MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a76639e5ec05e6394636795bb2873c0127b0aa340d9f0f0067377263008d9dad. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a76639e5ec05e6394636795bb2873c0127b0aa340d9f0f0067377263008d9dad
SHA3-384 hash: 89e8200323bc1aaed0f3897f60e10dc7c2edf30eaadcd4ef76336598173ec34fc68f1abc2e9230039ce5c16f90613f6d
SHA1 hash: 0b19b44221af8a3584f6b65c0bb98189727a1291
MD5 hash: 9f89d33e5367cd6bd12509aac99965f8
humanhash: comet-harry-mountain-yankee
File name:xpx86
Download: download sample
Signature Mirai
Create hunting rule
File size:32'276 bytes
First seen:2025-12-18 21:17:16 UTC
Last seen:2026-01-25 15:32:40 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:WBbVkTrCrlN46JCSVO0smsL0AjDTK1xtltOF:KpyADsLjPK1xW
TLSH T1A0E2F14A88DCAE0ECA6553BC556E7780FA15A4A42F5F53016ED5CCC2A8033F5F131933
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) :32'276 bytes
File size (de-compressed) :59'152 bytes
Format:linux/i386
Unpacked file: 7c7617c4a0d9a7441a89e5622526aeab5760cf301ed80e9dbbde9811f04ad572

Intelligence

File Origin
# of uploads :
2
# of downloads :
52
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/64212ff6-36e6-47ce-8763-c04846ba6444/
Detection(s):
SecuriteInfo.com.Linux.Mirai-17.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Kills processes
Sends data to a server
Receives data from a server
Runs as daemon
Opens a port
Substitutes an application name
Deleting of the original file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai packed upx
Link:
https://www.filescan.io/uploads/69446f923f8fdbf8e94b5836/reports/b7f52114-5636-4e11-a90b-b8a6e7a61179/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-18T18:33:00Z UTC
Last seen:
2025-12-19T13:05:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/a76639e5ec05e6394636795bb2873c0127b0aa340d9f0f0067377263008d9dad/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5a6bb674-4201-4584-b778-671dc445fc73
Behavior Graph:
Download SVG
%3 guuid=a993cc54-1b00-0000-a5dd-a9b62b0c0000 pid=3115 /usr/bin/sudo guuid=f2792757-1b00-0000-a5dd-a9b6340c0000 pid=3124 /tmp/sample.bin delete-file net guuid=a993cc54-1b00-0000-a5dd-a9b62b0c0000 pid=3115->guuid=f2792757-1b00-0000-a5dd-a9b6340c0000 pid=3124 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=f2792757-1b00-0000-a5dd-a9b6340c0000 pid=3124->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=3ea86f57-1b00-0000-a5dd-a9b6360c0000 pid=3126 /tmp/sample.bin net send-data zombie guuid=f2792757-1b00-0000-a5dd-a9b6340c0000 pid=3124->guuid=3ea86f57-1b00-0000-a5dd-a9b6360c0000 pid=3126 clone guuid=3ea86f57-1b00-0000-a5dd-a9b6360c0000 pid=3126->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 9c578459-fc2d-5995-9925-ebe708f9b2a3 94.156.152.67:18129 guuid=3ea86f57-1b00-0000-a5dd-a9b6360c0000 pid=3126->9c578459-fc2d-5995-9925-ebe708f9b2a3 send: 7B guuid=35f47957-1b00-0000-a5dd-a9b6370c0000 pid=3127 /tmp/sample.bin guuid=3ea86f57-1b00-0000-a5dd-a9b6360c0000 pid=3126->guuid=35f47957-1b00-0000-a5dd-a9b6370c0000 pid=3127 clone guuid=84d47c57-1b00-0000-a5dd-a9b6380c0000 pid=3128 /tmp/sample.bin guuid=3ea86f57-1b00-0000-a5dd-a9b6360c0000 pid=3126->guuid=84d47c57-1b00-0000-a5dd-a9b6380c0000 pid=3128 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6400d691-255a-48cc-9170-c0eb007a375e
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1835968
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1835968 Sample: xpx86.elf Startdate: 18/12/2025 Architecture: LINUX Score: 72 17 94.156.152.67, 18129, 34856 NET1-ASBG Bulgaria 2->17 19 Malicious sample detected (through community Yara rule) 2->19 21 Multi AV Scanner detection for submitted file 2->21 23 Yara detected Mirai 2->23 25 Sample is packed with UPX 2->25 8 xpx86.elf 2->8         started        signatures3 process4 signatures5 27 Sample deletes itself 8->27 11 xpx86.elf 8->11         started        process6 process7 13 xpx86.elf 11->13         started        15 xpx86.elf 11->15         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a76639e5ec05e6394636795bb2873c0127b0aa340d9f0f0067377263008d9dad
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a76639e5ec05e6394636795bb2873c0127b0aa340d9f0f0067377263008d9dad/
Verdict:
Malicious
Threat:
Family.Mirai
Link:
https://tip.neiki.dev/file/a76639e5ec05e6394636795bb2873c0127b0aa340d9f0f0067377263008d9dad
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-18 21:18:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5tdtzpmaxtdsrrwpfn3fbz4aet3bkrubwpq6adhg5zggaentwwq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251218-z49pnsbp5w/
Behaviour
Reads runtime system information
Changes its process name
Deletes itself
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b8a4be10-d355-4585-8c87-da28caedea02
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.50
Link:
https://yomi.yoroi.company/submissions/a76639e5ec05e6394636795bb2873c0127b0aa340d9f0f0067377263008d9dad

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 a76639e5ec05e6394636795bb2873c0127b0aa340d9f0f0067377263008d9dad

(this sample)

Mirai

elf 7c7617c4a0d9a7441a89e5622526aeab5760cf301ed80e9dbbde9811f04ad572

  
URLhaus
https://urlhaus.abuse.ch/url/3736610/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 7c7617c4a0d9a7441a89e5622526aeab5760cf301ed80e9dbbde9811f04ad572
  
Dropping
MD5 9df99a866c6a2cec2618474729346b8d
  
URLhaus
https://urlhaus.abuse.ch/url/3737053/

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