MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8633a532fca5bf08641cb8fb0cbf0e1da49f436cbd48af11d8ebf3af82b0428. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8633a532fca5bf08641cb8fb0cbf0e1da49f436cbd48af11d8ebf3af82b0428
SHA3-384 hash: 692b5fb1a8f2fb0b36fdba04f052d8afb924c3c2aaa41b48d47b7c94fa71aaa31526d05ba1fb96298175d468329d380f
SHA1 hash: 811c7f8b448961dbd2bb4f7402e7ba7a6b340f20
MD5 hash: eddd6a2b24613e3622b9c0ff3a163946
humanhash: vermont-utah-double-utah
File name:njvwa4
Download: download sample
Signature Mirai
Create hunting rule
File size:162'560 bytes
First seen:2024-12-30 01:47:26 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:ec8n+sXCFKtDDofaaINXivAppBCAsmo4Vp7gTCA33qW53O/5y0iVu2L5lmlwywrT:ec8nlnoLIqA7BCV4rgmA33zfnIWEXe
TLSH T16EF31941F8818F23C6D612BBFB5E428D372A17A8D3EE72039D255F21378695B0E37652
telfhash t1dcb012370f2114ccb284aa3395c53b048570f15c058760f16c45addf7ccf420f51a913
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 :
234
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.28886.LC.UNOFFICIAL
Create hunting rule

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

Unix.Trojan.Mirai-9441505-0
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

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6771fbd41bb06b888479660flinux22vpnfull_triage
Tags:
malware
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug bash lolbin remote
Link:
https://www.filescan.io/uploads/6771fbd4d986a2005f8e30c4/reports/944596d1-7e55-450d-9ec8-9e12c25e72bb/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
42
Number of processes launched:
2
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a8633a532fca5bf08641cb8fb0cbf0e1da49f436cbd48af11d8ebf3af82b0428
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9c014b63-b995-47f3-9c47-6aeab81c4e04
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1582187
Signature
Antivirus / Scanner detection for submitted 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: 1582187 Sample: njvwa4.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, 34692, 34696 LVLT-10753US Germany 2->155 157 89.190.156.145, 57266, 57270, 57276 HOSTUS-GLOBAL-ASHostUSHK United Kingdom 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->167 169 Yara detected Mirai 2->169 15 systemd gdm3 2->15         started        17 njvwa4.elf 2->17         started        19 systemd gpu-manager 2->19         started        21 50 other processes 2->21 signatures3 171 Sends malformed DNS queries 153->171 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 njvwa4.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 njvwa4.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 njvwa4.elf sh 48->71         started        73 njvwa4.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/a8633a532fca5bf08641cb8fb0cbf0e1da49f436cbd48af11d8ebf3af82b0428
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a8633a532fca5bf08641cb8fb0cbf0e1da49f436cbd48af11d8ebf3af82b0428/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2024-12-30 01:48:05 UTC
File Type:
ELF32 Little (Exe)
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vbrtuuzpzjn7bbsbzoh3bs7q4hnet5bwzpkiv4i5r27tv6blaqua._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:botnet discovery
Link:
https://tria.ge/reports/241230-b742latpdp/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Deletes itself
Malware Config
C2 Extraction:
89.190.156.145
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-9441505-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/4a661728-6273-4bfc-9dcb-d602b013efcf
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/a8633a532fca5bf08641cb8fb0cbf0e1da49f436cbd48af11d8ebf3af82b0428

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_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
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 a8633a532fca5bf08641cb8fb0cbf0e1da49f436cbd48af11d8ebf3af82b0428

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3377341/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3377343/

Comments