MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b81bb64eb774619193e55844ab2cedd1df6f7393dadbde64dd3f346c1a0f740a. 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 4 File information Comments
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SHA256 hash: b81bb64eb774619193e55844ab2cedd1df6f7393dadbde64dd3f346c1a0f740a
SHA3-384 hash: 4a565929ee3b2a073ba7a8d364bd67089ed700d39a0a0a859bc2f9a09b42158f951ff4a3c41e757d6c1556d6e23ae91c
SHA1 hash: 52065e159368c84b494a06ef1cf63eb84b4b84eb
MD5 hash: 947395a552ed5d0259f1bfb1046d4d33
humanhash: item-speaker-venus-speaker
File name:parm7
Download: download sample
Signature Mirai
Create hunting rule
File size:61'048 bytes
First seen:2025-06-11 21:33:25 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:sfzEVeadY+Pa8VOQb06A/o0ftGQ4JW0n+iu9N9q3UELBEV2Mj7brGA3Ul28RrIc:leadVC8Od9/oW61n+iMgLBEV2A3UoK
TLSH T11353F1A0F2263EE586E132F5FD648D879AE24EAC11F3BC138147AC1CA7C495611B54FB
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 UPX
File size (compressed) :61'048 bytes
File size (de-compressed) :159'402 bytes
Format:linux/arm
Unpacked file: f41aeb769a08045fe89d79594a6cdd8f543fad17348e15640a7d6cf1c424f463

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999.26735.17060.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6849f7408bd5d68a12e7d9e4linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Receives data from a server
Sends data to a server
Opens a port
Runs as daemon
Substitutes an application name
Deleting of the original file
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
30
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b81bb64eb774619193e55844ab2cedd1df6f7393dadbde64dd3f346c1a0f740a
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f5fa4324-2c6d-4ad8-830c-df2bc4b6fc11
Result
Threat name:
Mirai
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Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1712742
Signature
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1712742 Sample: parm7.elf Startdate: 11/06/2025 Architecture: LINUX Score: 64 17 109.202.202.202, 80 INIT7CH Switzerland 2->17 19 193.32.162.27, 18129, 39244 DATACENTERRO Romania 2->19 21 2 other IPs or domains 2->21 23 Multi AV Scanner detection for submitted file 2->23 25 Yara detected Mirai 2->25 27 Sample is packed with UPX 2->27 8 parm7.elf 2->8         started        signatures3 process4 signatures5 29 Sample deletes itself 8->29 11 parm7.elf 8->11         started        process6 process7 13 parm7.elf 11->13         started        15 parm7.elf 11->15         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b81bb64eb774619193e55844ab2cedd1df6f7393dadbde64dd3f346c1a0f740a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b81bb64eb774619193e55844ab2cedd1df6f7393dadbde64dd3f346c1a0f740a/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-06-11 21:34:52 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=xan3mtvxorqzde7flbckwlhn2hpw644t3ln54zg5h42gygqpoqfa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/250611-1fw94sdn91/
Behaviour
Reads runtime system information
Changes its process name
Deletes itself
Modifies Watchdog functionality
Mirai
Mirai family
Please note that we are no longer able to provide a coverage score for Virus Total.

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf b81bb64eb774619193e55844ab2cedd1df6f7393dadbde64dd3f346c1a0f740a

(this sample)

Mirai

elf f41aeb769a08045fe89d79594a6cdd8f543fad17348e15640a7d6cf1c424f463

  
URLhaus
https://urlhaus.abuse.ch/url/3487545/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 f41aeb769a08045fe89d79594a6cdd8f543fad17348e15640a7d6cf1c424f463
  
Dropping
MD5 5bd6a7d2d4d3f1c3dc404a1490bbc0e0

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