cd895d2dfd/
Verdict:
Malicious
Threat:
HEUR:Backdoor.Linux.Mirai
Link:
https://tip.neiki.dev/file/b71aa7f3235de61e33d39284d8550066c1194abb93a0ef87f2f3f3cd895d2dfd
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-20 06:38:24 UTC
File Type:
ELF32 Big (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w4nkp4zdlxtb4m6tskcnqviam3arssv3soqo7b7s6pz43ck5fx6q._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/250727-yc52qsel3s/
Behaviour
Changes its process name
Verdict:
Malicious
Tags:
botnet mirai Unix.Trojan.Mirai-7100807-0
YARA:
Mirai_Botnet_Malware
Link:
https://app.threat.zone/submission/2aa844f7-7d6c-4064-a564-72b1e86e9375
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/b71aa7f3235de61e33d39284d8550066c1194abb93a0ef87f2f3f3cd895d2dfd

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:Linux_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
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 b71aa7f3235de61e33d39284d8550066c1194abb93a0ef87f2f3f3cd895d2dfd

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3591146/
  
Delivery method
Distributed via web download

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