MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de31588241986f5be236903b4299cafd3ed132d031552aedb37410778339ce40. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: de31588241986f5be236903b4299cafd3ed132d031552aedb37410778339ce40
SHA3-384 hash: b1747675b79a4a49be5f17e1bc90c001f733ee243d336171c5cc4e3dd17d090c442a837654ac1332d510131c971f881a
SHA1 hash: 953d52ab2baa34acc455643f2395622c7aa83ad8
MD5 hash: 6384706e377a0668b4a44abf8d45c2a3
humanhash: table-moon-pennsylvania-mountain
File name:nx86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:41'860 bytes
First seen:2025-12-20 13:02:53 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:1Ai7PZ6edbWDShjnN3cfMMJdj4sGAG6lzZteZzTkEtfy7H0x0Kz:z7FRWDWN3HMvj4umzIEnPz
TLSH T12613F1631223BA75EC5246FB29FA1D7CFFD25C22D7432B334DC624ED55AAC648102DA2
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) :41'860 bytes
File size (de-compressed) :85'696 bytes
Format:linux/amd64
Unpacked file: 9a9e164179dd3476d495eba17d09cb9c441a6fd96798fbbc7a3859da11832521

Intelligence

File Origin
# of uploads :
1
# of downloads :
45
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/9c43e49a-e5a1-4b19-9768-2883dd6327b1/
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/69469eac3f8fdbf8e94cf764/reports/0e917ee8-ca6c-4dc6-835b-b751fa15795a/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-12-20T05:22:00Z UTC
Last seen:
2025-12-20T13:05:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl
Link:
https://opentip.kaspersky.com/de31588241986f5be236903b4299cafd3ed132d031552aedb37410778339ce40/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7d772d0e-80dd-424c-aa31-3680837d7e87
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1836736
Signature
Deletes system log files
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sends malformed DNS queries
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1836736 Sample: nx86_64.elf Startdate: 20/12/2025 Architecture: LINUX Score: 72 23 latinashosting.com. [malformed] 2->23 25 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->25 31 Malicious sample detected (through community Yara rule) 2->31 33 Multi AV Scanner detection for submitted file 2->33 35 Sample is packed with UPX 2->35 10 nx86_64.elf 2->10         started        signatures3 37 Sends malformed DNS queries 23->37 process4 process5 12 nx86_64.elf 10->12         started        process6 14 nx86_64.elf 12->14         started        process7 16 nx86_64.elf 14->16         started        process8 18 nx86_64.elf 16->18         started        21 nx86_64.elf 16->21         started        signatures9 27 Manipulation of devices in /dev 18->27 29 Deletes system log files 18->29
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/de31588241986f5be236903b4299cafd3ed132d031552aedb37410778339ce40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/de31588241986f5be236903b4299cafd3ed132d031552aedb37410778339ce40/
Verdict:
Malicious
Threat:
Family.Mirai
Link:
https://tip.neiki.dev/file/de31588241986f5be236903b4299cafd3ed132d031552aedb37410778339ce40
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-20 08:36:35 UTC
File Type:
ELF64 Little (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3yyvrasbtbxvxyrwsa5ufgok7u7ncmwqgfksv3ntoqihpazzzzaa._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/251220-qanqnsskcs/
Behaviour
Reads runtime system information
Changes its process name
Deletes log files
Enumerates running processes
Deletes Audit logs
Deletes journal logs
Deletes system logs
Mirai
Mirai family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e7e0666d-887e-48ad-9eb1-cdf26830c49d
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/de31588241986f5be236903b4299cafd3ed132d031552aedb37410778339ce40

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: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 de31588241986f5be236903b4299cafd3ed132d031552aedb37410778339ce40

(this sample)

Mirai

elf 9a9e164179dd3476d495eba17d09cb9c441a6fd96798fbbc7a3859da11832521

  
URLhaus
https://urlhaus.abuse.ch/url/3737949/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 9a9e164179dd3476d495eba17d09cb9c441a6fd96798fbbc7a3859da11832521
  
Dropping
MD5 a3242c238e004d0a798a571245ca5fa1

Comments