MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f555fb649aa4632ec420b52bd34e69d5cfe86f1245f4ea7f7fdc6f10a955bae. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f555fb649aa4632ec420b52bd34e69d5cfe86f1245f4ea7f7fdc6f10a955bae
SHA3-384 hash: ef32d8ced83afee98b6306373cd1d36921d9f38a8e8ec187a050ce99699bf47c22fabe9fc28278c20d80e1845eb3dc3c
SHA1 hash: 581d7d19f4bd0f319a0bceef20ff96e36c90c234
MD5 hash: 543ddf85aebaedf72787ecf20e6e6ef2
humanhash: indigo-angel-five-grey
File name:splx86
Download: download sample
Signature Mirai
Create hunting rule
File size:83'956 bytes
First seen:2026-01-28 11:47:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:vXl5zfemDz9T4U8TfJyEEhD5vy2Rm+a6t4qwEW/cTXrQlU0RK9Fb3CNF:v1pFn54UeYn5vjm+aehwZETX0ln47QF
TLSH T1CB837CC19543E8F1E9084278223BF3377576CAB80178FDF3F769697684299A0A14774E
telfhash t1b92103b616a71cd85be0ac12f14e6b707d5dab6f21602ad744f32834221368252bfd3d
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 :
72
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-9885259-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/6979f78da57b6af70d106f35/reports/833cbad7-7d68-4490-ae71-8b449c5ca0ed/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
43
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/4f555fb649aa4632ec420b52bd34e69d5cfe86f1245f4ea7f7fdc6f10a955bae
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/911faf96-8aea-4ba5-bbc1-d41f1c1845be
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1858902
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Drops invisible ELF files
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Reads system files that contain records of logged in users
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Sends malformed DNS queries
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1858902 Sample: splx86.elf Startdate: 28/01/2026 Architecture: LINUX Score: 84 148 slursontel.ru. [malformed] 2->148 150 slursbeback.ru. [malformed] 2->150 152 103 other IPs or domains 2->152 162 Malicious sample detected (through community Yara rule) 2->162 164 Multi AV Scanner detection for submitted file 2->164 166 Connects to many IPs within the same subnet mask (likely port scanning) 2->166 15 systemd gdm3 2->15         started        17 splx86.elf .irqbalance 2->17         started        21 systemd gpu-manager 2->21         started        23 29 other processes 2->23 signatures3 168 Sends malformed DNS queries 150->168 process4 file5 25 gdm3 gdm-session-worker 15->25         started        27 gdm3 gdm-session-worker 15->27         started        38 3 other processes 15->38 144 /dev/shm/.irqbalance, ELF 17->144 dropped 154 Drops invisible ELF files 17->154 156 Sample deletes itself 17->156 29 .irqbalance 17->29         started        32 gpu-manager sh 21->32         started        34 gpu-manager sh 21->34         started        40 6 other processes 21->40 146 /var/log/wtmp, data 23->146 dropped 158 Sample reads /proc/mounts (often used for finding a writable filesystem) 23->158 160 Reads system files that contain records of logged in users 23->160 36 accounts-daemon language-validate 23->36         started        42 4 other processes 23->42 signatures6 process7 signatures8 44 gdm-session-worker gdm-x-session 25->44         started        46 gdm-session-worker gdm-wayland-session 27->46         started        174 Sample tries to kill multiple processes (SIGKILL) 29->174 58 2 other processes 29->58 48 sh grep 32->48         started        50 sh grep 34->50         started        52 language-validate language-options 36->52         started        54 sh grep 40->54         started        56 sh grep 40->56         started        60 4 other processes 40->60 process9 process10 62 gdm-x-session dbus-run-session 44->62         started        64 gdm-x-session Xorg Xorg.wrap Xorg 44->64         started        66 gdm-x-session Default 44->66         started        68 gdm-wayland-session dbus-run-session 46->68         started        70 language-options sh 52->70         started        process11 72 dbus-run-session dbus-daemon 62->72         started        75 dbus-run-session gnome-session gnome-session-binary 62->75         started        77 Xorg sh 64->77         started        79 Xorg sh 64->79         started        81 dbus-run-session dbus-daemon 68->81         started        83 dbus-run-session gnome-session gnome-session-binary 1 68->83         started        85 sh locale 70->85         started        87 sh grep 70->87         started        signatures12 170 Sample tries to kill multiple processes (SIGKILL) 72->170 172 Sample reads /proc/mounts (often used for finding a writable filesystem) 72->172 89 dbus-daemon 72->89         started        91 dbus-daemon 72->91         started        100 9 other processes 72->100 93 gnome-session-binary sh gnome-shell 75->93         started        102 18 other processes 75->102 96 sh xkbcomp 77->96         started        98 sh xkbcomp 79->98         started        104 7 other processes 81->104 106 2 other processes 83->106 process13 signatures14 108 dbus-daemon at-spi-bus-launcher 89->108         started        110 dbus-daemon gjs 91->110         started        176 Sample reads /proc/mounts (often used for finding a writable filesystem) 93->176 113 gnome-shell ibus-daemon 93->113         started        121 9 other processes 100->121 115 gsd-print-notifications 102->115         started        123 2 other processes 102->123 117 dbus-daemon false 104->117         started        119 dbus-daemon false 104->119         started        125 5 other processes 104->125 process15 signatures16 127 at-spi-bus-launcher dbus-daemon 108->127         started        178 Sample reads /proc/mounts (often used for finding a writable filesystem) 110->178 130 ibus-daemon 113->130         started        132 ibus-daemon ibus-memconf 113->132         started        134 ibus-daemon ibus-engine-simple 113->134         started        136 gsd-print-notifications gsd-printer 115->136         started        process17 signatures18 180 Sample tries to kill multiple processes (SIGKILL) 127->180 182 Sample reads /proc/mounts (often used for finding a writable filesystem) 127->182 138 dbus-daemon 127->138         started        140 ibus-daemon ibus-x11 130->140         started        process19 process20 142 dbus-daemon at-spi2-registryd 138->142         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4f555fb649aa4632ec420b52bd34e69d5cfe86f1245f4ea7f7fdc6f10a955bae
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4f555fb649aa4632ec420b52bd34e69d5cfe86f1245f4ea7f7fdc6f10a955bae/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-28 11:48:35 UTC
File Type:
ELF32 Little (Exe)
AV detection:
8 of 36 (22.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j5kv7nsjvjddf3ccbnjl2nhgtvop5bxrerpu5j7x7xdpccuvloxa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery linux
Link:
https://tria.ge/reports/260128-nypa1aet9f/
Behaviour
Reads runtime system information
Writes file to shm directory
Enumerates running processes
Deletes itself
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4f555fb649aa4632ec420b52bd34e69d5cfe86f1245f4ea7f7fdc6f10a955bae

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_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_fa3ad9d0
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 4f555fb649aa4632ec420b52bd34e69d5cfe86f1245f4ea7f7fdc6f10a955bae

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739143/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739145/

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