MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 88aa903566165027d55bf4425b92779764419f626dbcfeef00c6646e9fbcccd2. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 88aa903566165027d55bf4425b92779764419f626dbcfeef00c6646e9fbcccd2
SHA3-384 hash: 550d60662d9c1e25116c1e9c2b1107affd47ddb451f4f14b775af1a361ccac52795c23b97c23a2cdf538f59568885a61
SHA1 hash: 1fa8db656b31610d0f3e52e344bf3e45b999e149
MD5 hash: 272e2e481765c01cbd7d1b3cac40e82a
humanhash: magnesium-bakerloo-blue-washington
File name:kt2
Download: download sample
Signature Mirai
Create hunting rule
File size:115'680 bytes
First seen:2025-05-13 17:17:13 UTC
Last seen:2025-05-13 18:32:03 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:fJNCDfJ7W23Gsv90nvxRjl3UmkOOatAflzTaf8cwhNg3Oq6lOAg2elVKGasK+IxU:f8i23Gsv90nvxRjl3UmkOOatAflzTaf5
TLSH T1F0B39A3D7E22BF6EE7B8823107F62FB0835650D376A2D280D1BDCA544EB425C589E794
telfhash t191014f54143817f093848dde6bddff35a4a144cf9a651f3bcd50d9a6ab61e869d00c2c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
105
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-61.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30419.LX.M0Z.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Dropper.Mirai-7136070-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68237f624a59e5a2ce04414dlinux22vpnfull_triage
Tags:
mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Connection attempt
Opens a port
Sends data to a server
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
gcc
Link:
https://www.filescan.io/uploads/68237ece8bd61140fb6e6dda/reports/8cd89c49-1d39-4be6-a146-55b876ac28f5/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
1
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/88aa903566165027d55bf4425b92779764419f626dbcfeef00c6646e9fbcccd2
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9c9b97d8-143a-40a6-987d-36f61c8ec669
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1689212
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1689212 Sample: kt2.elf Startdate: 13/05/2025 Architecture: LINUX Score: 76 19 109.202.202.202, 80 INIT7CH Switzerland 2->19 21 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->21 23 3 other IPs or domains 2->23 25 Malicious sample detected (through community Yara rule) 2->25 27 Antivirus / Scanner detection for submitted sample 2->27 29 Multi AV Scanner detection for submitted file 2->29 31 Yara detected Mirai 2->31 8 kt2.elf 2->8         started        11 dash rm 2->11         started        13 dash rm 2->13         started        signatures3 process4 signatures5 33 Sample deletes itself 8->33 15 kt2.elf 8->15         started        process6 process7 17 kt2.elf 15->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/88aa903566165027d55bf4425b92779764419f626dbcfeef00c6646e9fbcccd2
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/88aa903566165027d55bf4425b92779764419f626dbcfeef00c6646e9fbcccd2/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-05-13 17:18:13 UTC
File Type:
ELF32 Big (Exe)
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rcvjanlgczicpvk36rbfxetxs5sedh3cnw6p53yayzsg5h54ztja._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery
Link:
https://tria.ge/reports/250513-vvbztsem9x/
Behaviour
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Deletes itself
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
botnet mirai Unix.Trojan.Mirai-7100807-0
YARA:
Mirai_Botnet_Malware
Link:
https://app.threat.zone/submission/6c8e2ac1-aa3d-4a57-a7e5-291376c9ec81
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/88aa903566165027d55bf4425b92779764419f626dbcfeef00c6646e9fbcccd2

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_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 88aa903566165027d55bf4425b92779764419f626dbcfeef00c6646e9fbcccd2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3532687/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3531150/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments