MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1fb1b346d56ed3d31ad48b5883aa7d80c4b93bc0102686cf56d976be412fe53f. 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 14 File information Comments

SHA256 hash:	1fb1b346d56ed3d31ad48b5883aa7d80c4b93bc0102686cf56d976be412fe53f
SHA3-384 hash:	24d22e5fbde38266bf44e299e791aa55eb361dc11095b7f0a88c14f73b78bf7bf06122f8820b4ec110e673027582b70e
SHA1 hash:	548fddf476dcc8e5e454c3aefc93b971d5fbcae9
MD5 hash:	761f81925b4d559b5f5562bbbd1a82ef
humanhash:	timing-sixteen-wolfram-whiskey
File name:	1fb1b346d56ed3d31ad48b5883aa7d80c4b93bc0102686cf56d976be412fe53f
Download:	download sample
Signature	WannaCry Create hunting rule
File size:	5'267'459 bytes
First seen:	2026-01-04 07:17:35 UTC
Last seen:	Never
File type:	dll
MIME type:	application/x-dosexec
imphash	2e5708ae5fed0403e8117c645fb23e5b (1'124 x WannaCry, 7 x Worm.Virut, 2 x Expiro)
ssdeep	49152:znAQqMSPbcBVQej/1INRx+TSqTdX1HkQ7ZCEau3R8yAH1plAH:TDqPoBhz1aRxcSUDk63R8yAVp2H
Threatray	798 similar samples on MalwareBazaar
TLSH	T12436128D6B94966CE2050230289347A576B5E4BC13BADF873FE8F2642FD23D36E95740
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 :

# of downloads :

132

Origin country :

Vendor Threat Intelligence

No detections

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/47424/

Detection(s):

Win.Ransomware.Wanna-9769986-0

Win.Ransomware.Wannacryptor-9940180-0

Win.Ransomware.Wanacryptor-9942127-1

Win.Ransomware.Wannacry-9982112-0

Win.Ransomware.WannaCry-10011460-0

Win.Ransomware.WannaCry-6313787-0

Win.Malware.Djwy-6775897-0

Win.Ransomware.Wanna-6888027-0

Win.Ransomware.Wanna-6888334-0

Win.Malware.Djwy-6923377-0

BC.Win.Exploit.Exe_With_CVE_2017_0147-6316126-2

Win.Exploit.Doublepulsar-7427328-0

SecuriteInfo.com.Trojan.DownLoader46.24199.UNOFFICIAL

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=695a143dd2357cccc3df387c

Tags:

wannacry madi

Result

Verdict:

Malware

Maliciousness:

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

cmd crypto CVE-2017-0147 eternalblue evasive exploit lolbin microsoft_visual_cc overlay overlay ransomware smb unsafe wanna wannacry wannacry wannacrypt wannacryptor wcry

Link:

https://www.filescan.io/uploads/695a1434148c21e830eff992/reports/b4fb9692-b983-441a-a2dd-fb494bc1ecef/overview

Verdict:

Malicious

Labled as:

CVE-2017-0147

Link:

https://www.hybrid-analysis.com/sample/1fb1b346d56ed3d31ad48b5883aa7d80c4b93bc0102686cf56d976be412fe53f

Verdict:

Malicious

File Type:

dll x32

First seen:

2017-11-18T21:06:00Z UTC

Last seen:

2017-11-19T09:18:00Z UTC

Hits:

~10

Detections:

HEUR:Trojan-Ransom.Win32.Wanna.gen HEUR:Exploit.Win32.MS17-010.gen Exploit.Win32.BypassUAC.sb HEUR:Trojan-Ransom.Win32.Wanna.a Trojan-Ransom.Win32.Wanna.zbu Trojan-Ransom.Win32.Wanna.sb Trojan.Win32.Eb.b Trojan.Win32.Eb.a HEUR:Worm.Win32.Generic HEUR:Trojan.Win32.Generic HEUR:Trojan.Win32.EquationDrug.gen Trojan-Ransom.Win32.Wanna.m Trojan.Win32.EquationDrug.sb

Link:

https://opentip.kaspersky.com/1fb1b346d56ed3d31ad48b5883aa7d80c4b93bc0102686cf56d976be412fe53f/results?tab=lookup

Malware family:

Mimikatz

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/13c0fe0b-478d-4070-9e59-1432dae99e72

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/1fb1b346d56ed3d31ad48b5883aa7d80c4b93bc0102686cf56d976be412fe53f

Verdict:

inconclusive

YARA:

5 match(es)

Tags:

Executable PE (Portable Executable) PE Memory-Mapped (Dump)

Link:

https://app.malva.re/file/761f81925b4d559b5f5562bbbd1a82ef

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/1fb1b346d56ed3d31ad48b5883aa7d80c4b93bc0102686cf56d976be412fe53f/

Verdict:

Malicious

Threat:

Family.WANNACRY

Link:

https://tip.neiki.dev/file/1fb1b346d56ed3d31ad48b5883aa7d80c4b93bc0102686cf56d976be412fe53f

Threat name:

Win32.Ransomware.WannaCry

Status:

Malicious

First seen:

2017-11-17 03:35:05 UTC

File Type:

PE (Dll)

Extracted files:

AV detection:

34 of 36 (94.44%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=d6y3grwvn3j5ggwurnmihkt5qdclso6acatint2w3f3l4qjp4u7q._file

Verdict:

malicious

Label(s):

wannacryptor

Result

Malware family:

wannacry

Score:

10/10

Tags:

family:wannacry discovery ransomware worm

Link:

https://tria.ge/reports/260106-kmr1zaylfn/

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:

1fb1b346d56ed3d31ad48b5883aa7d80c4b93bc0102686cf56d976be412fe53f

MD5 hash:

761f81925b4d559b5f5562bbbd1a82ef

SHA1 hash:

548fddf476dcc8e5e454c3aefc93b971d5fbcae9

Detections:

WannaCry

Link:

https://www.unpac.me/results/30cb01aa-f4e6-4c05-958c-cbe047383bc7/

Malware family:

WannaCry

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/1fb1b346d56e/report/overview.html

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 Create hunting rule
Author:	malware-lu

Rule name:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer Create hunting rule
Author:	ditekSHen
Description:	detects Windows exceutables potentially bypassing UAC using eventvwr.exe

Rule name:	malware_shellcode_hash Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect shellcode api hash value

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	Suspicious_Process Create hunting rule
Author:	Security Research Team
Description:	Suspicious process creation

Rule name:	SUSP_Imphash_Mar23_2 Create hunting rule
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:	Sus_All_Windows_PE_Malware Create hunting rule
Author:	DiegoAnalytics
Description:	Detects Windows PE malware of all types, avoids non-executables like .html

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

Rule name:	WannaCry_Ransomware Create hunting rule
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

Cape

https://www.capesandbox.com/analysis/47424/

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