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Windows Analysis Report
viYcjIFhBz.dll

Overview

General Information

Sample name:	viYcjIFhBz.dll (renamed file extension from exe to dll, renamed because original name is a hash value)
Original sample name:	3313775ddd80cb904e3bf929a7d2c839e282b63a4f365d21d6caf2b225bf381b.exe
Analysis ID:	1522597
MD5:	48324a46181fd6b43b066c398a693fe0
SHA1:	c4b295e058281f5ce730dd38c3316ef14b8dcabc
SHA256:	3313775ddd80cb904e3bf929a7d2c839e282b63a4f365d21d6caf2b225bf381b
Tags:	exeRavinAcademyuser-JAMESWT_MHT
Infos:

Detection

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

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Found direct / indirect Syscall (likely to bypass EDR)

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

May sleep (evasive loops) to hinder dynamic analysis

Program does not show much activity (idle)

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

Yara signature match

Classification

Process Tree

System is w10x64

loaddll64.exe (PID: 7060 cmdline: loaddll64.exe "C:\Users\user\Desktop\viYcjIFhBz.dll" MD5: 763455F9DCB24DFEECC2B9D9F8D46D52)

conhost.exe (PID: 1476 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cmd.exe (PID: 7048 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\viYcjIFhBz.dll",#1 MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE)

rundll32.exe (PID: 4072 cmdline: rundll32.exe "C:\Users\user\Desktop\viYcjIFhBz.dll",#1 MD5: EF3179D498793BF4234F708D3BE28633)

cleanup

Malware Configuration

⊘No configs have been found

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
viYcjIFhBz.dll	Windows_Trojan_Donutloader_f40e3759	unknown	unknown	0x2899:$x64: 06 B8 03 40 00 80 C3 4C 8B 49 10 49
viYcjIFhBz.dll	Windows_Trojan_Donutloader_5c38878d	unknown	unknown	0x2ff0:$a: 24 48 03 C2 48 89 44 24 28 41 8A 00 84 C0 74 14 33 D2 FF C1

Memory Dumps

Source	Rule	Description	Author	Strings
00000000.00000002.2148920564.000001A119050000.00000004.10000000.00040000.00000000.sdmp	Windows_Trojan_Donutloader_f40e3759	unknown	unknown	0x2499:$x64: 06 B8 03 40 00 80 C3 4C 8B 49 10 49
00000000.00000002.2148920564.000001A119050000.00000004.10000000.00040000.00000000.sdmp	Windows_Trojan_Donutloader_5c38878d	unknown	unknown	0x2bf0:$a: 24 48 03 C2 48 89 44 24 28 41 8A 00 84 C0 74 14 33 D2 FF C1
00000003.00000002.2186246904.000001BA72F20000.00000004.10000000.00040000.00000000.sdmp	Windows_Trojan_Donutloader_f40e3759	unknown	unknown	0x2499:$x64: 06 B8 03 40 00 80 C3 4C 8B 49 10 49
00000003.00000002.2186246904.000001BA72F20000.00000004.10000000.00040000.00000000.sdmp	Windows_Trojan_Donutloader_5c38878d	unknown	unknown	0x2bf0:$a: 24 48 03 C2 48 89 44 24 28 41 8A 00 84 C0 74 14 33 D2 FF C1

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

AV Detection

Multi AV Scanner detection for submitted file

Source: viYcjIFhBz.dll	ReversingLabs: Detection: 28%
Source: viYcjIFhBz.dll	Virustotal: Detection: 37%			Perma Link

Source: viYcjIFhBz.dll

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT

Source:

Binary string: C:\Users\NEO\Desktop\RavinAcademy\RedTeam-01\09\03-ACG\x64\Release\EnableACG.pdb source: viYcjIFhBz.dll

System Summary

Malicious sample detected (through community Yara rule)

