MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1b5e7b4da44dda350efa32458644ac0852534869a11c83da1be61445f6ce050. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c1b5e7b4da44dda350efa32458644ac0852534869a11c83da1be61445f6ce050
SHA3-384 hash: 7f0d4ebd85bbf912d0cb7fc910d932657cf306ae435de6ec232c2c5bad18f8c5527700a762fc8a1ba3794468a7ce2096
SHA1 hash: 3b53f5ba9761e00770ae2d75240860d8ba21b37f
MD5 hash: 4ee8564db9cea5ac7545fc5524c43a1a
humanhash: sink-missouri-juliet-river
File name:x86_32.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:87'028 bytes
First seen:2025-11-25 04:31:25 UTC
Last seen:2025-11-25 09:16:50 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:8lavuEueKnsIAk/Qg5J4aMX/9Zd5ChyxCmP7IYXv4X:CEuJsIAk/55J4aMlZ/M0FPh0
TLSH T13B836CC5D747C8F8FD660138623BE7368672E6391229DB4ACBB4F835D81A601E61736C
telfhash t15b3126fe1a7e4ce8a7c4a450824e6e31395ed77b2a607bb001b354342267e82547ec3e
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

Intelligence

File Origin
# of uploads :
2
# of downloads :
52
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10001386-0
Create hunting rule

Unix.Trojan.Mirai-10010119-0
Create hunting rule

Unix.Trojan.Mirai-10010127-0
Create hunting rule

Unix.Trojan.Mirai-10017351-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Changes access rights for a written file
Connection attempt
Runs as daemon
Kills processes
Opens a port
Launching a process
Sends data to a server
Creating a process from a recently created file
Creating a file
Deleting a recently created file
Deletes a file
Changes the time when the file was created, accessed, or modified
Receives data from a server
Sets a written file as executable
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/69253154f6a4ba1793afe192/reports/3bdf88d8-6974-47d4-898b-73888620671c/overview
Verdict:
Malicious
Uses P2P?:
true
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
12
Number of processes launched:
2
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/c1b5e7b4da44dda350efa32458644ac0852534869a11c83da1be61445f6ce050
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
type:Mirai 94.154.35.153:6969
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-25T01:55:00Z UTC
Last seen:
2025-11-25T02:35:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/c1b5e7b4da44dda350efa32458644ac0852534869a11c83da1be61445f6ce050/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a69111fa-f278-49e7-9b3c-7c97537c5bb0
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1820287
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Terminates several processes with shell command 'killall'
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1820287 Sample: x86_32.uhavenobotsxd.elf Startdate: 25/11/2025 Architecture: LINUX Score: 100 85 94.154.35.153, 33882, 6969 SELECTELRU Ukraine 2->85 87 172.65.228.124, 25565, 32776, 32786 CLOUDFLARENETUS United States 2->87 105 Malicious sample detected (through community Yara rule) 2->105 107 Multi AV Scanner detection for submitted file 2->107 11 x86_32.uhavenobotsxd.elf 2->11         started        signatures3 process4 signatures5 111 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->111 14 x86_32.uhavenobotsxd.elf 11->14         started        process6 file7 77 /var/spool/cron/root, ASCII 14->77 dropped 79 /var/spool/cron/crontabs/root, ASCII 14->79 dropped 81 /root/.bashrc, ASCII 14->81 dropped 83 8 other files (7 malicious) 14->83 dropped 115 Sample tries to set files in /etc globally writable 14->115 117 Sample tries to persist itself using /etc/profile 14->117 119 Drops files in suspicious directories 14->119 121 4 other signatures 14->121 18 x86_32.uhavenobotsxd.elf sh 14->18         started        20 x86_32.uhavenobotsxd.elf 14->20         started        22 x86_32.uhavenobotsxd.elf sh 14->22         started        24 20 other processes 14->24 signatures8 process9 signatures10 27 sh S99network 18->27         started        29 x86_32.uhavenobotsxd.elf sh 20->29         started        31 x86_32.uhavenobotsxd.elf sh 20->31         started        43 2 other processes 20->43 33 sh crontab 22->33         started        37 sh 22->37         started        109 Sample tries to kill multiple processes (SIGKILL) 24->109 39 sh cp 24->39         started        41 sh .monitor 24->41         started        45 16 other processes 24->45 process11 file12 47 S99network 27->47         started        49 sh .update 29->49         started        52 sh .update 31->52         started        73 /var/spool/cron/crontabs/tmp.I72IDG, ASCII 33->73 dropped 93 Sample tries to persist itself using cron 33->93 95 Executes the "crontab" command typically for achieving persistence 33->95 54 sh crontab 37->54         started        75 /usr/bin/.update, ELF 39->75 dropped 97 Drops invisible ELF files 39->97 99 Drops files in suspicious directories 39->99 56 .monitor 41->56         started        58 sh .update 43->58         started        101 Sample deletes itself 45->101 103 Terminates several processes with shell command 'killall' 45->103 signatures13 process14 signatures15 60 S99network .update 47->60         started        63 S99network .update 47->63         started        65 S99network .update 47->65         started        71 53 other processes 47->71 89 Sample reads /proc/mounts (often used for finding a writable filesystem) 49->89 91 Executes the "crontab" command typically for achieving persistence 54->91 67 .monitor .update 56->67         started        69 .monitor sleep 56->69         started        process16 signatures17 113 Sample reads /proc/mounts (often used for finding a writable filesystem) 60->113
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c1b5e7b4da44dda350efa32458644ac0852534869a11c83da1be61445f6ce050
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c1b5e7b4da44dda350efa32458644ac0852534869a11c83da1be61445f6ce050/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-25 04:32:22 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yg26png2ito2guhpumsfqzckyccsknegtii4qpnbxzquix3m4bia._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/251125-e5383agn7y/
Behaviour
Reads runtime system information
Writes file to shm directory
Changes its process name
Modifies Bash startup script
Creates a large amount of network flows
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates running processes
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-10001386-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/20923534-28cd-4dca-9e31-1526d7ed7844
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/c1b5e7b4da44dda350efa32458644ac0852534869a11c83da1be61445f6ce050

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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 c1b5e7b4da44dda350efa32458644ac0852534869a11c83da1be61445f6ce050

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3687976/
  
Delivery method
Distributed via web download

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