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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fca91ac499fbffbcc8b20d876bf84f7833d72825810f628b67098aec7d1c7037. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fca91ac499fbffbcc8b20d876bf84f7833d72825810f628b67098aec7d1c7037
SHA3-384 hash: e23fea0ade778ddb9a035845de86d945fd35dde6f9c127ef0e3bbe62c65220969c3275e5f6eada46ada3d429887809f8
SHA1 hash: 5a810aef694aa0b1ee9dcf35e9f3759d29677346
MD5 hash: 2315e86a19005c5e60b0109dbb8dc925
humanhash: oxygen-glucose-missouri-cup
File name:2315e86a19005c5e60b0109dbb8dc925
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2025-01-15 01:50:10 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:+DqPoBkaRxcSUDk36SAEdhvxWa9P593R8yAVp2H:+DqPlCxcxk3ZAEUadzR8yc4H
TLSH T16F363394522CA2BCF1550DB44063896AF7B33C6997FA4F1F87C046AA0D53B9BBBD0B41
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 :
524
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-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=678714884487910100df1815
Tags:
wannacry madi
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto lolbin microsoft_visual_cc overlay overlay packed packed ransomware smb wannacry
Link:
https://www.filescan.io/uploads/6787148700fbe0ad29eac863/reports/fd43f18f-fda6-40ac-bd03-4d966edcf79e/overview
Verdict:
Malicious
Labled as:
CVE-2017-0147
Link:
https://www.hybrid-analysis.com/sample/fca91ac499fbffbcc8b20d876bf84f7833d72825810f628b67098aec7d1c7037
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/93e954e6-eca5-445b-ba71-044a98522e83
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1591519
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: 1591519 Sample: 330tqxXVzm.dll Startdate: 15/01/2025 Architecture: WINDOWS Score: 100 47 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 2->47 63 Tries to download HTTP data from a sinkholed server 2->63 65 Suricata IDS alerts for network traffic 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 6 other signatures 2->69 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 rundll32.exe 1 10->21         started        24 conhost.exe 10->24         started        49 192.168.2.104 unknown unknown 12->49 51 192.168.2.105 unknown unknown 12->51 53 98 other IPs or domains 12->53 79 Connects to many different private IPs via SMB (likely to spread or exploit) 12->79 81 Connects to many different private IPs (likely to spread or exploit) 12->81 signatures6 process7 file8 26 rundll32.exe 16->26         started        61 Drops executables to the windows directory (C:\Windows) and starts them 18->61 28 mssecsvc.exe 7 18->28         started        43 C:\Windows\mssecsvc.exe, PE32 21->43 dropped signatures9 process10 file11 32 mssecsvc.exe 7 26->32         started        45 C:\WINDOWS\qeriuwjhrf (copy), PE32 28->45 dropped 83 Drops executables to the windows directory (C:\Windows) and starts them 28->83 36 tasksche.exe 28->36         started        signatures12 process13 file14 41 C:\Windows\tasksche.exe, PE32 32->41 dropped 55 Antivirus detection for dropped file 32->55 57 Multi AV Scanner detection for dropped file 32->57 59 Machine Learning detection for dropped file 32->59 38 tasksche.exe 32->38         started        signatures15 process16 signatures17 71 Detected Wannacry Ransomware 38->71 73 Antivirus detection for dropped file 38->73 75 Multi AV Scanner detection for dropped file 38->75 77 Machine Learning detection for dropped file 38->77
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fca91ac499fbffbcc8b20d876bf84f7833d72825810f628b67098aec7d1c7037
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fca91ac499fbffbcc8b20d876bf84f7833d72825810f628b67098aec7d1c7037/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2017-07-18 21:53:35 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
35 of 38 (92.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7survrez7p73zsfsbwdwx6cppaz5okbfqehwfc3hbgfoy7i4oa3q._file
Verdict:
malicious
Label(s):
wannacryptor
Create hunting rule
Similar samples:
error
WannaCry
Result
Malware family:
wannacry
Create hunting rule
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
Link:
https://tria.ge/reports/250115-b9t96swqgs/
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 (3244) amount of remote hosts
Wannacry
Wannacry family
Unpacked files
SH256 hash:
81505522b84444cb5f006fb60330421c51012b7f60d04fd79f837f5297e217a9
MD5 hash:
29868284ea8eb1d5db9949a9112cbab9
SHA1 hash:
ce695039175fe31cfb10b10fadec1c0523c72279
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/a569603a-e9bc-414f-b1c0-d03c4d82df1d/
SH256 hash:
65ca8be3052d01a3ec269e7236307f455178e84ab7932fa6a57cd164bc5194a1
MD5 hash:
5ce0c05bc5a5a786c0623c16c2d8b3a5
SHA1 hash:
c84ba976f9957e0dec7946aada3595991c7530ea
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/a569603a-e9bc-414f-b1c0-d03c4d82df1d/
SH256 hash:
fca91ac499fbffbcc8b20d876bf84f7833d72825810f628b67098aec7d1c7037
MD5 hash:
2315e86a19005c5e60b0109dbb8dc925
SHA1 hash:
5a810aef694aa0b1ee9dcf35e9f3759d29677346
Detections:
WannaCry
Create hunting rule
Link:
https://www.unpac.me/results/a569603a-e9bc-414f-b1c0-d03c4d82df1d/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fca91ac499fb/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/fca91ac499fbffbcc8b20d876bf84f7833d72825810f628b67098aec7d1c7037

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