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Windows Analysis Report
Blake3.dll.dll

Overview

General Information

Sample name:	Blake3.dll.dll (renamed file extension from exe to dll)
Original sample name:	Blake3.dll.exe
Analysis ID:	1523621
MD5:	d463cdfb8a433d9f916cf3bc6fd82109
SHA1:	1ee9185142ff8329eb0ac10535e9b2fb963651fe
SHA256:	230bd8803629aabe80bf4b4a109787b330ca1c8200b6a04ccd91d5f480c5446e
Tags:	exeuser-bdmss
Infos:

Detection

Score:	22
Range:	0 - 100
Whitelisted:	false
Confidence:	80%

Signatures

AI detected suspicious sample

Checks if the current process is being debugged

Creates a process in suspended mode (likely to inject code)

PE file contains sections with non-standard names

Program does not show much activity (idle)

Sample execution stops while process was sleeping (likely an evasion)

Classification

Process Tree

System is w10x64

loaddll64.exe (PID: 7268 cmdline: loaddll64.exe "C:\Users\user\Desktop\Blake3.dll.dll" MD5: 763455F9DCB24DFEECC2B9D9F8D46D52)

conhost.exe (PID: 7276 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cmd.exe (PID: 7320 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Blake3.dll.dll",#1 MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE)

rundll32.exe (PID: 7344 cmdline: rundll32.exe "C:\Users\user\Desktop\Blake3.dll.dll",#1 MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 7328 cmdline: rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Finalize MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 7436 cmdline: rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Free MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 7464 cmdline: rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Init MD5: EF3179D498793BF4234F708D3BE28633)

cleanup

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

AI detected suspicious sample

Source: Submited Sample

Integrated Neural Analysis Model: Matched 87.8% probability

Source: Blake3.dll.dll

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT

Source: Blake3.dll.dll

Static PE information: Section: .reloc IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE

Source: classification engine

Classification label: sus22.winDLL@12/0@0/0

Source: C:\Windows\System32\conhost.exe

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:7276:120:WilError_03

Source: Blake3.dll.dll

Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ

Source: C:\Windows\System32\loaddll64.exe

Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Source: C:\Windows\System32\loaddll64.exe

Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Finalize

Source: unknown	Process created: C:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\Blake3.dll.dll"
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Blake3.dll.dll",#1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Finalize
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Blake3.dll.dll",#1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Free
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Init
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Blake3.dll.dll",#1	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Finalize	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Free	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Init	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Blake3.dll.dll",#1	Jump to behavior

Source: C:\Windows\System32\loaddll64.exe	Section loaded: apphelp.dll			Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Section loaded: btcr.dll			Jump to behavior

Source: C:\Windows\System32\rundll32.exe	Automated click: OK
Source: C:\Windows\System32\rundll32.exe	Automated click: OK
Source: C:\Windows\System32\rundll32.exe	Automated click: OK
Source: C:\Windows\System32\rundll32.exe	Automated click: OK
Source: C:\Windows\System32\rundll32.exe	Automated click: OK

Source: Window Recorder

Window detected: More than 3 window changes detected

Source: Blake3.dll.dll

Static PE information: Image base 0x180000000 > 0x60000000

Source: Blake3.dll.dll

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT

Source: Blake3.dll.dll

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source: Blake3.dll.dll

Static PE information: section name: _RDATA

Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Windows\System32\conhost.exe

Last function: Thread delayed

Source: C:\Windows\System32\loaddll64.exe

Process queried: DebugPort

Jump to behavior

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Windows\System32\cmd.exe

Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Blake3.dll.dll",#1

Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	1 DLL Side-Loading	11 Process Injection	1 Virtualization/Sandbox Evasion	OS Credential Dumping	1 Security Software Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 DLL Side-Loading	1 Rundll32	LSASS Memory	1 Virtualization/Sandbox Evasion	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	11 Process Injection	Security Account Manager	1 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	1 DLL Side-Loading	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
Blake3.dll.dll	17%	ReversingLabs	Win64.Hacktool.Generic

Domains and IPs

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1523621
Start date and time:	2024-10-01 21:09:07 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 1m 56s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	9
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	Blake3.dll.dll (renamed file extension from exe to dll)
Original Sample Name:	Blake3.dll.exe
Detection:	SUS
Classification:	sus22.winDLL@12/0@0/0
EGA Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Stop behavior analysis, all processes terminated

