MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd72083d32d2efb6e016141e71b54d3ac540c6a9fd4979a88cb688aed7cee276. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cd72083d32d2efb6e016141e71b54d3ac540c6a9fd4979a88cb688aed7cee276
SHA3-384 hash: 6775048035625b4a6b80b4257cba4ab934ccaa585c0521b5a31ab0087076a7e8daa5cf2df29dec700cb9494d6b1edc3b
SHA1 hash: c824ea2861705f93410d157619690b1eb0a574ec
MD5 hash: e4f7204d3431fb4bb48ab247f08505c5
humanhash: diet-freddie-mobile-monkey
File name:hold.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:156'954 bytes
First seen:2025-01-19 14:16:55 UTC
Last seen:2025-01-22 13:58:37 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:MkwTyVP7jvOXB7ayLZhzXYhBLrAuS2NrGFWS4PRM/9UrPZ:MByVjKR7ayLZhzX8B+kGFWnpM/9UB
TLSH T145E33C46F6814A13C4D6177AF6DF42493322A7A4A3DB730699187FF43F8279E0E63A05
telfhash t11d21fe369b62121a19a2cd64ddee47b1252c97271384ef33df25c4cc640a09ee62bc4f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
90
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-7135925-0
Create hunting rule

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

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

Unix.Trojan.Mirai-9760303-0
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:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678d0b814487910100e16fe6linux22vpnfull_triage
Tags:
malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Kills processes
Opens a port
Receives data from a server
Sends data to a server
Substitutes an application name
Kills critical processes
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
gcc lolbin masquerade mirai remote
Link:
https://www.filescan.io/uploads/678d0970886a7f86a8cce8a8/reports/17764672-29aa-4d9d-8b1a-5c706a05eb8c/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
47
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/cd72083d32d2efb6e016141e71b54d3ac540c6a9fd4979a88cb688aed7cee276
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3d3e1212-8ced-4ba4-9fa6-ff4b40034ea5
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1594616
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Contains symbols with names commonly found in malware
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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)
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1594616 Sample: hold.arm7.elf Startdate: 19/01/2025 Architecture: LINUX Score: 100 54 109.202.202.202, 80 INIT7CH Switzerland 2->54 56 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->56 58 3 other IPs or domains 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus / Scanner detection for submitted sample 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 4 other signatures 2->66 8 hold.arm7.elf 2->8         started        11 systemd gpu-manager 2->11         started        13 systemd gpu-manager 2->13         started        15 80 other processes 2->15 signatures3 process4 signatures5 68 Sample deletes itself 8->68 17 hold.arm7.elf 8->17         started        19 gpu-manager sh 11->19         started        21 gpu-manager sh 11->21         started        23 gpu-manager sh 11->23         started        29 3 other processes 11->29 25 gpu-manager sh 13->25         started        27 gpu-manager sh 13->27         started        31 3 other processes 13->31 70 Sample reads /proc/mounts (often used for finding a writable filesystem) 15->70 33 13 other processes 15->33 process6 process7 45 2 other processes 17->45 35 sh grep 19->35         started        37 sh grep 21->37         started        39 sh grep 23->39         started        41 sh grep 25->41         started        43 sh grep 27->43         started        48 3 other processes 29->48 50 3 other processes 31->50 52 6 other processes 33->52 signatures8 72 Sample tries to kill a massive number of system processes 45->72 74 Sample tries to kill multiple processes (SIGKILL) 45->74
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/cd72083d32d2efb6e016141e71b54d3ac540c6a9fd4979a88cb688aed7cee276
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cd72083d32d2efb6e016141e71b54d3ac540c6a9fd4979a88cb688aed7cee276/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-19 14:18:04 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=zvzaqpjs2lx3nyawcqphdnknhlcubrvj7vextkemw2ek5v6o4j3a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable defense_evasion discovery
Link:
https://tria.ge/reports/250119-rlpb1s1qgp/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Writes file to system bin folder
Deletes itself
Modifies Watchdog functionality
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/8bf3d4ad-f3c3-48fb-8785-1077f22bc6e0
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/cd72083d32d2efb6e016141e71b54d3ac540c6a9fd4979a88cb688aed7cee276

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
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:Linux_Generic_Threat_3bcc1630
Create hunting rule
Author:Elastic Security
Rule name:Linux_Generic_Threat_8299c877
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 cd72083d32d2efb6e016141e71b54d3ac540c6a9fd4979a88cb688aed7cee276

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3405945/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3405953/

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