MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40bba5b527367bd4be987615e7c91ea88f70aa2be24850e42d9bf4c0b97e6f3b. 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
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SHA256 hash: 40bba5b527367bd4be987615e7c91ea88f70aa2be24850e42d9bf4c0b97e6f3b
SHA3-384 hash: 4f15815843c89d553fce71cec5e7fa43077efadce5937498ef564a7fd4b5da8c208be7e57a990d5d9b900126c584fad4
SHA1 hash: f3d49f4bb8797939ab0e18155c2384f083ee5f22
MD5 hash: 80026131bbadcd5df73129c1fdcb09ad
humanhash: golf-texas-hydrogen-bakerloo
File name:arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:5'963'938 bytes
First seen:2026-05-20 12:57:34 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:UtDiXRfVdc/p6z/fzZuJmI1zFUFZ6a+9mLoEWq5Ey:YDiXRfVSp2/fzUmP3+9BEfEy
TLSH T132561897BDD24942C4E43A7BB9BD80C473630EB98B9652575D04FE383ABE1D90E38358
telfhash t122d02e288e2c2e903ba0010008b4002e9ff830f822102ba4cfae328e0b0022a40e4069
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 :
60
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.ELF.Flooder-ACG.15796714.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
base64 expand golang lolbin
Link:
https://www.filescan.io/uploads/6a0daffb875badc3b38e6338/reports/579f1089-a699-4371-9bb3-79e708cdbf0f/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-05-20T10:24:00Z UTC
Last seen:
2026-05-20T10:40:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/40bba5b527367bd4be987615e7c91ea88f70aa2be24850e42d9bf4c0b97e6f3b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8ace3bac-004c-447a-a62e-936276c0b6af
Behavior Graph:
Download SVG
%3 guuid=40b4800b-1b00-0000-8ab5-7a59d50b0000 pid=3029 /usr/bin/sudo guuid=cd66cb0d-1b00-0000-8ab5-7a59dd0b0000 pid=3037 /tmp/sample.bin guuid=40b4800b-1b00-0000-8ab5-7a59d50b0000 pid=3029->guuid=cd66cb0d-1b00-0000-8ab5-7a59dd0b0000 pid=3037 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/573130b9-3c37-4a55-b4e7-dc0327fceb48
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/40bba5b527367bd4be987615e7c91ea88f70aa2be24850e42d9bf4c0b97e6f3b
Detection:
mirai
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Link:
https://mwdb.cert.pl/sample/40bba5b527367bd4be987615e7c91ea88f70aa2be24850e42d9bf4c0b97e6f3b/
Threat name:
Linux.Hacktool.Flooder
Create hunting rule
Status:
Malicious
First seen:
2026-05-20 12:58:43 UTC
File Type:
ELF32 Little (Exe)
AV detection:
9 of 24 (37.50%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ic52lnjhgz55jpuyoyk6psi6vchxbkrl4jefbzbntp2mbol6n45q._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
defense_evasion discovery persistence privilege_escalation
Link:
https://tria.ge/reports/260520-p7s6zsd13s/
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.
Threat name:
Suspicious File
Score:
0.30
Link:
https://yomi.yoroi.company/submissions/40bba5b527367bd4be987615e7c91ea88f70aa2be24850e42d9bf4c0b97e6f3b

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
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
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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
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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 40bba5b527367bd4be987615e7c91ea88f70aa2be24850e42d9bf4c0b97e6f3b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3833945/
  
Delivery method
Distributed via web download

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