MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 623a439ec19f826bdd9cd68d00e38279d60b5ccd8f6fab633b1c6e84207c75a1. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 623a439ec19f826bdd9cd68d00e38279d60b5ccd8f6fab633b1c6e84207c75a1
SHA3-384 hash: 7254aa50f1d1d55784c78421ee64d8af1cd04bc0874aa38d4d07bc397db28d8f17a33672dbca492860177539b9d3e576
SHA1 hash: 70f15763bb120f35b4bcbfa47b8858bc808cd815
MD5 hash: b6694068f25fd53cbe46f07bed79aca3
humanhash: delta-alanine-indigo-finch
File name:morte.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:41'860 bytes
First seen:2025-08-02 13:01:06 UTC
Last seen:2025-08-10 15:34:33 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:UAi7PZ6edbWDz9RV49wbX8qF6k4sCfTpz+RPx1AwdQRN7eQTe0x0KNv:G7FRWDz9Q9Lpk492dmxZTzPNv
TLSH T17613F1636237A761D4F4C0BB696A14F4EEB704D4D503BF7A8E1DB9AC8996D242800DE1
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: 5bb5439a9f0fbad39c5040a46b091ddd1049f70aa036426c24654a1c45e2aa6b

Intelligence

File Origin
# of uploads :
4
# of downloads :
29
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Runs as daemon
Kills processes
Sends data to a server
Connection attempt
Substitutes an application name
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/688e0c2873b8ef6f4afb371a/reports/21413e0c-4ff8-4c6f-9f58-268c4606e50a/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
0
Number of processes launched:
3
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/623a439ec19f826bdd9cd68d00e38279d60b5ccd8f6fab633b1c6e84207c75a1
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bf64727d-8358-4db2-9f48-36073c39a819
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1749061
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1749061 Sample: morte.x86_64.elf Startdate: 02/08/2025 Architecture: LINUX Score: 68 23 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->23 25 vipcncnetwork.com 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 morte.x86_64.elf 2->10         started        signatures3 process4 process5 12 morte.x86_64.elf 10->12         started        process6 14 morte.x86_64.elf 12->14         started        process7 16 morte.x86_64.elf 14->16         started        process8 18 morte.x86_64.elf 16->18         started        21 morte.x86_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/623a439ec19f826bdd9cd68d00e38279d60b5ccd8f6fab633b1c6e84207c75a1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/623a439ec19f826bdd9cd68d00e38279d60b5ccd8f6fab633b1c6e84207c75a1/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-02 13:04:25 UTC
File Type:
ELF64 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mi5ehhwbt6bgxxm422gqby4cphlawxgnr5x2wyz3drxiiid4owqq._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/250802-p9djbagr7v/
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:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e609ef18-4712-4d05-ac2b-6bb24cdab29d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.29
Link:
https://yomi.yoroi.company/submissions/623a439ec19f826bdd9cd68d00e38279d60b5ccd8f6fab633b1c6e84207c75a1

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: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 623a439ec19f826bdd9cd68d00e38279d60b5ccd8f6fab633b1c6e84207c75a1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3586696/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3590950/
  
URLhaus
https://urlhaus.abuse.ch/url/3590622/

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