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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7403107fa5ebed299e06eaf5a6e04c1df1ffc794a02db4b464374be82344559. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7403107fa5ebed299e06eaf5a6e04c1df1ffc794a02db4b464374be82344559
SHA3-384 hash: 0d1a02540a4f3e1dba69e1c6642803a17f34718cd8d2dac962d85f7e5bfb031605511ea9c385e9fb7e150809e077977e
SHA1 hash: 283482c769ed415b10bddc209836dc6c0e1ba1db
MD5 hash: c3d8b9d5bb048eebca994cdce641f885
humanhash: bluebird-floor-nitrogen-ink
File name:a7403107fa5ebed299e06eaf5a6e04c1df1ffc794a02db4b464374be82344559
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2026-01-04 07:38:42 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 98304:+DqPoBhz1aRxcSUDk36SAEdhvxWa9P593RkAVp2H:+DqPe1Cxcxk3ZAEUadzRkc4H
Threatray 1'042 similar samples on MalwareBazaar
TLSH T139363344E2AC66B8E1A10EF504B38B29A7773C559ABA9A1F5380415B1C73F4EEFD0F05
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 :
148
Origin country :
AU AU
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/47506/
Detection(s):
Win.Ransomware.Wanna-9769986-0
Create hunting rule

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

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

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

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

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

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

Win.Ransomware.Wanna-6888027-0
Create hunting rule

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

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

BC.Win.Exploit.Exe_With_CVE_2017_0147-6316126-2
Create hunting rule

Win.Exploit.Doublepulsar-7427328-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=695a1929d2357cccc3df4148
Tags:
wannacry madi
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto crypto evasive lolbin microsoft_visual_cc overlay overlay packed ransomware ransomware smb wanna wannacry wannacry wannacrypt wannacryptor
Link:
https://www.filescan.io/uploads/695a1922127d6a14e0cef4ab/reports/c6019d7c-829d-4b24-868e-f42bfe0a4cda/overview
Verdict:
Malicious
Labled as:
CVE-2017-0147
Link:
https://www.hybrid-analysis.com/sample/a7403107fa5ebed299e06eaf5a6e04c1df1ffc794a02db4b464374be82344559
Verdict:
Malicious
File Type:
dll x32
First seen:
2017-06-11T03:06:00Z UTC
Last seen:
2022-12-12T12:53:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/a7403107fa5ebed299e06eaf5a6e04c1df1ffc794a02db4b464374be82344559/results?tab=lookup
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4a2d2a1c-0f15-4528-8d08-329021b6579a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a7403107fa5ebed299e06eaf5a6e04c1df1ffc794a02db4b464374be82344559
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE Memory-Mapped (Dump)
Link:
https://app.malva.re/file/c3d8b9d5bb048eebca994cdce641f885
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7403107fa5ebed299e06eaf5a6e04c1df1ffc794a02db4b464374be82344559/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2017-06-13 22:15:21 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=u5adcb72l27nfgpan2xvu3qeyhpr77dzjibnws2gin2l5aruivmq._file
Verdict:
malicious
Label(s):
wannacryptor
Create hunting rule
Similar samples:
24aefa1fed4613907f97ff6c4e6a9376d70ea2c3ea3477d72ea5f1f28bb103cc
WannaCry
36dde0acce43dac1e5baa8e4b121a96f9aa0315c4386a203f6ea4e56534c7859
WannaCry
38dee9dac68372b67ca358f8acce624c8d7f7c871a540cc43744eae196908a59
WannaCry
55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
WannaCry
73882be52f021ab5e22df371a4ed3ff95e5e0c50cdb6a5126133833037fa5497
WannaCry
b95ce7cf432b0a9af6affc3637c377b7aea5da351b433513e4136f4741a43357
WannaCry
bb1611ffc0faf19c968b81c81f45490692be6a0ed26facc377790aae798e2271
WannaCry
cb99a87b7aa2948a6229b949daad62ae9cbadef89969a8238b6f092de382edfa
WannaCry
d6a6375525eea8dd410d8dd6a98130f607b665e3ab7cd2824d84bdab5db66381
WannaCry
ec29f4db6e43c8bfad91f4d2910c6db42b975d33f7a51c69ea9e0dc9d400584f
WannaCry
+ 1'032 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/260106-jc4fkset9a/
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 (3369) amount of remote hosts
Wannacry
Wannacry family
Unpacked files
SH256 hash:
a7403107fa5ebed299e06eaf5a6e04c1df1ffc794a02db4b464374be82344559
MD5 hash:
c3d8b9d5bb048eebca994cdce641f885
SHA1 hash:
283482c769ed415b10bddc209836dc6c0e1ba1db
Detections:
WannaCry
Create hunting rule
Link:
https://www.unpac.me/results/1edfb231-cedc-4e48-a483-131ec2ad3846/
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: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/47506/

Comments