MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4a358851f870e634c6c7c00a46b1ecb28f3c96a1d3d76d263c073427b18116e. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4a358851f870e634c6c7c00a46b1ecb28f3c96a1d3d76d263c073427b18116e
SHA3-384 hash: 34f83b36291f64d4b1fb732601581fb021182fc4e6d008ebfc839e6f7453f74aa620e5c9f72481956c521490574c2f7b
SHA1 hash: ecfb5d35e65f441d3774736c206acc4d01b56a1b
MD5 hash: 3a225fee880e54b2696da8f22da0b105
humanhash: enemy-fish-yankee-missouri
File name:splarm7
Download: download sample
Signature Mirai
Create hunting rule
File size:105'120 bytes
First seen:2025-12-21 19:29:52 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:UCGY1QTVbVpT9eQSnISBJyCpAvF7ExxSqT2l:UCT1Q3eQ+ISBJyC6vF7uxG
TLSH T1AEA30886FD819B21D5D522BEFE1E518D331357B8E3EE7212DD206B25378A82B0E7B501
telfhash t1cfd017f7df7a99dd96c1e0c9128c9a9aabfdb2976a183043421d1a5e44421a0b51e806
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
41
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sends data to a server
Receives data from a server
Creating a file
Runs as daemon
Opens a port
DNS request
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
rust
Link:
https://www.filescan.io/uploads/69484af2a7163552ba03700d/reports/e385bb06-fd7c-4ee6-8900-550536faa89f/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-21T15:03:00Z UTC
Last seen:
2025-12-21T18:43:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b4a358851f870e634c6c7c00a46b1ecb28f3c96a1d3d76d263c073427b18116e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/a8be7b17-51f9-49ab-8257-37623538982b
Behavior Graph:
Download SVG
%3 guuid=340cf46d-1d00-0000-e79e-6986230c0000 pid=3107 /usr/bin/sudo guuid=ef20ba6f-1d00-0000-e79e-6986280c0000 pid=3112 /tmp/sample.bin guuid=340cf46d-1d00-0000-e79e-6986230c0000 pid=3107->guuid=ef20ba6f-1d00-0000-e79e-6986280c0000 pid=3112 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/598d1b29-b2e0-42fb-a93c-cbb7ecb12f55
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1837206
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1837206 Sample: splarm7.elf Startdate: 21/12/2025 Architecture: LINUX Score: 52 18 103.11.161.229, 23 OCEANIC-BROADBAND-AS-APOceanicBroadbandSolutionsPtyLtd Australia 2->18 20 103.11.161.238, 23 OCEANIC-BROADBAND-AS-APOceanicBroadbandSolutionsPtyLtd Australia 2->20 22 100 other IPs or domains 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Connects to many IPs within the same subnet mask (likely port scanning) 2->26 8 splarm7.elf 2->8         started        signatures3 process4 process5 10 splarm7.elf 8->10         started        process6 12 splarm7.elf 10->12         started        14 splarm7.elf 10->14         started        16 splarm7.elf 10->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b4a358851f870e634c6c7c00a46b1ecb28f3c96a1d3d76d263c073427b18116e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4a358851f870e634c6c7c00a46b1ecb28f3c96a1d3d76d263c073427b18116e/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-21 19:31:40 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wsrvrbi7q4hggtdmpqaki2y6zmuphslkdu6xnutdybzue6yycfxa._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
credential_access discovery
Link:
https://tria.ge/reports/251221-x8d3fsbm6v/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Reads process memory
Creates a large amount of network flows
Enumerates active TCP sockets
Enumerates running processes
Renames itself
Contacts a large (13301) amount of remote hosts
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/95b215ae-1644-43dd-a44d-0f0bd81b957f
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_Threat_8299c877
Create hunting rule
Author:Elastic Security
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 b4a358851f870e634c6c7c00a46b1ecb28f3c96a1d3d76d263c073427b18116e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739139/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739155/

Comments