Source: viYcjIFhBz.dll, type: SAMPLE	Matched rule: Windows_Trojan_Donutloader_f40e3759 Author: unknown
Source: viYcjIFhBz.dll, type: SAMPLE	Matched rule: Windows_Trojan_Donutloader_5c38878d Author: unknown
Source: 00000000.00000002.2148920564.000001A119050000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Donutloader_f40e3759 Author: unknown
Source: 00000000.00000002.2148920564.000001A119050000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Donutloader_5c38878d Author: unknown
Source: 00000003.00000002.2186246904.000001BA72F20000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Donutloader_f40e3759 Author: unknown
Source: 00000003.00000002.2186246904.000001BA72F20000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Donutloader_5c38878d Author: unknown

Source: viYcjIFhBz.dll, type: SAMPLE	Matched rule: Windows_Trojan_Donutloader_f40e3759 os = windows, severity = x86, creation_date = 2021-09-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Donutloader, fingerprint = 6400b34f762cebb4f91a8d24c5fce647e069a971fb3ec923a63aa98c8cfffab7, id = f40e3759-2531-4e21-946a-fb55104814c0, last_modified = 2022-01-13
Source: viYcjIFhBz.dll, type: SAMPLE	Matched rule: Windows_Trojan_Donutloader_5c38878d os = windows, severity = x86, creation_date = 2021-09-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Donutloader, fingerprint = 3b55ec6c37891880b53633b936d10f94d2b806db1723875e4ac95f8a34d97150, id = 5c38878d-ca94-4fd9-a36e-1ae5fe713ca2, last_modified = 2021-01-13
Source: 00000000.00000002.2148920564.000001A119050000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Donutloader_f40e3759 os = windows, severity = x86, creation_date = 2021-09-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Donutloader, fingerprint = 6400b34f762cebb4f91a8d24c5fce647e069a971fb3ec923a63aa98c8cfffab7, id = f40e3759-2531-4e21-946a-fb55104814c0, last_modified = 2022-01-13
Source: 00000000.00000002.2148920564.000001A119050000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Donutloader_5c38878d os = windows, severity = x86, creation_date = 2021-09-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Donutloader, fingerprint = 3b55ec6c37891880b53633b936d10f94d2b806db1723875e4ac95f8a34d97150, id = 5c38878d-ca94-4fd9-a36e-1ae5fe713ca2, last_modified = 2021-01-13
Source: 00000003.00000002.2186246904.000001BA72F20000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Donutloader_f40e3759 os = windows, severity = x86, creation_date = 2021-09-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Donutloader, fingerprint = 6400b34f762cebb4f91a8d24c5fce647e069a971fb3ec923a63aa98c8cfffab7, id = f40e3759-2531-4e21-946a-fb55104814c0, last_modified = 2022-01-13
Source: 00000003.00000002.2186246904.000001BA72F20000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Donutloader_5c38878d os = windows, severity = x86, creation_date = 2021-09-15, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Donutloader, fingerprint = 3b55ec6c37891880b53633b936d10f94d2b806db1723875e4ac95f8a34d97150, id = 5c38878d-ca94-4fd9-a36e-1ae5fe713ca2, last_modified = 2021-01-13

Source: viYcjIFhBz.dll

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

Source: classification engine

Classification label: mal60.evad.winDLL@6/0@0/0

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

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:1476:120:WilError_03

Source: viYcjIFhBz.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\cmd.exe

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

Source: viYcjIFhBz.dll	ReversingLabs: Detection: 28%
Source: viYcjIFhBz.dll	Virustotal: Detection: 37%

Source: unknown	Process created: C:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\viYcjIFhBz.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\viYcjIFhBz.dll",#1
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\viYcjIFhBz.dll",#1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\viYcjIFhBz.dll",#1	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\viYcjIFhBz.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: vcruntime140.dll	Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Section loaded: kernel.appcore.dll	Jump to behavior

Source: viYcjIFhBz.dll

Static PE information: Image base 0x180000000 > 0x60000000

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

Source: viYcjIFhBz.dll

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT

Source: viYcjIFhBz.dll

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:

Binary string: C:\Users\NEO\Desktop\RavinAcademy\RedTeam-01\09\03-ACG\x64\Release\EnableACG.pdb source: viYcjIFhBz.dll

Source: viYcjIFhBz.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IMPORT is in: .rdata
Source: viYcjIFhBz.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_RESOURCE is in: .rsrc
Source: viYcjIFhBz.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_BASERELOC is in: .reloc
Source: viYcjIFhBz.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG is in: .rdata
Source: viYcjIFhBz.dll	Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IAT is in: .rdata

Source: viYcjIFhBz.dll

Static PE information: section name: .text entropy: 7.085181042380631

Source: C:\Windows\System32\rundll32.exe

Process information set: NOOPENFILEERRORBOX

Jump to behavior

Source: C:\Windows\System32\loaddll64.exe TID: 7016

Thread sleep time: -120000s >= -30000s

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

Thread delayed: delay time: 120000

Jump to behavior

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

Process information queried: ProcessInformation

Jump to behavior

Source: all processes

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

HIPS / PFW / Operating System Protection Evasion

Found direct / indirect Syscall (likely to bypass EDR)

Source: C:\Windows\System32\loaddll64.exe	NtCreateThreadEx: Direct from: 0x7FFDA54E642F			Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	NtMapViewOfSection: Direct from: 0x7FFDA54E63EF			Jump to behavior

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

Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\viYcjIFhBz.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 Rundll32	OS Credential Dumping	1 Process 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 Abuse Elevation Control Mechanism	11 Virtualization/Sandbox Evasion	LSASS Memory	11 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)	1 DLL Side-Loading	2 Software Packing	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	11 Process Injection	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction
Gather Victim Network Information	Server	Cloud Accounts	Launchd	Network Logon Script	Network Logon Script	1 Abuse Elevation Control Mechanism	LSA Secrets	Internet Connection Discovery	SSH	Keylogging	Fallback Channels	Scheduled Transfer	Data Encrypted for Impact
Domain Properties	Botnet	Replication Through Removable Media	Scheduled Task	RC Scripts	RC Scripts	1 DLL Side-Loading	Cached Domain Credentials	Wi-Fi Discovery	VNC	GUI Input Capture	Multiband Communication	Data Transfer Size Limits	Service Stop
DNS	Web Services	External Remote Services	Systemd Timers	Startup Items	Startup Items	1 Obfuscated Files or Information	DCSync	Remote System Discovery	Windows Remote Management	Web Portal Capture	Commonly Used Port	Exfiltration Over C2 Channel	Inhibit System Recovery

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

Source	Detection	Scanner	Label	Link
viYcjIFhBz.dll	29%	ReversingLabs	Win64.Exploit.DonutMarte
viYcjIFhBz.dll	38%	Virustotal		Browse

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1522597
Start date and time:	2024-09-30 12:31:10 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 1m 46s
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:	5
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:	viYcjIFhBz.dll (renamed file extension from exe to dll, renamed because original name is a hash value)
Original Sample Name:	3313775ddd80cb904e3bf929a7d2c839e282b63a4f365d21d6caf2b225bf381b.exe
Detection:	MAL
Classification:	mal60.evad.winDLL@6/0@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
Excluded domains from analysis (whitelisted): client.wns.windows.com
Not all processes where analyzed, report is missing behavior information

Simulations

Behavior and APIs

Time	Type	Description
06:32:04	API Interceptor	1x Sleep call for process: loaddll64.exe modified

File type:	PE32+ executable (DLL) (console) x86-64, for MS Windows
Entropy (8bit):	6.582620679502367
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:	viYcjIFhBz.dll
File size:	33'280 bytes
MD5:	48324a46181fd6b43b066c398a693fe0
SHA1:	c4b295e058281f5ce730dd38c3316ef14b8dcabc
SHA256:	3313775ddd80cb904e3bf929a7d2c839e282b63a4f365d21d6caf2b225bf381b
SHA512:	c448d37220c72afc78987d1f9baa0af21d638d44bf440937ce121b58355cee7b8c1cc1ab94b98250ee4951304e19c9336123a371619dc6959c941df477520fa5
SSDEEP:	768:oJqsIH18dVesduIKICvwphx5412LAtQJ3CS:Zsi1Qes845A2MtQJ3C
TLSH:	D4E2BEA4FA7590E5D672C174CC62AE3DDEB4756A2311978F3384CA6A2F33362712D381
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.........................C.....................................................I.......I.......I./.....I.......Rich...................

File Icon


Icon Hash:	7ae282899bbab082

Static PE Info

General

Entrypoint:	0x180006784
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x180000000
Subsystem:	windows cui
Image File Characteristics:	EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE, DLL
DLL Characteristics:	HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
Time Stamp:	0x6138034B [Wed Sep 8 00:26:51 2021 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:	49b2a09ba0affd137fbb39dbcbe98b23

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 00007F4BACC92417h
call 00007F4BACC925B0h
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 00007F4BACC922A4h
int3
int3
int3
inc eax
push ebx
dec eax
sub esp, 20h
dec eax
mov ebx, ecx
xor ecx, ecx
call dword ptr [00001883h]
dec eax
mov ecx, ebx
call dword ptr [00001872h]
call dword ptr [00001824h]
dec eax
mov ecx, eax
mov edx, C0000409h
dec eax
add esp, 20h
pop ebx
dec eax
jmp dword ptr [00001868h]
dec eax
mov dword ptr [esp+08h], ecx
dec eax
sub esp, 38h
mov ecx, 00000017h
call dword ptr [0000185Ch]
test eax, eax
je 00007F4BACC92419h
mov ecx, 00000002h
int 29h
dec eax
lea ecx, dword ptr [000028D2h]
call 00007F4BACC924BEh
dec eax
mov eax, dword ptr [esp+38h]
dec eax
mov dword ptr [000029B9h], eax
dec eax
lea eax, dword ptr [esp+38h]
dec eax
add eax, 08h
dec eax
mov dword ptr [00002949h], eax
dec eax
mov eax, dword ptr [000029A2h]
dec eax
mov dword ptr [00002813h], eax

Rich Headers

Programming Language:

[IMP] VS2008 SP1 build 30729

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x8a2c	0x78	.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0xc000	0x1e0	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0xb000	0x240	.pdata
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0xd000	0x24	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x82ec	0x70	.rdata
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x8360	0x138	.rdata
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x8000	0x148	.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	0x6288	0x6400	7f0041cdf3bfbb640e821132d69605de	False	0.7600390625	data	7.085181042380631	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rdata	0x8000	0xf7c	0x1000	76762160175c580d126e0d70f88feafd	False	0.412841796875	data	4.303084298678215	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0x9000	0x1604	0x200	4e3cf939c6b9143de49c819a775b7f91	False	0.09375	data	0.44978594583004794	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.pdata	0xb000	0x240	0x400	fd736c92cbe0a306e98479e3ce432762	False	0.3095703125	data	2.4991215249510557	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.rsrc	0xc000	0x1e0	0x200	033f07f58c3c8ea3a98fbea3867bbc54	False	0.53125	data	4.708553337303423	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0xd000	0x24	0x200	e8d395ec3400618299a237c7581593ca	False	0.099609375	data	0.5382440780870934	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country	ZLIB Complexity
RT_MANIFEST	0xc060	0x17d	XML 1.0 document, ASCII text, with CRLF line terminators	English	United States	0.5931758530183727

Imports

DLL	Import
KERNEL32.dll	Process32First, GetCurrentProcess, GetProcessMitigationPolicy, OpenProcess, SetProcessMitigationPolicy, CreateToolhelp32Snapshot, Process32Next, CloseHandle, RtlLookupFunctionEntry, RtlVirtualUnwind, UnhandledExceptionFilter, SetUnhandledExceptionFilter, TerminateProcess, IsProcessorFeaturePresent, IsDebuggerPresent, InitializeSListHead, GetSystemTimeAsFileTime, GetCurrentThreadId, GetCurrentProcessId, QueryPerformanceCounter, RtlCaptureContext
VCRUNTIME140.dll	__std_type_info_destroy_list, __C_specific_handler, memcpy, memset
api-ms-win-crt-stdio-l1-1-0.dll	__acrt_iob_func, __stdio_common_vfprintf
api-ms-win-crt-string-l1-1-0.dll	tolower
api-ms-win-crt-runtime-l1-1-0.dll	_initialize_narrow_environment, _initterm, _cexit, _execute_onexit_table, _initialize_onexit_table, _configure_narrow_argv, _seh_filter_dll, _initterm_e

