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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7d8c3c4d8fa50ea3eb0ffac24904616e3b29659a56cb7f4835bf3348883db4f. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7d8c3c4d8fa50ea3eb0ffac24904616e3b29659a56cb7f4835bf3348883db4f
SHA3-384 hash: e9f2b19e46022b58ee2c9ccd54470f88ae15b1f53936e651b7ead0960c3f3b9a2de215d32a679835c91ed8576dfc7d8a
SHA1 hash: ee0f5c896b5a2469f8776b78b173ab32a7f77c80
MD5 hash: 5a9e809ef287470a50cef41df8897b62
humanhash: virginia-echo-berlin-magnesium
File name:5a9e809ef287470a50cef41df8897b62
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2025-01-14 19:58:29 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 98304:+DqPoBhz1aRxcSUDk36SAEdhvxWa9P593:+DqPe1Cxcxk3ZAEUadz
Threatray 1'039 similar samples on MalwareBazaar
TLSH T1983633A8723CE2BCE10519B40463C966A7B73C6556FF5E0F8B9085A61D43B5FBBC0E42
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) (10522/11/4)
7.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter mentality
Tags:dll exe WannaCry

Intelligence

File Origin
# of uploads :
1
# of downloads :
154
Origin country :
CA CA
Vendor Threat Intelligence
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-9982112-0
Create hunting rule

Win.Ransomware.WannaCry-10011460-0
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

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6786c20c4487910100df063b
Tags:
wannacry madi
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto lolbin microsoft_visual_cc overlay packed ransomware smb threat wanna wannacry wannacrypt wannacryptor
Link:
https://www.filescan.io/uploads/6786c20aeab149d1d2341ed1/reports/4b655f8c-39ef-44b2-9373-8c398362c318/overview
Verdict:
Malicious
Labled as:
CVE-2017-0147
Link:
https://www.hybrid-analysis.com/sample/b7d8c3c4d8fa50ea3eb0ffac24904616e3b29659a56cb7f4835bf3348883db4f
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7a7169c7-ceca-45ca-8c52-902023d19f92
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1591281
Signature
AI detected suspicious sample
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)
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
Suricata IDS alerts for network traffic
Tries to download HTTP data from a sinkholed server
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1591281 Sample: 5Q6ffmX9tQ.dll Startdate: 14/01/2025 Architecture: WINDOWS Score: 100 43 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 2->43 45 198.187.3.20.in-addr.arpa 2->45 55 Tries to download HTTP data from a sinkholed server 2->55 57 Suricata IDS alerts for network traffic 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 6 other signatures 2->61 10 loaddll32.exe 1 2->10         started        12 mssecsvc.exe 2->12         started        signatures3 process4 dnsIp5 16 cmd.exe 1 10->16         started        18 rundll32.exe 10->18         started        21 conhost.exe 10->21         started        23 rundll32.exe 1 10->23         started        47 192.168.2.102 unknown unknown 12->47 49 192.168.2.103 unknown unknown 12->49 51 98 other IPs or domains 12->51 73 Connects to many different private IPs via SMB (likely to spread or exploit) 12->73 75 Connects to many different private IPs (likely to spread or exploit) 12->75 signatures6 process7 signatures8 25 rundll32.exe 16->25         started        53 Drops executables to the windows directory (C:\Windows) and starts them 18->53 27 mssecsvc.exe 7 18->27         started        process9 file10 31 mssecsvc.exe 7 25->31         started        39 C:\WINDOWS\qeriuwjhrf (copy), PE32 27->39 dropped 71 Drops executables to the windows directory (C:\Windows) and starts them 27->71 34 tasksche.exe 27->34         started        signatures11 process12 file13 41 C:\Windows\tasksche.exe, PE32 31->41 dropped 36 tasksche.exe 31->36         started        process14 signatures15 63 Detected Wannacry Ransomware 36->63 65 Antivirus detection for dropped file 36->65 67 Multi AV Scanner detection for dropped file 36->67 69 Machine Learning detection for dropped file 36->69
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b7d8c3c4d8fa50ea3eb0ffac24904616e3b29659a56cb7f4835bf3348883db4f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7d8c3c4d8fa50ea3eb0ffac24904616e3b29659a56cb7f4835bf3348883db4f/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2017-06-05 12:34:22 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
36 of 38 (94.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w7mmhrgy7jioupvq76wcjecgc3r3ffszuvwlp5edlpztjced3nhq._file
Verdict:
malicious
Label(s):
wannacryptor
Create hunting rule
Similar samples:
07c44729e2c570b37db695323249474831f5861d45318bf49ccf5d2f5c8ea1cd
WannaCry
1d51d46e07d1aaaf34b8b43371bb71aa87812b226341944ab661c286e66de4cd
WannaCry
55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
WannaCry
9678763f65e207dde99f4f8723ddfc44bc2d3f9b490aa3d3d4676c661474d59f
WannaCry
d6a6375525eea8dd410d8dd6a98130f607b665e3ab7cd2824d84bdab5db66381
WannaCry
e3091bc1b0af2c94c4873fb4204fcd39234952edd4cb1e82f1053e66663e3a4e
WannaCry
ec29f4db6e43c8bfad91f4d2910c6db42b975d33f7a51c69ea9e0dc9d400584f
WannaCry
+ 1'029 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/250114-yqefyazner/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Creates a large amount of network flows
Executes dropped EXE
Contacts a large (3101) amount of remote hosts
Wannacry
Wannacry family
Unpacked files
SH256 hash:
0514b35217b984200ae41623961adab78f2f538bf2614eea067194d4d281f5fe
MD5 hash:
ae66aa60b12fe89c181aebc71ae5bae7
SHA1 hash:
e0681e1a1333954c44b6da481efffb7c2c723dd4
Detections:
WannaCry
Create hunting rule
Win32_Ransomware_WannaCry
Create hunting rule
ransomware_windows_wannacry
Create hunting rule
WannaCry_Ransomware
Create hunting rule
Link:
https://www.unpac.me/results/8ec33ed8-d117-4e00-9f1b-1d4056b87662/
SH256 hash:
ccde3f6c80250b8e3b5709ef3a1375aa9f64b3e675ff495ec5549fe738af218e
MD5 hash:
c4aa4f0eb44ed580e3c8833f8b2392a7
SHA1 hash:
daa76bd19a0b71a74c55e3f2b2a328a8fde70f7a
Detections:
WannaCry
Create hunting rule
Win32_Ransomware_WannaCry
Create hunting rule
ransomware_windows_wannacry
Create hunting rule
WannaCry_Ransomware
Create hunting rule
WannaCry_Ransomware_Gen
Create hunting rule
Link:
https://www.unpac.me/results/8ec33ed8-d117-4e00-9f1b-1d4056b87662/
SH256 hash:
b7d8c3c4d8fa50ea3eb0ffac24904616e3b29659a56cb7f4835bf3348883db4f
MD5 hash:
5a9e809ef287470a50cef41df8897b62
SHA1 hash:
ee0f5c896b5a2469f8776b78b173ab32a7f77c80
Detections:
WannaCry
Create hunting rule
Link:
https://www.unpac.me/results/8ec33ed8-d117-4e00-9f1b-1d4056b87662/
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/b7d8c3c4d8fa50ea3eb0ffac24904616e3b29659a56cb7f4835bf3348883db4f

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:Armadillov1xxv2xx
Create hunting rule
Author:malware-lu
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:SUSP_Imphash_Mar23_2
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Zero hits with with search for 'imphash:x p:0' on Virustotal)
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::CloseHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA

Comments