MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42bcd4c61e68a5dc2b7ce3b7cd2a61945ba3d8073380f46e47bb9cbdc295dc28. 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


Threat unknown


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 42bcd4c61e68a5dc2b7ce3b7cd2a61945ba3d8073380f46e47bb9cbdc295dc28
SHA3-384 hash: 9d110bcaa98921971036b15423ab79f788c85c73322179966b2a1a5c340e01e993006d58aabd55676f791cf4110e33c3
SHA1 hash: ebd528fe690321d579bbd87756a68b47ce2270d4
MD5 hash: 20f8019b945822f5f83a224a6f60a59b
humanhash: twenty-bakerloo-autumn-low
File name:WxWorkApis.dll
Download: download sample
File size:7'269'376 bytes
First seen:2024-05-31 04:59:26 UTC
Last seen:2024-05-31 05:20:09 UTC
File type:DLL dll
MIME type:application/x-dosexec
imphash 91fbf3d9e997c17a1ae5ef07f5027ad3
ssdeep 98304:UcThyLP7ww9Juv/BUkcYV8ASu0FL6olL/Ijct1J4cA1k5PVS0zzXAOV7Px1mDTrq:4LP0g5eNSPIcs1k1BzbAOVbHmDT
TLSH T1407633B752681288E0DDC83A89377EE5B1F613FBCB41A8BDAED964C537215A0D213D43
TrID 25.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
19.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.1% (.EXE) Win32 Executable (generic) (4504/4/1)
7.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
7.8% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter lontze7
Tags:backdoor

Intelligence

File Origin
# of uploads :
2
# of downloads :
109
Origin country :
GR GR
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.Crypt.4158.8829.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6659c45caf950bab634f9dedwin7simulatehigh_evasion
Tags:
Heur
Result
Verdict:
Clean
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crypto packed packed packed vmprotect
Link:
https://www.filescan.io/uploads/6659595369b20f1c4ea410af/reports/f6b77a92-d904-4f0f-89bb-0823fb61e065/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/42bcd4c61e68a5dc2b7ce3b7cd2a61945ba3d8073380f46e47bb9cbdc295dc28
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/53f6e637-0624-4e84-b973-cf0244b8b175
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1449954
Signature
Detected VMProtect packer
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1449954 Sample: WxWorkApis.dll Startdate: 31/05/2024 Architecture: WINDOWS Score: 56 19 Multi AV Scanner detection for submitted file 2->19 21 Detected VMProtect packer 2->21 23 Machine Learning detection for sample 2->23 7 loaddll32.exe 1 2->7         started        process3 process4 9 cmd.exe 1 7->9         started        11 rundll32.exe 7->11         started        13 rundll32.exe 7->13         started        15 2 other processes 7->15 process5 17 rundll32.exe 9->17         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/42bcd4c61e68a5dc2b7ce3b7cd2a61945ba3d8073380f46e47bb9cbdc295dc28
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/42bcd4c61e68a5dc2b7ce3b7cd2a61945ba3d8073380f46e47bb9cbdc295dc28/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2024-05-31 05:00:09 UTC
File Type:
PE (Dll)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ik6njrq6ncs5yk344o342ktbsrn2hwahgoapi3shxool3quv3qua._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  7/10
Tags:
vmprotect
Link:
https://tria.ge/reports/240531-fmznlafh3x/
Behaviour
Suspicious use of WriteProcessMemory
Unpacked files
SH256 hash:
42bcd4c61e68a5dc2b7ce3b7cd2a61945ba3d8073380f46e47bb9cbdc295dc28
MD5 hash:
20f8019b945822f5f83a224a6f60a59b
SHA1 hash:
ebd528fe690321d579bbd87756a68b47ce2270d4
Detections:
INDICATOR_EXE_Packed_VMProtect
Create hunting rule
Link:
https://www.unpac.me/results/515a832b-4d98-4881-a081-834b1927e597/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.56
Link:
https://yomi.yoroi.company/submissions/42bcd4c61e68a5dc2b7ce3b7cd2a61945ba3d8073380f46e47bb9cbdc295dc28

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:INDICATOR_EXE_Packed_VMProtect
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with VMProtect.

File information

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

Web download

DLL dll 42bcd4c61e68a5dc2b7ce3b7cd2a61945ba3d8073380f46e47bb9cbdc295dc28

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2869849/
  
Delivery method
Distributed via web download

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryA
WIN_BASE_IO_APICan Create FilesVERSION.dll::GetFileVersionInfoW
WIN_CRYPT_APIUses Windows Crypt APICRYPT32.dll::CertFindCertificateInStore
ADVAPI32.dll::CryptAcquireContextA
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpenRequest

Comments