MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b0d4c5f574262235ac9b84f14ab01c858aed158598ac0eac7b9c1197921429e6. 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 11 File information Comments
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SHA256 hash: b0d4c5f574262235ac9b84f14ab01c858aed158598ac0eac7b9c1197921429e6
SHA3-384 hash: 78b10bb3c0241cf921cafbcdca0da40bcea7e389f2e8d20df8985165ff2dfc1b1e0b2c661374d8b9b46da405f4fc66af
SHA1 hash: 414940006664c111fcc85af639e20384abd91a0e
MD5 hash: 06a0e480553dcba02700112a8baaf7a0
humanhash: bakerloo-carolina-idaho-cola
File name:hold.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:71'024 bytes
First seen:2025-01-30 10:41:33 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:wUfDlg8BuA1D+v49jqIRWlXianBELKUngyZHsRrAWSC:wULlg8BuAWOUlXDnBHUn3ZMtV
TLSH T1866349C4EA83C8F9FD2605701133F7329B72F53A1229CA4BC7AC9A769C52642E54739D
telfhash t10331b3f70d6e0ce8b7d06844c35e6e02295ae67b15a07ba44073996032bfec694b9c39
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 :
94
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135906-0
Create hunting rule

Unix.Dropper.Mirai-7135966-0
Create hunting rule

Unix.Dropper.Mirai-7135979-0
Create hunting rule

Unix.Trojan.Mirai-9935718-0
Create hunting rule

Unix.Trojan.Mirai-9945193-0
Create hunting rule

Unix.Trojan.Mirai-9946826-0
Create hunting rule

Unix.Dropper.Mirai-10008433-0
Create hunting rule

Unix.Trojan.Mirai-10028946-0
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679b57ae29ae628cf42b8f0elinux22vpnfull_triage
Tags:
ransomware shellcode
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Connection attempt
Manages services
Creating a file
DNS request
Runs as daemon
Kills processes
Opens a port
Receives data from a server
Sets a written file as executable
Sends data to a server
Substitutes an application name
Kills critical processes
Creates or modifies files to set up autorun
Creates or modifies files in /init.d to set up autorun
Deleting of the original file
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
lolbin masquerade remote
Link:
https://www.filescan.io/uploads/679b5780a2886cdc5ac6bb5b/reports/dffb3f70-8989-476a-857b-5ce8e8030b6b/overview
Result
Verdict:
MALICIOUS
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c22e5b74-c377-4313-acb4-e264ae99c0bd
Result
Threat name:
Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1602948
Signature
Drops files in suspicious directories
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1602948 Sample: hold.x86.elf Startdate: 30/01/2025 Architecture: LINUX Score: 88 53 109.202.202.202, 80 INIT7CH Switzerland 2->53 55 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->55 57 2 other IPs or domains 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 Yara detected Okiru 2->63 65 Machine Learning detection for sample 2->65 8 dash rm hold.x86.elf 2->8         started        12 systemd bash 2->12         started        14 dash rm 2->14         started        16 systemd snapd-env-generator 2->16         started        signatures3 process4 file5 45 /etc/systemd/system/holdservice.service, ASCII 8->45 dropped 47 /etc/rc.local, ASCII 8->47 dropped 49 /etc/profile, ASCII 8->49 dropped 51 /etc/init.d/holdservice, Bourne-Again 8->51 dropped 67 Sample tries to persist itself using /etc/profile 8->67 69 Drops files in suspicious directories 8->69 71 Sample deletes itself 8->71 73 Sample tries to persist itself using System V runlevels 8->73 18 hold.x86.elf sh 8->18         started        20 hold.x86.elf sh 8->20         started        22 hold.x86.elf sh 8->22         started        28 3 other processes 8->28 24 bash wget 12->24         started        26 bash sh 12->26         started        signatures6 process7 process8 30 sh chmod 18->30         started        33 sh chmod 20->33         started        35 sh systemctl 22->35         started        37 sh systemctl 28->37         started        39 sh ln 28->39         started        41 hold.x86.elf 28->41         started        43 2 other processes 28->43 signatures9 75 Sample tries to set files in /etc globally writable 30->75
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b0d4c5f574262235ac9b84f14ab01c858aed158598ac0eac7b9c1197921429e6
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b0d4c5f574262235ac9b84f14ab01c858aed158598ac0eac7b9c1197921429e6/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-30 10:42:07 UTC
File Type:
ELF32 Little (Exe)
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wdkml5lueyrdlle3qtyuvma4qwfo2fmftcwa5ld3tqizpequfhta._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable defense_evasion linux persistence privilege_escalation
Link:
https://tria.ge/reports/250130-mrnkfs1jbk/
Behaviour
Modifies Bash startup script
Creates/modifies environment variables
Modifies rc script
Malware Config
C2 Extraction:
dkdrlahhwlxptmxm2.p-e.kr
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Dropper.Mirai-7135906-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/936110c2-b322-40f6-809b-ba0204ff43ff
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/b0d4c5f574262235ac9b84f14ab01c858aed158598ac0eac7b9c1197921429e6

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_Threat_3bcc1630
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_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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
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 b0d4c5f574262235ac9b84f14ab01c858aed158598ac0eac7b9c1197921429e6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3405871/
  
Delivery method
Distributed via web download

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