MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf
SHA3-384 hash: 423fd19fe5c9387a759a4b8688eaf08b2b286bf69ad6882140883a8484ddee4fddfc34503ab3ef1a8d62150f11f1ea96
SHA1 hash: a9ba5d50fa07272a12531388984c5921cd1f139a
MD5 hash: 0bf5b892efb0c2b6ed982bec356174d8
humanhash: speaker-berlin-oregon-oranges
File name:Polar.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:73'328 bytes
First seen:2025-11-18 22:25:09 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:WcyrONsXDlCr/2MMRfyZtlXa+Y3axDL7/mij21s/RZ3nRt:37MDQruMKelK+YwDHur1a97
TLSH T187630295E87DF953C00ED8BAD1D62BA07AFC70E47259A29CD35C89ECF01F50A494E8C4
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
File size (compressed) :73'328 bytes
File size (de-compressed) :233'704 bytes
Format:linux/mipsel
Unpacked file: 5b2b2b99dee41feefb96a860402312af2c7590605ccbab4944028822defdb977

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-20.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Opens a port
Sends data to a server
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/691cf25be68d9822a37c6724/reports/da9f179a-cdb5-4c5c-a3b5-343ca60e1b6c/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
UPX
Botnet:
unknown
Number of open files:
7
Number of processes launched:
2
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8dc6fafc-0836-41d3-9577-69ce841d37f9
Behavior Graph:
Download SVG
%3 guuid=c2792229-1a00-0000-9aea-f19b56080000 pid=2134 /usr/bin/sudo guuid=7f4ebf2a-1a00-0000-9aea-f19b5d080000 pid=2141 /tmp/sample.bin guuid=c2792229-1a00-0000-9aea-f19b56080000 pid=2134->guuid=7f4ebf2a-1a00-0000-9aea-f19b5d080000 pid=2141 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0b903f90-0af5-4777-a2af-4065811eea63
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1816558
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1816558 Sample: Polar.mpsl.elf Startdate: 18/11/2025 Architecture: LINUX Score: 80 22 lolzzmortex.duckdns.org 2->22 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 2 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Multi AV Scanner detection for submitted file 2->32 36 2 other signatures 2->36 8 Polar.mpsl.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Uses dynamic DNS services 22->34 process4 process5 12 Polar.mpsl.elf 8->12         started        14 Polar.mpsl.elf 8->14         started        16 Polar.mpsl.elf 8->16         started        process6 18 Polar.mpsl.elf 12->18         started        20 Polar.mpsl.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 22:25:32 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 36 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kxh7ityvlerj5xfbdb5n4bggc6lnszktkv52swl65gdor6vsvc7q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/251118-2b7qqabv5d/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/652a5e99-86bc-4721-b954-a93e2aa21569
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 55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf

(this sample)

Mirai

elf 5b2b2b99dee41feefb96a860402312af2c7590605ccbab4944028822defdb977

  
URLhaus
https://urlhaus.abuse.ch/url/3711525/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 5b2b2b99dee41feefb96a860402312af2c7590605ccbab4944028822defdb977
  
Dropping
MD5 4e6c3fab3b3234a86aacfb9e58556a4e
  
URLhaus
https://urlhaus.abuse.ch/url/3711526/

Comments