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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 527d79357bf1ec94197e8e9cd404073060508ad7a77b714cc7c2f2e34ad08623. 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 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 527d79357bf1ec94197e8e9cd404073060508ad7a77b714cc7c2f2e34ad08623
SHA3-384 hash: 462d527c4e3f3c5819664466b5790784a42ff8272bc24e5305f0332a3f4c39adbe041a4a89f5022095ee366aa9cc2ed2
SHA1 hash: 13d9812a91640771c4acc6f98aef1d1b28a38b1c
MD5 hash: 40730e4027614dd45d6aae3f4dca0a48
humanhash: monkey-montana-mirror-comet
File name:LisectAVT_2403002A_327.dll
Download: download sample
Signature WannaCry
Create hunting rule
File size:5'267'470 bytes
First seen:2024-07-25 00:20:52 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 12288:TQbLgmluyQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXF5:MbLguVQhfdmMSirYbcMNgef0QeQjG
Threatray 1'034 similar samples on MalwareBazaar
TLSH T12436235A766C91FCC10A627574634926E6B73C5A22BD960F8F908B520C137A0FF78F4B
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) (10523/12/4)
7.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter Anonymous
Tags:dll exe WannaCry


Avatar
Anonymous
this malware sample is very nasty!

Intelligence

File Origin
# of uploads :
1
# of downloads :
340
Origin country :
CN CN
Vendor Threat Intelligence
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-10011460-0
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

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a19a7cae21d7902eaff5b3
Tags:
Encryption Generic Infostealer Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto epmicrosoft_visual_cc filecoder lolbin microsoft_visual_cc overlay packed ransomware shell32 wanna wannacry wannacrypt wannacryptor wcry
Link:
https://www.filescan.io/uploads/66a19a744c5c17942a7d2e29/reports/8594a57b-736a-4f6d-b6c7-ad5aa37fe9c5/overview
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9c845b7e-1f48-4845-969a-8e62ba56e27d
Result
Threat name:
Wannacry
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1482334
Behaviour
Behavior Graph:
n/a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/527d79357bf1ec94197e8e9cd404073060508ad7a77b714cc7c2f2e34ad08623
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/527d79357bf1ec94197e8e9cd404073060508ad7a77b714cc7c2f2e34ad08623/
Threat name:
Win32.Ransomware.WannaCry
Create hunting rule
Status:
Malicious
First seen:
2024-07-25 00:21:14 UTC
File Type:
PE (Dll)
Extracted files:
3
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kj6xsnl36hwjigl6r2onibahgbqfbcwxu55xctghylzogswqqyrq._file
Verdict:
malicious
Similar samples:
24aefa1fed4613907f97ff6c4e6a9376d70ea2c3ea3477d72ea5f1f28bb103cc
WannaCry
36dde0acce43dac1e5baa8e4b121a96f9aa0315c4386a203f6ea4e56534c7859
WannaCry
38dee9dac68372b67ca358f8acce624c8d7f7c871a540cc43744eae196908a59
WannaCry
73882be52f021ab5e22df371a4ed3ff95e5e0c50cdb6a5126133833037fa5497
WannaCry
b95ce7cf432b0a9af6affc3637c377b7aea5da351b433513e4136f4741a43357
WannaCry
bb1611ffc0faf19c968b81c81f45490692be6a0ed26facc377790aae798e2271
WannaCry
c1311ce03beb66c468b2478c728706a5a24ce90452bce5b489be8753cbb25dd1
WannaCry
cb99a87b7aa2948a6229b949daad62ae9cbadef89969a8238b6f092de382edfa
WannaCry
d6a6375525eea8dd410d8dd6a98130f607b665e3ab7cd2824d84bdab5db66381
WannaCry
ec29f4db6e43c8bfad91f4d2910c6db42b975d33f7a51c69ea9e0dc9d400584f
WannaCry
+ 1'024 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/240725-ancybszake/
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 (3295) amount of remote hosts
Wannacry
Unpacked files
SH256 hash:
a2d1a5c8f4d7f08154eda33a3dc28e6b0553326ec38c815721337146bb40f0c6
MD5 hash:
9e40b62a48fb878997f28035d6f61d2c
SHA1 hash:
76fd3153bbeed23ad36e62ffd9690d1b6ce75bd3
Detections:
WannaCry_Ransomware
Create hunting rule
Win32_Ransomware_WannaCry
Create hunting rule
ransomware_windows_wannacry
Create hunting rule
Link:
https://www.unpac.me/results/9b04e6ff-b514-4952-91b9-32ad4ecef569/
SH256 hash:
b8cb9c5bc6a7063389be4a06d991d936278d45e305b9bac389b0eaf1980eb736
MD5 hash:
0dec32bc803fff82c3dbbade9b3d4b98
SHA1 hash:
afb74cb048b587cc8138ff0730d9970953e86b6e
Detections:
WannaCry_Ransomware_Gen
Create hunting rule
WannaCry_Ransomware
Create hunting rule
Win32_Ransomware_WannaCry
Create hunting rule
ransomware_windows_wannacry
Create hunting rule
Link:
https://www.unpac.me/results/9b04e6ff-b514-4952-91b9-32ad4ecef569/
SH256 hash:
527d79357bf1ec94197e8e9cd404073060508ad7a77b714cc7c2f2e34ad08623
MD5 hash:
40730e4027614dd45d6aae3f4dca0a48
SHA1 hash:
13d9812a91640771c4acc6f98aef1d1b28a38b1c
Detections:
WannaCry
Create hunting rule
SUSP_Imphash_Mar23_2
Create hunting rule
WannaCry_Ransomware
Create hunting rule
ransomware_windows_wannacry
Create hunting rule
Link:
https://www.unpac.me/results/9b04e6ff-b514-4952-91b9-32ad4ecef569/
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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_indirect_function_call_3
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
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: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.

Malspam

WannaCry

DLL dll 527d79357bf1ec94197e8e9cd404073060508ad7a77b714cc7c2f2e34ad08623

(this sample)

  
Link
https://bbs.kafan.cn/forum-31-1.html
  
Delivery method
Distributed via e-mail attachment

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