MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40357bbc1beef844aeefefa3185816ef3e151b72656d50adc651190f8a8ff676. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40357bbc1beef844aeefefa3185816ef3e151b72656d50adc651190f8a8ff676
SHA3-384 hash: ce045819a64928366a347c22e7ace7cee1e7f3df1688641b0328e37cbe5611d108a0e6c14fe5c68d803aaef5c8c09b1e
SHA1 hash: 19508193074bd46b95c6fba4f93b01280566c19a
MD5 hash: f0ce054324312f1008589ed012ba75b1
humanhash: xray-purple-quiet-alpha
File name:nabx86
Download: download sample
Signature Mirai
Create hunting rule
File size:34'524 bytes
First seen:2025-02-10 22:06:34 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:Tjha+4zu8iBkF3zA1NwZMj+nWZZAxPUmLii:TjhaBaQMHg0+nWZZiMmLii
TLSH T138F2298E9883E4F5EC110571B87B6F738A36D43A20E5EB86D75DD532DC46A01E2173AC
telfhash t1392131a27fb258f8f1d1bc4c4b2e3a136f32aa661a6254fd80f52ec233f1065e031845
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
126
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-9970440-0
Create hunting rule

Unix.Trojan.Mirai-1
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67aa78cc49f32dfb0d82e37flinux22vpnfull_triage
Tags:
shellcode phishing backdoor overt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Opens a port
Receives data from a server
Sends data to a server
Connection attempt
DNS request
Substitutes an application name
Performs a bruteforce attack in the network
Deleting of the original file
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
15
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/40357bbc1beef844aeefefa3185816ef3e151b72656d50adc651190f8a8ff676
Behaviour
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c6ffd176-b325-457b-9dcd-7412376628c4
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1611502
Signature
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sends malformed DNS queries
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1611502 Sample: nabx86.elf Startdate: 10/02/2025 Architecture: LINUX Score: 68 19 serisbot.geek. [malformed] 2->19 21 5.19.37.228, 23, 33321, 58638 ZTELECOM-ASRU Russian Federation 2->21 23 100 other IPs or domains 2->23 25 Malicious sample detected (through community Yara rule) 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 Machine Learning detection for sample 2->29 8 nabx86.elf 2->8         started        signatures3 31 Sends malformed DNS queries 19->31 process4 signatures5 33 Sample deletes itself 8->33 11 nabx86.elf 8->11         started        process6 process7 13 nabx86.elf 11->13         started        15 nabx86.elf 11->15         started        17 nabx86.elf 11->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/40357bbc1beef844aeefefa3185816ef3e151b72656d50adc651190f8a8ff676
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/40357bbc1beef844aeefefa3185816ef3e151b72656d50adc651190f8a8ff676/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-02-10 22:07:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ia2xxpa3534ejlxp56rrqwaw547bkg3smvwvblogkemq7cup6z3a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:botnet defense_evasion discovery linux
Link:
https://tria.ge/reports/250210-11q9lazran/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Creates a large amount of network flows
Enumerates active TCP sockets
Enumerates running processes
Deletes itself
Modifies Watchdog functionality
Renames itself
Unexpected DNS network traffic destination
Contacts a large (14797) amount of remote hosts
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-9970440-0
YARA:
Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/761586a2-4842-4fe8-8bed-61ba23c3bffc
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/40357bbc1beef844aeefefa3185816ef3e151b72656d50adc651190f8a8ff676

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_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
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

sh 87e4daaaac8cb8818cc7c0e43e544e66c117383d2f6990ecc4ef2cf596bc630b

Mirai

elf 40357bbc1beef844aeefefa3185816ef3e151b72656d50adc651190f8a8ff676

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3422912/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3424071/
  
URLhaus
https://urlhaus.abuse.ch/url/3422917/
  
URLhaus
https://urlhaus.abuse.ch/url/3436400/
  
Dropped by
SHA256 87e4daaaac8cb8818cc7c0e43e544e66c117383d2f6990ecc4ef2cf596bc630b
  
Dropped by
MD5 64b153fe985f235179761a8cda004223
  
URLhaus
https://urlhaus.abuse.ch/url/3436391/
  
URLhaus
https://urlhaus.abuse.ch/url/3436394/
  
URLhaus
https://urlhaus.abuse.ch/url/3436409/
  
URLhaus
https://urlhaus.abuse.ch/url/3436412/

Comments