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Windows Analysis Report
file.dll

Overview

General Information

Sample name:	file.dll (renamed file extension from exe to dll)
Original sample name:	file.exe
Analysis ID:	1524400
MD5:	3d9f992c8f1aa9f789c806e1510a2ccf
SHA1:	960cc1ac85b1ec28101d4225497775d5f6603a7f
SHA256:	55a8f234a1181e93001290fea68c382421287a7e6b31ff8e33b74213d83e5060
Tags:	dllexesignedx64user-jstrosch
Infos:

Detection

Score:	2
Range:	0 - 100
Whitelisted:	false
Confidence:	80%

Signatures

Checks if the current process is being debugged

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

Program does not show much activity (idle)

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

Sample file is different than original file name gathered from version info

Classification

Process Tree

System is w10x64

loaddll64.exe (PID: 6524 cmdline: loaddll64.exe "C:\Users\user\Desktop\file.dll" MD5: 763455F9DCB24DFEECC2B9D9F8D46D52)

conhost.exe (PID: 5416 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cmd.exe (PID: 6920 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\file.dll",#1 MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE)

rundll32.exe (PID: 2460 cmdline: rundll32.exe "C:\Users\user\Desktop\file.dll",#1 MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 6452 cmdline: rundll32.exe C:\Users\user\Desktop\file.dll,JNI_OnLoad MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 6328 cmdline: rundll32.exe C:\Users\user\Desktop\file.dll,Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_abortRead MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 7368 cmdline: rundll32.exe C:\Users\user\Desktop\file.dll,Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_disposeReader MD5: EF3179D498793BF4234F708D3BE28633)

cleanup

Malware Configuration

⊘No configs have been found

Yara Signatures

⊘No yara matches

Sigma Signatures

⊘No Sigma rule has matched

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

There are no malicious signatures, click here to show all signatures.

Source: file.dll

Static PE information: certificate valid

Source: file.dll

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT

Source:	Binary string: c:\jenkins\workspace\8-2-build-windows-x64-cygwin\jdk8u361\3183\build\windows-x64\jdk\objs\libjpeg\jpeg.pdb source: file.dll
Source:	Binary string: c:\jenkins\workspace\8-2-build-windows-x64-cygwin\jdk8u361\3183\build\windows-x64\jdk\objs\libjpeg\jpeg.pdbEE source: file.dll

Source: file.dll	String found in binary or memory: http://cacerts.digicert.com/DigiCertAssuredIDRootCA.crt0E
Source: file.dll	String found in binary or memory: http://cacerts.digicert.com/DigiCertTrustedG4CodeSigningRSA4096SHA3842021CA1.crt0
Source: file.dll	String found in binary or memory: http://cacerts.digicert.com/DigiCertTrustedG4RSA4096SHA256TimeStampingCA.crt0
Source: file.dll	String found in binary or memory: http://cacerts.digicert.com/DigiCertTrustedRootG4.crt0C
Source: file.dll	String found in binary or memory: http://crl3.digicert.com/DigiCertAssuredIDRootCA.crl0
Source: file.dll	String found in binary or memory: http://crl3.digicert.com/DigiCertTrustedG4CodeSigningRSA4096SHA3842021CA1.crl0S
Source: file.dll	String found in binary or memory: http://crl3.digicert.com/DigiCertTrustedG4RSA4096SHA256TimeStampingCA.crl0
Source: file.dll	String found in binary or memory: http://crl3.digicert.com/DigiCertTrustedRootG4.crl0
Source: file.dll	String found in binary or memory: http://crl4.digicert.com/DigiCertTrustedG4CodeSigningRSA4096SHA3842021CA1.crl0
Source: file.dll	String found in binary or memory: http://ocsp.digicert.com0
Source: file.dll	String found in binary or memory: http://ocsp.digicert.com0A
Source: file.dll	String found in binary or memory: http://ocsp.digicert.com0C
Source: file.dll	String found in binary or memory: http://ocsp.digicert.com0X
Source: file.dll	String found in binary or memory: http://www.digicert.com/CPS0

Source: file.dll

Binary or memory string: OriginalFilenamejpeg.dllN vs file.dll

Source: classification engine

Classification label: clean2.winDLL@12/0@0/0

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

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:5416:120:WilError_03

Source: file.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\file.dll,JNI_OnLoad

