MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a9a5f5f094ff1f318b90b6ad1ca0eb3eca9213fbd9a17f655804bbf2c5bf3a4. 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: 8a9a5f5f094ff1f318b90b6ad1ca0eb3eca9213fbd9a17f655804bbf2c5bf3a4
SHA3-384 hash: c377d6f695a755cc13b946a5a01ca4f2a797923bc677eed14b40263fa6e6f61e3122423b644f6055abdb292f267c2b42
SHA1 hash: 13be579332446071439bad7c9e136106dbaa5fd3
MD5 hash: 2b052e6db02028f991abb639867f8698
humanhash: glucose-iowa-nitrogen-alabama
File name:renji.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:114'344 bytes
First seen:2025-09-17 02:53:43 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:O5xnJyCSgCqb+j5rod+jekcK+Pr2wIq3FIUOcTUpebJ7t4euaB6ZzT:6JdrbsrLcK+Pr2wIaIKdlu/T
TLSH T106B3D80E6E218F7DF768C63057B74F21A35933D626E1D685E2ACD9041F6134E281FBA8
telfhash t10d21af6c497813f097754d9d1bedffb6e5a070de06362c338e01e96daa6c9425d00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 b4020cab0a431addf1854ce352f4e87580db3762ddbd5062090ed874c8c3480a
File size (compressed) :43'164 bytes
File size (de-compressed) :114'388 bytes
Format:linux/mips
Packed file: b4020cab0a431addf1854ce352f4e87580db3762ddbd5062090ed874c8c3480a

Intelligence

File Origin
# of uploads :
1
# of downloads :
78
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10056451-0
Create hunting rule

Unix.Trojan.Mirai-10056463-0
Create hunting rule

Unix.Trojan.Mirai-10057788-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
DNS request
Changes access rights for a file
Runs as daemon
Changes access rights for a written file
Removes directories
Removes directories from a temporary directory
Sends data to a server
Connection attempt
Deleting a recently created file
Substitutes an application name
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
lolbin masquerade obfuscated remote threat
Link:
https://www.filescan.io/uploads/68ca23280d1238ff0aad6e44/reports/8be2cf4c-8555-4872-b9ab-c65dceeec391/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-09-17T01:08:00Z UTC
Last seen:
2025-09-17T01:08:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8a9a5f5f094ff1f318b90b6ad1ca0eb3eca9213fbd9a17f655804bbf2c5bf3a4/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/49fa0643-0a03-4b4a-874a-afa6b6beb53b
Behavior Graph:
Download SVG
%3 guuid=37aae66f-1a00-0000-3a16-65355e090000 pid=2398 /usr/bin/sudo guuid=2d8d5272-1a00-0000-3a16-653565090000 pid=2405 /tmp/sample.bin guuid=37aae66f-1a00-0000-3a16-65355e090000 pid=2398->guuid=2d8d5272-1a00-0000-3a16-653565090000 pid=2405 execve
Gathering data
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1778951
Signature
Antivirus / Scanner detection for submitted sample
Deletes system log files
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1778951 Sample: renji.mips.elf Startdate: 17/09/2025 Architecture: LINUX Score: 64 25 169.254.169.254, 80 USDOSUS Reserved 2->25 27 wrxcnc.com 196.251.84.55, 39486, 39490, 39492 SONIC-WirelessZA Seychelles 2->27 29 daisy.ubuntu.com 2->29 31 Antivirus / Scanner detection for submitted sample 2->31 33 Multi AV Scanner detection for submitted file 2->33 10 renji.mips.elf 2->10         started        12 python3.8 dpkg 2->12         started        signatures3 process4 process5 14 renji.mips.elf 10->14         started        process6 16 renji.mips.elf 14->16         started        process7 18 renji.mips.elf 16->18         started        process8 20 renji.mips.elf 18->20         started        23 renji.mips.elf 18->23         started        signatures9 35 Manipulation of devices in /dev 20->35 37 Deletes system log files 20->37
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8a9a5f5f094ff1f318b90b6ad1ca0eb3eca9213fbd9a17f655804bbf2c5bf3a4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a9a5f5f094ff1f318b90b6ad1ca0eb3eca9213fbd9a17f655804bbf2c5bf3a4/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-17 02:55:49 UTC
File Type:
ELF32 Big (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rknf6xyjj7y7ggfzbnvndsqowpwksij7xwnbp5svqbf36lc36osa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery
Link:
https://tria.ge/reports/250917-devnkadr4s/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Deletes log files
Enumerates running processes
Deletes Audit logs
Deletes system logs
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b7104162-6897-4810-89ff-c26f8e97d1ca
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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

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

Web download

Mirai

elf b4020cab0a431addf1854ce352f4e87580db3762ddbd5062090ed874c8c3480a

Mirai

elf 8a9a5f5f094ff1f318b90b6ad1ca0eb3eca9213fbd9a17f655804bbf2c5bf3a4

(this sample)

  
Dropped by
SHA256 b4020cab0a431addf1854ce352f4e87580db3762ddbd5062090ed874c8c3480a
  
URLhaus
https://urlhaus.abuse.ch/url/3624327/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3624337/
  
URLhaus
https://urlhaus.abuse.ch/url/3624324/
  
Dropped by
MD5 cf98089f3623685506ca765040a0400b
  
URLhaus
https://urlhaus.abuse.ch/url/3624286/

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