MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8957b95a412ba4a1f9b0d7f7ed8ec7655b8d62e92bdf19f892ade338e105071. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8957b95a412ba4a1f9b0d7f7ed8ec7655b8d62e92bdf19f892ade338e105071
SHA3-384 hash: a3df4a5189872e0b588075db604bdf522e9b3d0deb4c1e7fb85563a80654a363826bb0846d462359de7b975654296be2
SHA1 hash: bc6acd8c07278a66a26700eb369851336dc22646
MD5 hash: bd2a7af8e5f47c9962c89e0c55555de8
humanhash: maryland-skylark-glucose-washington
File name:yakov.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:49'112 bytes
First seen:2025-03-03 02:20:26 UTC
Last seen:2025-03-03 03:32:54 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:vu0Uuq71GZJoWQ2QSgwg0lggM7f0fFdT9q3UELMfYyHJ2wpDN/p0:vtfUGP5Q2QYll4c+LMfYoNy
TLSH T124230234D15F80B1F6111EF27977869EF6175DFA80DF012221364A64ACEB8CB7E6E046
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 elfdigest
Tags:mirai

Intelligence

File Origin
# of uploads :
4
# of downloads :
141
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999.27061.28752.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c51280c8d04e92a4be8523linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Runs as daemon
Receives data from a server
Sends data to a server
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade mirai packed upx
Link:
https://www.filescan.io/uploads/67c512253c5f644bd93f6575/reports/c49fd581-5b77-4038-a260-7c7e1683a5e7/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
176.65.134.62/bins
Number of open files:
0
Number of processes launched:
3
Processes remaning?
false
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/b8957b95a412ba4a1f9b0d7f7ed8ec7655b8d62e92bdf19f892ade338e105071
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c4841a03-62a8-494c-b515-3bf283e1586e
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1627671
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1627671 Sample: yakov.arm7.elf Startdate: 03/03/2025 Architecture: LINUX Score: 68 20 Malicious sample detected (through community Yara rule) 2->20 22 Multi AV Scanner detection for submitted file 2->22 24 Yara detected Mirai 2->24 26 Sample is packed with UPX 2->26 8 yakov.arm7.elf 2->8         started        process3 process4 10 yakov.arm7.elf 8->10         started        process5 12 yakov.arm7.elf 10->12         started        14 yakov.arm7.elf 10->14         started        16 yakov.arm7.elf 10->16         started        process6 18 yakov.arm7.elf 12->18         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b8957b95a412ba4a1f9b0d7f7ed8ec7655b8d62e92bdf19f892ade338e105071
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8957b95a412ba4a1f9b0d7f7ed8ec7655b8d62e92bdf19f892ade338e105071/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-03-03 05:27:32 UTC
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xckxxfneck5euh43bv7x5whmozk3rvrosk67dh4jflpdhdqqkbyq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/250303-cs4mysttc1/
Behaviour
Reads runtime system information
Modifies Watchdog functionality
Contacts a large (20761) amount of remote hosts
Creates a large amount of network flows
Mirai
Mirai family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e1e5e84c-349e-45f2-8931-91264b266f73
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/b8957b95a412ba4a1f9b0d7f7ed8ec7655b8d62e92bdf19f892ade338e105071

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf b8957b95a412ba4a1f9b0d7f7ed8ec7655b8d62e92bdf19f892ade338e105071

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3463855/
  
Delivery method
Distributed via web download

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