MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21a7c07cccd6d7ad138d49beba14c67ae46489d14983fd5304ef618a557d6e00. 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: 10


Intelligence 10 IOCs YARA 8 File information Comments
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SHA256 hash: 21a7c07cccd6d7ad138d49beba14c67ae46489d14983fd5304ef618a557d6e00
SHA3-384 hash: 9962604e26b4f9ed6510bab5f5f6596140c0ab3316337ab1e636d31d44aab2a36fa0886e16bc8ad663349dada228af83
SHA1 hash: 5d61453ad617406dfa5a37dfefb3dece4169442c
MD5 hash: d253262b871b021a66c7ac28f0c4ee8f
humanhash: harry-lithium-romeo-fish
File name:mirai.arm
Download: download sample
Signature Mirai
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File size:165'280 bytes
First seen:2025-12-27 18:08:05 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:N73sbC7sSnFMmtEFCAMOuyKeYwAl8G0D4J38ypkM4ac:N73sGChFOy+fexD4l8Yz4ac
TLSH T157F31945FC918B17C6D552BBFB5E428D372667A8D2EE32038C256F24378A95F0D3B242
telfhash t1e431eea7cf590ecc6be98154924ea126eee832c927013486cf1db74fcd874c2b91d823
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 :
48
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/36612c62-aac4-49e4-9a26-fd32e8dffae7/
Detection(s):
SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gafgyt masquerade mirai rust
Link:
https://www.filescan.io/uploads/695020973f8fdbf8e9536f94/reports/df378946-3994-42ab-a8a1-83a68c6a6f5e/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-27T12:26:00Z UTC
Last seen:
2025-12-28T03:03:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/21a7c07cccd6d7ad138d49beba14c67ae46489d14983fd5304ef618a557d6e00/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/e2c5c65d-0aa2-403d-9826-9b454685b954
Behavior Graph:
Download SVG
%3 guuid=5f8caf76-1a00-0000-8333-ce81680b0000 pid=2920 /usr/bin/sudo guuid=c8a54078-1a00-0000-8333-ce816c0b0000 pid=2924 /tmp/sample.bin guuid=5f8caf76-1a00-0000-8333-ce81680b0000 pid=2920->guuid=c8a54078-1a00-0000-8333-ce816c0b0000 pid=2924 execve
Malware family:
Mirai
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4f44ccf6-35d6-4cc4-b0ae-dc46cbf24580
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1840413
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Drops invisible ELF files
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to set files in /etc globally writable
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1840413 Sample: mirai.arm.elf Startdate: 27/12/2025 Architecture: LINUX Score: 100 74 208.177.103.106, 23 XO-AS15US United States 2->74 76 13.13.150.132, 23 XEROX-WBUS United States 2->76 78 99 other IPs or domains 2->78 80 Malicious sample detected (through community Yara rule) 2->80 82 Antivirus detection for dropped file 2->82 84 Antivirus / Scanner detection for submitted sample 2->84 86 2 other signatures 2->86 10 mirai.arm.elf 2->10         started        12 systemd .sh 2->12         started        14 systemd .sh 2->14         started        16 4 other processes 2->16 signatures3 process4 process5 18 mirai.arm.elf 10->18         started        20 .sh 12->20         started        22 .sh 14->22         started        process6 24 mirai.arm.elf 18->24         started        27 .sh 20->27         started        30 .sh 22->30         started        file7 92 Sample tries to set files in /etc globally writable 24->92 94 Drops files in suspicious directories 24->94 96 Sample deletes itself 24->96 32 mirai.arm.elf sh 24->32         started        34 mirai.arm.elf sh 24->34         started        36 mirai.arm.elf sh 24->36         started        44 3 other processes 24->44 72 /etc/init.d/sys-service, POSIX 27->72 dropped 46 5 other processes 27->46 38 .sh sh 30->38         started        40 .sh sh 30->40         started        42 .sh sh 30->42         started        48 2 other processes 30->48 signatures8 process9 process10 50 sh cp 32->50         started        54 sh sys-service 34->54         started        56 sh sys-service 36->56         started        58 sh cp 38->58         started        60 sh sys-service 40->60         started        62 sh sys-service 42->62         started        64 4 other processes 44->64 66 5 other processes 46->66 68 2 other processes 48->68 file11 70 /usr/bin/.sh, ELF 50->70 dropped 88 Drops invisible ELF files 50->88 90 Drops files in suspicious directories 50->90 signatures12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21a7c07cccd6d7ad138d49beba14c67ae46489d14983fd5304ef618a557d6e00
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21a7c07cccd6d7ad138d49beba14c67ae46489d14983fd5304ef618a557d6e00/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-27 18:08:28 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=egt4a7gm23l22e4njg7lufggplsgjcorjgb72uye55qyuvl5nyaa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/251227-wq41gsvqcj/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/efbf409d-e59f-43a5-b8c4-3cdefdddc22e
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/21a7c07cccd6d7ad138d49beba14c67ae46489d14983fd5304ef618a557d6e00

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:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Toriilike_persist
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Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:Linux_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:MAL_ELF_LNX_Mirai_Oct10_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_2_RID2F3A
Create hunting rule
Author:Florian Roth
Description:Detects ELF malware Mirai related
Reference:Internal Research
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 21a7c07cccd6d7ad138d49beba14c67ae46489d14983fd5304ef618a557d6e00

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3735507/
  
Delivery method
Distributed via web download

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