MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1d98ff50ec918a023e73f6a40dd2f15736559350225bac3f11dd3400fa909c4. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1d98ff50ec918a023e73f6a40dd2f15736559350225bac3f11dd3400fa909c4
SHA3-384 hash: 858ff5d52979fa84f3ba8b693e84d7193782050cdb1b4698cc33bcf71cab39726b5107c959e7e6ec2b61c3f9fb702a79
SHA1 hash: 313666a2ea7089d89c0ffe42c5b664539568569a
MD5 hash: 2bba79ace72ad876ccf7065745f24e94
humanhash: july-early-ceiling-berlin
File name:morte.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:41'048 bytes
First seen:2025-08-21 16:38:15 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:Nd316Ow4H2cu5vPsnFWMrzo0WnMn5V2p6ZtsA1KA2W2AQHIR6Ccp3nbcuyD7UHQb:NRRSBtsFtX35cGUllU6Ccp3nouy8HyN
TLSH T14A03F1C29DE49B584BE7503844CBBCCD0594B21EE4E8CCCBB2F1745A7E59B759A2C4C2
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) :41'048 bytes
File size (de-compressed) :79'376 bytes
Format:linux/i386
Unpacked file: 9ff4e09e740adbe4e07857f4cd9ea69fd2d1b9f7619a8714844bbffcb5083bd5

Intelligence

File Origin
# of uploads :
1
# of downloads :
32
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Receives data from a server
Runs as daemon
Sets a written file as executable
Opens a port
Launching a process
Sends data to a server
Connection attempt
Substitutes an application name
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed threat upx
Link:
https://www.filescan.io/uploads/68a74bcc7137d684583634b5/reports/5421ddba-948a-44e6-9c6b-3e0b9dd096ea/overview
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e6a227e0-4628-4d72-9a97-c8e141009796
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1762233
Signature
Drops files in suspicious directories
Found strings related to Crypto-Mining
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1762233 Sample: morte.i686.elf Startdate: 21/08/2025 Architecture: LINUX Score: 96 28 riseonid.com 196.251.73.24, 12121, 45636, 45638 Web4AfricaZA Seychelles 2->28 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected Mirai 2->40 42 2 other signatures 2->42 10 morte.i686.elf 2->10         started        signatures3 process4 signatures5 46 Found strings related to Crypto-Mining 10->46 13 morte.i686.elf 10->13         started        process6 process7 15 morte.i686.elf 13->15         started        file8 26 /etc/init.d/sysd, POSIX 15->26 dropped 30 Sample tries to set files in /etc globally writable 15->30 32 Drops files in suspicious directories 15->32 34 Sample tries to persist itself using System V runlevels 15->34 19 morte.i686.elf 15->19         started        22 morte.i686.elf sh 15->22         started        signatures9 process10 signatures11 44 Sample deletes itself 19->44 24 sh cp 22->24         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b1d98ff50ec918a023e73f6a40dd2f15736559350225bac3f11dd3400fa909c4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1d98ff50ec918a023e73f6a40dd2f15736559350225bac3f11dd3400fa909c4/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b1d98ff50ec918a023e73f6a40dd2f15736559350225bac3f11dd3400fa909c4
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-21 06:15:31 UTC
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=whmy75iozemkai7hh5vebxjpcvzwkwjvais3vq7rdxjuad5jbhca._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access discovery linux persistence upx
Link:
https://tria.ge/reports/250821-t56fradn5y/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Deletes itself
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/c58a19f1-20d0-488b-a244-c49f85dc5a75
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b1d98ff50ec918a023e73f6a40dd2f15736559350225bac3f11dd3400fa909c4

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 b1d98ff50ec918a023e73f6a40dd2f15736559350225bac3f11dd3400fa909c4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3608051/
  
Delivery method
Distributed via web download

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