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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5aa8766bf3681668744a5f7af73072c5496f601fb15f79958bd78b4d2ded3979. 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: 5aa8766bf3681668744a5f7af73072c5496f601fb15f79958bd78b4d2ded3979
SHA3-384 hash: 11e639b7cc927c73802c78b423b0a749e28afde0931eb73a119b88db4f22d1c4f31c2aa80d1ad7ca6632ecd893c1b25a
SHA1 hash: cb137fd6580fff3b31027602a6b09343003aa539
MD5 hash: b1bcfbc60ec00a9e26e351b13918e330
humanhash: artist-johnny-hawaii-bravo
File name:5aa8766bf3681668744a5f7af73072c5496f601fb15f79958bd78b4d2ded3979
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2026-01-04 07:37:16 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 49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:+DqPoBhz1aRxcSUDk36SAEdhvxWa
TLSH T1E436CF42D5961EA4C9E10AFB227ADB10923E5F5986AFA13F1225410F1CB7F0C9DE5F2C
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 Butter1
Tags:dll eternalblue honeypot SMB WannaCry

Intelligence

File Origin
# of uploads :
1
# of downloads :
155
Origin country :
AU AU
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/47500/
Detection(s):
BC.Win.Exploit.Exe_With_CVE_2017_0147-6316126-2
Create hunting rule

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:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=695a1905e148d42004df32d8
Tags:
wannacry madi
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/5aa8766bf3681668744a5f7af73072c5496f601fb15f79958bd78b4d2ded3979
Verdict:
Malicious
File Type:
dll x32
First seen:
2018-05-22T01:00:00Z UTC
Last seen:
2022-12-12T15:59:00Z UTC
Hits:
~100
Detections:
HEUR:Trojan.Win32.EquationDrug.gen HEUR:Exploit.Win32.MS17-010.gen Trojan-Ransom.Wanna.UDP.C&C Trojan.Agentb.HTTP.C&C Trojan-Ransom.Win32.Wanna.zbu Trojan.Win32.EquationDrug.sb HEUR:Trojan-Ransom.Win32.Wanna.gen HEUR:Trojan.Win32.Generic PDM:Trojan.Win32.Generic Trojan-Ransom.Win32.Wanna.sb Trojan.Win32.Eb.b Trojan.Win32.Eb.a Trojan-Ransom.Wanna.HTTP.ServerRequest Exploit.Win32.MS17-010.kpn Trojan-Ransom.Win32.Wanna.m HEUR:Worm.Win32.Generic
Link:
https://opentip.kaspersky.com/5aa8766bf3681668744a5f7af73072c5496f601fb15f79958bd78b4d2ded3979/results?tab=lookup
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/888a9e0d-d31e-4951-81a1-e74ca9e52993
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5aa8766bf3681668744a5f7af73072c5496f601fb15f79958bd78b4d2ded3979
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE Memory-Mapped (Dump)
Link:
https://app.malva.re/file/b1bcfbc60ec00a9e26e351b13918e330
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5aa8766bf3681668744a5f7af73072c5496f601fb15f79958bd78b4d2ded3979/
Verdict:
Malicious
Threat:
Family.WANNACRY
Link:
https://tip.neiki.dev/file/5aa8766bf3681668744a5f7af73072c5496f601fb15f79958bd78b4d2ded3979
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-05-22 12:32:52 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
34 of 36 (94.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lkuhm27tnalgq5ckl55pomdsyvew6ya7wfpxtfml26fu2lpnhf4q._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/260106-jc3jaadq51/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Creates a large amount of network flows
Executes dropped EXE
Contacts a large (3334) amount of remote hosts
Wannacry
Wannacry family
Unpacked files
SH256 hash:
5aa8766bf3681668744a5f7af73072c5496f601fb15f79958bd78b4d2ded3979
MD5 hash:
b1bcfbc60ec00a9e26e351b13918e330
SHA1 hash:
cb137fd6580fff3b31027602a6b09343003aa539
Detections:
WannaCry
Create hunting rule
Link:
https://www.unpac.me/results/a6b92b9b-d809-494f-9db0-defee75b336f/
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
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:NET
Create hunting rule
Author:malware-lu
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: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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/47500/

Comments