MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3faf435798bf284f72555578d9c55674772ad2d80ef3ed791ee0f0b3a59a1a1f. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3faf435798bf284f72555578d9c55674772ad2d80ef3ed791ee0f0b3a59a1a1f
SHA3-384 hash: af89607f251a54bd3bdf49e993c380d6bed2716ec690db32f53ac2c1c4f67f73f310ae5501a19b8b74731464ad64bd04
SHA1 hash: 63b88a754be44ee986527fab7922a4ce34982eb0
MD5 hash: f72a33c782d970fc37982751e68f1380
humanhash: shade-don-emma-may
File name:arm5.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:266'880 bytes
First seen:2025-09-13 16:13:21 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:wzxpOiPs7NC13Kodw8U55dEseXr1awpJxaU+KC+LdKnICXRA:wzxpOiz13Kv8U55dedraPDYMnICXRA
TLSH T161444C55FD51CA52C9C46677BBBE828C335717B8C3EB31179E145F60638A82B0E7BA80
telfhash t10c01c0484c3b69fce7e89465c2e972156ecc15242f010ce602fab8ad8e169c098f7c18
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 :
60
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.31069.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

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

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

Unix.Trojan.Gafgyt-9940653-0
Create hunting rule

Unix.Trojan.Mirai-9951087-0
Create hunting rule

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

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

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm rust
Link:
https://www.filescan.io/uploads/68c59830dbc6f5a29c43707f/reports/5e5af598-97b0-421a-be4a-770142c57be9/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-09-13T11:40:00Z UTC
Last seen:
2025-09-13T11:40:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.gen
Link:
https://opentip.kaspersky.com/3faf435798bf284f72555578d9c55674772ad2d80ef3ed791ee0f0b3a59a1a1f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/fa40606a-314d-49b8-8178-e4d3a08bcca3
Behavior Graph:
Download SVG
%3 guuid=91848bec-1800-0000-0635-7c50a00b0000 pid=2976 /usr/bin/sudo guuid=3659faef-1800-0000-0635-7c50ab0b0000 pid=2987 /tmp/sample.bin guuid=91848bec-1800-0000-0635-7c50a00b0000 pid=2976->guuid=3659faef-1800-0000-0635-7c50ab0b0000 pid=2987 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/a64d8d88-1a31-4ec6-97e1-d6b0d9aa32b0
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1777022
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Deletes system log files
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
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
Writes identical ELF files to multiple locations
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1777022 Sample: arm5.urbotnetisass.elf Startdate: 13/09/2025 Architecture: LINUX Score: 100 89 94.154.35.153, 43212 SELECTELRU Ukraine 2->89 105 Antivirus detection for dropped file 2->105 107 Antivirus / Scanner detection for submitted sample 2->107 109 Multi AV Scanner detection for submitted file 2->109 111 2 other signatures 2->111 12 arm5.urbotnetisass.elf 2->12         started        14 udisksd dumpe2fs 2->14         started        16 udisksd dumpe2fs 2->16         started        18 27 other processes 2->18 signatures3 process4 process5 20 arm5.urbotnetisass.elf 12->20         started        file6 75 /usr/bin/uraskid, ELF 20->75 dropped 77 /root/.bashrc, ASCII 20->77 dropped 79 /root/.bash_profile, ASCII 20->79 dropped 81 48 other malicious files 20->81 dropped 115 Sample tries to set files in /etc globally writable 20->115 117 Writes identical ELF files to multiple locations 20->117 119 Drops files in suspicious directories 20->119 121 2 other signatures 20->121 24 arm5.urbotnetisass.elf sh 20->24         started        26 arm5.urbotnetisass.elf sh 20->26         started        28 arm5.urbotnetisass.elf sh 20->28         started        30 8 other processes 20->30 signatures7 process8 file9 34 sh cp 24->34         started        37 sh crontab 26->37         started        40 sh 26->40         started        42 sh cp 28->42         started        87 /etc/sedxoHtCW, POSIX 30->87 dropped 123 Sample tries to persist itself using System V runlevels 30->123 44 arm5.urbotnetisass.elf 30->44         started        46 sh cp 30->46         started        48 sh systemctl 30->48         started        50 3 other processes 30->50 signatures10 process11 file12 91 Writes identical ELF files to multiple locations 34->91 93 Drops invisible ELF files 34->93 95 Drops files in suspicious directories 34->95 83 /var/spool/cron/crontabs/tmp.a9MH8L, ASCII 37->83 dropped 97 Sample tries to persist itself using cron 37->97 99 Executes the "crontab" command typically for achieving persistence 37->99 52 sh crontab 40->52         started        55 sh grep 40->55         started        85 /usr/bin/.sh, ELF 42->85 dropped 101 Sample reads /proc/mounts (often used for finding a writable filesystem) 44->101 103 Deletes system log files 44->103 57 arm5.urbotnetisass.elf 44->57         started        59 arm5.urbotnetisass.elf 44->59         started        61 arm5.urbotnetisass.elf 44->61         started        65 7 other processes 44->65 63 systemctl systemd-sysv-install 48->63         started        signatures13 process14 signatures15 113 Executes the "crontab" command typically for achieving persistence 52->113 67 systemd-sysv-install update-rc.d 63->67         started        69 systemd-sysv-install getopt 63->69         started        71 systemd-sysv-install update-rc.d 63->71         started        process16 process17 73 update-rc.d systemctl 67->73         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/3faf435798bf284f72555578d9c55674772ad2d80ef3ed791ee0f0b3a59a1a1f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3faf435798bf284f72555578d9c55674772ad2d80ef3ed791ee0f0b3a59a1a1f/
Verdict:
Malicious
Threat:
Backdoor.Linux.Mirai
Link:
https://tip.neiki.dev/file/3faf435798bf284f72555578d9c55674772ad2d80ef3ed791ee0f0b3a59a1a1f
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-13 14:37:06 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h6xugv4yx4ue64svkv4ntrkwor3svuwyb3z626i64dylhjm2dipq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/250913-tpcthadm5z/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/d552c834-f8d0-458c-ad61-7649e01459d3
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/3faf435798bf284f72555578d9c55674772ad2d80ef3ed791ee0f0b3a59a1a1f

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: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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 3faf435798bf284f72555578d9c55674772ad2d80ef3ed791ee0f0b3a59a1a1f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3618220/
  
Delivery method
Distributed via web download

Comments