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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 549ef7c59ad79c923723c55ebfcb1b7a82515e6544198b86cb8d8a1c974dc56a. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 549ef7c59ad79c923723c55ebfcb1b7a82515e6544198b86cb8d8a1c974dc56a
SHA3-384 hash: 57cb018572ef260a52c94abe1dcac7203963648d45c527e292abe8a46ccda6565be243faaacc8b709d6e74a942620cec
SHA1 hash: 6cc1e3229f2959eaa1bbc15fe05c447ccb25a69e
MD5 hash: a100c690ccb0fdb318a920fbb8911cfb
humanhash: robin-nevada-red-orange
File name:a100c690ccb0fdb318a920fbb8911cfb
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 05:42:21 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'135 x WannaCry, 7 x Worm.Virut, 3 x Expiro)
ssdeep 24576:SbLgddQhfdmMSirYbcMNgef0YnEaut/8uME7A4kqAH1pNZtA0p+9XEk:SnAQqMSPbcBVKEau3R8yAH1plAH
Threatray 373 similar samples on MalwareBazaar
TLSH T1BC363351665C61FCE0A94770B0630A2AFBF77C2E6375871F8BC4C7960C53790BEA8A46
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 :
238
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292617/
Detection(s):
Win.Exploit.Doublepulsar-7427328-0
Create hunting rule

Win.Malware.Djwy-6775897-0
Create hunting rule

Win.Malware.Djwy-6923377-0
Create hunting rule

Win.Ransomware.Wanacryptor-9942127-1
Create hunting rule

Win.Ransomware.Wanna-6888334-0
Create hunting rule

Win.Ransomware.Wanna-9769986-0
Create hunting rule

Win.Ransomware.WannaCry-6313787-0
Create hunting rule

Win.Ransomware.Wannacryptor-9940180-0
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/62d795cf8fbcdde3605f2c4e/reports/a7a88029-e090-4b86-bafe-456952238610/overview
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a683008f-7809-4b0f-a003-c287494994af
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1037150
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Connects to many different private IPs (likely to spread or exploit)
Connects to many different private IPs via SMB (likely to spread or exploit)
Connects to many IPs within the same subnet mask (likely port scanning)
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
Query firmware table information (likely to detect VMs)
Snort IDS alert for network traffic
Tries to download HTTP data from a sinkholed server
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 669644 Sample: 8o8AuraQPk Startdate: 20/07/2022 Architecture: WINDOWS Score: 100 60 Tries to download HTTP data from a sinkholed server 2->60 62 Snort IDS alert for network traffic 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 7 other signatures 2->66 9 loaddll32.exe 1 2->9         started        11 mssecsvc.exe 2->11         started        15 svchost.exe 2->15         started        17 6 other processes 2->17 process3 dnsIp4 19 cmd.exe 1 9->19         started        21 rundll32.exe 9->21         started        24 rundll32.exe 1 9->24         started        52 104.17.244.81, 49760, 80 CLOUDFLARENETUS United States 11->52 54 192.168.2.120 unknown unknown 11->54 56 99 other IPs or domains 11->56 84 Connects to many different private IPs via SMB (likely to spread or exploit) 11->84 86 Connects to many different private IPs (likely to spread or exploit) 11->86 88 Query firmware table information (likely to detect VMs) 15->88 signatures5 process6 file7 27 rundll32.exe 19->27         started        74 Drops executables to the windows directory (C:\Windows) and starts them 21->74 29 mssecsvc.exe 7 21->29         started        46 C:\Windows\mssecsvc.exe, PE32 24->46 dropped signatures8 process9 dnsIp10 34 mssecsvc.exe 7 27->34         started        58 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 29->58 48 C:\WINDOWS\qeriuwjhrf (copy), PE32 29->48 dropped 90 Drops executables to the windows directory (C:\Windows) and starts them 29->90 39 tasksche.exe 29->39         started        file11 signatures12 process13 dnsIp14 50 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 34->50 44 C:\Windows\tasksche.exe, PE32 34->44 dropped 68 Antivirus detection for dropped file 34->68 70 Multi AV Scanner detection for dropped file 34->70 72 Machine Learning detection for dropped file 34->72 41 tasksche.exe 34->41         started        file15 signatures16 process17 signatures18 76 Detected Wannacry Ransomware 41->76 78 Antivirus detection for dropped file 41->78 80 Multi AV Scanner detection for dropped file 41->80 82 Machine Learning detection for dropped file 41->82
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/549ef7c59ad79c923723c55ebfcb1b7a82515e6544198b86cb8d8a1c974dc56a/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-09-08 18:19:06 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
40 of 44 (90.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ksppprm226ojenzdyvpl7sy3pkbfcxtfiqmyxbwlrwfbzf2nyvva._file
Verdict:
malicious
Similar samples:
138887bdba248dab37aaa98cf2d7f06445b8018a24a9a2ffeb70da5a1d1be038
WannaCry
287889afcc2b86f6b705c55882880954e41f15ecbf3441980a567f8ff10605a3
WannaCry
2da27cb1ddfd315a6497300d881d04b280f0bb6ee41a722aef22408df9f82c38
WannaCry
4f3efd02972af5aab87a78672b1439578b8c7f2598abdbd4ae78f00138ee31b7
WannaCry
59eee303cf6cbf5bc6019b07f3e49714cbcc8f98639b36d55a9e0289de456c91
WannaCry
5e014f792276618ccc7e7401207fb2758097f440ce28aeb70a024b6ed4251aa1
WannaCry
8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021
WannaCry
9627a29e207c056214d80b43ad8f1ddc9f12635e21036b948b05b5d945ad3c88
WannaCry
9dff446dd66f69115dda623bcb49e0a1b9783e3de4e57ab4c48d321ff316434c
WannaCry
fdca1e0c8951ddfbea1f9a4fbdd44aff52f3608396788add49b99c3f0b482e09
WannaCry
+ 363 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-gek1xaccg9/
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 (1043) amount of remote hosts
Executes dropped EXE
Contacts a large (3240) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
549ef7c59ad79c923723c55ebfcb1b7a82515e6544198b86cb8d8a1c974dc56a
MD5 hash:
a100c690ccb0fdb318a920fbb8911cfb
SHA1 hash:
6cc1e3229f2959eaa1bbc15fe05c447ccb25a69e
Link:
https://www.unpac.me/results/e3c38c37-7da9-4088-8621-4fb3be75049f/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/549ef7c59ad7/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/549ef7c59ad79c923723c55ebfcb1b7a82515e6544198b86cb8d8a1c974dc56a

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/292617/

Comments