MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ef20a4d534b1a17ac41f1515d2bd478f51170feb788df63ab76e341d962b78e. 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 8 File information Comments
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SHA256 hash: 4ef20a4d534b1a17ac41f1515d2bd478f51170feb788df63ab76e341d962b78e
SHA3-384 hash: acbe1cb881639c6e0341eaa351865139b1ede5b8d5978c967660d7cd46bde55265c7f75bbe94de3f3769d84878b55290
SHA1 hash: 976ab8f98af6eb3ddcd01db350f8285312689d17
MD5 hash: 8749912e84f6b453c62865b2096ca4ad
humanhash: video-nebraska-utah-yellow
File name:skid.arm7
Download: download sample
Signature Mirai
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File size:154'968 bytes
First seen:2024-03-12 22:30:31 UTC
Last seen:2024-03-13 03:15:27 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:IVtbnlTIHLouauTWSn8KlO2q+XM95BwbZnIwXi0yM/9bxIC:IVtbl88uauTWSn8mO2sjBwRIwXiBM/9F
TLSH T14BE33A56FB804F13C0D61776BAAF4249332397E493EB730699287FB43F8669A0E53905
telfhash t14a2120615235a115ad71dd54eced97b2152893132344af32ef26c0cc680a09ae63ac4f
Reporter elfdigest
Tags:mirai

Intelligence

File Origin
# of uploads :
9
# of downloads :
125
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28880.LC.UNOFFICIAL
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Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
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SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
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Sanesecurity.Malware.28886.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
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Unix.Dropper.Mirai-7135868-0
Create hunting rule

Unix.Dropper.Mirai-7135891-0
Create hunting rule

Unix.Dropper.Mirai-7135892-0
Create hunting rule

Unix.Dropper.Mirai-7135925-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136034-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Dropper.Mirai-7139229-0
Create hunting rule

Unix.Dropper.Mirai-7540663-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
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Unix.Trojan.Mirai-9441505-0
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Unix.Trojan.Mirai-9760303-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
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Unix.Trojan.Mirai-10011027-0
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Unix.Trojan.Mirai-10011918-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Runs as daemon
Creates directories
DNS request
Opens a port
Creating a file
Sends data to a server
Sets a written file as executable
Connection attempt
Launching a process
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
botnet lolbin masquerade mirai mirai remote
Link:
https://www.filescan.io/uploads/65f0d7a9757c624818abbb01/reports/aea5990d-3807-4b09-b400-0ee1b6cb935b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
103.153.69.114
Number of open files:
38
Number of processes launched:
7
Processes remaning?
true
Remote TCP ports scanned:
2323,23
Full report:
https://elfdigest.com/brief/4ef20a4d534b1a17ac41f1515d2bd478f51170feb788df63ab76e341d962b78e
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Malware family:
Mirai
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/aa51062b-d12f-4b4f-b5cf-a4ed3a727db2
Result
Threat name:
Mirai, Moobot
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Detection:
malicious
Classification:
troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1407886
Signature
Antivirus / Scanner detection for submitted sample
Contains symbols with names commonly found in malware
Detected Mirai
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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: 1407886 Sample: skid.arm7.elf Startdate: 12/03/2024 Architecture: LINUX Score: 100 24 bachlong-sro.com 2->24 26 93.174.227.220, 23 WESTCALL-ASRU Russian Federation 2->26 28 99 other IPs or domains 2->28 30 Snort IDS alert for network traffic 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus / Scanner detection for submitted sample 2->34 36 6 other signatures 2->36 8 skid.arm7.elf 2->8         started        signatures3 process4 process5 10 skid.arm7.elf sh 8->10         started        12 skid.arm7.elf 8->12         started        process6 14 sh rm 10->14         started        16 sh mkdir 10->16         started        18 sh mv 10->18         started        20 sh chmod 10->20         started        22 skid.arm7.elf 12->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4ef20a4d534b1a17ac41f1515d2bd478f51170feb788df63ab76e341d962b78e
Detection:
mirai
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Link:
https://mwdb.cert.pl/sample/4ef20a4d534b1a17ac41f1515d2bd478f51170feb788df63ab76e341d962b78e/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2024-03-12 22:31:06 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j3zautktjmnbplcb6fiv2k6upd2rc4h6w6en6y5lo3rudwlcw6ha._file
Result
Malware family:
mirai
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Score:
  10/10
Tags:
family:mirai botnet:mirai discovery
Link:
https://tria.ge/reports/240312-2fcq5see64/
Behaviour
Contacts a large (23283) amount of remote hosts
Creates a large amount of network flows
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/4ef20a4d534b1a17ac41f1515d2bd478f51170feb788df63ab76e341d962b78e

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:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0bce98a2
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
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
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Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
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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 4ef20a4d534b1a17ac41f1515d2bd478f51170feb788df63ab76e341d962b78e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2781857/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2781869/

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