MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c9b4984eb0598462c2d486d0f34191c0ebe55b6f91e763ed3c0e01624585290. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1c9b4984eb0598462c2d486d0f34191c0ebe55b6f91e763ed3c0e01624585290
SHA3-384 hash: 8826317dde5cd71474da608b45f7ce067c07d9113f26d39c1683d83f2a25d0b6ad4fef8fbd99b4b04b093e225e9424c6
SHA1 hash: 166845e2270e6915d2aabfd3369d237c17cfb10f
MD5 hash: 8be7911dcf9f4be7fd4279b43c09f2c6
humanhash: lion-bravo-yankee-hawaii
File name:hold.arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:80'848 bytes
First seen:2025-01-30 10:51:35 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:yKJJOgGovtdVPTyfAxKIpEplXZUoG3zRAcgsL86Movb7:yKJdTYohpEplJmzResI6j7
TLSH T1B9832956BD819A13C6D0137BF66E428D3B2923E8E2DE7207DE216F21378681F0D67E51
telfhash t1cc41d0b69f761fec77c0928852cf90274aad35b91f0528aadf5c6f1b82db542f11c422
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 :
103
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.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:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679b5a9c29ae628cf42b8fb7linux22vpnfull_triage
Tags:
gafgyt mirai
Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
lolbin masquerade remote
Link:
https://www.filescan.io/uploads/679b59daac8b38d9947ec1b3/reports/65f42d96-fd59-4683-8c9b-593ad70420ac/overview
Result
Verdict:
MALICIOUS
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3534ddeb-2c29-4424-9c7f-f277078a0c6a
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1602958
Signature
Antivirus / Scanner detection for submitted sample
Drops files in suspicious directories
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 Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1602958 Sample: hold.arm5.elf Startdate: 30/01/2025 Architecture: LINUX Score: 100 51 109.202.202.202, 80 INIT7CH Switzerland 2->51 53 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->53 55 2 other IPs or domains 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus / Scanner detection for submitted sample 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 2 other signatures 2->63 8 hold.arm5.elf 2->8         started        12 systemd bash 2->12         started        14 systemd snapd-env-generator 2->14         started        signatures3 process4 file5 43 /etc/systemd/system/holdservice.service, ASCII 8->43 dropped 45 /etc/rc.local, ASCII 8->45 dropped 47 /etc/profile, ASCII 8->47 dropped 49 /etc/init.d/holdservice, Bourne-Again 8->49 dropped 65 Sample tries to persist itself using /etc/profile 8->65 67 Drops files in suspicious directories 8->67 69 Sample deletes itself 8->69 71 Sample tries to persist itself using System V runlevels 8->71 16 hold.arm5.elf sh 8->16         started        18 hold.arm5.elf sh 8->18         started        20 hold.arm5.elf sh 8->20         started        26 3 other processes 8->26 22 bash wget 12->22         started        24 bash sh 12->24         started        signatures6 process7 process8 28 sh chmod 16->28         started        31 sh chmod 18->31         started        33 sh systemctl 20->33         started        35 sh systemctl 26->35         started        37 sh ln 26->37         started        39 hold.arm5.elf 26->39         started        41 2 other processes 26->41 signatures9 73 Sample tries to set files in /etc globally writable 28->73
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/1c9b4984eb0598462c2d486d0f34191c0ebe55b6f91e763ed3c0e01624585290
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1c9b4984eb0598462c2d486d0f34191c0ebe55b6f91e763ed3c0e01624585290/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-30 10:52:05 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 22 (68.18%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dsnutbhlawmemlbnjbwq6nazdqhl4vnw7ephmpwtydqbmjcykkia._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable defense_evasion discovery persistence privilege_escalation
Link:
https://tria.ge/reports/250130-mydc3a1kgk/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Changes its process name
Modifies Bash startup script
Creates/modifies environment variables
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
File and Directory Permissions Modification
Deletes itself
Malware Config
C2 Extraction:
dkdrlahhwlxptmxm2.p-e.kr
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Dropper.Mirai-7135906-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/32e60608-cd20-4caf-8ed4-ba609ca37483
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/1c9b4984eb0598462c2d486d0f34191c0ebe55b6f91e763ed3c0e01624585290

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_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
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 1c9b4984eb0598462c2d486d0f34191c0ebe55b6f91e763ed3c0e01624585290

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3405911/
  
Delivery method
Distributed via web download

Comments