MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 287889afcc2b86f6b705c55882880954e41f15ecbf3441980a567f8ff10605a3. 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: 287889afcc2b86f6b705c55882880954e41f15ecbf3441980a567f8ff10605a3
SHA3-384 hash: 49a481cd02bb3203ad0a28f4b647bb6b3796862d2005cd7d83f2feab9f3f39a3dd922e80fc20e86ec99bd510400d76de
SHA1 hash: e202d06dc9a3f2bcc8c24afba5e73238f03b2340
MD5 hash: 5d92803db88c63ce63015eca6ec5e75a
humanhash: triple-leopard-friend-yellow
File name:5d92803db88c63ce63015eca6ec5e75a
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 00:20:35 UTC
Last seen:2022-07-20 00:21:07 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'033 x WannaCry, 6 x Worm.Virut, 2 x Expiro)
ssdeep 49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAii0UM/9:+DqPoBhz1aRxcSUDk36SA3ic
Threatray 26 similar samples on MalwareBazaar
TLSH T1B2365A06E1D51A60D6F30EB6227B9714473E6F30995EA25E1621F04A2C73F4CDDE2F2A
TrID 33.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
17.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
14.0% (.SCR) Windows screen saver (13101/52/3)
11.2% (.EXE) Win64 Executable (generic) (10523/12/4)
7.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter openctibr
Tags:dll OpenCTI.BR Sandboxed

Intelligence

File Origin
# of uploads :
2
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292057/
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.Malware.Djwy-6777153-0
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:

Behaviour
Sending a custom TCP request
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/62d74ab38fbcdde3605e826a/reports/5dbab950-0b03-4827-83a7-5d540b03ac6e/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/37a10700-6655-42cf-aad5-c86b574ffd2a
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1036917
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
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 dnsIp2 2 Behavior Graph ID: 669411 Sample: A4u875JLt3 Startdate: 20/07/2022 Architecture: WINDOWS Score: 100 57 time.windows.com 2->57 69 Tries to download HTTP data from a sinkholed server 2->69 71 Snort IDS alert for network traffic 2->71 73 Multi AV Scanner detection for domain / URL 2->73 75 7 other signatures 2->75 10 loaddll32.exe 1 2->10         started        12 mssecsvc.exe 2->12         started        16 svchost.exe 2->16         started        18 13 other processes 2->18 signatures3 process4 dnsIp5 20 cmd.exe 1 10->20         started        22 rundll32.exe 10->22         started        25 rundll32.exe 1 10->25         started        61 192.168.2.120 unknown unknown 12->61 63 192.168.2.121 unknown unknown 12->63 65 98 other IPs or domains 12->65 85 Connects to many different private IPs via SMB (likely to spread or exploit) 12->85 87 Connects to many different private IPs (likely to spread or exploit) 12->87 89 Changes security center settings (notifications, updates, antivirus, firewall) 16->89 28 MpCmdRun.exe 1 16->28         started        signatures6 process7 file8 30 rundll32.exe 20->30         started        77 Drops executables to the windows directory (C:\Windows) and starts them 22->77 32 mssecsvc.exe 7 22->32         started        53 C:\Windows\mssecsvc.exe, PE32 25->53 dropped 37 conhost.exe 28->37         started        signatures9 process10 dnsIp11 39 mssecsvc.exe 7 30->39         started        55 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 32->55 49 C:\WINDOWS\qeriuwjhrf (copy), PE32 32->49 dropped 67 Drops executables to the windows directory (C:\Windows) and starts them 32->67 44 tasksche.exe 32->44         started        file12 signatures13 process14 dnsIp15 59 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 104.17.244.81, 49743, 80 CLOUDFLARENETUS United States 39->59 51 C:\Windows\tasksche.exe, PE32 39->51 dropped 79 Antivirus detection for dropped file 39->79 81 Multi AV Scanner detection for dropped file 39->81 83 Machine Learning detection for dropped file 39->83 46 tasksche.exe 39->46         started        file16 signatures17 process18 signatures19 91 Detected Wannacry Ransomware 46->91 93 Antivirus detection for dropped file 46->93 95 Multi AV Scanner detection for dropped file 46->95 97 Machine Learning detection for dropped file 46->97
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/287889afcc2b86f6b705c55882880954e41f15ecbf3441980a567f8ff10605a3/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2017-08-07 17:55:48 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fb4itl6mfodpnnyfyvmifcajktsb6fpmx42edgakkz7y74igawrq._file
Verdict:
malicious
Similar samples:
138887bdba248dab37aaa98cf2d7f06445b8018a24a9a2ffeb70da5a1d1be038
WannaCry
268c5e3f3050d96c2fc80f38e7a81846bd799ba949d69f35bd2151e509189505
WannaCry
4bf1fbbd994e86b9419d03ba4e930e2367837952ce603cbbed1d71750718c7c4
WannaCry
55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
WannaCry
59eee303cf6cbf5bc6019b07f3e49714cbcc8f98639b36d55a9e0289de456c91
WannaCry
8f86b42241e81b7461ba45fde82505332e4578663fdd20c2723a99863c34ad67
WannaCry
8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021
WannaCry
c74d4c435684c89f0f3ca6f18e75c3c2ae6f306ebb352d4246261650f15ef69a
WannaCry
fdca1e0c8951ddfbea1f9a4fbdd44aff52f3608396788add49b99c3f0b482e09
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-ancybshfh9/
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 (1254) amount of remote hosts
Executes dropped EXE
Contacts a large (3331) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
287889afcc2b86f6b705c55882880954e41f15ecbf3441980a567f8ff10605a3
MD5 hash:
5d92803db88c63ce63015eca6ec5e75a
SHA1 hash:
e202d06dc9a3f2bcc8c24afba5e73238f03b2340
Link:
https://www.unpac.me/results/7513d648-e057-4420-8542-11c7ddbed0aa/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/287889afcc2b/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/287889afcc2b86f6b705c55882880954e41f15ecbf3441980a567f8ff10605a3

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/292057/

Comments