MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83d1b64a9bca34640ec3722e9ef0dcb18669ec1b5a866f4e7517e760005b7d73. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83d1b64a9bca34640ec3722e9ef0dcb18669ec1b5a866f4e7517e760005b7d73
SHA3-384 hash: 40a29d31f75aacc138c15bb99a885de9bfff511fbf8dd0f0591a94ecf6611e0cf9b8fbf0993bc4043c4847c849dfbbc6
SHA1 hash: 119e0db6c12e3836bfd966d65286ffbb1c5adc9f
MD5 hash: 54b2bd4c6396ff50acd1710dbef840bf
humanhash: pip-montana-uncle-pizza
File name:54b2bd4c6396ff50acd1710dbef840bf
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 04:07:56 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (874 x WannaCry, 4 x Worm.Virut)
ssdeep 98304:q8qPoBSk36SAEdhvxWa9P593R8yAVp2He:q8qP3k3ZAEUadzR8yc4He
Threatray 13'188 similar samples on MalwareBazaar
TLSH T126363360A72CA2BCE0550AB44063052DB7773C6A97BF8B2FC7C087560D63B96BBD4B45
TrID 38.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
20.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
13.0% (.EXE) Win64 Executable (generic) (10523/12/4)
8.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter openctibr
Tags:dll OpenCTI.BR Sandboxed

Intelligence

File Origin
# of uploads :
1
# of downloads :
201
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292453/
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-6313787-0
Create hunting rule

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

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

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

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe greyware greyware overlay packed ransomware shell32.dll wanna wannacry worm
Link:
https://www.filescan.io/uploads/62d77fed0e298a94f3e164a8/reports/5e8cd208-1631-4bda-8ddd-040d7ed08425/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6a45dae8-4599-4153-a7bf-66f0cd082af5
Result
Threat name:
Wannacry, Virut
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1038019
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes memory attributes in foreign processes to executable or writable
Contains functionality to detect sleep reduction / modifications
Creates a thread in another existing process (thread injection)
Detected Wannacry Ransomware
Drops executables to the windows directory (C:\Windows) and starts them
Found evasive API chain (may execute only at specific dates)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to evade debugger and weak emulator (self modifying code)
Writes to foreign memory regions
Yara detected Virut
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 670513 Sample: 3KJepTa16e Startdate: 21/07/2022 Architecture: WINDOWS Score: 100 74 Snort IDS alert for network traffic 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Antivirus / Scanner detection for submitted sample 2->78 80 4 other signatures 2->80 10 loaddll32.exe 1 2->10         started        12 mssecsvc.exe 2->12         started        15 svchost.exe 2->15         started        17 4 other processes 2->17 process3 signatures4 19 cmd.exe 1 10->19         started        21 rundll32.exe 10->21         started        24 rundll32.exe 1 10->24         started        88 Maps a DLL or memory area into another process 12->88 27 svchost.exe 12->27 injected 29 svchost.exe 12->29 injected 31 dwm.exe 12->31 injected process5 file6 33 rundll32.exe 19->33         started        86 Drops executables to the windows directory (C:\Windows) and starts them 21->86 35 mssecsvc.exe 1 21->35         started        68 C:\Windows\mssecsvc.exe, PE32 24->68 dropped 39 BackgroundTransferHost.exe 49 27->39         started        41 BackgroundTransferHost.exe 13 27->41         started        43 backgroundTaskHost.exe 27->43         started        signatures7 process8 file9 45 mssecsvc.exe 1 33->45         started        66 C:\Windows\tasksche.exe, PE32 35->66 dropped 84 Drops executables to the windows directory (C:\Windows) and starts them 35->84 48 tasksche.exe 35->48         started        signatures10 process11 signatures12 90 Antivirus detection for dropped file 45->90 92 Multi AV Scanner detection for dropped file 45->92 94 Machine Learning detection for dropped file 45->94 98 6 other signatures 45->98 50 lsass.exe 45->50 injected 53 winlogon.exe 45->53 injected 55 fontdrvhost.exe 45->55 injected 57 10 other processes 45->57 96 Detected Wannacry Ransomware 48->96 process13 signatures14 82 Writes to foreign memory regions 50->82 59 svchost.exe 9 1 50->59         started        62 svchost.exe 50->62 injected 64 WMIADAP.exe 4 50->64         started        process15 dnsIp16 70 127.0.0.1 unknown unknown 59->70 72 192.168.2.1 unknown unknown 62->72
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/83d1b64a9bca34640ec3722e9ef0dcb18669ec1b5a866f4e7517e760005b7d73/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-12-04 09:43:27 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
36 of 41 (87.80%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qpi3msu3zi2gidwdoixj54g4wgdgt3a3lkdg6ttvc7twaac3pvzq._file
Verdict:
malicious
Similar samples:
2a5fcd571c34b11c0c630c8cf1f50a91a136e931e0057f7f8e3ca36ecd73d993
WannaCry
33b4058adaed65e17b07ee1c11af2c1a53e65dbd98f86cdfc72d841529160c14
WannaCry
69d11b63913d84025f1469123b83bb21066a274f2240f87e119f49362abbc9ca
WannaCry
7a77b4131e76bdbb8c8b4da304691aa87a61ba0ee79ff213c9eec6e1ee22e957
WannaCry
84382639746a15b8d22e688cc3dd7a30f6fda64f18580348b14c23aa34c8a6cd
WannaCry
8fa3eaa46c7d8d1f44a2eeca895f802f2aa7a2251bab347ccb765c72d63ccb58
WannaCry
a60b47e8c834aa97ddda9bd70dd41d8dc61649fd878ea913bc242ae79fe8cc77
WannaCry
b8e40ed3d1f01fd75f0f43d4784d92aaa9596f289f23c35969af1a4c1e149c30
WannaCry
f080554ba7990e5fc86b3e1384e4af2a48b9be0080e871a84ae613df13e7ea7b
WannaCry
fd9bb6bf944bfc60dee7e7c762615be99ce4bd822df2af5df8ec0bf8cab2d805
WannaCry
+ 13'178 additional samples on MalwareBazaar
Result
Malware family:
wannacry
Create hunting rule
Score:
  10/10
Tags:
family:wannacry discovery evasion ransomware worm
Link:
https://tria.ge/reports/220720-ep92nsccbk/
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Windows directory
Drops file in System32 directory
Creates a large amount of network flows
Contacts a large (1258) amount of remote hosts
Executes dropped EXE
Contacts a large (3163) amount of remote hosts
Modifies firewall policy service
Wannacry
Unpacked files
SH256 hash:
83d1b64a9bca34640ec3722e9ef0dcb18669ec1b5a866f4e7517e760005b7d73
MD5 hash:
54b2bd4c6396ff50acd1710dbef840bf
SHA1 hash:
119e0db6c12e3836bfd966d65286ffbb1c5adc9f
Link:
https://www.unpac.me/results/f2549221-d23f-4bed-aa9b-820be13eba6c/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/83d1b64a9bca/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/83d1b64a9bca34640ec3722e9ef0dcb18669ec1b5a866f4e7517e760005b7d73

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:WannaCry_Ransomware
Create hunting rule
Author:Florian Roth (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.

Cape
Cape
https://www.capesandbox.com/analysis/292453/

Comments