MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20cf7c5d9e847564dedbd5374bf3909ee98ee52a5f3e99fa28ab45c0ef9ff008. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 20cf7c5d9e847564dedbd5374bf3909ee98ee52a5f3e99fa28ab45c0ef9ff008
SHA3-384 hash: 110569d7cbc57eb042c3a15145387a2b6c6e4b3ee4f54f7009a05b6b9605e9559d78043149e71180f636baf2b58bd622
SHA1 hash: 568c9d4dfd69bca44145fad56d4bfc05c4019df2
MD5 hash: ec4d3b9be60373ba321b521625ab426f
humanhash: sierra-fruit-oxygen-missouri
File name:wkb86
Download: download sample
Signature Mirai
Create hunting rule
File size:116'588 bytes
First seen:2024-12-30 02:07:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:qQqD7K0a4sqPEd6WbkGITR+c7NIAhL2DsPcQsYs:3qXKz45q6WbVAl+kcQJs
TLSH T13DB37CC4F243E4F5E86301706037FB379B32E4795129EE43DB65AD32ACA2641DA1BA5C
telfhash t13851c3fb657f0ce5a7e4a801924e6f72294eaa7b245032f146f3d9703267e8144b9c39
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 :
146
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28880.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30423.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-9857931-0
Create hunting rule

