MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25dfafdba40d4fe12ca9e8665529db03e7d21234b2bec00ac8e97cce4f84d54d. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 25dfafdba40d4fe12ca9e8665529db03e7d21234b2bec00ac8e97cce4f84d54d
SHA3-384 hash: 742508837c8f19090be6ce21a03ce23a659f3a33e9020aeee8ff15c2a1ae68e067c9bee54bfcd7065fdce0d836df58ca
SHA1 hash: d68271778f94dbefa05052005c328fca8eadb06c
MD5 hash: 700676152020869995f46970dc5c2dd2
humanhash: michigan-pip-stream-saturn
File name:700676152020869995f46970dc5c2dd2
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2022-07-20 00:53:54 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 2e5708ae5fed0403e8117c645fb23e5b (1'122 x WannaCry, 7 x Worm.Virut, 2 x Expiro)
ssdeep 98304:+DqPoBhz1aRxcSUDk36SAEdhvxWa9P593R:+DqPe1Cxcxk3ZAEUadzR
Threatray 64 similar samples on MalwareBazaar
TLSH T1DD36E001D2E41A60E6F20AF629B9DB10833A7E56995B976E1621414F0C73F1CDEE6F3C
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 :
188
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/292112/
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-6888027-0
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
Searching for the window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe greyware greyware overlay packed packed ransomware shell32.dll wanna wannacry worm
Link:
https://www.filescan.io/uploads/62d75272b1b58ed7a1732e52/reports/727ab66e-c576-4075-bea8-452232ae5cd6/overview
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/505d4944-f230-4079-ba25-c0543fdd62d7
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1038316
Signature
Accesses ntoskrnl, likely to find offsets for exploits
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Changes security center settings (notifications, updates, antivirus, firewall)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Snort IDS alert for network traffic
Tries to download HTTP data from a sinkholed server
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 670813 Sample: Liw5SS6our Startdate: 21/07/2022 Architecture: WINDOWS Score: 100 66 Tries to download HTTP data from a sinkholed server 2->66 68 Snort IDS alert for network traffic 2->68 70 Multi AV Scanner detection for domain / URL 2->70 72 7 other signatures 2->72 9 loaddll32.exe 1 2->9         started        11 mssecsvc.exe 2->11         started        15 svchost.exe 2->15         started        17 12 other processes 2->17 process3 dnsIp4 19 cmd.exe 1 9->19         started        21 rundll32.exe 9->21         started        24 rundll32.exe 1 9->24         started        60 104.17.244.81, 49743, 49796, 80 CLOUDFLARENETUS United States 11->60 62 192.168.2.120 unknown unknown 11->62 64 99 other IPs or domains 11->64 84 Connects to many different private IPs via SMB (likely to spread or exploit) 11->84 86 Connects to many different private IPs (likely to spread or exploit) 11->86 88 Changes security center settings (notifications, updates, antivirus, firewall) 15->88 27 MpCmdRun.exe 1 15->27         started        90 Query firmware table information (likely to detect VMs) 17->90 29 WerFault.exe 7 17->29         started        signatures5 process6 file7 31 rundll32.exe 19->31         started        76 Drops executables to the windows directory (C:\Windows) and starts them 21->76 33 mssecsvc.exe 7 21->33         started        52 C:\Windows\mssecsvc.exe, PE32 24->52 dropped 38 conhost.exe 27->38         started        78 Accesses ntoskrnl, likely to find offsets for exploits 29->78 signatures8 process9 dnsIp10 40 mssecsvc.exe 7 31->40         started        56 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 33->56 50 C:\WINDOWS\qeriuwjhrf (copy), PE32 33->50 dropped 74 Drops executables to the windows directory (C:\Windows) and starts them 33->74 45 tasksche.exe 33->45         started        file11 signatures12 process13 dnsIp14 58 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com 40->58 54 C:\Windows\tasksche.exe, PE32 40->54 dropped 80 Antivirus detection for dropped file 40->80 82 Machine Learning detection for dropped file 40->82 47 tasksche.exe 40->47         started        file15 signatures16 process17 signatures18 92 Detected Wannacry Ransomware 47->92 94 Antivirus detection for dropped file 47->94 96 Machine Learning detection for dropped file 47->96
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/25dfafdba40d4fe12ca9e8665529db03e7d21234b2bec00ac8e97cce4f84d54d/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2017-08-02 12:37:20 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
37 of 41 (90.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=exp27w5ebvh6clfj5btfkko3apt5eeruwk7macwi5f6m4t4e2vgq._file
Verdict:
malicious
Similar samples:
138887bdba248dab37aaa98cf2d7f06445b8018a24a9a2ffeb70da5a1d1be038
WannaCry
287889afcc2b86f6b705c55882880954e41f15ecbf3441980a567f8ff10605a3
WannaCry
4e9378241b5fb2cd33ba7562917608e61ee1d3aeed939eb60e005b9b084380ab
WannaCry
59eee303cf6cbf5bc6019b07f3e49714cbcc8f98639b36d55a9e0289de456c91
WannaCry
5e014f792276618ccc7e7401207fb2758097f440ce28aeb70a024b6ed4251aa1
WannaCry
75eaa5ae72f3f366f85c32532a66aed56c797def2c5d67d7d53c233080555958
WannaCry
8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021
WannaCry
aec918fc5527c8960921c04c7abbcf3aadcb5d8f0aa6862c6d6be68e28771a68
WannaCry
b05845d73604d9a17d72de5d9db27e59a89e6a979fbc71a384646a558b88de82
WannaCry
fdca1e0c8951ddfbea1f9a4fbdd44aff52f3608396788add49b99c3f0b482e09
WannaCry
+ 54 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/220720-a879zaaddn/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Drops file in System32 directory
Creates a large amount of network flows
Executes dropped EXE
Contacts a large (3185) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
25dfafdba40d4fe12ca9e8665529db03e7d21234b2bec00ac8e97cce4f84d54d
MD5 hash:
700676152020869995f46970dc5c2dd2
SHA1 hash:
d68271778f94dbefa05052005c328fca8eadb06c
Link:
https://www.unpac.me/results/9d34f678-4fb1-4dfe-940f-ffcb133e2a00/
Malware family:
WannaCry
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/25dfafdba40d/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/25dfafdba40d4fe12ca9e8665529db03e7d21234b2bec00ac8e97cce4f84d54d

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/292112/

Comments