MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b398a7135794ec6da754b85bee8de4660e33026035543bfb06a41f78844bffae. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b398a7135794ec6da754b85bee8de4660e33026035543bfb06a41f78844bffae
SHA3-384 hash: 51df70f4372e6ded0ee14713886dffe77c1a2d1d59332d8fbc7a5432b1b664fdef55cbc87123dfb70d29be3f62731060
SHA1 hash: 517d7fe605e0f9f33eea6de0721f6df4ddea09a4
MD5 hash: e4dd7843e20f0a5fea0dcf0d725f1782
humanhash: texas-washington-zebra-hawaii
File name:x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:33'696 bytes
First seen:2025-08-18 07:14:50 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:ffs3aMiW1Vx2K8l0XxF9GZQ8HWv/fRI6V:f+H8lAxF9GZQ8P6V
TLSH T110E2E062824FE670E53536B33672166CF9487457AA00936B0593F7FECEF35106B19E12
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
40
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Collects information on the CPU
Runs as daemon
Creating a file
Mounts file systems
Opens a port
Kills processes
Connection attempt
Substitutes an application name
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/68a2d320a4bdac9f5b9b5b5e/reports/34ff0ed3-69d2-4cf5-940b-05fcfe4b341c/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/21647cd4-169f-409f-ae76-36290a82f77c
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1759091
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1759091 Sample: x86_64.elf Startdate: 18/08/2025 Architecture: LINUX Score: 68 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Yara detected Mirai 2->32 8 x86_64.elf 2->8         started        10 xfce4-session xfce4-panel 2->10         started        12 xfce4-session rm 2->12         started        14 17 other processes 2->14 process3 process4 16 x86_64.elf 8->16         started        process5 18 x86_64.elf 16->18         started        20 x86_64.elf 16->20         started        23 x86_64.elf 16->23         started        signatures6 25 x86_64.elf 18->25         started        34 Sample tries to kill multiple processes (SIGKILL) 20->34 process7 signatures8 36 Sample tries to kill multiple processes (SIGKILL) 25->36
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b398a7135794ec6da754b85bee8de4660e33026035543bfb06a41f78844bffae
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b398a7135794ec6da754b85bee8de4660e33026035543bfb06a41f78844bffae/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-18 07:15:51 UTC
File Type:
ELF64 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=womkoe2xstwg3j2uxbn65dpemyhdgatagvkdx6yguqpxrbcl76xa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
antivm defense_evasion discovery linux
Link:
https://tria.ge/reports/250818-h3nmda1xc1/
Behaviour
Reads runtime system information
Reads system network configuration
Changes its process name
Checks CPU configuration
Enumerates active TCP sockets
Enumerates running processes
Modifies Watchdog functionality
Renames itself
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/176d70b5-130a-43ff-8847-bca5acadd82c
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/b398a7135794ec6da754b85bee8de4660e33026035543bfb06a41f78844bffae

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: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_antiunpack_elf64
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:UPX Anti-Unpacking technique to magic renamed for ELF64

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf b398a7135794ec6da754b85bee8de4660e33026035543bfb06a41f78844bffae

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3593896/
  
Delivery method
Distributed via web download

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