MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0ef3e12c837bd305c71966452aa170f20d4c3756a13308935a984e82bb76cc8b. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0ef3e12c837bd305c71966452aa170f20d4c3756a13308935a984e82bb76cc8b
SHA3-384 hash: c0be47484c3bfc529208a9b663b15e806796f00fccf2855740a39bf094185721176a8ed575d4dbef20cc36b1feaa36d3
SHA1 hash: 7400dbe5c6542ab39b442a8b980eb3927a4b26b9
MD5 hash: df700ef9aeaee03255fb66a57c2609c7
humanhash: california-white-cold-mars
File name:df700ef9aeaee03255fb66a57c2609c7
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 01:23:18 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'121 x WannaCry, 7 x Worm.Virut, 2 x Expiro)
ssdeep 49152:RnvMSPbcBVQej/hINRx+TSqTdX1HkQo6SAARdhnv:1vPoBhzhaRxcSUDk36SAEdhv
Threatray 96 similar samples on MalwareBazaar
TLSH T1413623AA70AC80F8D205297484AB8E53B7F27C7A21FA690FEF4049752D53F56F750742
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292164/
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:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
80%
Tags:
greyware greyware overlay packed packed ransomware wannacry worm
Link:
https://www.filescan.io/uploads/62d75977b1b58ed7a1733c36/reports/600c4442-af46-41b2-b98f-e70488d9ece9/overview
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c4305b1c-1319-49ab-bef3-651b2dcea515
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1036964
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Changes security center settings (notifications, updates, antivirus, firewall)
Connects to many different private IPs (likely to spread or exploit)
Connects to many different private IPs via SMB (likely to spread or exploit)
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
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 669458 Sample: 6ce60BRu3n Startdate: 20/07/2022 Architecture: WINDOWS Score: 100 45 time.windows.com 2->45 57 Snort IDS alert for network traffic 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 63 6 other signatures 2->63 9 loaddll32.exe 1 2->9         started        11 mssecsvr.exe 2->11         started        15 svchost.exe 2->15         started        17 12 other processes 2->17 signatures3 process4 dnsIp5 19 cmd.exe 1 9->19         started        21 rundll32.exe 9->21         started        24 rundll32.exe 1 9->24         started        49 192.168.2.120 unknown unknown 11->49 51 192.168.2.121 unknown unknown 11->51 53 99 other IPs or domains 11->53 73 Connects to many different private IPs via SMB (likely to spread or exploit) 11->73 75 Connects to many different private IPs (likely to spread or exploit) 11->75 77 Changes security center settings (notifications, updates, antivirus, firewall) 15->77 27 MpCmdRun.exe 1 15->27         started        signatures6 process7 file8 29 rundll32.exe 19->29         started        65 Drops executables to the windows directory (C:\Windows) and starts them 21->65 31 mssecsvr.exe 7 21->31         started        43 C:\Windows\mssecsvr.exe, PE32 24->43 dropped 35 conhost.exe 27->35         started        signatures9 process10 dnsIp11 37 mssecsvr.exe 7 29->37         started        55 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 31->55 41 C:\Windows\tasksche.exe, PE32 31->41 dropped file12 process13 dnsIp14 47 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 37->47 67 Antivirus detection for dropped file 37->67 69 Multi AV Scanner detection for dropped file 37->69 71 Machine Learning detection for dropped file 37->71 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0ef3e12c837bd305c71966452aa170f20d4c3756a13308935a984e82bb76cc8b/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-02-18 12:40:07 UTC
File Type:
PE (Dll)
Extracted files:
3
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=b3z6cledppjqlryzmzcsvilq6iguyn2wuezqre22tbhifo3wzsfq._file
Verdict:
malicious
Similar samples:
268c5e3f3050d96c2fc80f38e7a81846bd799ba949d69f35bd2151e509189505
WannaCry
4bf1fbbd994e86b9419d03ba4e930e2367837952ce603cbbed1d71750718c7c4
WannaCry
508ac09bc0990461f0499764b97ef6e8e720ca8db6b8ebd54f105863cfc9c6d3
WannaCry
749eaa7de1b56feff6b790d65516822326f56ecff68bb7ce14ce410a4fe24646
WannaCry
8f86b42241e81b7461ba45fde82505332e4578663fdd20c2723a99863c34ad67
WannaCry
9225232799b946c0b18e7270bb29a265e1985d6192c04114cec51fa7b34f11ff
WannaCry
c74d4c435684c89f0f3ca6f18e75c3c2ae6f306ebb352d4246261650f15ef69a
WannaCry
f3725409760ef8ef3b1296cbc32a06fb0177cfaedda0825bcbb41146db347061
WannaCry
f609bb63acb1c6d1ee19574550f83bb796af5ece4cab54a70f97534e8b1c478f
WannaCry
+ 86 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-bsdabsafbk/
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 (1235) amount of remote hosts
Executes dropped EXE
Contacts a large (3289) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
0ef3e12c837bd305c71966452aa170f20d4c3756a13308935a984e82bb76cc8b
MD5 hash:
df700ef9aeaee03255fb66a57c2609c7
SHA1 hash:
7400dbe5c6542ab39b442a8b980eb3927a4b26b9
Link:
https://www.unpac.me/results/06aa1429-09d9-4b03-88f2-5b6ecd266c27/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0ef3e12c837b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/0ef3e12c837bd305c71966452aa170f20d4c3756a13308935a984e82bb76cc8b

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: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/292164/

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