MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021
SHA3-384 hash: dd44f6ead63130984610cbe9a5a738278b7343fe71d2b427b15cf500d766511b054d68ede2404f1b47d3cadc8ef9f6f9
SHA1 hash: 679b5cf2405c6952c74ac89e8d397bb328562c50
MD5 hash: e08433353038ad755bf8b3abbc2c7bad
humanhash: lake-sad-uranus-summer
File name:e08433353038ad755bf8b3abbc2c7bad
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 00:13:59 UTC
Last seen:2022-07-20 00:14:50 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'033 x WannaCry, 6 x Worm.Virut, 2 x Expiro)
ssdeep 24576:SbLgddQhfdmMSirYbcMNgef0QeQvNZtA0p+9XEk:SnAQqMSPbcBVQe4lAH
Threatray 26 similar samples on MalwareBazaar
TLSH T135362319357C90FCD05A427864A7496AB6F33C5E6279970F9F84CB660C23780FFA8B46
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 :
2
# of downloads :
203
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292052/
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-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:
100%
Tags:
cmd.exe greyware greyware overlay packed ransomware shell32.dll wanna wannacry worm
Link:
https://www.filescan.io/uploads/62d74953b55643c0386ed7d0/reports/e3564056-839c-46d4-881c-5a267e62ec0e/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/9195f6c0-4cd7-4c1e-a138-29cfabf1fb54
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1036911
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)
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
Query firmware table information (likely to detect VMs)
Snort IDS alert for network traffic
Tries to download HTTP data from a sinkholed server
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 669405 Sample: tDpT5vg3bO Startdate: 20/07/2022 Architecture: WINDOWS Score: 100 66 Tries to download HTTP data from a sinkholed server 2->66 68 Snort IDS alert for network traffic 2->68 70 Multi AV Scanner detection for domain / URL 2->70 72 7 other signatures 2->72 9 loaddll32.exe 1 2->9         started        11 mssecsvc.exe 2->11         started        15 svchost.exe 2->15         started        17 11 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        56 192.168.2.120 unknown unknown 11->56 58 192.168.2.121 unknown unknown 11->58 60 98 other IPs or domains 11->60 82 Connects to many different private IPs via SMB (likely to spread or exploit) 11->82 84 Connects to many different private IPs (likely to spread or exploit) 11->84 86 Changes security center settings (notifications, updates, antivirus, firewall) 15->86 27 MpCmdRun.exe 1 15->27         started        88 Query firmware table information (likely to detect VMs) 17->88 signatures5 process6 file7 29 rundll32.exe 19->29         started        74 Drops executables to the windows directory (C:\Windows) and starts them 21->74 31 mssecsvc.exe 7 21->31         started        52 C:\Windows\mssecsvc.exe, PE32 24->52 dropped 36 conhost.exe 27->36         started        signatures8 process9 dnsIp10 38 mssecsvc.exe 7 29->38         started        62 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 31->62 48 C:\WINDOWS\qeriuwjhrf (copy), PE32 31->48 dropped 64 Drops executables to the windows directory (C:\Windows) and starts them 31->64 43 tasksche.exe 31->43         started        file11 signatures12 process13 dnsIp14 54 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 104.17.244.81, 49742, 49761, 80 CLOUDFLARENETUS United States 38->54 50 C:\Windows\tasksche.exe, PE32 38->50 dropped 76 Antivirus detection for dropped file 38->76 78 Multi AV Scanner detection for dropped file 38->78 80 Machine Learning detection for dropped file 38->80 45 tasksche.exe 38->45         started        file15 signatures16 process17 signatures18 90 Detected Wannacry Ransomware 45->90 92 Antivirus detection for dropped file 45->92 94 Multi AV Scanner detection for dropped file 45->94 96 Machine Learning detection for dropped file 45->96
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-03-03 14:00:17 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
27 of 30 (90.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r7f4qcvgymfz2sr2mqcowlkzggdmkdufuzvkqrai2s3abuu72aqq._file
Verdict:
malicious
Similar samples:
04f468bec220fa9dfd4897adf86f28f8ceb04a72806c473cd22e366f716389a3
WannaCry
07c44729e2c570b37db695323249474831f5861d45318bf49ccf5d2f5c8ea1cd
WannaCry
268c5e3f3050d96c2fc80f38e7a81846bd799ba949d69f35bd2151e509189505
WannaCry
55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
WannaCry
59eee303cf6cbf5bc6019b07f3e49714cbcc8f98639b36d55a9e0289de456c91
WannaCry
9225232799b946c0b18e7270bb29a265e1985d6192c04114cec51fa7b34f11ff
WannaCry
95f9847e020b97c1a3bc47d33c15da892958bb76c95153696eda1f13e454ddf5
WannaCry
a10c266793dc6e62ee6947981991c736383eaacad5cfc028aad1f16748b83a25
WannaCry
d6cb63f23b784915ebd8ac1b195c46251fa1241b324beb99a61d7c4ba27ea99b
WannaCry
eceb2f25bac4cbca1da5f4e390124912cd91f541ad1ccada2ae2b46f4aceb414
WannaCry
+ 16 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-ajbvgahff2/
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 (1267) amount of remote hosts
Executes dropped EXE
Contacts a large (2914) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021
MD5 hash:
e08433353038ad755bf8b3abbc2c7bad
SHA1 hash:
679b5cf2405c6952c74ac89e8d397bb328562c50
Link:
https://www.unpac.me/results/0b1e070a-0329-4047-9cb0-9c12b7ddbc43/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8fcbc80aa6c3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021

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/292052/

Comments