MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bf1fbbd994e86b9419d03ba4e930e2367837952ce603cbbed1d71750718c7c4. 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: 4bf1fbbd994e86b9419d03ba4e930e2367837952ce603cbbed1d71750718c7c4
SHA3-384 hash: 6da295b0946deb921b1c573ff47fd403de005cd5bb8a0f857b2606b705dc0b4c010d3792104b8f8f9a0da753d1f7a5b1
SHA1 hash: 4cb651d5b16fd5b3cff4246b28679378c546aa20
MD5 hash: b4bb472fa8b01b19ff8ab5a6e46125f9
humanhash: berlin-muppet-undress-uranus
File name:b4bb472fa8b01b19ff8ab5a6e46125f9
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-19 18:38:17 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'033 x WannaCry, 6 x Worm.Virut, 2 x Expiro)
ssdeep 49152:znEQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnv:TnqPoBhz1aRxcSUDk36SAEdhv
Threatray 7 similar samples on MalwareBazaar
TLSH T14C363359717CD2FCD10919B404A7CA67A3F33C6A16FE6A0F8F4089661D13B19FBA0A43
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 :
271
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/291991/
Detection(s):
Win.Ransomware.Wanna-9769986-0
Create hunting rule

Win.Ransomware.Wannacryptor-9940180-0
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:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
67%
Tags:
cmd.exe CVE-2017-0147 encrypt eternalblue exploit greyware greyware overlay packed ransomware shell32.dll wanna wannacry wannacryptor wcry worm
Link:
https://www.filescan.io/uploads/62d6faa280dba4f80a2498d1/reports/2e0854a5-5d69-4d07-8546-5ae4c12aa4c3/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7b461e01-b182-46f2-acb3-6d94a0a5ea37
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1036778
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)
Detected Wannacry Ransomware
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 669274 Sample: ZlwDXbOWme Startdate: 19/07/2022 Architecture: WINDOWS Score: 100 60 Snort IDS alert for network traffic 2->60 62 Multi AV Scanner detection for domain / URL 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 7 other signatures 2->66 9 loaddll32.exe 1 2->9         started        11 mssecsvc.exe 2->11         started        15 svchost.exe 9 1 2->15         started        17 5 other processes 2->17 process3 dnsIp4 19 cmd.exe 1 9->19         started        21 rundll32.exe 9->21         started        24 rundll32.exe 1 9->24         started        52 192.168.2.120 unknown unknown 11->52 54 192.168.2.121 unknown unknown 11->54 56 99 other IPs or domains 11->56 84 Connects to many different private IPs via SMB (likely to spread or exploit) 11->84 86 Connects to many different private IPs (likely to spread or exploit) 11->86 signatures5 process6 file7 27 rundll32.exe 19->27         started        74 Drops executables to the windows directory (C:\Windows) and starts them 21->74 29 mssecsvc.exe 7 21->29         started        46 C:\Windows\mssecsvc.exe, PE32 24->46 dropped signatures8 process9 dnsIp10 34 mssecsvc.exe 7 27->34         started        58 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 29->58 48 C:\WINDOWS\qeriuwjhrf (copy), PE32 29->48 dropped 88 Drops executables to the windows directory (C:\Windows) and starts them 29->88 39 tasksche.exe 29->39         started        file11 signatures12 process13 dnsIp14 50 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 34->50 44 C:\Windows\tasksche.exe, PE32 34->44 dropped 68 Antivirus detection for dropped file 34->68 70 Multi AV Scanner detection for dropped file 34->70 72 Machine Learning detection for dropped file 34->72 41 tasksche.exe 34->41         started        file15 signatures16 process17 signatures18 76 Detected Wannacry Ransomware 41->76 78 Antivirus detection for dropped file 41->78 80 Multi AV Scanner detection for dropped file 41->80 82 Machine Learning detection for dropped file 41->82
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4bf1fbbd994e86b9419d03ba4e930e2367837952ce603cbbed1d71750718c7c4/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2019-05-11 17:35:48 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
37 of 41 (90.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jpy7xpmzj2dlsqm5ao5e5eyoentyg6kszzqdzo7ndvyxkbyyy7ca._file
Verdict:
malicious
Similar samples:
07c44729e2c570b37db695323249474831f5861d45318bf49ccf5d2f5c8ea1cd
WannaCry
268c5e3f3050d96c2fc80f38e7a81846bd799ba949d69f35bd2151e509189505
WannaCry
55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
WannaCry
773186144282a63cc3502ad10a3d8fd781a6c83eaabf06de4369b4ef96d93178
WannaCry
8f86b42241e81b7461ba45fde82505332e4578663fdd20c2723a99863c34ad67
WannaCry
ed492db95034ca288dd52df88e3ce3ec7b146ffd854a394ac187f0553ef966d9
WannaCry
Result
Malware family:
wannacry
Create hunting rule
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
Link:
https://tria.ge/reports/220719-xalpmshaap/
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 (1182) amount of remote hosts
Executes dropped EXE
Contacts a large (3094) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
4bf1fbbd994e86b9419d03ba4e930e2367837952ce603cbbed1d71750718c7c4
MD5 hash:
b4bb472fa8b01b19ff8ab5a6e46125f9
SHA1 hash:
4cb651d5b16fd5b3cff4246b28679378c546aa20
Link:
https://www.unpac.me/results/67287465-337e-4b65-8741-bb9aa49aa5fa/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
WanaCrypt0r
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4bf1fbbd994e86b9419d03ba4e930e2367837952ce603cbbed1d71750718c7c4

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/291991/

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