MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 491ce73cc7683ea2e39992e71183a05673954c02985d741e16e3fe76382b1ff5. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 491ce73cc7683ea2e39992e71183a05673954c02985d741e16e3fe76382b1ff5
SHA3-384 hash: 20cb0a4dd2974224f95784411357602aa8cca1b7a63d8ec80e498a6d7662ba0f2205a1b164da8e5f36f31a69329eb2e3
SHA1 hash: abb430439bc6d754dca0372a71cb3a13ec1e42e2
MD5 hash: 581f028152a8560774ce6808aab83f99
humanhash: rugby-johnny-april-mars
File name:db0fa4b8db0333367e9bda3ab68b8042.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:58'224 bytes
First seen:2025-08-20 20:22:15 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:i6C5HDKQG7qVwEsqeQGDsXWs/kd9bvQ+hMG4:NCZuMwrbQGoXWsMd99hs
TLSH T15E4302FE8567BB23D5B32D35EA684163291F2BB188DFB1173456A6C90E8070CE75C887
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) :58'224 bytes
File size (de-compressed) :157'078 bytes
Format:linux/arm
Unpacked file: 4f7071ec1561ed5d900e2d9afbc49ccd5ad6537b97c2a51df1508afed0f12fb3

Intelligence

File Origin
# of uploads :
1
# of downloads :
35
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sends data to a server
Receives data from a server
Connection attempt
Runs as daemon
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade mirai obfuscated packed threat upx
Link:
https://www.filescan.io/uploads/68a62e90419c816a6e8df603/reports/ae12ae0c-276e-4c10-9535-244487862ddc/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/fb77aeec-b2a6-4580-9fa0-0fb72f144808
Behavior Graph:
Download SVG
%3 guuid=98014638-1d00-0000-335d-8e346e090000 pid=2414 /usr/bin/sudo guuid=5717523a-1d00-0000-335d-8e3470090000 pid=2416 /tmp/sample.bin guuid=98014638-1d00-0000-335d-8e346e090000 pid=2414->guuid=5717523a-1d00-0000-335d-8e3470090000 pid=2416 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a299605b-6146-4306-8108-e21f64521837
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1761421
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/491ce73cc7683ea2e39992e71183a05673954c02985d741e16e3fe76382b1ff5
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/491ce73cc7683ea2e39992e71183a05673954c02985d741e16e3fe76382b1ff5/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-20 20:22:47 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jeooopghna7kfy4zsltrda5akzzzktactboxihqw4p7hmobld72q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/250820-y5v28swxh1/
Behaviour
Reads runtime system information
Changes its process name
Writes file to system bin folder
Modifies Watchdog functionality
Contacts a large (189621) amount of remote hosts
Creates a large amount of network flows
Mirai
Mirai family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/de076970-5fee-4a64-91b6-f77e4dbdeed9
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/491ce73cc7683ea2e39992e71183a05673954c02985d741e16e3fe76382b1ff5

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 491ce73cc7683ea2e39992e71183a05673954c02985d741e16e3fe76382b1ff5

(this sample)

Mirai

elf 4f7071ec1561ed5d900e2d9afbc49ccd5ad6537b97c2a51df1508afed0f12fb3

  
URLhaus
https://urlhaus.abuse.ch/url/3598083/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 4f7071ec1561ed5d900e2d9afbc49ccd5ad6537b97c2a51df1508afed0f12fb3
  
Dropping
MD5 63e83fcdae02a092ec6392837fcbcb28

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