MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2ca4078493df1c862135eb8cd61dc7276accdf138131f5ab9afde0113cc7c8f4. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2ca4078493df1c862135eb8cd61dc7276accdf138131f5ab9afde0113cc7c8f4
SHA3-384 hash: ed5a154e772f8b7f1fbff1594a0993d4026bb9c848ae635737d26a33691912aced171fe8d1cf22ac3a779e0e6d25baf9
SHA1 hash: 124a0114b726b1d4593de708bc623e206f6d0477
MD5 hash: d27096fb6c9049b5b37807b3f1d22023
humanhash: texas-hamper-mars-fruit
File name:well.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:41'820 bytes
First seen:2025-08-27 17:16:52 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:/M12LnnBhp4CimBg4ZiVVXKyZIWshGm4hP1HDkiOc7xYBkjanbcuyD7UHQRjC:U12tY9iiHKSIWshGm4hP1HD9OBxnouyQ
TLSH T13013F1E5F8914716D1D9D33C48ABAC1F4A609A5F86C0ED13922CB1B8FAD0B0D4D3194B
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) :41'820 bytes
File size (de-compressed) :104'104 bytes
Format:linux/i386
Unpacked file: 40cef3cfd5467ff709f14f26fcf9e0925bf58288c2fc0cdc35e2d266f2e7af4d

Intelligence

File Origin
# of uploads :
1
# of downloads :
32
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Receives data from a server
Connection attempt
Runs as daemon
Kills critical processes
Substitutes an application name
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed threat upx
Link:
https://www.filescan.io/uploads/68af3e908d7e23876183dab2/reports/bb5696b7-aae0-4261-b494-4a2732d6ec5a/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
0
Number of processes launched:
7
Processes remaning?
true
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/2ca4078493df1c862135eb8cd61dc7276accdf138131f5ab9afde0113cc7c8f4
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
File Type:
Link:
https://opentip.kaspersky.com/2ca4078493df1c862135eb8cd61dc7276accdf138131f5ab9afde0113cc7c8f4/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e1db5e1a-caa0-46dc-bf6a-571842ab668f
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1766422
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses known network protocols on non-standard ports
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1766422 Sample: well.x86.elf Startdate: 27/08/2025 Architecture: LINUX Score: 72 44 40.135.202.64 WINDSTREAMUS United States 2->44 46 64.254.109.242, 23 VTLAUS United States 2->46 48 99 other IPs or domains 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Yara detected Mirai 2->54 56 2 other signatures 2->56 10 well.x86.elf 2->10         started        12 python3.8 dpkg 2->12         started        signatures3 process4 process5 14 well.x86.elf 10->14         started        16 well.x86.elf 10->16         started        18 well.x86.elf 10->18         started        process6 20 well.x86.elf 14->20         started        22 well.x86.elf 14->22         started        24 well.x86.elf 16->24         started        26 well.x86.elf 16->26         started        28 well.x86.elf 16->28         started        process7 30 well.x86.elf 20->30         started        32 well.x86.elf 20->32         started        34 well.x86.elf 20->34         started        36 well.x86.elf 24->36         started        38 well.x86.elf 24->38         started        process8 40 well.x86.elf 30->40         started        42 well.x86.elf 30->42         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/2ca4078493df1c862135eb8cd61dc7276accdf138131f5ab9afde0113cc7c8f4
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2ca4078493df1c862135eb8cd61dc7276accdf138131f5ab9afde0113cc7c8f4/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-27 17:20:48 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fssapbet34oimijv5ognmhohe5vmzxytqey7lk427xqbcpghzd2a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:sora botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/250827-vxehqscr5s/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Enumerates running processes
Modifies Watchdog functionality
Contacts a large (92333) amount of remote hosts
Creates a large amount of network flows
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/a4d1fed6-d10d-46f9-be92-46e49276c966
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/2ca4078493df1c862135eb8cd61dc7276accdf138131f5ab9afde0113cc7c8f4

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_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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 2ca4078493df1c862135eb8cd61dc7276accdf138131f5ab9afde0113cc7c8f4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3612690/
  
Delivery method
Distributed via web download

Comments