MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e03fac4a0a16ca334ad6622a466a407febf8788c301cc81fc6a069a3eb071bf. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4e03fac4a0a16ca334ad6622a466a407febf8788c301cc81fc6a069a3eb071bf
SHA3-384 hash: c2e4141d15fe1c0b279159159aaf9971cf92b5492868c9ab6219b7a29dcafb8bbae6a766ac0015ce6f1feb99626ed048
SHA1 hash: 3d2607d13690dc65ad1dcf789eb0961648cad53c
MD5 hash: 03f6a765f7bb551e266d9642eef079e1
humanhash: rugby-romeo-september-florida
File name:db0fa4b8db0333367e9bda3ab68b8042.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:104'776 bytes
First seen:2025-08-20 18:23:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:RNpDUyaH1uaSF9LBenKjRoH1CoHnEfGgTO6W1wd3vdto0dhu/hy5WeN:VU7VuaSnVenK0YoHnapd3vdto0dhupxk
TLSH T1C8A3840D7E258F7DFBAD863447B78B259248339A3AE1C684D05CE9011EB024E745FFA9
telfhash t16a017118843802f487851ded7bedff76d49140ef5a155e378f00f95ab6a16428e00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 e205d74629973041cf1dc777f15c6fcb481fd30cbe6ce4ba1c9f549c4cd38b86
File size (compressed) :35'220 bytes
File size (de-compressed) :104'452 bytes
Format:linux/mips
Packed file: e205d74629973041cf1dc777f15c6fcb481fd30cbe6ce4ba1c9f549c4cd38b86

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29524.LC.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135870-0
Create hunting rule

Unix.Dropper.Mirai-7135906-0
Create hunting rule

Unix.Dropper.Mirai-7135966-0
Create hunting rule

Unix.Dropper.Mirai-7135979-0
Create hunting rule

Unix.Dropper.Mirai-7355719-0
Create hunting rule

Unix.Trojan.Mirai-9935718-0
Create hunting rule

Unix.Dropper.Mirai-9977145-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Runs as daemon
Opens a port
Sends data to a server
Connection attempt
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade mirai obfuscated obfuscated threat
Link:
https://www.filescan.io/uploads/68a612e5419c816a6e8dda9a/reports/06670906-a7e4-496e-ab09-3f08d53fd1cc/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/0559efa3-c6e8-4e36-86a6-e8300751d064
Behavior Graph:
Download SVG
%3 guuid=4da63e64-1900-0000-7e67-a7aa8f0f0000 pid=3983 /usr/bin/sudo guuid=2f336666-1900-0000-7e67-a7aa980f0000 pid=3992 /tmp/sample.bin guuid=4da63e64-1900-0000-7e67-a7aa8f0f0000 pid=3983->guuid=2f336666-1900-0000-7e67-a7aa980f0000 pid=3992 execve
Gathering data
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1761347
Signature
Antivirus / Scanner detection for submitted sample
Detected Mirai
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Suricata IDS alerts for network traffic
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4e03fac4a0a16ca334ad6622a466a407febf8788c301cc81fc6a069a3eb071bf
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4e03fac4a0a16ca334ad6622a466a407febf8788c301cc81fc6a069a3eb071bf/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-20 18:24:37 UTC
File Type:
ELF32 Big (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jyb7vrfaufwkgnfnmyrkizvea77l7b4iyma4zap4nidjupvqog7q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable defense_evasion discovery
Link:
https://tria.ge/reports/250820-w2b4vavyc1/
Behaviour
System Network Configuration Discovery
Changes its process name
Writes file to system bin folder
Modifies Watchdog functionality
Malware Config
C2 Extraction:
cnc.9257.org
bot.9257.org
Verdict:
Unknown
Tags:
botnet mirai
YARA:
MAL_ELF_LNX_Mirai_Oct10_1 MAL_ELF_LNX_Mirai_Oct10_2
Link:
https://app.threat.zone/submission/1b58b7d3-4488-494e-8d95-caccde7edd9a
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/4e03fac4a0a16ca334ad6622a466a407febf8788c301cc81fc6a069a3eb071bf

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:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:MAL_ELF_LNX_Mirai_Oct10_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_1_RID2F39
Create hunting rule
Author:Florian Roth
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_2_RID2F3A
Create hunting rule
Author:Florian Roth
Description:Detects ELF malware Mirai related
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 e205d74629973041cf1dc777f15c6fcb481fd30cbe6ce4ba1c9f549c4cd38b86

Mirai

elf 4e03fac4a0a16ca334ad6622a466a407febf8788c301cc81fc6a069a3eb071bf

(this sample)

  
Dropped by
SHA256 e205d74629973041cf1dc777f15c6fcb481fd30cbe6ce4ba1c9f549c4cd38b86
  
URLhaus
https://urlhaus.abuse.ch/url/3598081/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 8cd4b62d10989f81425d711988de367a

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