Warnings

Exclude process from analysis (whitelisted): dllhost.exe, SIHClient.exe
Excluded domains from analysis (whitelisted): slscr.update.microsoft.com, ctldl.windowsupdate.com
Not all processes where analyzed, report is missing behavior information
VT rate limit hit for: Blake3.dll.dll

Joe Sandbox View / Context

Instruction
dec eax
mov dword ptr [esp+08h], ebx
dec eax
mov dword ptr [esp+10h], esi
push edi
dec eax
sub esp, 20h
dec ecx
mov edi, eax
mov ebx, edx
dec eax
mov esi, ecx
cmp edx, 01h
jne 00007FCB58B480D7h
call 00007FCB58B4840Ch
dec esp
mov eax, edi
mov edx, ebx
dec eax
mov ecx, esi
dec eax
mov ebx, dword ptr [esp+30h]
dec eax
mov esi, dword ptr [esp+38h]
dec eax
add esp, 20h
pop edi
jmp 00007FCB58B47F64h
int3
int3
int3
dec eax
sub esp, 28h
dec ebp
mov eax, dword ptr [ecx+38h]
dec eax
mov ecx, edx
dec ecx
mov edx, ecx
call 00007FCB58B480E2h
mov eax, 00000001h
dec eax
add esp, 28h
ret
int3
int3
int3
inc eax
push ebx
inc ebp
mov ebx, dword ptr [eax]
dec eax
mov ebx, edx
inc ecx
and ebx, FFFFFFF8h
dec esp
mov ecx, ecx
inc ecx
test byte ptr [eax], 00000004h
dec esp
mov edx, ecx
je 00007FCB58B480E5h
inc ecx
mov eax, dword ptr [eax+08h]
dec ebp
arpl word ptr [eax+04h], dx
neg eax
dec esp
add edx, ecx
dec eax
arpl ax, cx
dec esp
and edx, ecx
dec ecx
arpl bx, ax
dec edx
mov edx, dword ptr [eax+edx]
dec eax
mov eax, dword ptr [ebx+10h]
mov ecx, dword ptr [eax+08h]
dec eax
mov eax, dword ptr [ebx+08h]
test byte ptr [ecx+eax+03h], 0000000Fh
je 00007FCB58B480DDh
movzx eax, byte ptr [ecx+eax+03h]
and eax, FFFFFFF0h
dec esp
add ecx, eax
dec esp
xor ecx, edx
dec ecx
mov ecx, ecx
pop ebx
jmp 00007FCB58B47CDAh
int3
inc eax
push ebx
dec eax
sub esp, 20h
dec eax
mov ebx, ecx
xor ecx, ecx

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x25e00	0xa4	.rdata
IMAGE_DIRECTORY_ENTRY_IMPORT	0x2b80a	0x28	.reloc
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x0	0x0
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x29000	0xe34	.pdata
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x2b000	0x63c	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x24d60	0x38	.rdata
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x24c20	0x140	.rdata
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x1d000	0x218	.rdata
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Name	Virtual Address	Virtual Size	Raw Size	MD5	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x1bc50	0x1be00	65b3667622aa01f81826938510c7ab8c	False	0.3909840947309417	COM executable for DOS	6.659334732816343	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rdata	0x1d000	0x95d0	0x9600	76aea7adb98f4c77a2b7b89d1effc6fd	False	0.4176302083333333	data	4.768812591932512	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0x27000	0x1bb0	0xa00	c6a949355dcebaea5f8bf64c42dd650a	False	0.14453125	data	1.963314982748202	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.pdata	0x29000	0xe34	0x1000	006c2dc5c855966a1c37808d3e3f07e6	False	0.4345703125	PEX Binary Archive	4.880074698566475	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
_RDATA	0x2a000	0x15c	0x200	a215266c76b8ad02d0da558cb19d8bd8	False	0.408203125	data	3.356758305314084	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x2b000	0x87c	0x87c	4767bd1dae5f98891d657665bd6985d6	False	0.47790055248618785	data	4.7765709747047325	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE

