MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8a38e4f5a39c9d4ff3bfc10503d1d896ba72a2b73231037c569752b6d8a22f9. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8a38e4f5a39c9d4ff3bfc10503d1d896ba72a2b73231037c569752b6d8a22f9
SHA3-384 hash: 6515be73da46723e876aef330123a1a21f4519b3ab7348c0ad6c94e7584604e60691668a20e9ec3bbfaf17fb92e711f5
SHA1 hash: f2641e3adb6240023146ac3fd462ea382f174391
MD5 hash: 7d6d0713860fa28897030242000ff6b9
humanhash: two-speaker-robert-solar
File name:hold.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:101'400 bytes
First seen:2025-01-24 04:41:46 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:YEqrotW2kKkwHz9u17gC+tNZOl4VH+nyB6UZMEQNalBlLrX:YEqrotW2ka9u5hmH+ntU7rlLr
TLSH T1D3A3C709BB511FF7DC9BDC3706AD1702288C685B22A4BF36B534D428BA4B64F59E3C64
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 :
131
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-10017641-0
Create hunting rule

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

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Opens a port
Receives data from a server
Sends data to a server
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
bash lolbin masquerade remote
Link:
https://www.filescan.io/uploads/67931a1efbe0ff41551e9f2c/reports/a0c325ec-f054-4780-b0da-8b23f09e62a7/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/f8a38e4f5a39c9d4ff3bfc10503d1d896ba72a2b73231037c569752b6d8a22f9
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b7182012-9103-4586-84a7-33b4ac3aa36e
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1598322
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1598322 Sample: hold.mpsl.elf Startdate: 24/01/2025 Architecture: LINUX Score: 84 21 109.202.202.202, 80 INIT7CH Switzerland 2->21 23 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->23 25 2 other IPs or domains 2->25 27 Malicious sample detected (through community Yara rule) 2->27 29 Antivirus / Scanner detection for submitted sample 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 2 other signatures 2->33 8 dash rm hold.mpsl.elf 2->8         started        11 dash rm 2->11         started        signatures3 process4 signatures5 35 Sample deletes itself 8->35 13 hold.mpsl.elf 8->13         started        process6 process7 15 hold.mpsl.elf 13->15         started        17 hold.mpsl.elf 13->17         started        19 hold.mpsl.elf 13->19         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f8a38e4f5a39c9d4ff3bfc10503d1d896ba72a2b73231037c569752b6d8a22f9
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f8a38e4f5a39c9d4ff3bfc10503d1d896ba72a2b73231037c569752b6d8a22f9/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-23 10:57:01 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7cry4t22hhe5j7z37qifapi5rfv2okrlomrran6fnf2sw3mkel4q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable defense_evasion discovery
Link:
https://tria.ge/reports/250124-fbnrys1phm/
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/3466a1bc-a2bf-40f1-b01c-b6c3006c0cf2
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/f8a38e4f5a39c9d4ff3bfc10503d1d896ba72a2b73231037c569752b6d8a22f9

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_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 f8a38e4f5a39c9d4ff3bfc10503d1d896ba72a2b73231037c569752b6d8a22f9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3405955/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3405919/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments