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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:	1524233
MD5:	03c9351e4fabe66d22bf80454e010069
SHA1:	74552026cb09976c3b214623496001141b0a7146
SHA256:	cb85217d6232dbd4a1a5667b195254438b68a99edca1fc531ea7f5544a722b3d
Tags:	dllexesignedx64user-jstrosch
Infos:

Detection

Score:	2
Range:	0 - 100
Whitelisted:	false
Confidence:	60%

Signatures

Checks if the current process is being debugged

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

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

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

Tries to resolve domain names, but no domain seems valid (expired dropper behavior)

Classification

Process Tree

System is w10x64

loaddll64.exe (PID: 1096 cmdline: loaddll64.exe "C:\Users\user\Desktop\file.dll" MD5: 763455F9DCB24DFEECC2B9D9F8D46D52)

conhost.exe (PID: 3556 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cmd.exe (PID: 3376 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\file.dll",#1 MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE)

rundll32.exe (PID: 1820 cmdline: rundll32.exe "C:\Users\user\Desktop\file.dll",#1 MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 1592 cmdline: rundll32.exe C:\Users\user\Desktop\file.dll,JNI_OnLoad MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 1524 cmdline: rundll32.exe C:\Users\user\Desktop\file.dll,Java_jdk_management_resource_internal_ResourceNatives_computeRetainedMemory0 MD5: EF3179D498793BF4234F708D3BE28633)

rundll32.exe (PID: 2228 cmdline: rundll32.exe C:\Users\user\Desktop\file.dll,Java_jdk_management_resource_internal_ResourceNatives_createResourceContext0 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\libresource\resource.pdb source: file.dll

Source: unknown

DNS traffic detected: query: 18.31.95.13.in-addr.arpa replaycode: Name error (3)

Source: unknown

UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

DNS traffic detected: DNS query: 18.31.95.13.in-addr.arpa

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: OriginalFilenameresource.dllN vs file.dll

Source: classification engine

Classification label: clean2.winDLL@12/0@1/0

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

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:3556:120: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_jdk_management_resource_internal_ResourceNatives_computeRetainedMemory0
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,Java_jdk_management_resource_internal_ResourceNatives_createResourceContext0
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_jdk_management_resource_internal_ResourceNatives_computeRetainedMemory0	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_jdk_management_resource_internal_ResourceNatives_createResourceContext0	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: jvm.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: 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\libresource\resource.pdb 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: C:\Windows\System32\conhost.exe

Last function: Thread delayed

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

Process queried: DebugPort

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

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	1 Non-Application Layer Protocol	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	1 Application Layer Protocol	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

Name	IP	Active	Malicious	Antivirus Detection	Reputation
18.31.95.13.in-addr.arpa	unknown	unknown	false		unknown

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1524233
Start date and time:	2024-10-02 17:15:10 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 2m 43s
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:	file.dll (renamed file extension from exe to dll)
Original Sample Name:	file.exe
Detection:	CLEAN
Classification:	clean2.winDLL@12/0@1/0
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, 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):	6.583480471704661
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:	21'664 bytes
MD5:	03c9351e4fabe66d22bf80454e010069
SHA1:	74552026cb09976c3b214623496001141b0a7146
SHA256:	cb85217d6232dbd4a1a5667b195254438b68a99edca1fc531ea7f5544a722b3d
SHA512:	801a7f1cb16f1d03455eccd20605f4b3175688080fdc8fdc7fee2d15c9b8a209c59264ce05cfbbbbb974680383830b90815f6fa74b362875741cecb19f1c4877
SSDEEP:	384:K37U76Lz+X0eAgx+IYieTFhO0rmPxh8E9VF0NyQpNO:wY76LzWxTYiUFSPxWEeDO
TLSH:	C6A27C63AB688C71E56B457070E5473AE631B681D9F0C3DB2328C2185FE734277687AE
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........x.....T...T...T.aST...T.q.U...T.q.U...T.q.U...T.q.U...T.q.U...Thp.U...T...T...Thp.U...Thp.U...Thp?T...Thp.U...TRich...T.......

File Icon


Icon Hash:	7ae282899bbab082

Static PE Info

General

Entrypoint:	0x180001494
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:	f279f07bdc54ce37775768e2e33cc25c

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 01:00:00 20/08/2023 00:59:59
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 00007F2D1091BBB7h
call 00007F2D1091BBD4h
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 00007F2D1091BA44h
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 [00001B28h]
dec eax
mov ebx, 2DDFA232h
cdq
sub eax, dword ptr [eax]
add byte ptr [eax+3Bh], cl
ret
jne 00007F2D1091BC26h
dec eax
and dword ptr [ebp+18h], 00000000h
dec eax
lea ecx, dword ptr [ebp+18h]
call dword ptr [00000B22h]
dec eax
mov eax, dword ptr [ebp+18h]
dec eax
mov dword ptr [ebp+10h], eax
call dword ptr [00000B0Ch]
mov eax, eax
dec eax
xor dword ptr [ebp+10h], eax
call dword ptr [00000AF8h]
mov eax, eax
dec eax
lea ecx, dword ptr [ebp+20h]
dec eax
xor dword ptr [ebp+10h], eax
call dword ptr [00000AE0h]
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	0x2740	0x470	.rdata
IMAGE_DIRECTORY_ENTRY_IMPORT	0x2bb0	0x78	.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x5000	0x3a8	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x4000	0x180	.pdata
IMAGE_DIRECTORY_ENTRY_SECURITY	0x2c00	0x28a0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x6000	0x14	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x2190	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	0x21f0	0x100	.rdata
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x2000	0xf8	.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	0xdb3	0xe00	e85b91159c86a14a4a9f3b541267e3c2	False	0.6417410714285714	data	6.0424158857658234	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rdata	0x2000	0xfcc	0x1000	ba5d9366be4c8d85f3367c10f43673dd	False	0.38134765625	data	4.6482792014586005	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0x3000	0xc8	0x200	f80f80858fe0cc19877afbeb1cfa6697	False	0.09375	DOS executable (block device driver \322f\324\377\3772)	0.4295224506328726	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.pdata	0x4000	0x180	0x200	f86246b720d8f2464e5f0d170466667f	False	0.439453125	data	2.9726848454778283	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.rsrc	0x5000	0x3a8	0x400	a18e3c24e92b0b5ec68cc41d52813b9b	False	0.41015625	data	3.0687025588586345	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x6000	0x14	0x200	10e129f688dafb72e26ac1e86eb7dc14	False	0.060546875	data	0.21473251778718186	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country	ZLIB Complexity
RT_VERSION	0x5060	0x344	data			0.46172248803827753

