MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 146d381367991ba2663f06bfdde5d8a9ae3c771fb489c3cabf18441443a24269. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 146d381367991ba2663f06bfdde5d8a9ae3c771fb489c3cabf18441443a24269
SHA3-384 hash: 84ca28199bddd7c861b13559af1139e3737685f6cf8cd072fbcd5f9cfa5bd201767c98c248ce999989f5963a768e4d98
SHA1 hash: ec7cbf6700b8f411401a57efff622be7b475360a
MD5 hash: 0788d3602c7b25ad386f3d98f33fb652
humanhash: beryllium-oven-solar-eleven
File name:Polar.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:56'384 bytes
First seen:2025-11-18 22:35:46 UTC
Last seen:2025-11-20 15:45:07 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:D7mC16UumUoeJfC4BoW6VhdNzMjwGsN3BkEJcqjOo/9LbnbcuyD7UtQRj86:D776FJoIa7Dywz3OEJb/9Lbnouy8tyA6
TLSH T13A4302D791AA8254D464D13A4CAB77057D90AAAC3DA2CDC3AFB5B03B8C20F1F071D74A
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) :56'384 bytes
File size (de-compressed) :136'396 bytes
Format:linux/i386
Unpacked file: 001d83dbe909774b8f3a7a1d358443584cd1a877a02a78bfe4b4ab097f211b54

Intelligence

File Origin
# of uploads :
2
# of downloads :
50
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Opens a port
DNS request
Connection attempt
Sends data to a server
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/691cf4e6e68d9822a37c69e9/reports/b42d77bc-fe01-4814-957b-f85eedd26f04/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/146d381367991ba2663f06bfdde5d8a9ae3c771fb489c3cabf18441443a24269
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-18T19:40:00Z UTC
Last seen:
2025-11-20T10:18:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw
Link:
https://opentip.kaspersky.com/146d381367991ba2663f06bfdde5d8a9ae3c771fb489c3cabf18441443a24269/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/0b3bbf73-b8e2-499f-877e-87a43740baa2
Behavior Graph:
Download SVG
%3 guuid=c3cd0f5f-1900-0000-bad9-f236c20a0000 pid=2754 /usr/bin/sudo guuid=624a6961-1900-0000-bad9-f236c50a0000 pid=2757 /tmp/sample.bin net guuid=c3cd0f5f-1900-0000-bad9-f236c20a0000 pid=2754->guuid=624a6961-1900-0000-bad9-f236c50a0000 pid=2757 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=624a6961-1900-0000-bad9-f236c50a0000 pid=2757->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=f3776c62-1900-0000-bad9-f236c60a0000 pid=2758 /tmp/sample.bin guuid=624a6961-1900-0000-bad9-f236c50a0000 pid=2757->guuid=f3776c62-1900-0000-bad9-f236c60a0000 pid=2758 clone guuid=73f6e08e-1a00-0000-bad9-f236b90c0000 pid=3257 /tmp/sample.bin guuid=624a6961-1900-0000-bad9-f236c50a0000 pid=2757->guuid=73f6e08e-1a00-0000-bad9-f236b90c0000 pid=3257 clone guuid=d860e78e-1a00-0000-bad9-f236ba0c0000 pid=3258 /tmp/sample.bin net send-data zombie guuid=624a6961-1900-0000-bad9-f236c50a0000 pid=2757->guuid=d860e78e-1a00-0000-bad9-f236ba0c0000 pid=3258 clone guuid=8a107962-1900-0000-bad9-f236c70a0000 pid=2759 /tmp/sample.bin guuid=f3776c62-1900-0000-bad9-f236c60a0000 pid=2758->guuid=8a107962-1900-0000-bad9-f236c70a0000 pid=2759 clone guuid=31d38062-1900-0000-bad9-f236c80a0000 pid=2760 /tmp/sample.bin dns net send-data zombie guuid=f3776c62-1900-0000-bad9-f236c60a0000 pid=2758->guuid=31d38062-1900-0000-bad9-f236c80a0000 pid=2760 clone guuid=31d38062-1900-0000-bad9-f236c80a0000 pid=2760->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 246B 835e2637-8ea8-5733-9bcd-e417a3d56db3 lolzzmortex.duckdns.org:69 guuid=31d38062-1900-0000-bad9-f236c80a0000 pid=2760->835e2637-8ea8-5733-9bcd-e417a3d56db3 send: 2B guuid=d860e78e-1a00-0000-bad9-f236ba0c0000 pid=3258->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1230B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=d860e78e-1a00-0000-bad9-f236ba0c0000 pid=3258->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a9a24f3f-3272-46a1-b9d0-0b5df217d903
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1816567
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1816567 Sample: Polar.x86.elf Startdate: 18/11/2025 Architecture: LINUX Score: 64 26 lolzzmortex.duckdns.org 2->26 28 169.254.169.254, 80 USDOSUS Reserved 2->28 30 4 other IPs or domains 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Sample is packed with UPX 2->36 8 Polar.x86.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        14 python3.8 dpkg 2->14         started        signatures3 38 Uses dynamic DNS services 26->38 process4 process5 16 Polar.x86.elf 8->16         started        18 Polar.x86.elf 8->18         started        20 Polar.x86.elf 8->20         started        process6 22 Polar.x86.elf 16->22         started        24 Polar.x86.elf 16->24         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/146d381367991ba2663f06bfdde5d8a9ae3c771fb489c3cabf18441443a24269
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/146d381367991ba2663f06bfdde5d8a9ae3c771fb489c3cabf18441443a24269/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/146d381367991ba2663f06bfdde5d8a9ae3c771fb489c3cabf18441443a24269
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 22:36:24 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=crwtqe3hten2ezr7a2753zoyvgxdy5y7wse4hsv7dbcbiq5cijuq._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/251118-2jed5scn5v/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
lolzzmortex.duckdns.org
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/ffb500fd-cb02-4bed-9ba2-af15eed52972
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/146d381367991ba2663f06bfdde5d8a9ae3c771fb489c3cabf18441443a24269

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: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

sh 7f55eb9ac447608017451a30425c2a7ce85a51fa5cf436b16c215cbeec25d909

Mirai

elf 146d381367991ba2663f06bfdde5d8a9ae3c771fb489c3cabf18441443a24269

(this sample)

Mirai

elf 001d83dbe909774b8f3a7a1d358443584cd1a877a02a78bfe4b4ab097f211b54

  
URLhaus
https://urlhaus.abuse.ch/url/3711502/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 001d83dbe909774b8f3a7a1d358443584cd1a877a02a78bfe4b4ab097f211b54
  
Dropping
MD5 c4d5a82dea82c2e1a8a78f62a7d204ae
  
URLhaus
https://urlhaus.abuse.ch/url/3711445/
  
Dropped by
SHA256 7f55eb9ac447608017451a30425c2a7ce85a51fa5cf436b16c215cbeec25d909
  
Dropped by
MD5 a6dd49e8a65beaac72703a41f5696f98
  
URLhaus
https://urlhaus.abuse.ch/url/3711513/
  
URLhaus
https://urlhaus.abuse.ch/url/3711530/
  
URLhaus
https://urlhaus.abuse.ch/url/3712751/

Comments