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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2231906bac6fe467ccd791d0f871d63ae59a7db1fe7c5544fbd157488dd3285. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2231906bac6fe467ccd791d0f871d63ae59a7db1fe7c5544fbd157488dd3285
SHA3-384 hash: 7a9d5d54ec477ac93330bcec9a65752fb0df80d265f5f50a753985c5ba010694980dcc5f88add8d7ef7766cd8abbbdbc
SHA1 hash: 461f9aa0ee8d46217a5e7a1b4ce65bf9e7d8384b
MD5 hash: 84162f784d494e5d736b595afc0c34c9
humanhash: harry-cat-twelve-kilo
File name:84162f784d494e5d736b595afc0c34c9
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 04:43:41 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:zbLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqT:znAQqMSPbcBVQej/1INRx+TSqT
Threatray 278 similar samples on MalwareBazaar
TLSH T19836235E317CD1FCD10A667564A7CE67D6F33C5A22B8AA0F8F448AB60C03755AF64A03
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 :
303
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292515/
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/62d788580e298a94f3e18a53/reports/143f3d07-b60b-4fe2-905b-679ab77e0d08/overview
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/039b99ce-8fd7-471a-ada0-7869a0a45151
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1037954
Behaviour
Behavior Graph:
n/a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a2231906bac6fe467ccd791d0f871d63ae59a7db1fe7c5544fbd157488dd3285/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-08-31 05:00:47 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=uirrsbv2y37em7gnpeoq7by5moxftj63d7t4kvcpxukxjcg5gkcq._file
Verdict:
malicious
Similar samples:
0ca55fe01cf52696f424100ee6de4e8dd262ce1c83257d22bc3edc42c30fb944
WannaCry
0ef3e12c837bd305c71966452aa170f20d4c3756a13308935a984e82bb76cc8b
WannaCry
268c5e3f3050d96c2fc80f38e7a81846bd799ba949d69f35bd2151e509189505
WannaCry
48fc9ccb42ec0234df4d4f41db1d0cb1e1fe6aa5e640c28625aa3d73e65d2856
WannaCry
4bf1fbbd994e86b9419d03ba4e930e2367837952ce603cbbed1d71750718c7c4
WannaCry
55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
WannaCry
60b39d34b2089438db05f612a11f09e14fea05317ca2b4eb4f992b5be4d61103
WannaCry
8f86b42241e81b7461ba45fde82505332e4578663fdd20c2723a99863c34ad67
WannaCry
c74d4c435684c89f0f3ca6f18e75c3c2ae6f306ebb352d4246261650f15ef69a
WannaCry
+ 268 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-fct1cscebm/
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 (1238) amount of remote hosts
Executes dropped EXE
Contacts a large (3173) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
a2231906bac6fe467ccd791d0f871d63ae59a7db1fe7c5544fbd157488dd3285
MD5 hash:
84162f784d494e5d736b595afc0c34c9
SHA1 hash:
461f9aa0ee8d46217a5e7a1b4ce65bf9e7d8384b
Link:
https://www.unpac.me/results/f360284a-b606-46c2-abc6-c2d39156b7d6/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a2231906bac6/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/a2231906bac6fe467ccd791d0f871d63ae59a7db1fe7c5544fbd157488dd3285

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/292515/

Comments