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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66f1d8d65c041689a1c05c661794e44bab00a546fac687089bab07a556c859ce. 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


WannaCry


Vendor detections: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66f1d8d65c041689a1c05c661794e44bab00a546fac687089bab07a556c859ce
SHA3-384 hash: 7e82f6c22f8357d4866d6a9daaf89acda6b0f0d73a3e1db801c6261455b3c0ad11d2509feb81e6c86b92a7f964379bc3
SHA1 hash: 0e1170d4132d995d404b86772cf41b399aa967d4
MD5 hash: 2259ebf3658c2dd6ab1e53e3c23fad4d
humanhash: hot-lemon-xray-nine
File name:2259ebf3658c2dd6ab1e53e3c23fad4d
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 01:39:46 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'124 x WannaCry, 7 x Worm.Virut, 2 x Expiro)
ssdeep 24576:nbLgurgDdmMSirYbcMNgef0QeQjG/D8kIqRY:nnsEMSPbcBVQej/1
Threatray 78 similar samples on MalwareBazaar
TLSH T14636239A75AC60F8D1157374A4778A26A2B77C6D21BD9B0F9F808B210C03BA1FF54B53
TrID 38.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
20.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
13.0% (.EXE) Win64 Executable (generic) (10523/12/4)
8.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter openctibr
Tags:dll OpenCTI.BR Sandboxed WannaCry

Intelligence

File Origin
# of uploads :
1
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292193/
Detection(s):
Win.Ransomware.Wanna-9769986-0
Create hunting rule

Win.Ransomware.Wanacryptor-9942127-1
Create hunting rule

Win.Ransomware.WannaCry-6313787-0
Create hunting rule

Win.Malware.Djwy-6775897-0
Create hunting rule

Win.Ransomware.Wanna-6888027-0
Create hunting rule

Win.Ransomware.Wanna-6888334-0
Create hunting rule

Win.Malware.Djwy-6923377-0
Create hunting rule

Win.Exploit.Doublepulsar-7427328-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe greyware greyware overlay packed packed ransomware shell32.dll wanna wannacry worm
Link:
https://www.filescan.io/uploads/62d75d04b1b58ed7a17342a8/reports/8dd164c4-8f13-4747-ba4d-253d23ee6f4c/overview
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/081b7fdf-bd8c-4f8a-a1ca-58a7a5bf646a
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1038245
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Connects to many different private IPs (likely to spread or exploit)
Connects to many different private IPs via SMB (likely to spread or exploit)
Connects to many IPs within the same subnet mask (likely port scanning)
Drops executables to the windows directory (C:\Windows) and starts them
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Uses known network protocols on non-standard ports
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 670739 Sample: 47iZ3bW5NA Startdate: 21/07/2022 Architecture: WINDOWS Score: 100 55 Snort IDS alert for network traffic 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 8 other signatures 2->61 8 loaddll32.exe 1 2->8         started        10 mssecsvr.exe 2->10         started        14 svchost.exe 2->14         started        16 3 other processes 2->16 process3 dnsIp4 18 cmd.exe 1 8->18         started        20 rundll32.exe 8->20         started        23 rundll32.exe 1 8->23         started        47 23.254.128.10, 445, 50223 HOSTWINDSUS United States 10->47 49 23.254.128.11, 445 HOSTWINDSUS United States 10->49 51 99 other IPs or domains 10->51 71 Connects to many different private IPs via SMB (likely to spread or exploit) 10->71 73 Connects to many different private IPs (likely to spread or exploit) 10->73 signatures5 process6 file7 26 rundll32.exe 18->26         started        63 Drops executables to the windows directory (C:\Windows) and starts them 20->63 28 mssecsvr.exe 7 20->28         started        32 BackgroundTransferHost.exe 13 20->32         started        41 C:\Windows\mssecsvr.exe, PE32 23->41 dropped signatures8 process9 dnsIp10 34 mssecsvr.exe 7 26->34         started        53 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 28->53 43 C:\WINDOWS\qeriuwjhrf (copy), PE32 28->43 dropped file11 process12 dnsIp13 45 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 34->45 39 C:\Windows\tasksche.exe, PE32 34->39 dropped 65 Antivirus detection for dropped file 34->65 67 Multi AV Scanner detection for dropped file 34->67 69 Machine Learning detection for dropped file 34->69 file14 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/66f1d8d65c041689a1c05c661794e44bab00a546fac687089bab07a556c859ce/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-03-17 21:05:06 UTC
File Type:
PE (Dll)
Extracted files:
3
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m3y5rvs4aqlitioalrtbpfhejovqbjkg7ldioce3vmd2kvwilhha._file
Verdict:
malicious
Similar samples:
016b40a769d4d34da8cdf3bf08a166c3243b659c31c152d3c0899993a7aa8f07
WannaCry
2edd948b703c3249ba424930fe717825ce5c108423b54a4411f05ea77dfd43e9
WannaCry
3534ca1c2f0bc7f1e7bddd39d156a2cce00987ed4c22d2817680bfa5fc8ccdf0
WannaCry
36dc0aae52946e3f9530c53925301bb8dbfa8216291705d99ef913d55f6ec1c9
WannaCry
42315a334dcd8401dc3e60c6de48071029105f978aa100384ef78fc2f6c8bf0b
WannaCry
55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
WannaCry
59eee303cf6cbf5bc6019b07f3e49714cbcc8f98639b36d55a9e0289de456c91
WannaCry
9225232799b946c0b18e7270bb29a265e1985d6192c04114cec51fa7b34f11ff
WannaCry
9bcc416c7017a128e2d92abf1910684323599dd03778994080e0830570a9c42f
WannaCry
bfb00de090581b449c36d04734aaa3d62802fb1bee1d6a4c614cb0d58d1143fb
WannaCry
+ 68 additional samples on MalwareBazaar
Result
Malware family:
wannacry
Create hunting rule
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
Link:
https://tria.ge/reports/220720-b3kgdsagaj/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Drops file in System32 directory
Creates a large amount of network flows
Contacts a large (1123) amount of remote hosts
Executes dropped EXE
Contacts a large (3169) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
66f1d8d65c041689a1c05c661794e44bab00a546fac687089bab07a556c859ce
MD5 hash:
2259ebf3658c2dd6ab1e53e3c23fad4d
SHA1 hash:
0e1170d4132d995d404b86772cf41b399aa967d4
Link:
https://www.unpac.me/results/3d559265-2b71-4c15-808f-a96099bf75df/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/66f1d8d65c04/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/66f1d8d65c041689a1c05c661794e44bab00a546fac687089bab07a556c859ce

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:WannaCry_Ransomware
Create hunting rule
Author:Florian Roth (with the help of binar.ly)
Description:Detects WannaCry Ransomware
Reference:https://goo.gl/HG2j5T

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/292193/

Comments