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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 62c9a15ea404a7c537028bcabcb5753c0e6c535981c38eef417e6db0611f3eb7. 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: 13


Intelligence 13 IOCs YARA 7 File information Comments

SHA256 hash: 62c9a15ea404a7c537028bcabcb5753c0e6c535981c38eef417e6db0611f3eb7
SHA3-384 hash: aceb2cfe1fa7954165336b6adc3fd4cf19ecd7cdefa34130493cd2b15cf7dbbb9603e58981bacb7c2bc5f2af5816d252
SHA1 hash: c30d623fe679bfd3fd33c32dbd795a44f5a5c55e
MD5 hash: 4662b44e2534901aba780e2e601e8012
humanhash: music-don-football-beryllium
File name:4662b44e2534901aba780e2e601e8012
Download: download sample
Signature WannaCry
File size:5'267'459 bytes
First seen:2025-01-14 19:57:00 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 12288:T1bLgmluCti62ybaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjE:RbLgurihdmMSirYbcMNgef0QeQ
TLSH T18636239676AC91F8C21A6270E4774A21F2B73C7D21BD970FEB908A211C03791BB64F57
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 :
257
Origin country :
CA CA
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Tags:
ransomware shellcode virus madi
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto lolbin microsoft_visual_cc overlay ransomware smb threat wanna wannacry wannacrypt wannacryptor
Result
Threat name:
Wannacry
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Signature
AI detected suspicious sample
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)
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
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1591269 Sample: mlfk8sYaiy.dll Startdate: 14/01/2025 Architecture: WINDOWS Score: 100 40 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 2->40 42 ww25.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 2->42 44 77026.bodis.com 2->44 54 Suricata IDS alerts for network traffic 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus detection for URL or domain 2->58 60 7 other signatures 2->60 9 loaddll32.exe 1 2->9         started        11 mssecsvr.exe 12 2->11         started        signatures3 process4 dnsIp5 15 cmd.exe 1 9->15         started        17 rundll32.exe 9->17         started        20 rundll32.exe 1 9->20         started        23 conhost.exe 9->23         started        46 192.168.2.102 unknown unknown 11->46 48 192.168.2.104 unknown unknown 11->48 50 98 other IPs or domains 11->50 62 Connects to many different private IPs via SMB (likely to spread or exploit) 11->62 64 Connects to many different private IPs (likely to spread or exploit) 11->64 signatures6 process7 file8 25 rundll32.exe 15->25         started        52 Drops executables to the windows directory (C:\Windows) and starts them 17->52 27 mssecsvr.exe 13 17->27         started        34 C:\Windows\mssecsvr.exe, PE32 20->34 dropped signatures9 process10 file11 30 mssecsvr.exe 13 25->30         started        36 C:\WINDOWS\qeriuwjhrf (copy), PE32 27->36 dropped process12 file13 38 C:\Windows\tasksche.exe, PE32 30->38 dropped 66 Antivirus detection for dropped file 30->66 68 Multi AV Scanner detection for dropped file 30->68 70 Machine Learning detection for dropped file 30->70 signatures14
Threat name:
Win32.Ransomware.WannaCry
Status:
Malicious
First seen:
2018-11-09 04:37:01 UTC
File Type:
PE (Dll)
Extracted files:
3
AV detection:
35 of 38 (92.11%)
Threat level:
  5/5
Result
Malware family:
wannacry
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
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 (3218) amount of remote hosts
Wannacry
Wannacry family
Unpacked files
SH256 hash:
1a9d279f994ab6f39493fd26f2a24ffa59a76756bdd8426c748ed5c4d755fe26
MD5 hash:
99e72cdb999b98cf21369a90aa1d6552
SHA1 hash:
f5295b4ea514f5f5d9e11d39386b7cef4f5db96e
Detections:
WannaCry ransomware_windows_wannacry WannaCry_Ransomware WannaCry_Ransomware_Gen
SH256 hash:
62c9a15ea404a7c537028bcabcb5753c0e6c535981c38eef417e6db0611f3eb7
MD5 hash:
4662b44e2534901aba780e2e601e8012
SHA1 hash:
c30d623fe679bfd3fd33c32dbd795a44f5a5c55e
Detections:
WannaCry
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:malware-lu
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:SUSP_Imphash_Mar23_2
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
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:WannaCry_Ransomware
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