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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b33bd887a1de3f0935c10d159dca99e123dc251a3074c2caf5085ed21334ee2. 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 8 File information Comments

SHA256 hash: 3b33bd887a1de3f0935c10d159dca99e123dc251a3074c2caf5085ed21334ee2
SHA3-384 hash: b8f83fecaf61e10803b796b3cf3f33d8f5a4db16b1d46b5e3b26fbfc94d682b751490fec90ad9132af5decad8cb2d62b
SHA1 hash: db57c2c6011a6a9eac2222c1febaa175f31aea1c
MD5 hash: 19f43793fc5cf588b032505d252ed4ba
humanhash: floor-romeo-leopard-cold
File name:arm6
Download: download sample
Signature Mirai
File size:131'448 bytes
First seen:2026-09-22 04:46:19 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:Bi3fie4WilcU5AlqTxeh00aJrgfbfGG4RfwHQhxqOHcpR:PeecU5uqTshNalgfbEfqQXiR
TLSH T1D7D35B56BC818A11C5C21ABAFE2E524D331317BCE3EE72179E105F34638B96B0E3B655
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 gafgyt mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 656e539abc54f262eabb6d091df50f9bec71a55905421f0a3fc2eb451aa0409e
File size (compressed) :59'528 bytes
File size (de-compressed) :131'448 bytes
Format:linux/arm
Packed file: 656e539abc54f262eabb6d091df50f9bec71a55905421f0a3fc2eb451aa0409e

Intelligence


File Origin
# of uploads :
1
# of downloads :
68
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Kills processes
Launching a process
Runs as daemon
Changes access rights for a written file
Opens a port
Receives data from a server
Changes the time when the file was created, accessed, or modified
Connection attempt
Creating a file
Creates or modifies symbolic links
Sets a written file as executable
Sends data to a server
Writes files to system subdirectory
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Performs a bruteforce attack in the network
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Deleting of the original file
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
obfuscated rust
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
172
Number of processes launched:
136
Processes remaning?
false
Remote TCP ports scanned:
23
Behaviour
Persistence
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-09-22T02:32:00Z UTC
Last seen:
2026-09-22T03:03:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=dfe8673b-1800-0000-db7c-b00ea70b0000 pid=2983 /usr/bin/sudo guuid=1db5653d-1800-0000-db7c-b00eac0b0000 pid=2988 /tmp/sample.bin guuid=dfe8673b-1800-0000-db7c-b00ea70b0000 pid=2983->guuid=1db5653d-1800-0000-db7c-b00eac0b0000 pid=2988 execve
Threat name:
Linux.Backdoor.Gafgyt
Status:
Malicious
First seen:
2026-09-22 04:46:34 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 36 (33.33%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion discovery execution persistence privilege_escalation
Behaviour
Reads runtime system information
System Network Configuration Discovery
Creates a desktop entry file
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Modifies systemd
Deletes itself
Modifies Watchdog functionality
Modifies the /etc/hosts DNS resolution file
Contacts a large (14887) amount of remote hosts
Creates a large amount of network flows
Please note that we are no longer able to provide a coverage score for Virus Total.

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:ELF_IoT_Persistence_Hunt
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:test_rule_vldslv
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:virustotal
Author:Tracel
Rule name:Web_Generic_Binary_URL_Download
Author:Serhii Kocherhan
Description:Detects files containing HTTP or HTTPS links pointing directly to .bin payload extensions.

File information


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

Web download

Mirai

elf 3b33bd887a1de3f0935c10d159dca99e123dc251a3074c2caf5085ed21334ee2

(this sample)

  
Delivery method
Distributed via web download

Comments