Imports

DLL	Import
jvm.dll	JVM_GetManagementExt
java.dll	JNU_ThrowInternalError
KERNEL32.dll	IsProcessorFeaturePresent, SetUnhandledExceptionFilter, QueryPerformanceCounter, GetCurrentProcessId, GetCurrentThreadId, GetSystemTimeAsFileTime, DisableThreadLibraryCalls, InitializeSListHead, RtlCaptureContext, RtlLookupFunctionEntry, RtlVirtualUnwind, IsDebuggerPresent, UnhandledExceptionFilter
VCRUNTIME140.dll	__std_type_info_destroy_list, __C_specific_handler, memset
api-ms-win-crt-runtime-l1-1-0.dll	_cexit, _execute_onexit_table, _initterm, _initterm_e, _seh_filter_dll, _configure_narrow_argv, _initialize_narrow_environment, _initialize_onexit_table

Exports

Name	Ordinal	Address
JNI_OnLoad	1	0x180001000
Java_jdk_management_resource_internal_ResourceNatives_computeRetainedMemory0	2	0x180001054
Java_jdk_management_resource_internal_ResourceNatives_createResourceContext0	3	0x180001068
Java_jdk_management_resource_internal_ResourceNatives_destroyResourceContext0	4	0x180001078
Java_jdk_management_resource_internal_ResourceNatives_featuresEnabled0	5	0x18000108c
Java_jdk_management_resource_internal_ResourceNatives_getContextsRetainedMemory0	6	0x180001098
Java_jdk_management_resource_internal_ResourceNatives_getCurrentThreadAllocatedHeap0	7	0x1800010b4
Java_jdk_management_resource_internal_ResourceNatives_getCurrentThreadCPUTime0	8	0x1800010c0
Java_jdk_management_resource_internal_ResourceNatives_getThreadResourceContext0	9	0x1800010d0
Java_jdk_management_resource_internal_ResourceNatives_getThreadStats0	10	0x1800010e0
Java_jdk_management_resource_internal_ResourceNatives_sampleInterval0	11	0x180001128
Java_jdk_management_resource_internal_ResourceNatives_setRetainedMemoryNotificationEnabled0	12	0x180001134
Java_jdk_management_resource_internal_ResourceNatives_setThreadResourceContext0	13	0x180001144

Network Behavior

Network Port Distribution

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 2, 2024 17:16:44.371423960 CEST	53	63948	162.159.36.2	192.168.2.9
Oct 2, 2024 17:16:44.853156090 CEST	63115	53	192.168.2.9	1.1.1.1
Oct 2, 2024 17:16:44.860466957 CEST	53	63115	1.1.1.1	192.168.2.9
Oct 2, 2024 17:16:47.702954054 CEST	53	51096	1.1.1.1	192.168.2.9

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Oct 2, 2024 17:16:44.853156090 CEST	192.168.2.9	1.1.1.1	0xb955	Standard query (0)	18.31.95.13.in-addr.arpa	PTR (Pointer record)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Oct 2, 2024 17:16:44.860466957 CEST	1.1.1.1	192.168.2.9	0xb955	Name error (3)	18.31.95.13.in-addr.arpa	none	none	PTR (Pointer record)	IN (0x0001)	false

Statistics

CPU Usage

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Memory Usage

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Behavior

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System Behavior

Analysis Process: loaddll64.exePID: 1096, Parent PID: 3504

General

Target ID:	0
Start time:	11:16:13
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:	0x7ff7081d0000
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: 3556, Parent PID: 1096

General

Target ID:	1
Start time:	11:16:13
Start date:	02/10/2024
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff70f010000
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: 3376, Parent PID: 1096

General

Target ID:	2
Start time:	11:16:13
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:	0x7ff702e40000
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: 1592, Parent PID: 1096

General

Target ID:	3
Start time:	11:16:13
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:	0x7ff61c990000
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: 1820, Parent PID: 3376

General

Target ID:	5
Start time:	11:16:13
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:	0x7ff61c990000
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: 1524, Parent PID: 1096

General

Target ID:	6
Start time:	11:16:16
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_jdk_management_resource_internal_ResourceNatives_computeRetainedMemory0
Imagebase:	0x7ff61c990000
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: 2228, Parent PID: 1096

General

Target ID:	7
Start time:	11:16:19
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_jdk_management_resource_internal_ResourceNatives_createResourceContext0
Imagebase:	0x7ff61c990000
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

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

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Disassembly

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Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report file.dll

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System Behavior

Analysis Process: loaddll64.exePID: 1096, Parent PID: 3504

General

Chronological Activities

Analysis Process: conhost.exePID: 3556, Parent PID: 1096

General

Chronological Activities

Analysis Process: cmd.exePID: 3376, Parent PID: 1096

Windows Analysis Report
file.dll