MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb576c4c8b071cac876b8e7dcb80519082f024d06b0bc23ccb7e4c29efd05068. 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: 11


Intelligence 11 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb576c4c8b071cac876b8e7dcb80519082f024d06b0bc23ccb7e4c29efd05068
SHA3-384 hash: 471601e7feee4e1df9458137f449cc01d30a6f3c356c644d7e0cfbb8dc6b8191730a69cbd62e018bc7b01a2423b786b9
SHA1 hash: f47f3a8ac03a8a78cda5ca4ee354b87b67c65043
MD5 hash: 842c1393cdff47b350c2afaae9c365a0
humanhash: magnesium-muppet-blue-sweet
File name:kt4
Download: download sample
Signature Mirai
Create hunting rule
File size:85'248 bytes
First seen:2025-05-07 03:44:17 UTC
Last seen:2025-05-07 20:20:41 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:JbhS/nIkcoyKmYYDOCtDB2b2xVIsiqmRszdA0Sr:a/8omYu/2b7yzdLSr
TLSH T14C835088FD55A76EC7E276FAE71806CE363E179CB3DA72219D310E5237C9F60A425120
telfhash t10131a16aff60278c17d9013542df741a0bfd34de1b2d2866d2ae3b4f59426c1b42d16b
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 :
3
# of downloads :
94
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-61.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Dropper.Mirai-7136070-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681ad810432e243ac3e4c843linux22vpnfull_triage
Tags:
mirai
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc
Link:
https://www.filescan.io/uploads/681ad74a0b64e174c41b211f/reports/8a59a37a-01ab-46b4-bb56-32b167d2d4f6/overview
Verdict:
Malicious
Uses P2P?:
true
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
8
Processes remaning?
true
Remote TCP ports scanned:
0,12761,35232,14240,9018,13111,23555,30603,48102,19251,44654,32592,11780,36136,41107,18680,17723,56190,20072,4014,22882,13218,52975,38749,14379,44117,29154,12123,24661,33552,63265,44191,2983,10962,53041,11181,9273,35439,11557,62177,64937,15005,13716,1762,16766,16881,15834,36932,8736,25265,5007,1250,35353,42727,3726,12695,22129,57080,14458,31584,17591,4854,65235,31557,45403,9069,50073,53068,59200,20977,11489,12177,51756,64021,48999,16628,37916,18762,22608,38669,40934,9142,59703,19894,60145,26187,22024,61284,55513,23907,33840,49377,40999,43815,1294,51344,31420,62963,6858,38102,34967,51922,63867,28604,45228,28771,21150,4789,57820,45474,20784,2010,23349,13400,44509,33712,6866,7782,25621,39866,18894,47161,31275,57821,32450,45677,3896,59096,14950,17640,26480,51967,30826,53095,59486,55466,42158,56914,14795,19536,11997,17363,42343,60388,56388,59672,55514,37826,38209,29818,61376,42000,15096,39668,33864,29640,36089,8955,42153,12795,55961,14147,53555,58188,17769,19444,7500,1135,27519,59491,33913,22989,53505,32360,11307,34293,34832,38710,28446,55289,19795,46226,45600,54836,8139,64581,21075,38003,46861,9744,31113,49516,7052,35609,30535,43763,60370,6513,39651,25703,29556,43758,16927,43716,3043,53656,62716,45857,33425,58676,22942,1867,38005,11901,48863,64988,12689,64345,36487,12224,3949,44610,6016,50406,57555,27381,41924,3976,42748,21369,9333,55134,62206,55706,62315,7747,6944,11615,50174,25314,22822,65264,11963,39140,37547,57073,55161,54830,12621,62253,19196,38020,61620,39303,47755,4430,1333,10830,60840,54232,11381,15294,12225,38765,9568,35605,50315,59484,47641,14074,61674,37646,54208,63714,16810,8289,48869,43712,44456,33910,48952,6218,37093,49427,32970,18421,58095,35883,25229,16150,23238,49772,10036,54003,2097,43377,1271,61643,63258,32003,53611,32201,19095,15693,51257,1004,59557,37237,41403,22405,65005,16103,62180,13234,11166,20484,42261,61702,57212,64558,19549,26780,9644,19092,31474,14574,55008,1742,62594,9684,40888,37717,52569,57553,60514,36499,29009,16847,13784,39047,963,52764,41154,37309,50430,26852,64023,57788,34656,34820,5137,32387,9447,4503,44845,56824,24167,8071,8255,7400,40149,27201,33326,35324,49229,37164,17771,53198,37591,48678,52812,47903,3329,19162,21001,22726,62498,51596,33245,16844,18643,6516,22400,59808,40041,51559,55028,594,44379,13330,2444,65472,29684,29552,56953,17104,6988,50184,14531,24766,47688,57341,54584,12580,5328,18017,37365,1418,205,21849,22016,60905,21761,933,54869,21180,37506,964,48361,47250,648,37321,30316
Full report:
https://elfdigest.com/brief/cb576c4c8b071cac876b8e7dcb80519082f024d06b0bc23ccb7e4c29efd05068
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9155ad6e-04ac-459e-ab6b-819fb4da098d
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1682876
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1682876 Sample: kt4.elf Startdate: 07/05/2025 Architecture: LINUX Score: 72 23 169.150.236.18, 0, 10074, 10216 SPIRITTEL-ASUS United States 2->23 25 109.202.202.202, 80 INIT7CH Switzerland 2->25 27 5 other IPs or domains 2->27 29 Malicious sample detected (through community Yara rule) 2->29 31 Antivirus / Scanner detection for submitted sample 2->31 33 Multi AV Scanner detection for submitted file 2->33 35 Yara detected Mirai 2->35 9 kt4.elf 2->9         started        11 dash rm 2->11         started        13 dash rm 2->13         started        signatures3 process4 process5 15 kt4.elf 9->15         started        process6 17 kt4.elf 15->17         started        19 kt4.elf 15->19         started        process7 21 kt4.elf 17->21         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/cb576c4c8b071cac876b8e7dcb80519082f024d06b0bc23ccb7e4c29efd05068
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb576c4c8b071cac876b8e7dcb80519082f024d06b0bc23ccb7e4c29efd05068/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-05-07 03:45:15 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=znlwytela4okzb3lrz64xacrscbpajgqnmf4epglpzgct36qkbua._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery
Link:
https://tria.ge/reports/250507-ea546sfl5y/
Behaviour
Changes its process name
Creates a large amount of network flows
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/cb576c4c8b071cac876b8e7dcb80519082f024d06b0bc23ccb7e4c29efd05068

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_d94e1020
Create hunting rule
Author:Elastic Security
Rule name:Linux_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
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 cb576c4c8b071cac876b8e7dcb80519082f024d06b0bc23ccb7e4c29efd05068

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3531157/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3532689/

Comments