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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a65859a5a42c69436645d519f05ecff47345cc444615e486960af7e5d4a2ae22. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a65859a5a42c69436645d519f05ecff47345cc444615e486960af7e5d4a2ae22
SHA3-384 hash: 07e2594d8fdab85dd1cbe3592baaef6cbfcc68d41c605175359f9ea25fed308a95be5245b69bf05d9f4f9ad1b53b3117
SHA1 hash: f0ff2bc9340f8ef7eaf737a2c6f9f3a461b22c80
MD5 hash: 25a530e8998f901112666bbfcede0b06
humanhash: nuts-lion-mobile-lactose
File name:25a530e8998f901112666bbfcede0b06
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-23 05:46:59 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 24576:RbLgurgQhfdmMSirYbcMNgef0wQjGGk+:RnsQqMSPbcBVwjs
Threatray 508 similar samples on MalwareBazaar
TLSH T185362385766C91F8C10A66B5E4338916B7B37CAE22FD960FAB508A210C13790FF64F57
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 WannaCry

Intelligence

File Origin
# of uploads :
1
# of downloads :
511
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/293598/
Detection(s):
Win.Trojan.Agent-6568811-0
Create hunting rule

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-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
Searching for the window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
50%
Tags:
cmd.exe CVE-2017-0147 greyware greyware overlay packed packed ransomware shell32.dll wanna wannacry wannacryptor wcry worm
Link:
https://www.filescan.io/uploads/62db8bdbef2b0e63a83441ec/reports/93d961da-1ff4-458a-88d6-c91c191fb32d/overview
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4641bb2d-2f96-48ca-aca3-7c96d5d219b2
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1039638
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
Snort IDS alert for network traffic
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 672132 Sample: 047KCi3D28 Startdate: 23/07/2022 Architecture: WINDOWS Score: 100 48 time.windows.com 2->48 60 Snort IDS alert for network traffic 2->60 62 Multi AV Scanner detection for domain / URL 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 7 other signatures 2->66 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        52 192.168.2.120 unknown unknown 11->52 54 192.168.2.121 unknown unknown 11->54 56 99 other IPs or domains 11->56 76 Connects to many different private IPs via SMB (likely to spread or exploit) 11->76 78 Connects to many different private IPs (likely to spread or exploit) 11->78 80 Changes security center settings (notifications, updates, antivirus, firewall) 15->80 27 MpCmdRun.exe 1 15->27         started        signatures6 process7 file8 29 rundll32.exe 19->29         started        68 Drops executables to the windows directory (C:\Windows) and starts them 21->68 31 mssecsvr.exe 7 21->31         started        46 C:\Windows\mssecsvr.exe, PE32 24->46 dropped 35 conhost.exe 27->35         started        signatures9 process10 dnsIp11 37 mssecsvr.exe 7 29->37         started        58 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 31->58 42 C:\WINDOWS\qeriuwjhrf (copy), PE32 31->42 dropped file12 process13 dnsIp14 50 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 37->50 44 C:\Windows\tasksche.exe, PE32 37->44 dropped 70 Antivirus detection for dropped file 37->70 72 Multi AV Scanner detection for dropped file 37->72 74 Machine Learning detection for dropped file 37->74 file15 signatures16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a65859a5a42c69436645d519f05ecff47345cc444615e486960af7e5d4a2ae22/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-06-01 22:20:18 UTC
File Type:
PE (Dll)
Extracted files:
3
AV detection:
28 of 31 (90.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uzmftjnefruugzsf2um7axwp6rzultceiyk6jbuwbl36lvfcvyra._file
Verdict:
malicious
Similar samples:
0bf03d84ce97a6f5efa5fee889cc6de6ef892a0312fdbbdc1aafc7ed87ca574a
WannaCry
0ca55fe01cf52696f424100ee6de4e8dd262ce1c83257d22bc3edc42c30fb944
WannaCry
0ef3e12c837bd305c71966452aa170f20d4c3756a13308935a984e82bb76cc8b
WannaCry
178fe955a6c0412daaf5a36485281a168ab40df284b451dad6c84043a6a5c0d6
WannaCry
48fc9ccb42ec0234df4d4f41db1d0cb1e1fe6aa5e640c28625aa3d73e65d2856
WannaCry
4ad8b3f097407841c48eb1a9283d1fb0fe38a95c6eda313c8e2cb38dc13c78b2
WannaCry
60b39d34b2089438db05f612a11f09e14fea05317ca2b4eb4f992b5be4d61103
WannaCry
7b6c1fbb57ab54c91417cd9f2922fa1699729895ac7b7cc6c204846532dc8abe
WannaCry
8f86b42241e81b7461ba45fde82505332e4578663fdd20c2723a99863c34ad67
WannaCry
a493ccf77d9cf19b2c81ab47e8424c1d87f140c1a5ae91b31a9f855c22787817
WannaCry
+ 498 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/220723-ggvywscfen/
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 (1242) amount of remote hosts
Executes dropped EXE
Contacts a large (3078) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
a65859a5a42c69436645d519f05ecff47345cc444615e486960af7e5d4a2ae22
MD5 hash:
25a530e8998f901112666bbfcede0b06
SHA1 hash:
f0ff2bc9340f8ef7eaf737a2c6f9f3a461b22c80
Link:
https://www.unpac.me/results/aa9838d0-5a4b-4d9e-a73a-774226e760f3/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a65859a5a42c/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/a65859a5a42c69436645d519f05ecff47345cc444615e486960af7e5d4a2ae22

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/293598/

Comments