MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 640dce63eee0174f579c4b7e9c5be5d343b7c92fa00bfa8b5939da503cc30b6f. 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: 640dce63eee0174f579c4b7e9c5be5d343b7c92fa00bfa8b5939da503cc30b6f
SHA3-384 hash: 896a271f83712d79a2855f872944e4473b981d9c3af6818a542fd47de8ab5c9019ca62e85af1232df747747997fda639
SHA1 hash: e62a3938f9e90cedb569610a2105c2e7d2435048
MD5 hash: fd87758748797802178a51c34cc53aa5
humanhash: montana-avocado-six-kilo
File name:fd87758748797802178a51c34cc53aa5
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 06:01:58 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (874 x WannaCry, 4 x Worm.Virut)
ssdeep 98304:TDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:TDqPe1Cxcxk3ZAEUadzR8yc4H
Threatray 13'197 similar samples on MalwareBazaar
TLSH T187363398612CB2FCF0450EB44473896AB7B33C6967BA4E1F9BC086660D53F5BAFD0641
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 :
231
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292653/
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 packed ransomware shell32.dll wanna wannacry worm
Link:
https://www.filescan.io/uploads/62d79add80dba4f80a251e6e/reports/f40550f4-899f-457b-9461-06fb11b719a8/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/a492f88c-90ff-44bc-a797-a85e3813d918
Result
Threat name:
Wannacry, Virut
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1037702
Behaviour
Behavior Graph:
n/a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/640dce63eee0174f579c4b7e9c5be5d343b7c92fa00bfa8b5939da503cc30b6f/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2017-10-19 06:55:11 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqg44y7o4alu6v44jn7jyw7f2nb3psjpuaf7vc2zhhnfapgdbnxq._file
Verdict:
malicious
Similar samples:
6448d228f342fb138a747f8fa317b004553f36f83fdd1b200baf80b7b9d9f5da
WannaCry
69d11b63913d84025f1469123b83bb21066a274f2240f87e119f49362abbc9ca
WannaCry
8167a2eb7ddb581480903b49be8644972c638a83d878df59a34bc0dff0338170
WannaCry
83d1b64a9bca34640ec3722e9ef0dcb18669ec1b5a866f4e7517e760005b7d73
WannaCry
84382639746a15b8d22e688cc3dd7a30f6fda64f18580348b14c23aa34c8a6cd
WannaCry
8fa3eaa46c7d8d1f44a2eeca895f802f2aa7a2251bab347ccb765c72d63ccb58
WannaCry
9a52b3add7580749d5c6fac089238e11939a8926ae5f9482a61a25ad7182a21f
WannaCry
a60b47e8c834aa97ddda9bd70dd41d8dc61649fd878ea913bc242ae79fe8cc77
WannaCry
b8e40ed3d1f01fd75f0f43d4784d92aaa9596f289f23c35969af1a4c1e149c30
WannaCry
fd9bb6bf944bfc60dee7e7c762615be99ce4bd822df2af5df8ec0bf8cab2d805
WannaCry
+ 13'187 additional samples on MalwareBazaar
Result
Malware family:
wannacry
Create hunting rule
Score:
  10/10
Tags:
family:wannacry discovery evasion ransomware worm
Link:
https://tria.ge/reports/220720-grgh9adabp/
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Windows directory
Drops file in System32 directory
Creates a large amount of network flows
Contacts a large (1228) amount of remote hosts
Executes dropped EXE
Contacts a large (3221) amount of remote hosts
Modifies firewall policy service
Wannacry
Unpacked files
SH256 hash:
640dce63eee0174f579c4b7e9c5be5d343b7c92fa00bfa8b5939da503cc30b6f
MD5 hash:
fd87758748797802178a51c34cc53aa5
SHA1 hash:
e62a3938f9e90cedb569610a2105c2e7d2435048
Link:
https://www.unpac.me/results/55d9f6a0-ca6e-4d2c-b23a-b935ff349255/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/640dce63eee0/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/640dce63eee0174f579c4b7e9c5be5d343b7c92fa00bfa8b5939da503cc30b6f

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/292653/

Comments