MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efa18a1f2e4958cb72beb9b02662dc674467af4dbf74eef433922150aaecfbbc. 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: 6


Intelligence 6 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efa18a1f2e4958cb72beb9b02662dc674467af4dbf74eef433922150aaecfbbc
SHA3-384 hash: 36a7cdee5d82050fcf8c7f3587fd4599566a71247e15adb84ee617864c3e9f8bea3ac58b70d4c758598e28dd0ca97221
SHA1 hash: fa5eca18bb2f2b21c2d8622fbd5c4592eea6df5a
MD5 hash: 9ee98d28e34951c3981bc3337102b8be
humanhash: dakota-edward-bacon-speaker
File name:mipsel-20230709-1715
Download: download sample
Signature Mirai
Create hunting rule
File size:122'503 bytes
First seen:2023-07-09 17:15:38 UTC
Last seen:2023-07-12 12:28:32 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:evhg2bAxoWMuFFt3/PAYbBKCSwB5O1i4I94:Ah/bAxPFt3dYCSwB5O1PI94
TLSH T176C30987AF523FB7D8CBEFB796E9D70420DE98022765272570B4CC70A21E98E14D3568
telfhash t1c821218124f285195f979a389cfc57b34a41621732151fb49e39c5cc683b0a1e73dc8a
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:gafgyt mirai

Intelligence

File Origin
# of uploads :
70
# of downloads :
91
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-69.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-78.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29523.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-5607483-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug lolbin obfuscated remote
Link:
https://www.filescan.io/uploads/64aaeb570e49d672f31ecc25/reports/d14b4e5d-50f1-47f6-9c93-35cb1fd820ca/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
5.181.80.102
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/efa18a1f2e4958cb72beb9b02662dc674467af4dbf74eef433922150aaecfbbc
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bfd78f1a-74e4-448b-8375-f3af70a5367b
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1270635
Signature
Antivirus / Scanner detection for submitted sample
Drops files in suspicious directories
Executes the "iptables" command to insert, remove and/or manipulate rules
Found strings indicative of a multi-platform dropper
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Snort IDS alert for network traffic
Uses known network protocols on non-standard ports
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1270635 Sample: mipsel-20230709-1715.elf Startdate: 11/07/2023 Architecture: LINUX Score: 100 89 fucking.blackpeople.lol 2->89 91 146.108.188.249 ZUMTOBEL-ASCorporateDatacenterAustriaAT Austria 2->91 93 99 other IPs or domains 2->93 95 Snort IDS alert for network traffic 2->95 97 Antivirus / Scanner detection for submitted sample 2->97 99 Multi AV Scanner detection for submitted file 2->99 101 3 other signatures 2->101 12 mipsel-20230709-1715.elf 2->12         started        signatures3 process4 signatures5 115 Sample deletes itself 12->115 15 mipsel-20230709-1715.elf 12->15         started        17 mipsel-20230709-1715.elf 12->17         started        process6 process7 19 mipsel-20230709-1715.elf 15->19         started        21 mipsel-20230709-1715.elf 15->21         started        23 mipsel-20230709-1715.elf 15->23         started        25 2 other processes 15->25 process8 27 mipsel-20230709-1715.elf 19->27         started        29 mipsel-20230709-1715.elf 19->29         started        31 mipsel-20230709-1715.elf 19->31         started        33 18 other processes 19->33 process9 35 mipsel-20230709-1715.elf 27->35         started        37 mipsel-20230709-1715.elf sh 29->37         started        41 mipsel-20230709-1715.elf sh 29->41         started        43 mipsel-20230709-1715.elf sh 31->43         started        45 mipsel-20230709-1715.elf sh 31->45         started        47 mipsel-20230709-1715.elf sh 33->47         started        49 mipsel-20230709-1715.elf sh 33->49         started        51 mipsel-20230709-1715.elf sh 33->51         started        53 34 other processes 33->53 file10 55 mipsel-20230709-1715.elf sh 35->55         started        59 mipsel-20230709-1715.elf sh 35->59         started        77 /etc/rc.local, ASCII 37->77 dropped 103 Sample tries to persist itself using System V runlevels 37->103 61 sh chmod 37->61         started        79 /etc/init.d/rcD, ASCII 43->79 dropped 105 Drops files in suspicious directories 43->105 63 sh chmod 43->63         started        81 /etc/profile, ASCII 47->81 dropped 107 Sample tries to persist itself using /etc/profile 47->107 83 /etc/cron.hourly/0, ASCII 49->83 dropped 109 Sample tries to persist itself using cron 49->109 65 sh iptables 51->65         started        85 /etc/passwd, ASCII 53->85 dropped 67 mipsel-20230709-1715.elf sh 53->67         started        69 mipsel-20230709-1715.elf sh 53->69         started        signatures11 process12 file13 87 /etc/init.d/multipath-tools, ASCII 55->87 dropped 111 Drops files in suspicious directories 55->111 71 sh chmod 55->71         started        113 Executes the "iptables" command to insert, remove and/or manipulate rules 65->113 73 sh su 67->73         started        75 sh 67->75         started        signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efa18a1f2e4958cb72beb9b02662dc674467af4dbf74eef433922150aaecfbbc/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2023-07-09 17:16:07 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=56qyuhzojfmmw4v6xgycmyw4m5cgpl2nx52o55btsiqvbkxm7o6a._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230709-vs48laff2t/
Behaviour
Writes file to system bin folder
Deletes itself
Modifies Watchdog functionality
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/efa18a1f2e4958cb72beb9b02662dc674467af4dbf74eef433922150aaecfbbc

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_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:myMirai
Create hunting rule
Description:Mirai
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SUSP_XORed_Mozilla
Create hunting rule
Author:Florian Roth (Nextron Systems)
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 efa18a1f2e4958cb72beb9b02662dc674467af4dbf74eef433922150aaecfbbc

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2676950/
  
Delivery method
Distributed via web download

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