Source: unknown	Process created: C:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\file.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\file.dll",#1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,JNI_OnLoad
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\file.dll",#1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_abortRead
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_disposeReader
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\file.dll",#1	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,JNI_OnLoad	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_abortRead	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_disposeReader	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\file.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: java.dll	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Section loaded: vcruntime140.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: file.dll

Static PE information: certificate valid

Source: file.dll

Static PE information: Image base 0x180000000 > 0x60000000

Source: file.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IMPORT
Source: file.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_RESOURCE
Source: file.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_BASERELOC
Source: file.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: file.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG
Source: file.dll	Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IAT

Source: file.dll

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT

Source: file.dll

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:	Binary string: c:\jenkins\workspace\8-2-build-windows-x64-cygwin\jdk8u361\3183\build\windows-x64\jdk\objs\libjpeg\jpeg.pdb source: file.dll
Source:	Binary string: c:\jenkins\workspace\8-2-build-windows-x64-cygwin\jdk8u361\3183\build\windows-x64\jdk\objs\libjpeg\jpeg.pdbEE source: file.dll

Source: file.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IMPORT is in: .rdata
Source: file.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_RESOURCE is in: .rsrc
Source: file.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_BASERELOC is in: .reloc
Source: file.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG is in: .rdata
Source: file.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IAT is in: .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\file.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
file.dll	0%	ReversingLabs

Dropped Files

⊘No Antivirus matches

Unpacked PE Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1524400
Start date and time:	2024-10-02 18:47:37 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 3m 52s
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:	20
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:	file.dll (renamed file extension from exe to dll)
Original Sample Name:	file.exe
Detection:	CLEAN
Classification:	clean2.winDLL@12/0@0/0
EGA Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, dllhost.exe, WMIADAP.exe, SIHClient.exe, SgrmBroker.exe, conhost.exe, svchost.exe
Excluded domains from analysis (whitelisted): slscr.update.microsoft.com, ctldl.windowsupdate.com, time.windows.com, fe3cr.delivery.mp.microsoft.com
Not all processes where analyzed, report is missing behavior information
VT rate limit hit for: file.dll

Simulations

Behavior and APIs

⊘No simulations

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Entropy (8bit):	6.498819915028123
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:	file.dll
File size:	200'864 bytes
MD5:	3d9f992c8f1aa9f789c806e1510a2ccf
SHA1:	960cc1ac85b1ec28101d4225497775d5f6603a7f
SHA256:	55a8f234a1181e93001290fea68c382421287a7e6b31ff8e33b74213d83e5060
SHA512:	db62832d52c4ce1179a96c6bbceacd87dcd716fc775de169940335a3378e3a683157d04f431cb394f761a91154a00be4fcc888e2d90aabf9fd850a7182f847fe
SSDEEP:	6144:hy0tQkTF0j3YCcqbmnazMGg41pamlQPGWb:rzTKjIuLgMKb
TLSH:	6E146B5273B01098E5ABC0BC966ADA17EAB270150714A7EB47A4C3B72F13EE13D3B754
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$..........6D..eD..eD..eM.=eL..e...dF..e...dF..e.=ieE..e...dH..e...dL..e...dF..e...dG..eD..ev..e...du..e...dE..e..QeE..e...dE..eRichD..

File Icon


Icon Hash:	7ae282899bbab082

Static PE Info

General

Entrypoint:	0x18002553c
Entrypoint Section:	.text
Digitally signed:	true
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:	0x63BBD4C4 [Mon Jan 9 08:48:04 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:	9aefa8396980f6588f945972d6f0f774

Authenticode Signature

Signature Valid:	true
Signature Issuer:	CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1, O="DigiCert, Inc.", C=US
Signature Validation Error:	The operation completed successfully
Error Number:	0
Not Before, Not After	19/08/2021 02:00:00 20/08/2023 01:59:59
Subject Chain	CN="Oracle America, Inc.", OU=Software Engineering, O="Oracle America, Inc.", L=Redwood City, S=California, C=US
Version:	3
Thumbprint MD5:	2876C1BECB51837D0E3DE50903D025B6
Thumbprint SHA-1:	940D69C0A34A1B4CFD8048488BA86F4CED60481A
Thumbprint SHA-256:	EE46613A38B4F486164BCE7FB23178667715617F511B364594311A1548B08EB1
Serial:	068BE2F53452C882F18ED41A5DD4E7A3

