MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b77083c1ceff56126d911b74e7326ed25f9b23ae7be8983979c277b2c46b9671. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b77083c1ceff56126d911b74e7326ed25f9b23ae7be8983979c277b2c46b9671
SHA3-384 hash: b8a709a50c2c6287f8fec5846f9a9e95eb2dcaf2ba7af1e0c3b7dc11abf9940f64ecc7d91eca1d6831b82d627abf3593
SHA1 hash: 83357470f12183b500950874a9231b06d1ef2eac
MD5 hash: 53ee1786f817d29d9f220ec984104041
humanhash: virginia-wyoming-lithium-early
File name:wriww68k
Download: download sample
Signature Mirai
Create hunting rule
File size:180'192 bytes
First seen:2024-11-29 01:31:31 UTC
Last seen:2024-12-13 13:50:46 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:vuCMl15f2bKUgYnyLrdWOONPMD3sbtPZ4egVrjbiIL0b7+GV6Nfq:WP+yLhWOkP59Z4ecL0b7+jNfq
TLSH T14E043AC7F800EEBEF80AE3374453091AB130B7E154825B376267797BED3A1951927E86
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
140
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
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-6981989-0
Create hunting rule

Unix.Trojan.Gafgyt-7782058-0
Create hunting rule

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

Unix.Trojan.Mirai-9940650-0
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-10012509-0
Create hunting rule

Unix.Trojan.Mirai-10017111-0
Create hunting rule

Unix.Trojan.Mirai-10018298-0
Create hunting rule

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67491b5004c232bff3b489bclinux22vpnfull_triage
Tags:
malware
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-debug bash lolbin remote
Link:
https://www.filescan.io/uploads/674919996afebed48a512023/reports/a98b4f15-62b7-47c9-9f04-0c192fa14e80/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/e501f351-5929-42a6-affa-fc7dd0074098
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1564936
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: 1564936 Sample: wriww68k.elf Startdate: 29/11/2024 Architecture: LINUX Score: 100 101 raw.cardiacpure.ru. [malformed] 2->101 103 raw.cardiacpure.ru 178.215.238.4, 33966, 50078, 50086 LVLT-10753US Germany 2->103 105 89.190.156.145, 37426, 37430, 37432 HOSTUS-GLOBAL-ASHostUSHK United Kingdom 2->105 111 Malicious sample detected (through community Yara rule) 2->111 113 Antivirus / Scanner detection for submitted sample 2->113 115 Multi AV Scanner detection for submitted file 2->115 117 Yara detected Mirai 2->117 11 systemd gdm3 2->11         started        13 systemd gdm3 2->13         started        15 wriww68k.elf 2->15         started        17 71 other processes 2->17 signatures3 119 Sends malformed DNS queries 101->119 process4 file5 21 gdm3 gdm-session-worker 11->21         started        34 3 other processes 11->34 23 gdm3 gdm-session-worker 13->23         started        36 3 other processes 13->36 25 wriww68k.elf 15->25         started        99 /var/log/wtmp, data 17->99 dropped 107 Sample reads /proc/mounts (often used for finding a writable filesystem) 17->107 109 Reads system files that contain records of logged in users 17->109 28 systemd dbus-daemon 17->28         started        30 systemd dbus-daemon 17->30         started        32 accounts-daemon language-validate 17->32         started        38 49 other processes 17->38 signatures6 process7 signatures8 40 gdm-session-worker gdm-wayland-session 21->40         started        42 gdm-session-worker gdm-wayland-session 23->42         started        121 Sample deletes itself 25->121 44 wriww68k.elf 25->44         started        123 Sample reads /proc/mounts (often used for finding a writable filesystem) 28->123 47 language-validate language-options 32->47         started        49 language-validate language-options 38->49         started        51 language-validate language-options 38->51         started        53 systemd 30-systemd-environment-d-generator 38->53         started        55 33 other processes 38->55 process9 signatures10 57 gdm-wayland-session dbus-run-session 40->57         started        59 gdm-wayland-session dbus-daemon 40->59         started        62 gdm-wayland-session dbus-run-session 42->62         started        64 gdm-wayland-session dbus-daemon 42->64         started        127 Sample tries to kill a massive number of system processes 44->127 129 Sample tries to kill multiple processes (SIGKILL) 44->129 66 wriww68k.elf sh 44->66         started        68 wriww68k.elf sh 44->68         started        70 language-options sh 47->70         started        72 language-options sh 49->72         started        74 language-options sh 51->74         started        process11 signatures12 76 dbus-run-session dbus-daemon 57->76         started        125 Sample reads /proc/mounts (often used for finding a writable filesystem) 59->125 79 dbus-daemon 59->79         started        81 dbus-run-session dbus-daemon 62->81         started        83 dbus-daemon 64->83         started        85 sh ps 66->85         started        87 sh ps 68->87         started        89 2 other processes 70->89 91 2 other processes 72->91 93 2 other processes 74->93 process13 signatures14 131 Sample reads /proc/mounts (often used for finding a writable filesystem) 76->131 95 dbus-daemon false 79->95         started        97 dbus-daemon false 83->97         started        process15
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b77083c1ceff56126d911b74e7326ed25f9b23ae7be8983979c277b2c46b9671
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b77083c1ceff56126d911b74e7326ed25f9b23ae7be8983979c277b2c46b9671/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2024-11-29 01:32:07 UTC
File Type:
ELF32 Big (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w5yihqoo75lbe3mrdn2oomto2jpzwi5oppujqolzyj33frdlszyq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/241129-bxyrtstmgn/
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-6981989-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/305db7d1-a7b5-49f6-a982-dfc09554d4e3
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/b77083c1ceff56126d911b74e7326ed25f9b23ae7be8983979c277b2c46b9671

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: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 b77083c1ceff56126d911b74e7326ed25f9b23ae7be8983979c277b2c46b9671

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3311105/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3311118/

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