MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31fd267b8f0f047bd82e3cd6a3855e3fe8440fcc4abe1707c6fe72ec975150db. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31fd267b8f0f047bd82e3cd6a3855e3fe8440fcc4abe1707c6fe72ec975150db
SHA3-384 hash: dc641476dc9a4b52595acc07e284701344afa50fcb5b533e26147d64cf9ce6bf8bc340f5b369af1b5e92f9df89459f93
SHA1 hash: 7d134cd1c8ad251fd9de18fd63b1cdbcf17c3ea8
MD5 hash: 4d09b7b3f04156dc5893a10df3cbd6a5
humanhash: jupiter-hawaii-minnesota-venus
File name:i686
Download: download sample
Signature Mirai
Create hunting rule
File size:43'936 bytes
First seen:2025-12-04 00:10:45 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:UkDS7bNYNDlhjpL5X3r0O5boLHgmE89Dzw/p0Lkb0PCyIunbcuyD7UHQRjw:UkDcbQhB5X7l9+gmTkOLY01nouy8Hyc
TLSH T19913018FE0B91611DDAC83711E6E7A76082DF21DA140C1EEEFE470E9952BF6171483D4
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) :43'936 bytes
File size (de-compressed) :99'700 bytes
Format:linux/i386
Unpacked file: 04c83d0aa0ba32540f08765138177cca0c6a70bd33eb93b30e735fe220501e15

Intelligence

File Origin
# of uploads :
1
# of downloads :
23
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/feac79ce-49ca-4de4-991a-ca06423673c0/
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Changes access rights for a written file
Sets a written file as executable
Runs as daemon
Receives data from a server
Creating a file
Opens a port
Changes access rights for a file
Deleting a recently created file
Sends data to a server
Launching a process
Removes directories
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6930d1a5bba50eaf04200a2a/reports/133af9c5-3585-4948-aa31-630a23fbddf7/overview
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a1edfb13-9bf3-4e6d-a43f-b6e789f4620b
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1825972
Signature
Deletes system log files
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1825972 Sample: i686.elf Startdate: 04/12/2025 Architecture: LINUX Score: 68 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Sample is packed with UPX 2->47 9 i686.elf 2->9         started        12 python3.8 dpkg 2->12         started        process3 file4 41 /usr/local/bin/infinitd, ELF 9->41 dropped 14 i686.elf 9->14         started        16 i686.elf 9->16         started        18 i686.elf sh 9->18         started        20 3 other processes 9->20 process5 process6 22 i686.elf 14->22         started        25 i686.elf 16->25         started        27 i686.elf 16->27         started        29 sh 18->29         started        31 i686.elf 20->31         started        33 sh 20->33         started        signatures7 49 Manipulation of devices in /dev 22->49 51 Deletes system log files 22->51 35 i686.elf 25->35         started        37 i686.elf 31->37         started        process8 process9 39 i686.elf 35->39         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/31fd267b8f0f047bd82e3cd6a3855e3fe8440fcc4abe1707c6fe72ec975150db
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/31fd267b8f0f047bd82e3cd6a3855e3fe8440fcc4abe1707c6fe72ec975150db/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-04 00:11:27 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gh6sm64pb4chxwbohtlkhbk6h7ueid6mjk7bob6g7zzozf2rkdnq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux persistence privilege_escalation upx
Link:
https://tria.ge/reports/251204-alwmnaak7s/
Behaviour
Reads runtime system information
UPX packed file
Enumerates running processes
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Deletes Audit logs
Deletes journal logs
Deletes system logs
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
teamc2.duckdns.org
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 31fd267b8f0f047bd82e3cd6a3855e3fe8440fcc4abe1707c6fe72ec975150db

(this sample)

Mirai

elf 04c83d0aa0ba32540f08765138177cca0c6a70bd33eb93b30e735fe220501e15

  
URLhaus
https://urlhaus.abuse.ch/url/3722798/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 04c83d0aa0ba32540f08765138177cca0c6a70bd33eb93b30e735fe220501e15
  
Dropping
MD5 c5abf9e5261d01ceeade4ad27c8ea33a
  
URLhaus
https://urlhaus.abuse.ch/url/3724368/

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