Entrypoint Preview

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 00007F4454874D27h
call 00007F4454874D44h
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 00007F4454874BB4h
int3
int3
int3
dec eax
mov dword ptr [esp+20h], ebx
push ebp
dec eax
mov ebp, esp
dec eax
sub esp, 20h
dec eax
mov eax, dword ptr [00007B78h]
dec eax
mov ebx, 2DDFA232h
cdq
sub eax, dword ptr [eax]
add byte ptr [eax+3Bh], cl
ret
jne 00007F4454874D96h
dec eax
and dword ptr [ebp+18h], 00000000h
dec eax
lea ecx, dword ptr [ebp+18h]
call dword ptr [00000A6Ah]
dec eax
mov eax, dword ptr [ebp+18h]
dec eax
mov dword ptr [ebp+10h], eax
call dword ptr [00000A64h]
mov eax, eax
dec eax
xor dword ptr [ebp+10h], eax
call dword ptr [00000A60h]
mov eax, eax
dec eax
lea ecx, dword ptr [ebp+20h]
dec eax
xor dword ptr [ebp+10h], eax
call dword ptr [00000A58h]
mov eax, dword ptr [ebp+20h]
dec eax
lea ecx, dword ptr [ebp+10h]
dec eax
shl eax, 20h
dec eax
xor eax, dword ptr [ebp+20h]
dec eax
xor eax, dword ptr [ebp+10h]
dec eax
xor eax, ecx
dec eax
mov ecx, FFFFFFFFh

Rich Headers

Programming Language:

[IMP] VS2008 SP1 build 30729

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x2bf90	0x6f8	.rdata
IMAGE_DIRECTORY_ENTRY_IMPORT	0x2c688	0xa0	.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x30000	0x398	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x2e000	0x1e60	.pdata
IMAGE_DIRECTORY_ENTRY_SECURITY	0x2e800	0x28a0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x31000	0x120	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x292c0	0x54	.rdata
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x29320	0x100	.rdata
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x26000	0x198	.rdata
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	MD5	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x24cf3	0x24e00	90b26a84b53ef2158f198e7e296cd65a	False	0.516359904661017	zlib compressed data	6.320029236131401	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rdata	0x26000	0x6cfc	0x6e00	fb0465ed495d8340a5f19f4c3f0779fd	False	0.42464488636363634	COM executable for DOS	5.751839443457755	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0x2d000	0x870	0x200	44db2aeca9727bf7b54199d3bcb62d10	False	0.310546875	data	1.7037933149541986	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.pdata	0x2e000	0x1e60	0x2000	1755e6c0c1f10bc9f66fdcfc08aeae8c	False	0.454345703125	data	5.192282278377005	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.rsrc	0x30000	0x398	0x400	236b26fce7d1bad0bf4e5fa50a452c68	False	0.4033203125	data	3.0298096834492867	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x31000	0x120	0x200	f8b25fc19d1f595b7898fbb9facbf9da	False	0.44140625	data	3.402778242007507	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country	ZLIB Complexity
RT_VERSION	0x30060	0x334	data			0.46463414634146344

Imports

DLL	Import
java.dll	JNU_ThrowNullPointerException, JNU_CallStaticMethodByName, jio_snprintf, JNU_GetEnv, JNU_CallMethodByName, JNU_NewObjectByName, JNU_ThrowByName
KERNEL32.dll	IsDebuggerPresent, InitializeSListHead, DisableThreadLibraryCalls, GetSystemTimeAsFileTime, GetCurrentThreadId, GetCurrentProcessId, QueryPerformanceCounter, RtlCaptureContext, RtlLookupFunctionEntry, RtlVirtualUnwind, UnhandledExceptionFilter, SetUnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, IsProcessorFeaturePresent
VCRUNTIME140.dll	memmove, longjmp, __C_specific_handler, memset, __std_type_info_destroy_list, __intrinsic_setjmp, memcpy
api-ms-win-crt-heap-l1-1-0.dll	calloc, malloc, free
api-ms-win-crt-stdio-l1-1-0.dll	__stdio_common_vfprintf, __acrt_iob_func, __stdio_common_vsscanf
api-ms-win-crt-environment-l1-1-0.dll	getenv
api-ms-win-crt-runtime-l1-1-0.dll	_execute_onexit_table, _cexit, _initialize_onexit_table, _seh_filter_dll, _initialize_narrow_environment, _initterm, _initterm_e, _configure_narrow_argv