DLL	Import
KERNEL32.dll	RtlCaptureContext, RtlLookupFunctionEntry, RtlVirtualUnwind, UnhandledExceptionFilter, SetUnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, IsProcessorFeaturePresent, QueryPerformanceCounter, GetCurrentProcessId, GetCurrentThreadId, GetSystemTimeAsFileTime, InitializeSListHead, IsDebuggerPresent, GetStartupInfoW, GetModuleHandleW, RtlUnwindEx, InterlockedFlushSList, GetLastError, SetLastError, EnterCriticalSection, LeaveCriticalSection, DeleteCriticalSection, InitializeCriticalSectionAndSpinCount, TlsAlloc, TlsGetValue, TlsSetValue, TlsFree, FreeLibrary, GetProcAddress, LoadLibraryExW, RaiseException, ExitProcess, GetModuleHandleExW, GetModuleFileNameW, HeapAlloc, HeapFree, FindClose, FindFirstFileExW, FindNextFileW, IsValidCodePage, GetACP, GetOEMCP, GetCPInfo, GetCommandLineA, GetCommandLineW, MultiByteToWideChar, WideCharToMultiByte, GetEnvironmentStringsW, FreeEnvironmentStringsW, LCMapStringW, GetProcessHeap, GetStdHandle, GetFileType, GetStringTypeW, HeapSize, HeapReAlloc, SetStdHandle, FlushFileBuffers, WriteFile, GetConsoleOutputCP, GetConsoleMode, SetFilePointerEx, CreateFileW, CloseHandle, WriteConsoleW
BTCR.dll	BTCR

RtlCaptureContext, RtlLookupFunctionEntry, RtlVirtualUnwind, UnhandledExceptionFilter, SetUnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, IsProcessorFeaturePresent, QueryPerformanceCounter, GetCurrentProcessId, GetCurrentThreadId, GetSystemTimeAsFileTime, InitializeSListHead, IsDebuggerPresent, GetStartupInfoW, GetModuleHandleW, RtlUnwindEx, InterlockedFlushSList, GetLastError, SetLastError, EnterCriticalSection, LeaveCriticalSection, DeleteCriticalSection, InitializeCriticalSectionAndSpinCount, TlsAlloc, TlsGetValue, TlsSetValue, TlsFree, FreeLibrary, GetProcAddress, LoadLibraryExW, RaiseException, ExitProcess, GetModuleHandleExW, GetModuleFileNameW, HeapAlloc, HeapFree, FindClose, FindFirstFileExW, FindNextFileW, IsValidCodePage, GetACP, GetOEMCP, GetCPInfo, GetCommandLineA, GetCommandLineW, MultiByteToWideChar, WideCharToMultiByte, GetEnvironmentStringsW, FreeEnvironmentStringsW, LCMapStringW, GetProcessHeap, GetStdHandle, GetFileType, GetStringTypeW, HeapSize, HeapReAlloc, SetStdHandle, FlushFileBuffers, WriteFile, GetConsoleOutputCP, GetConsoleMode, SetFilePointerEx, CreateFileW, CloseHandle, WriteConsoleW

BTCR.dll

BTCR

Exports

Name	Ordinal	Address
Blake3Finalize	1	0x180001070
Blake3Free	2	0x180001090
Blake3Init	3	0x180001010
Blake3Reset	4	0x180001060
Blake3Update	5	0x180001040

Target ID:	0
Start time:	15:09:53
Start date:	01/10/2024
Path:	C:\Windows\System32\loaddll64.exe
Wow64 process (32bit):	false
Commandline:	loaddll64.exe "C:\Users\user\Desktop\Blake3.dll.dll"
Imagebase:	0x7ff7fa150000
File size:	165'888 bytes
MD5 hash:	763455F9DCB24DFEECC2B9D9F8D46D52
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	1
Start time:	15:09:53
Start date:	01/10/2024
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff6d64d0000
File size:	862'208 bytes
MD5 hash:	0D698AF330FD17BEE3BF90011D49251D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	2
Start time:	15:09:53
Start date:	01/10/2024
Path:	C:\Windows\System32\cmd.exe
Wow64 process (32bit):	false
Commandline:	cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Blake3.dll.dll",#1
Imagebase:	0x7ff781a30000
File size:	289'792 bytes
MD5 hash:	8A2122E8162DBEF04694B9C3E0B6CDEE
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	3
Start time:	15:09:53
Start date:	01/10/2024
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Finalize
Imagebase:	0x7ff74f750000
File size:	71'680 bytes
MD5 hash:	EF3179D498793BF4234F708D3BE28633
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	4
Start time:	15:09:53
Start date:	01/10/2024
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe "C:\Users\user\Desktop\Blake3.dll.dll",#1
Imagebase:	0x7ff74f750000
File size:	71'680 bytes
MD5 hash:	EF3179D498793BF4234F708D3BE28633
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	6
Start time:	15:09:56
Start date:	01/10/2024
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Free
Imagebase:	0x7ff74f750000
File size:	71'680 bytes
MD5 hash:	EF3179D498793BF4234F708D3BE28633
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	7
Start time:	15:09:59
Start date:	01/10/2024
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe C:\Users\user\Desktop\Blake3.dll.dll,Blake3Init
Imagebase:	0x7ff74f750000
File size:	71'680 bytes
MD5 hash:	EF3179D498793BF4234F708D3BE28633
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Chronological Activities

