MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 640b1b5ba4c58f149d995010a81d6970f6239cf1d9e8fb0a27901b14e89e2807. 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: 9


Intelligence 9 IOCs YARA 7 File information Comments
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SHA256 hash: 640b1b5ba4c58f149d995010a81d6970f6239cf1d9e8fb0a27901b14e89e2807
SHA3-384 hash: 42bb497208c7d1386d535d016be71242ce42127b1fa62b8bdd7f400866b1d980b3b99d6972e2a1ee79ad0afcc18f7639
SHA1 hash: d5d41d3eb886a87c1e050009e24e042b1fa95de9
MD5 hash: 05fd8a40ab55a666470c70c2469bceef
humanhash: stream-uranus-leopard-triple
File name:armv5l
Download: download sample
Signature Mirai
Create hunting rule
File size:194'858 bytes
First seen:2025-12-06 04:51:24 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:zqOn981e4FhRT3LPo0lXSUMyBeWLl7mxGX3icZ7Tv4o+MQCYl:eOae4FL3LPoAiUMyzmxGX3icZ7Tv4o+d
TLSH T1A7140905F9144F67C2C22BBBF78E429D37366B5897D73302AA386EB42F8679C5D29110
telfhash t1dd715318983c05d9ef635d1968ad6ba35553e52a22e5bf29ff16cdc8040e47cf224d0f
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 :
42
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/27bbeed6-c1c0-4834-b1c4-6fb8882c65ac/
Detection(s):
Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135925-0
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Unix.Dropper.Mirai-7139229-0
Create hunting rule

Unix.Trojan.Tsunami-9396652-0
Create hunting rule

Unix.Malware.Mirai-9950761-0
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Unix.Trojan.Mirai-10033529-0
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Unix.Trojan.Mirai-10034904-0
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Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-06T02:26:00Z UTC
Last seen:
2025-12-06T23:21:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/640b1b5ba4c58f149d995010a81d6970f6239cf1d9e8fb0a27901b14e89e2807/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ae36a1ec-9efe-4fd9-a517-a9583e9d2b67
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1827817
Signature
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1827817 Sample: armv5l.elf Startdate: 06/12/2025 Architecture: LINUX Score: 56 17 185.113.223.41, 38486, 55579 RADORETR Turkey 2->17 19 daisy.ubuntu.com 2->19 21 Multi AV Scanner detection for submitted file 2->21 23 Yara detected Mirai 2->23 7 armv5l.elf 2->7         started        9 python3.8 dpkg 2->9         started        signatures3 process4 process5 11 armv5l.elf 7->11         started        13 armv5l.elf 7->13         started        15 armv5l.elf 7->15         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/640b1b5ba4c58f149d995010a81d6970f6239cf1d9e8fb0a27901b14e89e2807
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/640b1b5ba4c58f149d995010a81d6970f6239cf1d9e8fb0a27901b14e89e2807/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-06 04:52:20 UTC
File Type:
ELF32 Little (Exe)
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqfrww5eywhrjhmzkaikqhljod3chhhr3hupwcrhsanrj2e6fadq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/251206-fhhvaaylar/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135925-0
YARA:
n/a
Link:
https://app.threat.zone/submission/728706bb-1241-42ea-8f01-9fcf72eb95d5
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/640b1b5ba4c58f149d995010a81d6970f6239cf1d9e8fb0a27901b14e89e2807

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:Linux_Generic_Threat_d94e1020
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:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 640b1b5ba4c58f149d995010a81d6970f6239cf1d9e8fb0a27901b14e89e2807

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3726852/
  
Delivery method
Distributed via web download

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