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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca66d96b074b784b8a3cbd9492053e56e2cb630ed1a929cfc94f412d7a54cc40. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments

SHA256 hash: ca66d96b074b784b8a3cbd9492053e56e2cb630ed1a929cfc94f412d7a54cc40
SHA3-384 hash: 7b9a46eb03f798a04377314ea111f32cb3cfd0e20dc14606d612571f3d7c7de8a55d2136dc58e5b1885487be21f3568c
SHA1 hash: c158a7bd3d82c0aaa120acb1b1071c61eabf07d4
MD5 hash: 719e3211a56696c1eaaece793d90b064
humanhash: idaho-hydrogen-ten-fix
File name:ca66d96b074b784b8a3cbd9492053e56e2cb630ed1a929cfc94f412d7a54cc40
Download: download sample
Signature WannaCry
File size:5'267'459 bytes
First seen:2026-01-04 07:48:18 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 49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:+DqPoBhz1aRxcSUDk36SAEdhvxWa9
Threatray 1'296 similar samples on MalwareBazaar
TLSH T129365A01D1E51AA0D9F20AF726BADB10933E6F45995BA66E1222510F0C77F0CDDE6F2C
TrID 37.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
20.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
12.7% (.EXE) Win64 Executable (generic) (10522/11/4)
7.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter Butter1
Tags:dll eternalblue honeypot SMB WannaCry

Intelligence


File Origin
# of uploads :
1
# of downloads :
159
Origin country :
AU AU
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
99.9%
Tags:
wannacry madi
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto lolbin microsoft_visual_cc overlay ransomware ransomware smb wannacry wannacry
Verdict:
Malicious
File Type:
dll x32
First seen:
2018-05-29T04:52:00Z UTC
Last seen:
2018-05-29T08:01:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Win32.EquationDrug.gen HEUR:Trojan-Ransom.Win32.Wanna.a Trojan-Ransom.Win32.Wanna.m Trojan.Win32.Eb.f Trojan.Win32.Eb.a HEUR:Worm.Win32.Generic HEUR:Trojan-Ransom.Win32.Wanna.gen HEUR:Trojan.Win32.Generic HEUR:Exploit.Win32.MS17-010.gen Trojan-Ransom.Win32.Wanna.zbu Trojan-Ransom.Win32.Wanna.sb Trojan.Win32.EquationDrug.sb Trojan.Win32.Eb.b
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE Memory-Mapped (Dump)
Threat name:
Win32.Ransomware.WannaCry
Status:
Malicious
First seen:
2018-05-29 07:36:03 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
34 of 36 (94.44%)
Threat level:
  5/5
Result
Malware family:
wannacry
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
Behaviour
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Creates a large amount of network flows
Executes dropped EXE
Contacts a large (3268) amount of remote hosts
Wannacry
Wannacry family
Unpacked files
SH256 hash:
ca66d96b074b784b8a3cbd9492053e56e2cb630ed1a929cfc94f412d7a54cc40
MD5 hash:
719e3211a56696c1eaaece793d90b064
SHA1 hash:
c158a7bd3d82c0aaa120acb1b1071c61eabf07d4
Detections:
WannaCry
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Armadillov1xxv2xx
Author:malware-lu
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:NET
Author:malware-lu
Rule name:SUSP_Imphash_Mar23_2
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Zero hits with with search for 'imphash:x p:0' on Virustotal)
Reference:Internal Research
Rule name:WannaCry_Ransomware
Author:Florian Roth (Nextron Systems) (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.

  
Delivery method
Other

Comments