Exports

Name	Ordinal	Address
JNI_OnLoad	1	0x18001d560
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_abortRead	2	0x1800010a0
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_disposeReader	3	0x1800010c0
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_initJPEGImageReader	4	0x180001120
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_initReaderIDs	5	0x180001330
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_readImage	6	0x180001590
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_readImageHeader	7	0x180001e40
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_resetLibraryState	8	0x180002170
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_resetReader	9	0x180002190
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_setOutColorSpace	10	0x180002240
Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_setSource	11	0x180002260
Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_abortWrite	12	0x1800022b0
Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_disposeWriter	13	0x1800010c0
Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_initJPEGImageWriter	14	0x1800022d0
Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_initWriterIDs	15	0x1800024a0
Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_resetWriter	16	0x180002630
Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_setDest	17	0x180002680
Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_writeImage	18	0x1800026d0
Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_writeTables	19	0x180003210
Java_sun_awt_image_JPEGImageDecoder_initIDs	20	0x18001d570
Java_sun_awt_image_JPEGImageDecoder_readImage	21	0x18001d660
Java_sun_awt_image_codec_JPEGImageDecoderImpl_initDecoder	22	0x18001e2a0
Java_sun_awt_image_codec_JPEGImageDecoderImpl_readJPEGStream	23	0x18001e4c0
Java_sun_awt_image_codec_JPEGImageEncoderImpl_initEncoder	24	0x18001f720
Java_sun_awt_image_codec_JPEGImageEncoderImpl_writeJPEGStream	25	0x18001f7d0

Network Behavior

⊘No network behavior found

Statistics

CPU Usage

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Memory Usage

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Behavior

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System Behavior

Analysis Process: loaddll64.exePID: 6524, Parent PID: 4056

General

Target ID:	0
Start time:	12:48:30
Start date:	02/10/2024
Path:	C:\Windows\System32\loaddll64.exe
Wow64 process (32bit):	false
Commandline:	loaddll64.exe "C:\Users\user\Desktop\file.dll"
Imagebase:	0x7ff72d6b0000
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

Chronological Activities

Analysis Process: conhost.exePID: 5416, Parent PID: 6524

General

Target ID:	1
Start time:	12:48:30
Start date:	02/10/2024
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff75da10000
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

Chronological Activities

Analysis Process: cmd.exePID: 6920, Parent PID: 6524

General

Target ID:	2
Start time:	12:48:30
Start date:	02/10/2024
Path:	C:\Windows\System32\cmd.exe
Wow64 process (32bit):	false
Commandline:	cmd.exe /C rundll32.exe "C:\Users\user\Desktop\file.dll",#1
Imagebase:	0x7ff668890000
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

Chronological Activities

Analysis Process: rundll32.exePID: 6452, Parent PID: 6524

General

Target ID:	3
Start time:	12:48:30
Start date:	02/10/2024
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe C:\Users\user\Desktop\file.dll,JNI_OnLoad
Imagebase:	0x7ff7d8240000
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

Analysis Process: rundll32.exePID: 2460, Parent PID: 6920

General

Target ID:	4
Start time:	12:48:30
Start date:	02/10/2024
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe "C:\Users\user\Desktop\file.dll",#1
Imagebase:	0x7ff7d8240000
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

Analysis Process: rundll32.exePID: 6328, Parent PID: 6524

General

Target ID:	9
Start time:	12:48:33
Start date:	02/10/2024
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe C:\Users\user\Desktop\file.dll,Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_abortRead
Imagebase:	0x7ff7d8240000
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

Analysis Process: rundll32.exePID: 7368, Parent PID: 6524

General

Target ID:	13
Start time:	12:48:36
Start date:	02/10/2024
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe C:\Users\user\Desktop\file.dll,Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_disposeReader
Imagebase:	0x7ff7d8240000
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

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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report file.dll

Overview

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System Behavior

Analysis Process: loaddll64.exePID: 6524, Parent PID: 4056

General

Chronological Activities

Analysis Process: conhost.exePID: 5416, Parent PID: 6524

General

Chronological Activities

Analysis Process: cmd.exePID: 6920, Parent PID: 6524

General

Chronological Activities

Analysis Process: rundll32.exePID: 6452, Parent PID: 6524

General

Windows Analysis Report
file.dll