MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7e23ac939da89993faceccb5e694e8e5ce146fb3de7d0ad3ef8edf12fa23b9d. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7e23ac939da89993faceccb5e694e8e5ce146fb3de7d0ad3ef8edf12fa23b9d
SHA3-384 hash: a03f346bc1011ee5b92b396fccab6df42f6897dda7625a316a1ead35b171ef1b82ca33c16964f2b42bea1d74ba23c4d7
SHA1 hash: 9cc1c96e8383878ef75892a8bee9ed2dded5b126
MD5 hash: bc48feb33a76cb90f60f1d1c4889aa0b
humanhash: golf-fifteen-oregon-washington
File name:k4
Download: download sample
Signature Mirai
Create hunting rule
File size:64'568 bytes
First seen:2025-04-24 23:38:19 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:p6nEoQHHXnU5/ySCkYY08N5qQiMMsiiLd9UBmd:giXq/gk3Ld9UBmd
TLSH T1B5530A56B8819F19D5C406BAFD0E128E331327BCF3DFB253DD106B20779B56B0A2A946
telfhash t17dc08c006ace2abee80080ec82ae8539863203244e160a89d309202713af9c32820d33
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 :
133
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-9441505-0
Create hunting rule

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=680ace11a37ff28e129969e8linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Kills processes
Creating a file
Collects information on the network activity
Substitutes an application name
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/680acba7218c4a98ade0e88a/reports/8a2a8649-4a45-4b6d-bb29-7ed874134025/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
3
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b7e23ac939da89993faceccb5e694e8e5ce146fb3de7d0ad3ef8edf12fa23b9d
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4f0082ef-0315-4e01-9e06-ee8512429ff0
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1673700
Signature
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1673700 Sample: k4.elf Startdate: 25/04/2025 Architecture: LINUX Score: 52 29 103.136.43.20, 47524 IPSERVER-RU-NETFiordRU India 2->29 31 109.202.202.202, 80 INIT7CH Switzerland 2->31 33 3 other IPs or domains 2->33 35 Multi AV Scanner detection for submitted file 2->35 9 k4.elf 2->9         started        12 xfce4-panel wrapper-2.0 2->12         started        14 dash rm 2->14         started        16 7 other processes 2->16 signatures3 process4 signatures5 39 Sample tries to kill multiple processes (SIGKILL) 9->39 18 k4.elf 9->18         started        20 wrapper-2.0 xfpm-power-backlight-helper 12->20         started        process6 process7 22 k4.elf 18->22         started        process8 24 k4.elf 22->24         started        27 k4.elf 22->27         started        signatures9 37 Sample tries to kill multiple processes (SIGKILL) 24->37
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b7e23ac939da89993faceccb5e694e8e5ce146fb3de7d0ad3ef8edf12fa23b9d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7e23ac939da89993faceccb5e694e8e5ce146fb3de7d0ad3ef8edf12fa23b9d/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-04-24 23:39:22 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=w7rdvsjz3kezsp5m5tfv42korzoocrx3hxt5blj67dw7cl5chooq._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
discovery
Link:
https://tria.ge/reports/250424-3neq5swzbv/
Behaviour
Reads runtime system information
Changes its process name
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/b7e23ac939da89993faceccb5e694e8e5ce146fb3de7d0ad3ef8edf12fa23b9d

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_Generic_Threat_d2dca9e7
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

elf b7e23ac939da89993faceccb5e694e8e5ce146fb3de7d0ad3ef8edf12fa23b9d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3519278/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3519276/

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