MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41a9fb1058fb469c0c8be148d700d38f8d168ca3e9d14566235a48913c09fe5a. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41a9fb1058fb469c0c8be148d700d38f8d168ca3e9d14566235a48913c09fe5a
SHA3-384 hash: 7459ab039a3bf702bf7059ec32e89045e0a5db14292794a3e020099cf1f098d1a29b71a2f35267471976ba4903447b5a
SHA1 hash: 3a6d70181b322d74d0a8097ae42d1b21b0463bd4
MD5 hash: bc0980783721d3d5dffbb3da7ec368aa
humanhash: lion-orange-pip-delaware
File name:x86_32.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:74'740 bytes
First seen:2025-11-19 20:36:43 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:aSEyWsOnpyjVcz2Xwo3c/3YbwOtbn/cuCXTfI5+WEfSyOmOLj:oPnpOyo3c/3YMOtbUuCXrIQXfQ
TLSH T199737DC6E743D4F9FE6206B96133AB7746B2E5390025DF46CB74B936EC12A01A31A35C
telfhash t1de31e6f61a7e18e8e7d5d940c31f5fe139aae23b259037e0856358303393e944079c3a
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 :
1
# of downloads :
51
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-10010127-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Creating a file
Changes the time when the file was created, accessed, or modified
Runs as daemon
Sets a written file as executable
Opens a port
Creating a process from a recently created file
Connection attempt
Changes access rights for a written file
Kills processes
Sends data to a server
Launching a process
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files in /init.d to set up autorun
Gathering data
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
26
Number of processes launched:
8
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/41a9fb1058fb469c0c8be148d700d38f8d168ca3e9d14566235a48913c09fe5a
Behaviour
Persistence
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:
2025-11-19T18:25:00Z UTC
Last seen:
2025-11-19T20:21:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/41a9fb1058fb469c0c8be148d700d38f8d168ca3e9d14566235a48913c09fe5a/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d4367971-18bc-4964-8991-dbb635325412
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1817206
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
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1817206 Sample: x86_32.uhavenobotsxd.elf Startdate: 19/11/2025 Architecture: LINUX Score: 88 65 171.225.223.108 VIETEL-AS-APViettelGroupVN Viet Nam 2->65 67 94.154.35.153 SELECTELRU Ukraine 2->67 69 5 other IPs or domains 2->69 71 Malicious sample detected (through community Yara rule) 2->71 10 x86_32.uhavenobotsxd.elf 2->10         started        signatures3 process4 signatures5 75 Sample reads /proc/mounts (often used for finding a writable filesystem) 10->75 13 x86_32.uhavenobotsxd.elf 10->13         started        process6 file7 57 /var/spool/cron/root, ASCII 13->57 dropped 59 /var/spool/cron/crontabs/root, ASCII 13->59 dropped 61 /root/.bashrc, ASCII 13->61 dropped 63 6 other malicious files 13->63 dropped 87 Sample tries to set files in /etc globally writable 13->87 89 Sample tries to persist itself using /etc/profile 13->89 91 Drops files in suspicious directories 13->91 93 3 other signatures 13->93 17 x86_32.uhavenobotsxd.elf sh 13->17         started        19 x86_32.uhavenobotsxd.elf sh 13->19         started        21 x86_32.uhavenobotsxd.elf 13->21         started        23 5 other processes 13->23 signatures8 process9 signatures10 26 sh crontab 17->26         started        30 sh 17->30         started        32 sh cp 19->32         started        34 x86_32.uhavenobotsxd.elf sh 21->34         started        36 x86_32.uhavenobotsxd.elf sh 21->36         started        38 x86_32.uhavenobotsxd.elf sh 21->38         started        40 x86_32.uhavenobotsxd.elf sh 21->40         started        73 Sample tries to kill multiple processes (SIGKILL) 23->73 42 x86_32.uhavenobotsxd.elf 23->42         started        44 3 other processes 23->44 process11 file12 53 /var/spool/cron/crontabs/tmp.9MbG80, ASCII 26->53 dropped 77 Sample tries to persist itself using cron 26->77 79 Executes the "crontab" command typically for achieving persistence 26->79 46 sh crontab 30->46         started        55 /usr/bin/.sh, ELF 32->55 dropped 81 Drops invisible ELF files 32->81 83 Drops files in suspicious directories 32->83 49 sh .sh 34->49         started        51 sh .sh 36->51         started        85 Sample tries to kill multiple processes (SIGKILL) 42->85 signatures13 process14 signatures15 95 Executes the "crontab" command typically for achieving persistence 46->95 97 Sample reads /proc/mounts (often used for finding a writable filesystem) 49->97
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/41a9fb1058fb469c0c8be148d700d38f8d168ca3e9d14566235a48913c09fe5a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/41a9fb1058fb469c0c8be148d700d38f8d168ca3e9d14566235a48913c09fe5a/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-19 20:37:22 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 36 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=igu7wecy7ndjydel4fenoagtr6grndfd5hiukzrdljejcpaj7zna._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/251119-zea5tad18d/
Behaviour
Reads runtime system information
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
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_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/dce50c07-619e-4cec-ace0-bbd0e6ab8c91
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/41a9fb1058fb469c0c8be148d700d38f8d168ca3e9d14566235a48913c09fe5a

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_b14f4c5d
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 41a9fb1058fb469c0c8be148d700d38f8d168ca3e9d14566235a48913c09fe5a

(this sample)

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

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