MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f4ead21261a4872c7bbdc341a3cab2d09a881bc1ca20a78f3cbe3800cd54f0d. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5f4ead21261a4872c7bbdc341a3cab2d09a881bc1ca20a78f3cbe3800cd54f0d
SHA3-384 hash: 1617dd6f78845dbc0e388c3e9ee01bf842f51472be2128fed5ac5f017416eaf248bc43b8e1668d5548ce9bbbd9191422
SHA1 hash: 269cdda58a40a9ec712128e797b44b8568b6bbf0
MD5 hash: 50d8307f12e36254e8673e7c377aa4a0
humanhash: nine-don-friend-saturn
File name:Fantazy.arm4
Download: download sample
Signature Mirai
Create hunting rule
File size:62'468 bytes
First seen:2026-01-07 10:29:35 UTC
Last seen:2026-01-08 08:40:18 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:NADjw30lLvPHwzKh/zjwA7u0hkermbANacd8UYyCQZydRU6SE4N0L3rOCd0RSBnQ:EE3oLge93w3fU2/ZxTBTo
TLSH T1C55317C6BC40EA15C7C00677FE5F509E3705A7C8E1EA3202AD296FA47B8FD1B0D5A619
telfhash t10b31ccb687910eec2be5d348869e603c8f7d31fc6b10217e9ab9e34b81634d0701b917
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 :
78
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/500f8145-c376-4146-b3c4-c4ebfeef138c/
Detection(s):
Unix.Trojan.Mirai-7135937-0
Create hunting rule

Unix.Dropper.Mirai-7136014-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated rust
Link:
https://www.filescan.io/uploads/695e35c187e75cdd5af63af0/reports/0e1c7e24-e9aa-48b2-a9f1-f2d1b2dd1d93/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-07T07:36:00Z UTC
Last seen:
2026-01-08T02:54:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/5f4ead21261a4872c7bbdc341a3cab2d09a881bc1ca20a78f3cbe3800cd54f0d/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/53f4e73d-afa7-4b33-a95c-2b5be2bec65a
Behavior Graph:
Download SVG
%3 guuid=815850ee-1500-0000-b457-a8c08e0d0000 pid=3470 /usr/bin/sudo guuid=da79ebef-1500-0000-b457-a8c0950d0000 pid=3477 /tmp/sample.bin guuid=815850ee-1500-0000-b457-a8c08e0d0000 pid=3470->guuid=da79ebef-1500-0000-b457-a8c0950d0000 pid=3477 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3ea9cb0a-215b-421b-b3fa-7b7ce8a566b6
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1845935
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Multi AV Scanner detection for submitted file
Reads system files that contain records of logged in users
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1845935 Sample: Fantazy.arm4.elf Startdate: 07/01/2026 Architecture: LINUX Score: 72 80 67.111.92.161, 23 XO-AS15US United States 2->80 82 144.92.49.67, 23 WISC-MADISON-ASUS United States 2->82 84 99 other IPs or domains 2->84 88 Antivirus / Scanner detection for submitted sample 2->88 90 Multi AV Scanner detection for submitted file 2->90 92 Connects to many ports of the same IP (likely port scanning) 2->92 11 systemd gdm3 2->11         started        13 systemd gpu-manager 2->13         started        15 systemd accounts-daemon 2->15         started        18 20 other processes 2->18 signatures3 process4 file5 21 gdm3 gdm-session-worker 11->21         started        33 3 other processes 11->33 23 gpu-manager sh 13->23         started        25 gpu-manager sh 13->25         started        27 gpu-manager sh 13->27         started        35 5 other processes 13->35 98 Reads system files that contain records of logged in users 15->98 29 accounts-daemon language-validate 15->29         started        78 /var/log/wtmp, data 18->78 dropped 100 Sample reads /proc/mounts (often used for finding a writable filesystem) 18->100 31 Fantazy.arm4.elf 18->31         started        37 2 other processes 18->37 signatures6 process7 process8 39 gdm-session-worker gdm-wayland-session 21->39         started        41 sh grep 23->41         started        43 sh grep 25->43         started        45 sh grep 27->45         started        47 language-validate language-options 29->47         started        49 Fantazy.arm4.elf 31->49         started        52 Fantazy.arm4.elf 31->52         started        54 Fantazy.arm4.elf 31->54         started        56 5 other processes 35->56 signatures9 58 gdm-wayland-session dbus-run-session 39->58         started        60 gdm-wayland-session dbus-daemon 39->60         started        63 language-options sh 47->63         started        86 Sample tries to kill multiple processes (SIGKILL) 49->86 65 Fantazy.arm4.elf 52->65         started        process10 signatures11 67 dbus-run-session dbus-daemon 58->67         started        96 Sample reads /proc/mounts (often used for finding a writable filesystem) 60->96 70 dbus-daemon 60->70         started        72 sh locale 63->72         started        74 sh grep 63->74         started        process12 signatures13 94 Sample reads /proc/mounts (often used for finding a writable filesystem) 67->94 76 dbus-daemon false 70->76         started        process14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/5f4ead21261a4872c7bbdc341a3cab2d09a881bc1ca20a78f3cbe3800cd54f0d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5f4ead21261a4872c7bbdc341a3cab2d09a881bc1ca20a78f3cbe3800cd54f0d/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/5f4ead21261a4872c7bbdc341a3cab2d09a881bc1ca20a78f3cbe3800cd54f0d
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-07 10:30:27 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l5hk2ijgdjehfr533q2bupflfue2ran4dsrau6htzpryadgvj4gq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/260107-mj1j2scz4a/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7135937-0
YARA:
n/a
Link:
https://app.threat.zone/submission/052703d8-911f-4983-a884-53b57622d4a4
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/5f4ead21261a4872c7bbdc341a3cab2d09a881bc1ca20a78f3cbe3800cd54f0d

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_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: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

File information

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

Web download

Mirai

elf 5f4ead21261a4872c7bbdc341a3cab2d09a881bc1ca20a78f3cbe3800cd54f0d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3750694/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3750052/

Comments