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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dfaf761e4fc7ba493df5e0d25d2aee2c2f000fd6c43df4acb3c9922fa94089d8. 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 8 File information Comments

SHA256 hash: dfaf761e4fc7ba493df5e0d25d2aee2c2f000fd6c43df4acb3c9922fa94089d8
SHA3-384 hash: 2d13df19af77db450cb1ce252c8860eb8e0869e969f5d7fe5b7581c7c716fbeb9b1ab8891ee6131b0e662ddabf161229
SHA1 hash: 5846f7a4beff0dc1fc712b006e51b0e96be1dbc4
MD5 hash: 1ee0a60a4a1e6bd08544054cec728d0e
humanhash: india-freddie-grey-magazine
File name:mbupload-6rdlxrvh.bin
Download: download sample
Signature WannaCry
File size:5'267'459 bytes
First seen:2026-10-19 11:15:31 UTC
Last seen:Never
File type:DLL dll
MIME type:application/vnd.microsoft.portable-executable
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'142 x WannaCry, 7 x Worm.Virut, 3 x Expiro)
ssdeep 24576:zbLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqT9:znAQqMSPbcBVQej/1INRx+TSqT9
TLSH T14A36235E717CD2BCC10A27756467CD67D6B33C5932B8AB0F8F448AA91C03759AFA4A03
TrID 39.7% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
21.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
8.3% (.EXE) Win64 Executable (generic) (6522/11/2)
6.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter wristhulk
Tags:dionaea dll honeypot WannaCry


Avatar
wristhulk
Captured by a Dionaea honeypot at an unknown time.

Intelligence


File Origin
# of uploads :
1
# of downloads :
236
Origin country :
US US
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
99.9%
Tags:
wannacry madi
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug cmd crypto lolbin masquerade microsoft_visual_cc overlay ransomware ransomware ransomware reconnaissance smb wannacryptor wannacryptor
Verdict:
Malicious
File Type:
dll x32
First seen:
2025-12-10T10:46:00Z UTC
Last seen:
2026-10-21T03:50:00Z UTC
Hits:
~100
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE Memory-Mapped (Dump)
Threat name:
Win32.Ransomware.WannaCry
Status:
Malicious
First seen:
2026-02-13 09:39:01 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
24 of 24 (100.00%)
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
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Drops file in Windows directory
Creates a large amount of network flows
Executes dropped EXE
Contacts a large (3355) amount of remote hosts
Family: Wannacry
Unpacked files
SH256 hash:
dfaf761e4fc7ba493df5e0d25d2aee2c2f000fd6c43df4acb3c9922fa94089d8
MD5 hash:
1ee0a60a4a1e6bd08544054cec728d0e
SHA1 hash:
5846f7a4beff0dc1fc712b006e51b0e96be1dbc4
Detections:
WannaCry ransomware_windows_wannacry SUSP_Imphash_Mar23_2 WannaCry_Ransomware
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: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
Rule name:WannaCry_Ransomware_Main
Author:Bristol Agri-Tech Solutions SOC
Description:Detects WannaCry ransomware main executable
Rule name:WIN_Malware_ACRStealer_ForgeAuto_1084c837_Extrait
Author:Marjoriefort
Description:Detects ACRStealer (pe, etat extrait)

File information


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

Web download

WannaCry

DLL dll dfaf761e4fc7ba493df5e0d25d2aee2c2f000fd6c43df4acb3c9922fa94089d8

(this sample)

  
Delivery method
Distributed via web download

Comments