MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a84d5daafc0c5b774caaa7b1d81c84a3a11493c5e5b37af71067fd42bcd3afa. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a84d5daafc0c5b774caaa7b1d81c84a3a11493c5e5b37af71067fd42bcd3afa
SHA3-384 hash: 4e90da87338071978fd99961a74ca11d0c8d9b354ba3b779e625ab01748c7536dfe5d49844107abffaf44b64898163c3
SHA1 hash: 30217a0517dfa83cd304ddd8c6028efc726b7486
MD5 hash: 0f344b95337cf5f1aa5265e56142c6bd
humanhash: burger-kilo-seventeen-wyoming
File name:morte.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:40'588 bytes
First seen:2025-08-21 04:33:20 UTC
Last seen:2025-08-22 02:35:22 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:BmxDOghm76GF6/j+zYEK1Cpj2ld1n26lL4Ex0rCG:BY9EgjUdRpiv13FFG
TLSH T16D03E1F23B7DC77AF9650535184C51C8BAB17E5B9B4207CB14EEB08F2996A0FAD05E40
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) :40'588 bytes
File size (de-compressed) :77'696 bytes
Format:linux/amd64
Unpacked file: aa002f35f9b8cacd55c11f85211fd74b173800994d4977e05dd04e28624fe911

Intelligence

File Origin
# of uploads :
2
# of downloads :
33
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Opens a port
Sets a written file as executable
DNS request
Runs as daemon
Deletes a file
Sends data to a server
Connection attempt
Launching a process
Writes files to system directory
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links 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/68a6a22aa4bdac9f5ba21ba3/reports/3945e1a9-3231-4060-934f-41f98b30f137/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/df915d21-0e3a-4336-b212-577ee80b404c
Behavior Graph:
Download SVG
%3 guuid=885b7501-1f00-0000-ba94-6314120a0000 pid=2578 /usr/bin/sudo guuid=c0b3f603-1f00-0000-ba94-63141a0a0000 pid=2586 /tmp/sample.bin mprotect-exec net guuid=885b7501-1f00-0000-ba94-6314120a0000 pid=2578->guuid=c0b3f603-1f00-0000-ba94-63141a0a0000 pid=2586 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=c0b3f603-1f00-0000-ba94-63141a0a0000 pid=2586->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=05ee7004-1f00-0000-ba94-63141c0a0000 pid=2588 /tmp/sample.bin zombie guuid=c0b3f603-1f00-0000-ba94-63141a0a0000 pid=2586->guuid=05ee7004-1f00-0000-ba94-63141c0a0000 pid=2588 clone guuid=87577b04-1f00-0000-ba94-63141e0a0000 pid=2590 /tmp/sample.bin write-config zombie guuid=05ee7004-1f00-0000-ba94-63141c0a0000 pid=2588->guuid=87577b04-1f00-0000-ba94-63141e0a0000 pid=2590 clone guuid=81e3e104-1f00-0000-ba94-63141f0a0000 pid=2591 /usr/bin/dash guuid=87577b04-1f00-0000-ba94-63141e0a0000 pid=2590->guuid=81e3e104-1f00-0000-ba94-63141f0a0000 pid=2591 execve guuid=05eaea05-1f00-0000-ba94-6314250a0000 pid=2597 /tmp/sample.bin delete-file dns net send-data guuid=87577b04-1f00-0000-ba94-63141e0a0000 pid=2590->guuid=05eaea05-1f00-0000-ba94-6314250a0000 pid=2597 clone guuid=5c190b05-1f00-0000-ba94-6314210a0000 pid=2593 /usr/bin/cp guuid=81e3e104-1f00-0000-ba94-63141f0a0000 pid=2591->guuid=5c190b05-1f00-0000-ba94-6314210a0000 pid=2593 execve guuid=05eaea05-1f00-0000-ba94-6314250a0000 pid=2597->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 93B bd521c90-acbc-5fbf-8f56-b34657f8083c codingvix.win:12121 guuid=05eaea05-1f00-0000-ba94-6314250a0000 pid=2597->bd521c90-acbc-5fbf-8f56-b34657f8083c send: 43B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f03a76cd-4e15-4d93-b044-7f58442255b2
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1761609
Signature
Drops files in suspicious directories
Drops invisible ELF files
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: 1761609 Sample: morte.x86_64.elf Startdate: 21/08/2025 Architecture: LINUX Score: 100 32 codingvix.win 185.14.92.254, 12121, 35172, 35174 INTERCOLO-ASintercoloIP-BackboneDE Germany 2->32 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected Mirai 2->44 46 2 other signatures 2->46 10 morte.x86_64.elf 2->10         started        signatures3 process4 signatures5 54 Found strings related to Crypto-Mining 10->54 13 morte.x86_64.elf 10->13         started        process6 process7 15 morte.x86_64.elf 13->15         started        file8 30 /etc/init.d/sysd, POSIX 15->30 dropped 34 Sample tries to set files in /etc globally writable 15->34 36 Drops files in suspicious directories 15->36 38 Sample tries to persist itself using System V runlevels 15->38 19 morte.x86_64.elf sh 15->19         started        21 morte.x86_64.elf 15->21         started        signatures9 process10 signatures11 24 sh cp 19->24         started        48 Sample deletes itself 21->48 process12 file13 28 /usr/bin/.sh, ELF 24->28 dropped 50 Drops invisible ELF files 24->50 52 Drops files in suspicious directories 24->52 signatures14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8a84d5daafc0c5b774caaa7b1d81c84a3a11493c5e5b37af71067fd42bcd3afa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a84d5daafc0c5b774caaa7b1d81c84a3a11493c5e5b37af71067fd42bcd3afa/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-21 04:36:32 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rkcnlwvpydc3o5gkvj5r3aoiji5bcsj4lzntpl3raz75ik6nhl5a._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-e74bvay1cw/
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
Write file to user bin folder
Deletes itself
Mirai
Mirai family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/801d6c13-28a9-4753-83e5-2848e00da08d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/8a84d5daafc0c5b774caaa7b1d81c84a3a11493c5e5b37af71067fd42bcd3afa

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 8a84d5daafc0c5b774caaa7b1d81c84a3a11493c5e5b37af71067fd42bcd3afa

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3607633/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3607823/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments