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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8cfa9a30a3a91265ef0c1854ccf055befacdb8370aebc166f111cc4f40c01ff. 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: 11


Intelligence 11 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e8cfa9a30a3a91265ef0c1854ccf055befacdb8370aebc166f111cc4f40c01ff
SHA3-384 hash: ab91b3295510617ea803213ba8e8a03d7b5b0e87f63eb352312b01f4326999bdbeb35d596ce762fcf1bf92db3f5a6f7d
SHA1 hash: 2df79edb7145ec71f3634c0dc12b8a29099aa9ad
MD5 hash: ac3ec31b0b2c0f5e017f662ba7e36a67
humanhash: oxygen-earth-kansas-nuts
File name:mbupload-o20vo8lp.bin
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2026-10-11 16:26:04 UTC
Last seen:Never
File type:DLL dll
MIME type:application/vnd.microsoft.portable-executable
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'133 x WannaCry, 7 x Worm.Virut, 3 x Expiro)
ssdeep 12288:WVbLgPlumQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUj:gbLgdlQhfdmMSirYbcMNgef0QeQ
TLSH T1F236225A766C91FCC11A6274A4734926E6B33CAA227D970F8F948B620C13750FF74B4B
TrID 39.7% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
21.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
8.3% (.EXE) Win64 Executable (generic) (6522/11/2)
6.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter wristhulk
Tags:dionaea dll honeypot WannaCry


Avatar
wristhulk
Captured by a Dionaea honeypot at an unknown time.

Intelligence

File Origin
# of uploads :
1
# of downloads :
183
Origin country :
US US
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/91455/
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-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.Wannacryptor-9940180-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a service
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug cmd crypto lolbin masquerade microsoft_visual_cc overlay ransomware ransomware ransomware reconnaissance smb wannacryptor wannacryptor
Link:
https://www.filescan.io/uploads/6acbb8acfbc98fb8222a81a5/reports/16e04baf-b489-4ee6-beb5-81d213a8861c/overview
Verdict:
Malicious
Labled as:
CVE-2017-0147
Link:
https://www.hybrid-analysis.com/sample/e8cfa9a30a3a91265ef0c1854ccf055befacdb8370aebc166f111cc4f40c01ff
Verdict:
Malicious
File Type:
dll x32
First seen:
2017-11-10T13:16:00Z UTC
Last seen:
2022-03-18T16:05:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/e8cfa9a30a3a91265ef0c1854ccf055befacdb8370aebc166f111cc4f40c01ff/results?tab=lookup
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6b56841e-3146-4da3-a034-580548732a92
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e8cfa9a30a3a91265ef0c1854ccf055befacdb8370aebc166f111cc4f40c01ff
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE Memory-Mapped (Dump)
Link:
https://app.malva.re/file/ac3ec31b0b2c0f5e017f662ba7e36a67
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e8cfa9a30a3a91265ef0c1854ccf055befacdb8370aebc166f111cc4f40c01ff/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2017-11-01 17:40:09 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=5dh2tiykhkismxxqygcuztyflpx2zw4docxlyftpceomj5amah7q._file
Result
Malware family:
wannacry
Create hunting rule
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
Link:
https://tria.ge/reports/261011-txmnnsxv5k/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Drops file in Windows directory
Creates a large amount of network flows
Executes dropped EXE
Contacts a large (3360) amount of remote hosts
Family: Wannacry
Unpacked files
SH256 hash:
e8cfa9a30a3a91265ef0c1854ccf055befacdb8370aebc166f111cc4f40c01ff
MD5 hash:
ac3ec31b0b2c0f5e017f662ba7e36a67
SHA1 hash:
2df79edb7145ec71f3634c0dc12b8a29099aa9ad
Detections:
WannaCry
Create hunting rule
ransomware_windows_wannacry
Create hunting rule
SUSP_Imphash_Mar23_2
Create hunting rule
WannaCry_Ransomware
Create hunting rule
Link:
https://www.unpac.me/results/67405e91-165a-4bde-8364-dbcfca88e8bc/
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
Rule name:WannaCry_Ransomware_Main
Create hunting rule
Author:Bristol Agri-Tech Solutions SOC
Description:Detects WannaCry ransomware main executable
Rule name:WIN_Malware_ACRStealer_ForgeAuto_1084c837_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects ACRStealer (pe, etat extrait)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

WannaCry

DLL dll e8cfa9a30a3a91265ef0c1854ccf055befacdb8370aebc166f111cc4f40c01ff

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/91455/

Comments