MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b399c3bf1089f50229ad2583e6cadf48534614cf7ac8a032aa26bff441978426. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b399c3bf1089f50229ad2583e6cadf48534614cf7ac8a032aa26bff441978426
SHA3-384 hash: 16a0223bb00d9b88fba25bc851cd08f756eebb4630f61b7a323a5bf3bfaefc085603865c621a27e7a7a6c7a21fdf1c24
SHA1 hash: e17f1e3f308a4ecc7c5e3d8b7251273fe0c1ae64
MD5 hash: 40447ca01059307419342f1f8555adc2
humanhash: east-network-video-princess
File name:wlan.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:3'999'008 bytes
First seen:2026-03-30 03:26:39 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:4TAjIKerSFRL+ICp3RJGtNqJ4s94+8igQmuYUI0qmJ+RY23a4PCy:4TAjherS/+IAKzvskigJKI07uB3azy
TLSH T182065A62BC90CA62CBC066BAFB5E829C73135B75D2DF71068D14473436EBD5A0E3B642
telfhash t13fe06165e9b203f3b145059d91bda42625b320edc34019709b78ad375d14fd16011c33
Magika elf
Reporter abuse_ch
Tags:elf Hajime mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Detection(s):
Sanesecurity.Malware.30479.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Launching a process
Collects information on the CPU
Sets a written file as executable
Opens a port
Changes the time when the file was created, accessed, or modified
Receives data from a server
Creating a file
Locks files
Collects information on the network activity
Runs as daemon
DNS request
Connection attempt
Changes access rights for a written file
Manages services
Creating a process from a recently created file
Collects information on the RAM
Kills processes
Creating a file in the %temp% directory
Writes files to system directory
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Performs a bruteforce attack in the network
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 bash expand gcc hajime lolbin masquerade rust
Link:
https://www.filescan.io/uploads/69c9ed922346b9da57af5208/reports/50de3d69-84a1-4e7e-8d6d-22368f46177f/overview
Verdict:
Unknown
File Type:
elf.32.le
Link:
https://opentip.kaspersky.com/b399c3bf1089f50229ad2583e6cadf48534614cf7ac8a032aa26bff441978426/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5e5d27c3-ba34-42b3-8134-616098ce9398
Behavior Graph:
Download SVG
%3 guuid=3e3dcf5b-1800-0000-bb1b-ec6ec60c0000 pid=3270 /usr/bin/sudo guuid=dea8eb5d-1800-0000-bb1b-ec6ec80c0000 pid=3272 /tmp/sample.bin guuid=3e3dcf5b-1800-0000-bb1b-ec6ec60c0000 pid=3270->guuid=dea8eb5d-1800-0000-bb1b-ec6ec80c0000 pid=3272 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/a701dea7-0c2a-4bff-ae89-c8291e06c46e
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b399c3bf1089f50229ad2583e6cadf48534614cf7ac8a032aa26bff441978426
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b399c3bf1089f50229ad2583e6cadf48534614cf7ac8a032aa26bff441978426/
Threat name:
Linux.Trojan.Hajime
Create hunting rule
Status:
Malicious
First seen:
2026-03-30 03:27:22 UTC
File Type:
ELF32 Little (Exe)
AV detection:
5 of 36 (13.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wom4hpyqrh2qeknnewb6nsw7jbjumfgpplekamvke277iqmxqqta._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
antivm credential_access defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260330-dzvt3agy7n/
Behaviour
Reads runtime system information
Writes file to shm directory
Writes file to tmp directory
Changes its process name
Checks CPU configuration
Reads CPU attributes
Reads system network configuration
Modifies Bash startup script
Reads process memory
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Modifies systemd
Reads network interface configuration
Reads system routing table
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.30
Link:
https://yomi.yoroi.company/submissions/b399c3bf1089f50229ad2583e6cadf48534614cf7ac8a032aa26bff441978426

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:APT_Bitter_ZxxZ_Downloader
Create hunting rule
Author:SECUINFRA Falcon Team (@SI_FalconTeam)
Description:Detects Bitter (T-APT-17) ZxxZ Downloader
Reference:https://www.secuinfra.com/en/techtalk/whatever-floats-your-boat-bitter-apt-continues-to-target-bangladesh
Rule name:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:Linux_Generic_Threat_1ac392ca
Create hunting rule
Author:Elastic Security
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:WHIRLPOOL_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for WhirlPool constants

File information

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

Web download

Mirai

elf b399c3bf1089f50229ad2583e6cadf48534614cf7ac8a032aa26bff441978426

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3795973/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3795966/
  
URLhaus
https://urlhaus.abuse.ch/url/3795970/

Comments