MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d71abad98597a404007e8dc9cbec5d749e21230ff503b7574062b04378aaeb6. 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 9 File information Comments
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SHA256 hash: 4d71abad98597a404007e8dc9cbec5d749e21230ff503b7574062b04378aaeb6
SHA3-384 hash: 27f2b42f41d57b92000657b3001067ab025a4a20909e93979f54ca24d10938de131cdd9d7dec999fc4aea8aa1142d7a3
SHA1 hash: 775dc812e03c969b8517886e93edc1aba87e6a05
MD5 hash: 40953e5e39be070eeba71856a0bc0803
humanhash: september-fifteen-item-wisconsin
File name:hold.arm7
Download: download sample
Signature Mirai
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File size:166'282 bytes
First seen:2025-01-30 11:21:43 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:yf40PLq/XC8deqNd0qaJ+8Od0C9fuWysej80VsnOQEM/9HtGL/W:yf40PELPdLaJ+8Od0cuWcJsnOnM/9HUO
TLSH T12DF33B46FA814B13C4D2177AB6DF42453332A7A493DB730699286FB43F8679F0E63905
telfhash t1ac31fe765b76112a2a62cd589dee67b6111d96231385ef33ef60c4cc101f05ea53bc0f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
107
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
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SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
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Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
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Unix.Dropper.Mirai-7135906-0
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Unix.Dropper.Mirai-7135925-0
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Unix.Dropper.Mirai-7135966-0
Create hunting rule

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

Unix.Trojan.Mirai-9760303-0
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Unix.Trojan.Mirai-9935718-0
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Unix.Trojan.Mirai-9945193-0
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Unix.Trojan.Mirai-9946826-0
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Unix.Dropper.Mirai-10008433-0
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Unix.Trojan.Mirai-10028946-0
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Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679c49a502140668e2cdb4a9linux22vpnfull_triage
Tags:
gafgyt mirai ddos
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Manages services
Connection attempt
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
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:
gcc lolbin masquerade mirai remote
Link:
https://www.filescan.io/uploads/679b60e1414c56eb9502ae77/reports/5ccc40ee-4e29-411e-88b3-df950e2e9cfa/overview
Result
Verdict:
UNKNOWN
Malware family:
Mirai
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/186905f7-9d7b-4123-9fb7-d53c8e6df569
Result
Threat name:
Mirai, Okiru
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Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1602985
Signature
Antivirus / Scanner detection for submitted sample
Contains symbols with names commonly found in malware
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: 1602985 Sample: hold.arm7.elf Startdate: 30/01/2025 Architecture: LINUX Score: 100 51 dkdrlahhwlxptmxm2.p-e.kr 193.143.1.66, 36450, 39980, 39982 BITWEB-ASRU unknown 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus / Scanner detection for submitted sample 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 3 other signatures 2->59 8 hold.arm7.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 61 Sample tries to persist itself using /etc/profile 8->61 63 Drops files in suspicious directories 8->63 65 Sample deletes itself 8->65 67 Sample tries to persist itself using System V runlevels 8->67 16 hold.arm7.elf sh 8->16         started        18 hold.arm7.elf sh 8->18         started        20 hold.arm7.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.arm7.elf 26->39         started        41 2 other processes 26->41 signatures9 69 Sample tries to set files in /etc globally writable 28->69
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4d71abad98597a404007e8dc9cbec5d749e21230ff503b7574062b04378aaeb6
Detection:
mirai
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Link:
https://mwdb.cert.pl/sample/4d71abad98597a404007e8dc9cbec5d749e21230ff503b7574062b04378aaeb6/
Threat name:
Linux.Backdoor.Mirai
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Status:
Malicious
First seen:
2025-01-30 11:22:05 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jvy2xlmylf5eaqah5dojzpwf25e6eerq75idw5luayvqin4kv23a._file
Result
Malware family:
mirai
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Score:
  10/10
Tags:
family:mirai botnet:unstable defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/250130-ngjzys1phn/
Behaviour
Command and Scripting Interpreter: Unix Shell
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/073513c1-ac3e-4f1d-8d6d-6ca17ec0afb3
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/4d71abad98597a404007e8dc9cbec5d749e21230ff503b7574062b04378aaeb6

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:ELF_Mirai
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Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:Linux_Generic_Threat_3bcc1630
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Author:Elastic Security
Rule name:Linux_Generic_Threat_8299c877
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Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
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Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
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Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
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Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SUSP_XORed_Mozilla_Oct19
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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
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Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:unixredflags3
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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 4d71abad98597a404007e8dc9cbec5d749e21230ff503b7574062b04378aaeb6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3405945/
  
Delivery method
Distributed via web download

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