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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8341e1a458c6743ce9ea78a02d2eb09b02c03cddc5d133c0651c935df364bddc. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments

SHA256 hash: 8341e1a458c6743ce9ea78a02d2eb09b02c03cddc5d133c0651c935df364bddc
SHA3-384 hash: 65702ce0d228c67654c5a68fd7a8c492381bb00954d18d9db621f78b39a5b8367b6a353b5802e46dc1be9a0c91b3b9c1
SHA1 hash: 9cee44ee0fa5b7ec44a1d9f89c2ec94de4a0d6d1
MD5 hash: e6e0c99aa8e0f93a62501f7dec11f6a0
humanhash: fruit-whiskey-shade-failed
File name:2023-04-27_e6e0c99aa8e0f93a62501f7dec11f6a0_wannacry
Download: download sample
Signature WannaCry
File size:3'723'264 bytes
First seen:2023-04-28 20:16:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9ecee117164e0b870a53dd187cdd7174 (82 x WannaCry, 1 x Worm.Virut)
ssdeep 49152:XnAQqMSPbcBVqxJM0H93ei6Om3MOurnjRDyQnh++LzdHg:XDqPoB8xWa93z6Om3MOujtDZnhf/Bg
Threatray 1'035 similar samples on MalwareBazaar
TLSH T19706CF638AC650EED51B34F1296B792FD1FDBA1490299B9FC28C1D075B80C31B79F286
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) (10523/12/4)
7.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter petikvx
Tags:WannaCry

Intelligence


File Origin
# of uploads :
1
# of downloads :
285
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
wannacry
ID:
1
File name:
2023-04-27_e6e0c99aa8e0f93a62501f7dec11f6a0_wannacry
Verdict:
Malicious activity
Analysis date:
2023-04-28 20:22:01 UTC
Tags:
ransomware wannacry trojan

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a service
Launching a service
Searching for synchronization primitives
Sending a custom TCP request
Query of malicious DNS domain
Enabling autorun for a service
Forced shutdown of a system process
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe greyware packed ransomware shell32.dll wanna 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)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 856241 Sample: Fn0ldcwYp5.exe Startdate: 29/04/2023 Architecture: WINDOWS Score: 100 35 Tries to download HTTP data from a sinkholed server 2->35 37 Snort IDS alert for network traffic 2->37 39 Multi AV Scanner detection for domain / URL 2->39 41 6 other signatures 2->41 7 Fn0ldcwYp5.exe 7 2->7         started        12 Fn0ldcwYp5.exe 2->12         started        14 svchost.exe 2->14         started        16 8 other processes 2->16 process3 dnsIp4 27 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 7->27 25 C:\Windows\tasksche.exe, PE32 7->25 dropped 51 Drops executables to the windows directory (C:\Windows) and starts them 7->51 18 tasksche.exe 7->18         started        29 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 12->29 31 158.233.228.124, 445 WHO-ASEU Sweden 12->31 33 99 other IPs or domains 12->33 53 Connects to many different private IPs via SMB (likely to spread or exploit) 12->53 55 Connects to many different private IPs (likely to spread or exploit) 12->55 57 Changes security center settings (notifications, updates, antivirus, firewall) 14->57 21 MpCmdRun.exe 1 14->21         started        59 Query firmware table information (likely to detect VMs) 16->59 file5 signatures6 process7 signatures8 43 Detected Wannacry Ransomware 18->43 45 Antivirus detection for dropped file 18->45 47 Multi AV Scanner detection for dropped file 18->47 49 Machine Learning detection for dropped file 18->49 23 conhost.exe 21->23         started        process9
Threat name:
Win32.Ransomware.WannaCry
Status:
Malicious
First seen:
2023-04-26 04:33:00 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
22 of 22 (100.00%)
Threat level:
  5/5
Result
Malware family:
wannacry
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
Behaviour
Modifies data under HKEY_USERS
Drops file in Windows directory
Drops file in System32 directory
Creates a large amount of network flows
Executes dropped EXE
Contacts a large (1534) amount of remote hosts
Contacts a large (3287) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
8341e1a458c6743ce9ea78a02d2eb09b02c03cddc5d133c0651c935df364bddc
MD5 hash:
e6e0c99aa8e0f93a62501f7dec11f6a0
SHA1 hash:
9cee44ee0fa5b7ec44a1d9f89c2ec94de4a0d6d1
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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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 (Nextron Systems) (with the help of binar.ly)
Description:Detects WannaCry Ransomware
Reference:https://goo.gl/HG2j5T
Rule name:WannaCry_Ransomware_Gen
Author:Florian Roth (Nextron Systems) (based on rule by US CERT)
Description:Detects WannaCry Ransomware
Reference:https://www.us-cert.gov/ncas/alerts/TA17-132A
Rule name:WannaCry_Ransomware_Gen_RID302B
Author:Florian Roth (based on rule by US CERT)
Description:Detects WannaCry Ransomware
Reference:https://www.us-cert.gov/ncas/alerts/TA17-132A
Rule name:Win32_Ransomware_WannaCry
Author:ReversingLabs
Description:Yara rule that detects WannaCry ransomware.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments