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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b04901e2af43dc45cf1a8912849c51f340c308159644fbc31cb58c8478e3faa. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b04901e2af43dc45cf1a8912849c51f340c308159644fbc31cb58c8478e3faa
SHA3-384 hash: 631185e2cb59992855a0bef1e885ad0ddab89fd8726a0a242fe61252942e249b24c689ca95985501232b1b7bbc8f091a
SHA1 hash: 4ad5ed670cc99370808f3c211ef15b7672e6b4c9
MD5 hash: 74bc261ad11bc9f1d57641998dc1fe69
humanhash: chicken-dakota-five-early
File name:74bc261ad11bc9f1d57641998dc1fe69
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2025-01-14 19:59:24 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'134 x WannaCry, 7 x Worm.Virut, 3 x Expiro)
ssdeep 49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:+DqPoBhz1aRxcSUDk36SAEdhvxWa9P5
TLSH T1F936336CB23CD6FCD10519B44463CA66A7733C6566FE6A0F8F4089671D03B6ABBD0B42
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 :
161
Origin country :
CA CA
Vendor Threat Intelligence
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-6888027-0
Create hunting rule

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

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

Win.Ransomware.WannaCry-10011460-0
Create hunting rule

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

Win.Ransomware.Wannacry-9982112-0
Create hunting rule

Win.Ransomware.Wannacryptor-9940180-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6786c2474487910100df06b5
Tags:
wannacry madi
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto lolbin microsoft_visual_cc overlay ransomware smb wanna wannacry wannacrypt wannacryptor
Link:
https://www.filescan.io/uploads/6786c245715c839cc31a9c8a/reports/3a1735c9-b217-464e-91e5-a84a15df1737/overview
Verdict:
Malicious
Labled as:
CVE-2017-0147
Link:
https://www.hybrid-analysis.com/sample/8b04901e2af43dc45cf1a8912849c51f340c308159644fbc31cb58c8478e3faa
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d16c3a8d-1746-43e8-b6a8-71c62f4fbe9d
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1591286
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: 1591286 Sample: hsmSW6Eifl.dll Startdate: 14/01/2025 Architecture: WINDOWS Score: 100 45 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 2->45 47 time.windows.com 2->47 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        16 svchost.exe 2->16         started        signatures3 process4 dnsIp5 18 cmd.exe 1 10->18         started        20 rundll32.exe 10->20         started        23 conhost.exe 10->23         started        25 rundll32.exe 1 10->25         started        49 192.168.2.102 unknown unknown 12->49 51 192.168.2.103 unknown unknown 12->51 53 98 other IPs or domains 12->53 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 27 rundll32.exe 18->27         started        63 Drops executables to the windows directory (C:\Windows) and starts them 20->63 29 mssecsvc.exe 7 20->29         started        process9 file10 33 mssecsvc.exe 7 27->33         started        43 C:\WINDOWS\qeriuwjhrf (copy), PE32 29->43 dropped 77 Drops executables to the windows directory (C:\Windows) and starts them 29->77 36 tasksche.exe 29->36         started        signatures11 process12 file13 41 C:\Windows\tasksche.exe, PE32 33->41 dropped 38 tasksche.exe 33->38         started        process14 signatures15 65 Detected Wannacry Ransomware 38->65 67 Antivirus detection for dropped file 38->67 69 Multi AV Scanner detection for dropped file 38->69 71 Machine Learning detection for dropped file 38->71
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8b04901e2af43dc45cf1a8912849c51f340c308159644fbc31cb58c8478e3faa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8b04901e2af43dc45cf1a8912849c51f340c308159644fbc31cb58c8478e3faa/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2017-08-29 15:27:06 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=rmcjahrk6q64ixhrvcisqsofd42aymeblfse7pbrznmmqr4oh6va._file
Result
Malware family:
wannacry
Create hunting rule
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
Link:
https://tria.ge/reports/250114-yq1deaxqet/
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 (3233) amount of remote hosts
Wannacry
Wannacry family
Unpacked files
SH256 hash:
06a24b8386dfff1fa844846aafd8d9c5fda5c5687a84a3b53ffaf62d995498e3
MD5 hash:
a089e2e733a58751cab58ba261acc543
SHA1 hash:
5dfeb7e02d81bf5eb545c8993e49d48853ab30a9
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/7156cee2-a46b-4739-b4f1-3c7439d4cbb2/
SH256 hash:
de8953d2e3e0c7fe91e7cf3a83f60641600bb900703c6155ded2b8169b639068
MD5 hash:
22a591ee2e6e2b72caf6f0bcee2dde20
SHA1 hash:
eb82d2f4555ba73f57216b6ee7bb754ec00a3c73
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/7156cee2-a46b-4739-b4f1-3c7439d4cbb2/
SH256 hash:
8b04901e2af43dc45cf1a8912849c51f340c308159644fbc31cb58c8478e3faa
MD5 hash:
74bc261ad11bc9f1d57641998dc1fe69
SHA1 hash:
4ad5ed670cc99370808f3c211ef15b7672e6b4c9
Detections:
WannaCry
Create hunting rule
Link:
https://www.unpac.me/results/7156cee2-a46b-4739-b4f1-3c7439d4cbb2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
WanaCrypt0r
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8b04901e2af43dc45cf1a8912849c51f340c308159644fbc31cb58c8478e3faa

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