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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1950a1ca8fe42f6a5cf96f993ae3b77bde0611a220a8a8505beffc7839aaffd. 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 7 File information Comments

SHA256 hash: b1950a1ca8fe42f6a5cf96f993ae3b77bde0611a220a8a8505beffc7839aaffd
SHA3-384 hash: 404a3f6af38420c4015de459d3a2d1c13597be85312bd14c506044c9840fed22fb96ac9d20a0a514050d5824680aee86
SHA1 hash: ed9a43cdbf5906b29005cd4f5b82a90f974c167c
MD5 hash: ee045d4a29953db46e39799dd601691a
humanhash: spaghetti-lactose-alabama-six
File name:ee045d4a29953db46e39799dd601691a
Download: download sample
Signature WannaCry
File size:5'267'459 bytes
First seen:2025-01-14 21:40:26 UTC
Last seen:2025-01-14 22:52:18 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'124 x WannaCry, 7 x Worm.Virut, 2 x Expiro)
ssdeep 98304:MDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:MDqPe1Cxcxk3ZAEUadzR8yc4H
Threatray 1'039 similar samples on MalwareBazaar
TLSH T1ED363394622CB2FCF0440EB44463896BB7B33C6967BA5E1F8BC086670D43B5BAFD0641
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 :
3
# of downloads :
193
Origin country :
CA CA
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
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 ransomware smb wanna wannacry wannacryptor
Result
Threat name:
Wannacry
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Drops executables to the windows directory (C:\Windows) and starts them
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1591361 Sample: hzQNazOx3Z.dll Startdate: 14/01/2025 Architecture: WINDOWS Score: 100 27 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 2->27 31 Tries to download HTTP data from a sinkholed server 2->31 33 Suricata IDS alerts for network traffic 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 5 other signatures 2->37 9 loaddll32.exe 1 2->9         started        signatures3 process4 process5 11 rundll32.exe 9->11         started        14 cmd.exe 1 9->14         started        16 conhost.exe 9->16         started        18 rundll32.exe 1 9->18         started        signatures6 39 Drops executables to the windows directory (C:\Windows) and starts them 11->39 20 mssecsvc.exe 6 11->20         started        22 rundll32.exe 14->22         started        process7 process8 24 mssecsvc.exe 6 22->24         started        dnsIp9 29 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 104.16.167.228, 49744, 49759, 80 CLOUDFLARENETUS United States 24->29
Threat name:
Win32.Ransomware.WannaCry
Status:
Malicious
First seen:
2017-05-30 22:39:54 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
36 of 38 (94.74%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Behaviour
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Executes dropped EXE
Unpacked files
SH256 hash:
2584e1521065e45ec3c17767c065429038fc6291c091097ea8b22c8a502c41dd
MD5 hash:
7f7ccaa16fb15eb1c7399d422f8363e8
SHA1 hash:
bd44d0ab543bf814d93b719c24e90d8dd7111234
Detections:
WannaCry Win32_Ransomware_WannaCry ransomware_windows_wannacry WannaCry_Ransomware
SH256 hash:
f8812f1deb8001f3b7672b6fc85640ecb123bc2304b563728e6235ccbe782d85
MD5 hash:
f107a717f76f4f910ae9cb4dc5290594
SHA1 hash:
51e4307093f8ca8854359c0ac882ddca427a813c
Detections:
WannaCry Win32_Ransomware_WannaCry ransomware_windows_wannacry WannaCry_Ransomware WannaCry_Ransomware_Gen
SH256 hash:
b1950a1ca8fe42f6a5cf96f993ae3b77bde0611a220a8a8505beffc7839aaffd
MD5 hash:
ee045d4a29953db46e39799dd601691a
SHA1 hash:
ed9a43cdbf5906b29005cd4f5b82a90f974c167c
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