MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff1b5b181b04d3b18b5522a827e0f97727e140a8c3ff7853e4acbc61f289fb31. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ff1b5b181b04d3b18b5522a827e0f97727e140a8c3ff7853e4acbc61f289fb31
SHA3-384 hash: 543bf438154d7505be54b65925e2dde82e7095668705fa0c9431b1076c6efa89a65b79f8ae20ce605b0f4ccf5cc3af7b
SHA1 hash: 343847b51f2c18d8a56a8122a3d5cc155b18f27a
MD5 hash: 7db956e780b4e93ee6d3efbbcf232fa2
humanhash: ten-butter-echo-ceiling
File name:windy.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:41'304 bytes
First seen:2025-11-23 18:14:35 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:HpOvrpTtgjULjsPz4/LbVtFx8j61A2MR8+ed31Icz7VMl6FFnbcuyD7UHQRjC:+pTtBUL4/3rP1Asx1JRMl6Fnouy8Hy2
TLSH T14D03E1F5D8E9EDA4CC3EE43405AF3F4B8424C6DF95D9E0A247C4915B2A05F2AA80C757
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) :41'304 bytes
File size (de-compressed) :87'316 bytes
Format:linux/i386
Unpacked file: a28d5d10f715a7451b043efd8519ebe24b53dc4e10ad85ade86a71de67a342f6

Intelligence

File Origin
# of uploads :
1
# of downloads :
34
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Receives data from a server
Opens a port
Sends data to a server
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/69234f535d3feebe12d83e9f/reports/041a45d9-9a4e-4e7f-a9bb-8cf44cc90327/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
46
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/ff1b5b181b04d3b18b5522a827e0f97727e140a8c3ff7853e4acbc61f289fb31
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-23T14:44:00Z UTC
Last seen:
2025-11-23T15:04:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/ff1b5b181b04d3b18b5522a827e0f97727e140a8c3ff7853e4acbc61f289fb31/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/96e85daa-f461-4851-a252-a44c9708f2fc
Behavior Graph:
Download SVG
%3 guuid=2259305d-1a00-0000-6118-aab97c0a0000 pid=2684 /usr/bin/sudo guuid=967e6c5f-1a00-0000-6118-aab9820a0000 pid=2690 /tmp/sample.bin net guuid=2259305d-1a00-0000-6118-aab97c0a0000 pid=2684->guuid=967e6c5f-1a00-0000-6118-aab9820a0000 pid=2690 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=967e6c5f-1a00-0000-6118-aab9820a0000 pid=2690->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=c9f40960-1a00-0000-6118-aab9840a0000 pid=2692 /tmp/sample.bin guuid=967e6c5f-1a00-0000-6118-aab9820a0000 pid=2690->guuid=c9f40960-1a00-0000-6118-aab9840a0000 pid=2692 clone guuid=f0560e8c-1b00-0000-6118-aab95b0c0000 pid=3163 /tmp/sample.bin guuid=967e6c5f-1a00-0000-6118-aab9820a0000 pid=2690->guuid=f0560e8c-1b00-0000-6118-aab95b0c0000 pid=3163 clone guuid=01b01b8c-1b00-0000-6118-aab95c0c0000 pid=3164 /tmp/sample.bin net send-data zombie guuid=967e6c5f-1a00-0000-6118-aab9820a0000 pid=2690->guuid=01b01b8c-1b00-0000-6118-aab95c0c0000 pid=3164 clone guuid=34dc0e60-1a00-0000-6118-aab9860a0000 pid=2694 /tmp/sample.bin guuid=c9f40960-1a00-0000-6118-aab9840a0000 pid=2692->guuid=34dc0e60-1a00-0000-6118-aab9860a0000 pid=2694 clone guuid=97601260-1a00-0000-6118-aab9870a0000 pid=2695 /tmp/sample.bin dns net send-data zombie guuid=c9f40960-1a00-0000-6118-aab9840a0000 pid=2692->guuid=97601260-1a00-0000-6118-aab9870a0000 pid=2695 clone guuid=97601260-1a00-0000-6118-aab9870a0000 pid=2695->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 180B 7f1881f5-f89d-51d2-9796-cf1f45470b92 dot.cbzp.fun:14135 guuid=97601260-1a00-0000-6118-aab9870a0000 pid=2695->7f1881f5-f89d-51d2-9796-cf1f45470b92 send: 4B guuid=01b01b8c-1b00-0000-6118-aab95c0c0000 pid=3164->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 930B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=01b01b8c-1b00-0000-6118-aab95c0c0000 pid=3164->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/94959650-5ea3-4dcc-9e84-860b7466653c
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1819626
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1819626 Sample: windy.i686.elf Startdate: 23/11/2025 Architecture: LINUX Score: 60 22 169.254.169.254, 80 USDOSUS Reserved 2->22 24 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->24 26 2 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Sample is packed with UPX 2->32 8 windy.i686.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 process4 process5 12 windy.i686.elf 8->12         started        14 windy.i686.elf 8->14         started        16 windy.i686.elf 8->16         started        process6 18 windy.i686.elf 12->18         started        20 windy.i686.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ff1b5b181b04d3b18b5522a827e0f97727e140a8c3ff7853e4acbc61f289fb31
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ff1b5b181b04d3b18b5522a827e0f97727e140a8c3ff7853e4acbc61f289fb31/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-23 18:15:50 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=74nvwga3atj3dc2vekucpyhzo4t6cqfiyp7xqu7evs6gd4uj7myq._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/251123-wv7xyavmbm/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/aef8bd15-fbce-4f97-8076-f505e55b519a
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: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: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 ff1b5b181b04d3b18b5522a827e0f97727e140a8c3ff7853e4acbc61f289fb31

(this sample)

Mirai

elf a28d5d10f715a7451b043efd8519ebe24b53dc4e10ad85ade86a71de67a342f6

  
URLhaus
https://urlhaus.abuse.ch/url/3715273/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 a28d5d10f715a7451b043efd8519ebe24b53dc4e10ad85ade86a71de67a342f6
  
Dropping
MD5 1444a3c7340f8f0d74710247c97fa4ca

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