MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5674a4fed2ba19301670d124dfd8c48f4b0ef302190b8466eae5ffcb23b6c55. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a5674a4fed2ba19301670d124dfd8c48f4b0ef302190b8466eae5ffcb23b6c55
SHA3-384 hash: 41ddf51e8b472701a16c1a0052113bc5ecb2380a1320ba257880041e31df62756a0545db7714bc072aaea010e41a974a
SHA1 hash: fd0b011d4ace50d5c362ba45b06bb128a451a3d6
MD5 hash: de45bcff179836d01c010cb4041e0f87
humanhash: diet-august-steak-stairway
File name:b1
Download: download sample
Signature Mirai
Create hunting rule
File size:59'872 bytes
First seen:2025-07-27 19:36:17 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:cTGvp2llrwBFp5KbQ4M8mzNnUN0DUJqzWa0b4:cTO2ltwBFp5kQ4L+NUN0ZiX
TLSH T18543E7417602D9B2E00310F26495CF510635FA3E34A1D89FF3817DBBE63AA81D662B6F
telfhash t15e11d3fb2aef08c8ebc64454439a6f210a5de63f1590b7708392dc1813abe815179c3c
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 :
21
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Opens a port
DNS request
Runs as daemon
Sends data to a server
Connection attempt
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
botnet gcc mirai
Link:
https://www.filescan.io/uploads/68867fcb13488cfd44da93c7/reports/5125bba8-1254-4b57-9059-2aba4afa8a8b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a5674a4fed2ba19301670d124dfd8c48f4b0ef302190b8466eae5ffcb23b6c55
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/a92f7c68-1179-4ed6-ae07-56b80b59dcc4
Behavior Graph:
Download SVG
%3 guuid=4f4f386d-1900-0000-0613-5fafab080000 pid=2219 /usr/bin/sudo guuid=916f526f-1900-0000-0613-5fafaf080000 pid=2223 /tmp/sample.bin net guuid=4f4f386d-1900-0000-0613-5fafab080000 pid=2219->guuid=916f526f-1900-0000-0613-5fafaf080000 pid=2223 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=916f526f-1900-0000-0613-5fafaf080000 pid=2223->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=8642986f-1900-0000-0613-5fafb1080000 pid=2225 /tmp/sample.bin net send-data zombie guuid=916f526f-1900-0000-0613-5fafaf080000 pid=2223->guuid=8642986f-1900-0000-0613-5fafb1080000 pid=2225 clone guuid=8642986f-1900-0000-0613-5fafb1080000 pid=2225->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 0cbdda1b-6fa8-5c3f-9669-401d37d35193 j48asd.dns.army:8856 guuid=8642986f-1900-0000-0613-5fafb1080000 pid=2225->0cbdda1b-6fa8-5c3f-9669-401d37d35193 send: 10B guuid=2e2fac6f-1900-0000-0613-5fafb2080000 pid=2226 /tmp/sample.bin dns net send-data guuid=8642986f-1900-0000-0613-5fafb1080000 pid=2225->guuid=2e2fac6f-1900-0000-0613-5fafb2080000 pid=2226 clone guuid=2e2fac6f-1900-0000-0613-5fafb2080000 pid=2226->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 33B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c96530e8-2854-4a4a-a70b-0b497d953470
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1745192
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1745192 Sample: b1.elf Startdate: 27/07/2025 Architecture: LINUX Score: 72 18 109.202.202.202, 80 INIT7CH Switzerland 2->18 20 j48asd.dns.army 38.150.1.242, 50374, 8856 COGENT-174US United States 2->20 22 3 other IPs or domains 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Antivirus / Scanner detection for submitted sample 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 Yara detected Mirai 2->30 8 b1.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 b1.elf 8->14         started        process6 16 b1.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a5674a4fed2ba19301670d124dfd8c48f4b0ef302190b8466eae5ffcb23b6c55
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a5674a4fed2ba19301670d124dfd8c48f4b0ef302190b8466eae5ffcb23b6c55/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-16 09:46:25 UTC
File Type:
ELF32 Little (Exe)
AV detection:
25 of 35 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uvtuut7nfoqzgalhbuje37mmjd2lb3zqegilqrtovzp7zmr3nrkq._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
linux
Link:
https://tria.ge/reports/250727-ybfepaek9x/
Behaviour
Changes its process name
Verdict:
Malicious
Tags:
botnet mirai Unix.Trojan.Mirai-7100807-0
YARA:
Mirai_Botnet_Malware
Link:
https://app.threat.zone/submission/31893464-acab-495a-8b09-b5c54343c2e0
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/a5674a4fed2ba19301670d124dfd8c48f4b0ef302190b8466eae5ffcb23b6c55

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_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
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
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
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 a5674a4fed2ba19301670d124dfd8c48f4b0ef302190b8466eae5ffcb23b6c55

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3591142/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3591154/

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