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

Target ID:	0
Start time:	06:32:04
Start date:	30/09/2024
Path:	C:\Windows\System32\loaddll64.exe
Wow64 process (32bit):	false
Commandline:	loaddll64.exe "C:\Users\user\Desktop\viYcjIFhBz.dll"
Imagebase:	0x7ff6b4df0000
File size:	165'888 bytes
MD5 hash:	763455F9DCB24DFEECC2B9D9F8D46D52
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: Windows_Trojan_Donutloader_f40e3759, Description: unknown, Source: 00000000.00000002.2148920564.000001A119050000.00000004.10000000.00040000.00000000.sdmp, Author: unknown Rule: Windows_Trojan_Donutloader_5c38878d, Description: unknown, Source: 00000000.00000002.2148920564.000001A119050000.00000004.10000000.00040000.00000000.sdmp, Author: unknown
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	1
Start time:	06:32:04
Start date:	30/09/2024
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff66e660000
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:	06:32:04
Start date:	30/09/2024
Path:	C:\Windows\System32\cmd.exe
Wow64 process (32bit):	false
Commandline:	cmd.exe /C rundll32.exe "C:\Users\user\Desktop\viYcjIFhBz.dll",#1
Imagebase:	0x7ff656a10000
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:	06:32:04
Start date:	30/09/2024
Path:	C:\Windows\System32\rundll32.exe
Wow64 process (32bit):	false
Commandline:	rundll32.exe "C:\Users\user\Desktop\viYcjIFhBz.dll",#1
Imagebase:	0x7ff7cd9e0000
File size:	71'680 bytes
MD5 hash:	EF3179D498793BF4234F708D3BE28633
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: Windows_Trojan_Donutloader_f40e3759, Description: unknown, Source: 00000003.00000002.2186246904.000001BA72F20000.00000004.10000000.00040000.00000000.sdmp, Author: unknown Rule: Windows_Trojan_Donutloader_5c38878d, Description: unknown, Source: 00000003.00000002.2186246904.000001BA72F20000.00000004.10000000.00040000.00000000.sdmp, Author: unknown
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 circumvent mechanisms designed to control elevate privileges to gain higher-level permissions. Most modern systems contain native elevation control mechanisms that are intended to limit privileges that a user can perform on a machine. Authorization has to be granted to specific users in order to perform tasks that can be considered of higher risk. An adversary can perform several methods to take advantage of built-in control mechanisms in order to escalate privileges on a system.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	Command: Command Execution, File: File Metadata, File: File Modification, Process: OS API Execution, Process: Process Creation, Process: Process Metadata, User Account: User Account Modification, Windows Registry: Windows Registry Key Modification
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, 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 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 perform software packing or virtual machine software protection to conceal their code. Software packing is a method of compressing or encrypting an executable. Packing an executable changes the file signature in an attempt to avoid signature-based detection. Most decompression techniques decompress the executable code in memory. Virtual machine software protection translates an executable's original code into a special format that only a special virtual machine can run. A virtual machine is then called to run this code.
Tactics:	Defense Evasion
Data Sources:	File: File Metadata
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Module: Module Load, Process: OS API Execution, Process: Process Creation, Script: Script Execution, WMI: WMI Creation, Windows Registry: Windows Registry Key Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process 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:	Linux, macOS, Network, 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 viYcjIFhBz.dll

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Initial Sample

Memory Dumps

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

Rich Headers

Data Directories

Sections

Resources

Imports

Possible Origin

Network Behavior

Statistics

CPU Usage

Memory Usage

Behavior

System Behavior

Analysis Process: loaddll64.exePID: 7060, Parent PID: 4004

General

Chronological Activities

Analysis Process: conhost.exePID: 1476, Parent PID: 7060

General

Chronological Activities

Analysis Process: cmd.exePID: 7048, Parent PID: 7060

General

Chronological Activities

Windows Analysis Report
viYcjIFhBz.dll