Disassembly

⊘No disassembly

File type:	PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Entropy (8bit):	6.405417612041021
TrID:	Win64 Dynamic Link Library (generic) (102004/3) 86.43% Win64 Executable (generic) (12005/4) 10.17% Generic Win/DOS Executable (2004/3) 1.70% DOS Executable Generic (2002/1) 1.70% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.01%
File name:	Blake3.dll.dll
File size:	162'940 bytes
MD5:	d463cdfb8a433d9f916cf3bc6fd82109
SHA1:	1ee9185142ff8329eb0ac10535e9b2fb963651fe
SHA256:	230bd8803629aabe80bf4b4a109787b330ca1c8200b6a04ccd91d5f480c5446e
SHA512:	cfdf683811b7a288ba659b3424128c26c338f66e1e13f520bbf047b6b2c8ac82e852e2b99be1838e1103e5e07a480ab0a962147f8c965643df9948a2f8d1c2a1
SSDEEP:	1536:gmahBzTzZWMhFAF3Wx7cT3lLNa1iM+3SuxwnXL7pFVlYpDJgYUsW8id09dla1Z/T:q3977C3l5awh3rwb7nVl8CVMA1Avc
TLSH:	4EF34A1CB0A684E9CC236279C5774725EF34766C1354DAEE038A43D6AF673E01E39EA1
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.........So.\|=<.\|=<.\|=<..9=.\|=<..>=.\|=<..8= \|=<..8=.\|=<..9=.\|=<..>=.\|=<..>=.\|=<..9=.\|=<..<=.\|=<.\|<<.\|=<..4=.\|=<..==.\|=<..?=.\|=<Rich.\|=

Entrypoint:	0x180011e00
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x180000000
Subsystem:	windows gui
Image File Characteristics:	EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE, DLL
DLL Characteristics:	HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
Time Stamp:	0x649A7366 [Tue Jun 27 05:28:06 2023 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	6
OS Version Minor:	0
File Version Major:	6
File Version Minor:	0
Subsystem Version Major:	6
Subsystem Version Minor:	0
Import Hash:	421a4958b4be36acc6cd9236ea8ba255

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	File: File Metadata, File: File Modification, Module: Module Load, Process: OS API Execution, Process: Process Access, Process: Process Metadata, Process: Process Modification
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse rundll32.exe to proxy execution of malicious code. Using rundll32.exe, vice executing directly (i.e. Shared Modules ), may avoid triggering security tools that may not monitor execution of the rundll32.exe process because of allowlists or false positives from normal operations. Rundll32.exe is commonly associated with executing DLL payloads (ex: `rundll32.exe {DLLname, DLLfunction}` ).
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Metadata, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre


Icon Hash:	7ae282899bbab082

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Windows Analysis Report Blake3.dll.dll

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Compliance

System Summary

Data Obfuscation

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

HIPS / PFW / Operating System Protection Evasion

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Data Directories

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Imports

Exports

Network Behavior

Statistics

CPU Usage

Memory Usage

Behavior

System Behavior

Analysis Process: loaddll64.exePID: 7268, Parent PID: 1028

General

Chronological Activities

Analysis Process: conhost.exePID: 7276, Parent PID: 7268

General

Chronological Activities

Analysis Process: cmd.exePID: 7320, Parent PID: 7268

General

Chronological Activities

Analysis Process: rundll32.exePID: 7328, Parent PID: 7268

General

Chronological Activities

Analysis Process: rundll32.exePID: 7344, Parent PID: 7320

Windows Analysis Report
Blake3.dll.dll