MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc5d923c7c92db2cef5b7fe4e06bb703ec29ffabc051939fcdeb1dfb6f71ec99. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fc5d923c7c92db2cef5b7fe4e06bb703ec29ffabc051939fcdeb1dfb6f71ec99
SHA3-384 hash: 157a0d3565dd0ebc85034b43366a408b868a014e6ef2044850f7c38e862ccc823aab2cac7ebd05d98f31cc96260b87b8
SHA1 hash: d1bf617a3d276f2e11797c503eb044e672bcad07
MD5 hash: 4f268a75b82e7984aaf49354783a0d63
humanhash: black-bacon-aspen-papa
File name:x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:76'304 bytes
First seen:2024-04-12 15:05:35 UTC
Last seen:2024-04-12 16:35:33 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:/WEOXyxL8P2O8qd+z5lA8vZ9/pYOVXJM1jP2WRuGl8V7wNJAd:/WFXyB8P2tqd+z5lA8vZ9RYxjPLR5yVN
TLSH T1F7732B03B542C4FDD9ABC1345F5EBA3AD82375FC1228F1AA6BD0EA326D66D210D2DD05
telfhash t1be2102e578364550f1fff12aa746e10008700aa114e635f1d6b374f6ea667c20b76c63
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Reporter elfdigest
Tags:mirai

Intelligence

File Origin
# of uploads :
9
# of downloads :
118
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Creates directories
DNS request
Creating a file
Sends data to a server
Sets a written file as executable
Connection attempt
Launching a process
Substitutes an application name
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
103.237.86.195
Number of open files:
44
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
37215
Full report:
https://elfdigest.com/brief/fc5d923c7c92db2cef5b7fe4e06bb703ec29ffabc051939fcdeb1dfb6f71ec99
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8f57f7b6-6f9f-4543-8b98-307fe3dcb161
Result
Threat name:
Mirai, Moobot
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1425130
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to set files in /etc globally writable
Snort IDS alert for network traffic
Uses known network protocols on non-standard ports
Yara detected Mirai
Yara detected Moobot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1425130 Sample: x86_64.elf Startdate: 12/04/2024 Architecture: LINUX Score: 100 27 bn.networkbn.click 2->27 29 41.203.64.61, 37215 globacom-asNG Nigeria 2->29 31 99 other IPs or domains 2->31 33 Snort IDS alert for network traffic 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus / Scanner detection for submitted sample 2->37 39 6 other signatures 2->39 8 x86_64.elf 2->8         started        signatures3 process4 process5 10 x86_64.elf sh 8->10         started        12 x86_64.elf 8->12         started        process6 14 sh chmod 10->14         started        17 sh rm 10->17         started        19 sh mkdir 10->19         started        25 2 other processes 10->25 21 x86_64.elf 12->21         started        23 x86_64.elf 12->23         started        signatures7 41 Sample tries to set files in /etc globally writable 14->41
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/fc5d923c7c92db2cef5b7fe4e06bb703ec29ffabc051939fcdeb1dfb6f71ec99
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fc5d923c7c92db2cef5b7fe4e06bb703ec29ffabc051939fcdeb1dfb6f71ec99/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2024-04-12 14:51:46 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7rozepd4slnsz323p7soa25xapwct75lybizhh6n5mo7w33r5smq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai discovery linux
Link:
https://tria.ge/reports/240412-sgqvqabe34/
Behaviour
Reads runtime system information
Writes file to tmp directory
Enumerates running processes
Changes its process name
Contacts a large (37115) amount of remote hosts
Creates a large amount of network flows
Malware Config
C2 Extraction:
bn.networkbn.click
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/fc5d923c7c92db2cef5b7fe4e06bb703ec29ffabc051939fcdeb1dfb6f71ec99

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_564b8eda
Create hunting rule
Author:Elastic Security
Rule name:Mal_LNX_Mirai_Botnet_ELF
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect Mirai botnet, and there variants.
Rule name:Mirai_Unpack
Create hunting rule
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 fc5d923c7c92db2cef5b7fe4e06bb703ec29ffabc051939fcdeb1dfb6f71ec99

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2809917/
  
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_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments