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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8db12d4e1b926b79ef7857e91b34e909b8024c3eaaab8580e4e1d157eaa726f. 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: c8db12d4e1b926b79ef7857e91b34e909b8024c3eaaab8580e4e1d157eaa726f
SHA3-384 hash: 4404f91f8f2c9f8c6748d39008e0bae905b530df3b7259e097082541e64c9ce794c205f4ff917454a20aa6ceb1bc7c5a
SHA1 hash: 89da95dd1f288ad96ed5e79907bd7eeb1e5af63f
MD5 hash: 2a3576b7a781ed83ef73954c33b235f9
humanhash: burger-jupiter-helium-maine
File name:2a3576b7a781ed83ef73954c33b235f9
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 00:22:54 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:MnjQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:s8qPoBhz1aRxcSUDk36SAEdhvxWa9P5
Threatray 16 similar samples on MalwareBazaar
TLSH T14236336CB23CD6FCD10519B44463CA66A7733C6566FE6A0F8F4089671D03B6ABBD0B42
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 :
1
# of downloads :
214
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292061/
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-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/62d74b67ee649612ac5c1d8a/reports/0429bca9-9c7a-44b5-9852-2e50ea34f3bf/overview
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ca2cb98c-6eed-4e54-a4a1-c442786e7249
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1036920
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many different private IPs (likely to spread or exploit)
Connects to many different private IPs via SMB (likely to spread or exploit)
Connects to many IPs within the same subnet mask (likely port scanning)
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 dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 669414 Sample: iG9dc9vCjP Startdate: 20/07/2022 Architecture: WINDOWS Score: 100 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 58 Multi AV Scanner detection for dropped file 2->58 60 4 other signatures 2->60 9 loaddll32.exe 1 2->9         started        11 mssecsvc.exe 2->11         started        15 svchost.exe 2->15         started        17 6 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        48 192.168.2.120 unknown unknown 11->48 50 192.168.2.121 unknown unknown 11->50 52 98 other IPs or domains 11->52 78 Connects to many different private IPs via SMB (likely to spread or exploit) 11->78 80 Connects to many different private IPs (likely to spread or exploit) 11->80 82 Query firmware table information (likely to detect VMs) 15->82 signatures5 process6 file7 27 rundll32.exe 19->27         started        68 Drops executables to the windows directory (C:\Windows) and starts them 21->68 29 mssecsvc.exe 1 21->29         started        44 C:\Windows\mssecsvc.exe, PE32 24->44 dropped signatures8 process9 file10 33 mssecsvc.exe 1 27->33         started        46 C:\WINDOWS\qeriuwjhrf (copy), PE32 29->46 dropped 84 Drops executables to the windows directory (C:\Windows) and starts them 29->84 37 tasksche.exe 29->37         started        signatures11 process12 file13 42 C:\Windows\tasksche.exe, PE32 33->42 dropped 62 Antivirus detection for dropped file 33->62 64 Multi AV Scanner detection for dropped file 33->64 66 Machine Learning detection for dropped file 33->66 39 tasksche.exe 33->39         started        signatures14 process15 signatures16 70 Detected Wannacry Ransomware 39->70 72 Antivirus detection for dropped file 39->72 74 Multi AV Scanner detection for dropped file 39->74 76 Machine Learning detection for dropped file 39->76
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8db12d4e1b926b79ef7857e91b34e909b8024c3eaaab8580e4e1d157eaa726f/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-04-24 14:10:04 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
37 of 41 (90.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zdnrfvhbxetlphxxqv7jdm2oscnyajgd5kvlqwaojyork7vkojxq._file
Verdict:
malicious
Similar samples:
268c5e3f3050d96c2fc80f38e7a81846bd799ba949d69f35bd2151e509189505
WannaCry
36dc0aae52946e3f9530c53925301bb8dbfa8216291705d99ef913d55f6ec1c9
WannaCry
55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
WannaCry
59eee303cf6cbf5bc6019b07f3e49714cbcc8f98639b36d55a9e0289de456c91
WannaCry
773186144282a63cc3502ad10a3d8fd781a6c83eaabf06de4369b4ef96d93178
WannaCry
8c1ef884611f42e99c832194d6d1d446c0a99cf8070e556e6b15204327cf3d84
WannaCry
8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021
WannaCry
9225232799b946c0b18e7270bb29a265e1985d6192c04114cec51fa7b34f11ff
WannaCry
95f9847e020b97c1a3bc47d33c15da892958bb76c95153696eda1f13e454ddf5
WannaCry
d6cb63f23b784915ebd8ac1b195c46251fa1241b324beb99a61d7c4ba27ea99b
WannaCry
+ 6 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-apgmxahga5/
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 (3219) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
c8db12d4e1b926b79ef7857e91b34e909b8024c3eaaab8580e4e1d157eaa726f
MD5 hash:
2a3576b7a781ed83ef73954c33b235f9
SHA1 hash:
89da95dd1f288ad96ed5e79907bd7eeb1e5af63f
Link:
https://www.unpac.me/results/d5345a5a-550f-4fb8-935b-4ad2da501ed4/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8db12d4e1b9/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/c8db12d4e1b926b79ef7857e91b34e909b8024c3eaaab8580e4e1d157eaa726f

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/292061/

Comments