MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4aa8c1b92e2a72e292939f244bb663e2871b77a2cccff688e5afadd7faf09ab. 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: 6


Intelligence 6 IOCs YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4aa8c1b92e2a72e292939f244bb663e2871b77a2cccff688e5afadd7faf09ab
SHA3-384 hash: 3183d67946ceeb05c98e5f4f93d7d8016977806d81f30133c5f49a277a502c69b6d3f0ffb70ae0660a327ee275228c65
SHA1 hash: fd36225eac666b9fe2e83d31e978962b971fa2fc
MD5 hash: 85ddb37190ba25fba13136d2a498df15
humanhash: hydrogen-juliet-twenty-maine
File name:amd64
Download: download sample
Signature Mirai
Create hunting rule
File size:6'099'106 bytes
First seen:2026-05-20 14:05:48 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:fIULkj9iHa49k/3lnu7U4cm2b7vzQnrWEXavCAfWaWEI4ZYHG8taAKU/V8CKlK1Z:fI9j8ldrKvkR4Z18t4kw6VEa
TLSH T1B8565B07FC5915E9C1AED23589729212BB717C4A1F3123D32B60F6382F76BD0AAB9354
telfhash t1d05286714ebd34b5a6a6da11f3a3b5f466371c6562f834b11063e981efc1e8018f683b
gimphash e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
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 :
52
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sets a written file as executable
Sends data to a server
Creating a file
Receives data from a server
Writes files to system directory
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/24e9558a-96d0-4b01-969d-0289586cb24d
Behavior Graph:
Download SVG
%3 guuid=92687392-1900-0000-1be8-1d4f0b0a0000 pid=2571 /usr/bin/sudo guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2581 /tmp/sample.bin write-config write-file guuid=92687392-1900-0000-1be8-1d4f0b0a0000 pid=2571->guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2581 execve guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2611 /tmp/sample.bin guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2581->guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2611 clone guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2612 /tmp/sample.bin guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2581->guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2612 clone guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2613 /tmp/sample.bin net guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2581->guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2613 clone guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2614 /tmp/sample.bin guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2581->guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2614 clone guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2615 /tmp/sample.bin guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2581->guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2615 clone guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2632 /tmp/sample.bin send-data guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2581->guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2632 clone a39b8cc0-a6b9-574b-b725-6aedbd500925 89.190.158.132:9111 guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2613->a39b8cc0-a6b9-574b-b725-6aedbd500925 con guuid=95c6d195-1900-0000-1be8-1d4f150a0000 pid=2632->a39b8cc0-a6b9-574b-b725-6aedbd500925 send: 14B
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0b22b6e6-d188-4561-9c0d-f8af059218d5
Score:
73%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a4aa8c1b92e2a72e292939f244bb663e2871b77a2cccff688e5afadd7faf09ab
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a4aa8c1b92e2a72e292939f244bb663e2871b77a2cccff688e5afadd7faf09ab/
Threat name:
Linux.Hacktool.Flooder
Create hunting rule
Status:
Malicious
First seen:
2026-05-20 14:07:47 UTC
File Type:
ELF64 Little (Exe)
AV detection:
3 of 36 (8.33%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=usviyg4s4kts4kjjhhzejo3ghyuhdn32ftgp62eoll5n275pbgvq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
defense_evasion discovery linux persistence privilege_escalation
Link:
https://tria.ge/reports/260520-rekegsfv4s/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Modifies Bash startup script
Creates/modifies environment variables
Write file to user bin folder
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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Suspicious_Golang_Binary
Create hunting rule
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Create hunting rule
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 a4aa8c1b92e2a72e292939f244bb663e2871b77a2cccff688e5afadd7faf09ab

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3833944/
  
Delivery method
Distributed via web download

Comments