MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b0401276658ea1d3837e2ae54ad84cb0da1f7de3faf73ababe83abea06dff7d9. 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 6 File information Comments

SHA256 hash:	b0401276658ea1d3837e2ae54ad84cb0da1f7de3faf73ababe83abea06dff7d9
SHA3-384 hash:	3f9fb8037c21b1721db20eb5a3a21d3fc4ee8d293b200c61f1f06adbad07ace24387f858546c15e0a9db48a4bd74e14d
SHA1 hash:	80f8b1a75e96e863b82c68114be9f19925f482d2
MD5 hash:	b03e454eca380716e9746676267621b9
humanhash:	august-helium-summer-minnesota
File name:	2023-04-27_b03e454eca380716e9746676267621b9_wannacry
Download:	download sample
Signature	WannaCry Create hunting rule
File size:	3'723'264 bytes
First seen:	2023-04-28 20:17:31 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	9ecee117164e0b870a53dd187cdd7174 (82 x WannaCry, 1 x Worm.Virut)
ssdeep	49152:VnjQoMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnv:Z8oPoBhz1aRxcSUDk36SAEdhv
Threatray	996 similar samples on MalwareBazaar
TLSH	T118063359707CD5FCC10A29B444AB8A67A7F33C2A26FE690F9F408A661D53F19BB50703
TrID	37.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 20.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 12.7% (.EXE) Win64 Executable (generic) (10523/12/4) 7.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter	petikvx
Tags:	WannaCry

Intelligence

File Origin

# of uploads :

# of downloads :

284

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

2023-04-27_b03e454eca380716e9746676267621b9_wannacry

Verdict:

No threats detected

Analysis date:

2023-04-28 20:37:13 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/39273d52-ea77-4048-95a3-55e501ee382e

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/385592/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a service

Launching a service

Searching for synchronization primitives

Sending a custom TCP request

Enabling autorun for a service

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

greyware packed ransomware shell32.dll wanna wannacry wannacryptor worm

Link:

https://www.filescan.io/uploads/644c2a15d7f41b9c6731461e/reports/bba1b168-626d-4f1c-8371-ed51339f8737/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/b0401276658ea1d3837e2ae54ad84cb0da1f7de3faf73ababe83abea06dff7d9

Malware family:

Mimikatz

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/38853f6a-20cd-497a-a8a9-3fd03d98c6e6

Result

Threat name:

Wannacry

Detection:

malicious

Classification:

rans.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1223152

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

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)

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

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b0401276658ea1d3837e2ae54ad84cb0da1f7de3faf73ababe83abea06dff7d9/

Threat name:

Win32.Ransomware.WannaCry

Status:

Malicious

First seen:

2023-04-22 00:43:41 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

36 of 37 (97.30%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=wbabe5tfr2q5ha36flsuvwcmwdnb67pd7l3tvov6qov6ubw767mq._file

Verdict:

malicious

Result

Malware family:

wannacry

Score:

10/10

Tags:

family:wannacry discovery ransomware worm

Link:

https://tria.ge/reports/230428-y3cswaab5x/

Behaviour

Modifies data under HKEY_USERS

Drops file in Windows directory

Drops file in System32 directory

Creates a large amount of network flows

Contacts a large (1485) amount of remote hosts

Contacts a large (3231) amount of remote hosts

Wannacry

Unpacked files

SH256 hash:

b0401276658ea1d3837e2ae54ad84cb0da1f7de3faf73ababe83abea06dff7d9

MD5 hash:

b03e454eca380716e9746676267621b9

SHA1 hash:

80f8b1a75e96e863b82c68114be9f19925f482d2

Link:

https://www.unpac.me/results/d2d21aa4-7685-4131-a47b-aab5b0cc2e16/

Malware family:

WannaCry

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b0401276658e/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b0401276658ea1d3837e2ae54ad84cb0da1f7de3faf73ababe83abea06dff7d9

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:	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 (Nextron Systems) (with the help of binar.ly)
Description:	Detects WannaCry Ransomware
Reference:	https://goo.gl/HG2j5T

Rule name:	WannaCry_Ransomware_Gen Create hunting rule
Author:	Florian Roth (Nextron Systems) (based on rule by US CERT)
Description:	Detects WannaCry Ransomware
Reference:	https://www.us-cert.gov/ncas/alerts/TA17-132A

Rule name:	WannaCry_Ransomware_Gen_RID302B Create hunting rule
Author:	Florian Roth (based on rule by US CERT)
Description:	Detects WannaCry Ransomware
Reference:	https://www.us-cert.gov/ncas/alerts/TA17-132A

Rule name:	Win32_Ransomware_WannaCry Create hunting rule
Author:	ReversingLabs
Description:	Yara rule that detects WannaCry ransomware.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape

https://www.capesandbox.com/analysis/385592/

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