MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8dcab761dca0e09dd37ddafdf92ff506124633bb936ba6a4b38f3bbf61e3a10. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8dcab761dca0e09dd37ddafdf92ff506124633bb936ba6a4b38f3bbf61e3a10
SHA3-384 hash: aedbe61be14435b6869ee0409e243e9a21d4a2a9795fcba01ab565610dd192b33fe3d5fa68c84bd43d664992b2efec67
SHA1 hash: c9b1b470d04f0845b994d55e508e7c67ad2fc330
MD5 hash: 69d2ace6156e84f8229da09d3d03f6a8
humanhash: cold-lion-fanta-wolfram
File name:nwfaiehg4ewijfgriehgirehaughrarg.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:40'528 bytes
First seen:2025-08-18 16:36:12 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:4k8SXZQoydUhlTMq8atkdLktypbHKIYIdvqyIJ924DpnbcuyD7UHQRjM:4SPy0tvELkMJq/GCyIJManouy8HyY
TLSH T1B103F1D1A8BF1709F69C21735CFE398B0062629DA88B6EF06391B25676C3F142B18F54
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) :40'528 bytes
File size (de-compressed) :83'600 bytes
Format:linux/i386
Unpacked file: 45607654dc82d517889cca95b1f5ef5375dfe9523683061467d3b3a3c483036c

Intelligence

File Origin
# of uploads :
1
# of downloads :
34
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
Changes access rights for a file
Removes directories
Deleting a recently created file
Connection attempt
DNS request
Changes access rights for a written file
Runs as daemon
Substitutes an application name
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed threat upx
Link:
https://www.filescan.io/uploads/68a356b7abfbaec31824f259/reports/05a4972a-456c-47db-856c-bb7089da40a0/overview
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6934d542-d252-4b14-9f4f-456a87132fce
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1759498
Signature
Deletes system log files
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1759498 Sample: nwfaiehg4ewijfgriehgirehaug... Startdate: 18/08/2025 Architecture: LINUX Score: 72 27 anranapi.xyz 2->27 29 109.202.202.202, 80 INIT7CH Switzerland 2->29 31 4 other IPs or domains 2->31 33 Malicious sample detected (through community Yara rule) 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 Sample is packed with UPX 2->37 10 nwfaiehg4ewijfgriehgirehaughrarg.i686.elf 2->10         started        12 dash rm 2->12         started        14 dash rm 2->14         started        signatures3 39 Performs DNS queries to domains with low reputation 27->39 process4 process5 16 nwfaiehg4ewijfgriehgirehaughrarg.i686.elf 10->16         started        process6 18 nwfaiehg4ewijfgriehgirehaughrarg.i686.elf 16->18         started        process7 20 nwfaiehg4ewijfgriehgirehaughrarg.i686.elf 18->20         started        process8 22 nwfaiehg4ewijfgriehgirehaughrarg.i686.elf 20->22         started        25 nwfaiehg4ewijfgriehgirehaughrarg.i686.elf 20->25         started        signatures9 41 Manipulation of devices in /dev 22->41 43 Deletes system log files 22->43
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f8dcab761dca0e09dd37ddafdf92ff506124633bb936ba6a4b38f3bbf61e3a10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f8dcab761dca0e09dd37ddafdf92ff506124633bb936ba6a4b38f3bbf61e3a10/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-18 16:37:33 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7dokw5q5zihatxjx3wx57ex7kbqsiyz3xe3lu2slhdz3x5q6hiia._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/250818-t4rwzavr12/
Behaviour
Reads runtime system information
Changes its process name
Creates a large amount of network flows
Deletes log files
Enumerates running processes
Deletes journal logs
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/ba2cb9bb-5972-4b2c-bb96-e61a2c11f6fe
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/f8dcab761dca0e09dd37ddafdf92ff506124633bb936ba6a4b38f3bbf61e3a10

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: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 f8dcab761dca0e09dd37ddafdf92ff506124633bb936ba6a4b38f3bbf61e3a10

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3606022/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3606031/
  
URLhaus
https://urlhaus.abuse.ch/url/3606051/

Comments