Unix.Trojan.Mirai-9866113-0
Create hunting rule

Unix.Trojan.Mirai-9970440-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Unix.Trojan.Mirai-10028515-0
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6772008475fb913a147934c3linux22vpnfull_triage
Tags:
shellcode phishing
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Creating a file
Kills processes
Opens a port
Receives data from a server
Sends data to a server
Substitutes an application name
Deleting of the original file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug bash lolbin remote
Link:
https://www.filescan.io/uploads/67720084509459c7f8067709/reports/c0a75059-ca08-4794-879d-da7db41af04b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
29
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/20cf7c5d9e847564dedbd5374bf3909ee98ee52a5f3e99fa28ab45c0ef9ff008
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7340f06f-5138-4d2a-a235-b5eb80f4d73a
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1582209
Signature
Antivirus / Scanner detection for submitted sample
Machine Learning detection for sample
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 a massive number of system processes
Sample tries to kill multiple processes (SIGKILL)
Sends malformed DNS queries
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1582209 Sample: wkb86.elf Startdate: 30/12/2024 Architecture: LINUX Score: 100 153 fingwi.cardiacpure.ru. [malformed] 2->153 155 fingwi.cardiacpure.ru 178.215.238.112, 33966, 34674, 34678 LVLT-10753US Germany 2->155 157 2 other IPs or domains 2->157 163 Malicious sample detected (through community Yara rule) 2->163 165 Antivirus / Scanner detection for submitted sample 2->165 167 Multi AV Scanner detection for submitted file 2->167 171 2 other signatures 2->171 15 systemd gdm3 2->15         started        17 wkb86.elf 2->17         started        19 systemd gpu-manager 2->19         started        21 48 other processes 2->21 signatures3 169 Sends malformed DNS queries 153->169 process4 file5 25 gdm3 gdm-session-worker 15->25         started        27 gdm3 gdm-session-worker 15->27         started        38 3 other processes 15->38 29 wkb86.elf 17->29         started        32 gpu-manager sh 19->32         started        34 gpu-manager sh 19->34         started        40 6 other processes 19->40 151 /var/log/wtmp, data 21->151 dropped 175 Sample reads /proc/mounts (often used for finding a writable filesystem) 21->175 177 Reads system files that contain records of logged in users 21->177 36 accounts-daemon language-validate 21->36         started        42 13 other processes 21->42 signatures6 process7 signatures8 44 gdm-session-worker gdm-x-session 25->44         started        46 gdm-session-worker gdm-wayland-session 27->46         started        185 Sample deletes itself 29->185 48 wkb86.elf 29->48         started        51 sh grep 32->51         started        53 sh grep 34->53         started        55 language-validate language-options 36->55         started        57 sh grep 40->57         started        59 5 other processes 40->59 61 8 other processes 42->61 process9 signatures10 63 gdm-x-session dbus-run-session 44->63         started        65 gdm-x-session Xorg Xorg.wrap Xorg 44->65         started        67 gdm-x-session Default 44->67         started        69 gdm-wayland-session dbus-run-session 46->69         started        159 Sample tries to kill a massive number of system processes 48->159 161 Sample tries to kill multiple processes (SIGKILL) 48->161 71 wkb86.elf sh 48->71         started        73 wkb86.elf sh 48->73         started        75 language-options sh 55->75         started        process11 process12 77 dbus-run-session dbus-daemon 63->77         started        80 dbus-run-session gnome-session gnome-session-binary 63->80         started        82 Xorg sh 65->82         started        84 Xorg sh 65->84         started        86 dbus-run-session dbus-daemon 69->86         started        88 dbus-run-session gnome-session gnome-session-binary 69->88         started        90 sh ps 71->90         started        92 sh ps 73->92         started        94 2 other processes 75->94 signatures13 187 Sample tries to kill multiple processes (SIGKILL) 77->187 189 Sample reads /proc/mounts (often used for finding a writable filesystem) 77->189 96 dbus-daemon 77->96         started        98 dbus-daemon 77->98         started        107 9 other processes 77->107 100 gnome-session-binary sh gnome-shell 80->100         started        109 18 other processes 80->109 103 sh xkbcomp 82->103         started        105 sh xkbcomp 84->105         started        111 7 other processes 86->111 113 2 other processes 88->113 process14 signatures15 115 dbus-daemon at-spi-bus-launcher 96->115         started        117 dbus-daemon gjs 98->117         started        173 Sample reads /proc/mounts (often used for finding a writable filesystem) 100->173 120 gnome-shell ibus-daemon 100->120         started        128 9 other processes 107->128 122 gsd-print-notifications 109->122         started        130 2 other processes 109->130 124 dbus-daemon false 111->124         started        126 dbus-daemon false 111->126         started        132 5 other processes 111->132 process16 signatures17 134 at-spi-bus-launcher dbus-daemon 115->134         started        179 Sample reads /proc/mounts (often used for finding a writable filesystem) 117->179 137 ibus-daemon 120->137         started        139 ibus-daemon ibus-memconf 120->139         started        141 ibus-daemon ibus-engine-simple 120->141         started        143 gsd-print-notifications gsd-printer 122->143         started        process18 signatures19 181 Sample tries to kill multiple processes (SIGKILL) 134->181 183 Sample reads /proc/mounts (often used for finding a writable filesystem) 134->183 145 dbus-daemon 134->145         started        147 ibus-daemon ibus-x11 137->147         started        process20 process21 149 dbus-daemon at-spi2-registryd 145->149         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/20cf7c5d9e847564dedbd5374bf3909ee98ee52a5f3e99fa28ab45c0ef9ff008
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/20cf7c5d9e847564dedbd5374bf3909ee98ee52a5f3e99fa28ab45c0ef9ff008/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2024-12-30 03:02:05 UTC
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=edhxyxm6qr2wjxw32u3ux44qt3uy5zjkl47jt6rivnc4b3476aea._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:botnet discovery linux
Link:
https://tria.ge/reports/241230-ckjykstrcy/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Deletes itself
Malware Config
C2 Extraction:
boats.dogmuncher.xyz
89.190.156.145
Verdict:
Malicious
Tags:
trojan mirai gafgyt Unix.Trojan.Mirai-9441505-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3 Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/0b37f3b5-6fd0-4b56-8c5e-a3071894e589
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/20cf7c5d9e847564dedbd5374bf3909ee98ee52a5f3e99fa28ab45c0ef9ff008

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: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_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
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 20cf7c5d9e847564dedbd5374bf3909ee98ee52a5f3e99fa28ab45c0ef9ff008

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3377337/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3377345/

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