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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb906531e1ea9546e4df878394a50b9e679201c23a7ac59f69f5de2e6c0963a9. 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

SHA256 hash: fb906531e1ea9546e4df878394a50b9e679201c23a7ac59f69f5de2e6c0963a9
SHA3-384 hash: 0b577fbfcd02d6e11d155919a5fe3c19b175e76fa87cfacecc78b86ca86d1293e85074f8f3799e37faeb044f7682f6d3
SHA1 hash: d48ba36a7699596d169cab53165d0d69c3f3ab4f
MD5 hash: 1e4a4f54b53b3f7dc1910eab98c1ddb5
humanhash: uniform-nine-connecticut-seventeen
File name:fb906531e1ea9546e4df878394a50b9e679201c23a7ac59f69f5de2e6c0963a9
Download: download sample
Signature WannaCry
File size:5'267'459 bytes
First seen:2022-10-10 04:26:30 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'124 x WannaCry, 7 x Worm.Virut, 2 x Expiro)
ssdeep 49152:RnGMSPbcBVL1INRx+TSqTdX1HkQo6SAARdhnv:1GPoB91aRxcSUDk36SAEdhv
Threatray 937 similar samples on MalwareBazaar
TLSH T1FD3623A6717C90F8D205197084AB8A12F6B67C3E16FA2D0FDF408D792DA3F56B650B43
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 petikvx
Tags:dll Ransomware WannaCry

Intelligence


File Origin
# of uploads :
1
# of downloads :
546
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware greyware overlay packed packed ransomware wannacry worm
Result
Threat name:
Wannacry
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
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 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
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 719226 Sample: upCVNgNwCr.dll Startdate: 10/10/2022 Architecture: WINDOWS Score: 100 67 Snort IDS alert for network traffic 2->67 69 Multi AV Scanner detection for domain / URL 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 8 other signatures 2->73 8 loaddll32.exe 1 2->8         started        10 mssecsvr.exe 2->10         started        14 svchost.exe 2->14         started        16 8 other processes 2->16 process3 dnsIp4 18 cmd.exe 1 8->18         started        20 rundll32.exe 8->20         started        23 rundll32.exe 1 8->23         started        26 conhost.exe 8->26         started        61 82.71.86.28, 445 ZEN-ASZenInternet-UKGB United Kingdom 10->61 63 119.25.95.244, 445 ZAQJupiterTelecommunicationsCoLtdJP Japan 10->63 65 101 other IPs or domains 10->65 83 Connects to many different private IPs via SMB (likely to spread or exploit) 10->83 85 Connects to many different private IPs (likely to spread or exploit) 10->85 87 Changes security center settings (notifications, updates, antivirus, firewall) 14->87 28 MpCmdRun.exe 1 14->28         started        89 Query firmware table information (likely to detect VMs) 16->89 signatures5 process6 file7 30 rundll32.exe 18->30         started        75 Drops executables to the windows directory (C:\Windows) and starts them 20->75 32 mssecsvr.exe 7 20->32         started        45 C:\Windows\mssecsvr.exe, PE32 23->45 dropped 36 conhost.exe 28->36         started        signatures8 process9 dnsIp10 38 mssecsvr.exe 7 30->38         started        49 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 32->49 51 ww38.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 32->51 53 701602.parkingcrew.net 32->53 43 C:\WINDOWS\qeriuwjhrf (copy), PE32 32->43 dropped file11 process12 dnsIp13 55 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 38->55 57 ww38.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 38->57 59 701602.parkingcrew.net 38->59 47 C:\Windows\tasksche.exe, PE32 38->47 dropped 77 Antivirus detection for dropped file 38->77 79 Multi AV Scanner detection for dropped file 38->79 81 Machine Learning detection for dropped file 38->81 file14 signatures15
Threat name:
Win32.Ransomware.WannaCry
Status:
Malicious
First seen:
2018-02-04 12:50:03 UTC
File Type:
PE (Dll)
Extracted files:
3
AV detection:
24 of 26 (92.31%)
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
Drops file in Windows directory
Drops file in System32 directory
Creates a large amount of network flows
Contacts a large (983) amount of remote hosts
Executes dropped EXE
Contacts a large (3280) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
fb906531e1ea9546e4df878394a50b9e679201c23a7ac59f69f5de2e6c0963a9
MD5 hash:
1e4a4f54b53b3f7dc1910eab98c1ddb5
SHA1 hash:
d48ba36a7699596d169cab53165d0d69c3f3ab4f
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:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:WannaCry_Ransomware
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.

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