MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f99ff75a8884ebd15e69a84e340fae765aa3f8d9b036e5a5f93fb1440b49e55b. 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 11 File information Comments

SHA256 hash: f99ff75a8884ebd15e69a84e340fae765aa3f8d9b036e5a5f93fb1440b49e55b
SHA3-384 hash: 0eab105ff5941a4c83b81ef72d0d44caac5b75ee362008d84476ba1d54fd0d65b0c6af6effc4802026fc990dfc32bbae
SHA1 hash: a2734c433769e69cbc95119780aecfa0e43c2615
MD5 hash: 48afbf70a95d1d136cb122096bc10985
humanhash: yellow-delta-california-south
File name:x86_64
Download: download sample
Signature Mirai
File size:104'480 bytes
First seen:2025-12-24 06:01:27 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:EunK6Ym8mjaU3rMUQKS5/P7O9dEsKFDB:EAKhMcd7kaF
TLSH T169A36A06B18080FDC5DAD2784EAEA217D932F46C2271B55E27D47F263E4EE103B5F266
telfhash t15441bb702a2239a831e3aa26734ecc76ec721a5019c171d5ee673dd68e2bbc41d52827
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 :
45
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-12-24T04:20:00Z UTC
Last seen:
2025-12-24T04:41:00Z UTC
Hits:
~10
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
76 / 100
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses STUN server to do NAT traversial
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1838630 Sample: x86_64.elf Startdate: 24/12/2025 Architecture: LINUX Score: 76 34 stun.l.google.com 2->34 36 156.158.98.175, 23 airtel-tz-asTZ Tanzania United Republic of 2->36 38 100 other IPs or domains 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected Mirai 2->46 8 x86_64.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 48 Uses STUN server to do NAT traversial 34->48 process4 process5 12 x86_64.elf 8->12         started        14 x86_64.elf 8->14         started        16 x86_64.elf 8->16         started        18 41 other processes 8->18 process6 20 x86_64.elf 12->20         started        22 x86_64.elf 14->22         started        24 x86_64.elf 16->24         started        26 x86_64.elf 18->26         started        28 x86_64.elf 18->28         started        30 x86_64.elf 18->30         started        32 35 other processes 18->32
Threat name:
Linux.Trojan.Generic
Status:
Suspicious
First seen:
2025-12-24 06:02:27 UTC
File Type:
ELF64 Little (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
credential_access discovery linux
Behaviour
Reads runtime system information
Writes file to tmp directory
Changes its process name
Reads process memory
Enumerates running processes
Contacts a large (38663) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-7640640-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_0cd591cd Linux_Trojan_Gafgyt_33b4111a Linux_Trojan_Gafgyt_a33a8363 Linux_Trojan_Mirai_1cb033f3
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
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_0cd591cd
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_1cb033f3
Author:Elastic Security
Rule name:unixredflags3
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 f99ff75a8884ebd15e69a84e340fae765aa3f8d9b036e5a5f93fb1440b49e55b

(this sample)

  
Delivery method
Distributed via web download

Comments