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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b1ba31dfc982db0bad465668a06e241534ddb379d4ee3cf33946b29cddd994c. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9b1ba31dfc982db0bad465668a06e241534ddb379d4ee3cf33946b29cddd994c
SHA3-384 hash: 4a499223a52f11de5eaf5fda6d2ecd75843ef063b90fba2c81f98cecd0b7e47e5efe491ddc05da25d82d989100014f8d
SHA1 hash: 471955bc47b05691cb6e4d745b08ca6f5de3d335
MD5 hash: 7d7bf2240e76f419611094080e31948b
humanhash: sink-fanta-august-cardinal
File name:7d7bf2240e76f419611094080e31948b
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'459 bytes
First seen:2025-01-14 19:59:44 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:MnFQqMSPbcBVQej/L+TSqTdX1HkQ6Rdhnv:seqPoBhzLcSUDk7dhv
TLSH T153362319717CD2FCC60926B464678A2792B33C6626FE560F8F408B661C13B15FBA8B47
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 mentality
Tags:dll exe WannaCry

Intelligence

File Origin
# of uploads :
1
# of downloads :
185
Origin country :
CA CA
Vendor Threat Intelligence
Detection(s):
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:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6786c24baa9c8e7858dec32b
Tags:
wannacry madi
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto lolbin microsoft_visual_cc overlay ransomware smb threat wanna wannacry wannacryptor
Link:
https://www.filescan.io/uploads/6786c248f6ef415507db7a5e/reports/ab365b84-ee68-4779-8273-93cd79d05e45/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/9b1ba31dfc982db0bad465668a06e241534ddb379d4ee3cf33946b29cddd994c
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a58be04e-d1a3-4750-88cb-2f2add79b79e
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1591284
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Connects to many different private IPs (likely to spread or exploit)
Connects to many different private IPs via SMB (likely to spread or exploit)
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 dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Wannacry ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1591284 Sample: eIZi481eP6.dll Startdate: 14/01/2025 Architecture: WINDOWS Score: 100 33 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 2->33 35 ww25.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com 2->35 37 77026.bodis.com 2->37 47 Suricata IDS alerts for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 5 other signatures 2->53 8 loaddll32.exe 1 2->8         started        10 mssecsvr.exe 12 2->10         started        signatures3 process4 dnsIp5 14 rundll32.exe 8->14         started        16 rundll32.exe 8->16         started        19 cmd.exe 1 8->19         started        21 conhost.exe 8->21         started        39 192.168.2.102 unknown unknown 10->39 41 192.168.2.103 unknown unknown 10->41 43 98 other IPs or domains 10->43 61 Connects to many different private IPs via SMB (likely to spread or exploit) 10->61 63 Connects to many different private IPs (likely to spread or exploit) 10->63 signatures6 process7 signatures8 23 mssecsvr.exe 13 14->23         started        45 Drops executables to the windows directory (C:\Windows) and starts them 16->45 26 mssecsvr.exe 13 16->26         started        28 rundll32.exe 1 19->28         started        process9 file10 55 Antivirus detection for dropped file 23->55 57 Multi AV Scanner detection for dropped file 23->57 59 Machine Learning detection for dropped file 23->59 31 C:\Windows\mssecsvr.exe, PE32 28->31 dropped signatures11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9b1ba31dfc982db0bad465668a06e241534ddb379d4ee3cf33946b29cddd994c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9b1ba31dfc982db0bad465668a06e241534ddb379d4ee3cf33946b29cddd994c/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2018-05-31 04:55:11 UTC
File Type:
PE (Dll)
Extracted files:
4
AV detection:
35 of 38 (92.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tmn2ghp4taw3bowumvtiubxcifju3wzxtvhohtztsrvstto5tfga._file
Result
Malware family:
wannacry
Create hunting rule
Score:
  10/10
Tags:
family:wannacry discovery ransomware worm
Link:
https://tria.ge/reports/250114-yq1deaznhq/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Creates a large amount of network flows
Executes dropped EXE
Contacts a large (3253) amount of remote hosts
Wannacry
Wannacry family
Unpacked files
SH256 hash:
d01b730f76d491a25306d09e6bed92f60b45f0c33c36750344cfd302c47fa4a3
MD5 hash:
32b25a77514ff5c3035dc0cd4e5da90a
SHA1 hash:
fe0bd43df0bcc93c1c47c7e1a3a0a18c6c89dcd4
Detections:
WannaCry
Create hunting rule
Win32_Ransomware_WannaCry
Create hunting rule
ransomware_windows_wannacry
Create hunting rule
WannaCry_Ransomware
Create hunting rule
Link:
https://www.unpac.me/results/508ac7ea-167e-4ed7-a45c-77385a6d55e7/
SH256 hash:
f2d55234076dc716e70d7abfbbb987777dae30ae909e24e378c0149d8a33e702
MD5 hash:
22b8338fbc74604540ad07bf1327850f
SHA1 hash:
a66316011141af6877c361e0f74be505db53cfbe
Detections:
WannaCry
Create hunting rule
Win32_Ransomware_WannaCry
Create hunting rule
ransomware_windows_wannacry
Create hunting rule
WannaCry_Ransomware
Create hunting rule
WannaCry_Ransomware_Gen
Create hunting rule
Link:
https://www.unpac.me/results/508ac7ea-167e-4ed7-a45c-77385a6d55e7/
SH256 hash:
9b1ba31dfc982db0bad465668a06e241534ddb379d4ee3cf33946b29cddd994c
MD5 hash:
7d7bf2240e76f419611094080e31948b
SHA1 hash:
471955bc47b05691cb6e4d745b08ca6f5de3d335
Detections:
WannaCry
Create hunting rule
Link:
https://www.unpac.me/results/508ac7ea-167e-4ed7-a45c-77385a6d55e7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9b1ba31dfc982db0bad465668a06e241534ddb379d4ee3cf33946b29cddd994c

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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::CloseHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA

Comments