Analysis Report 17ff4f90000.dll

ID:	402957
Product:	CloudBasic
Start time:	16:32:19
Start date:	03.05.2021
Sample:	17ff4f90000.dll
Cookbook:	default.jbs
System description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Architecture:	WINDOWS
MD5:	af9bfecd709345a31479a9d78feb8703
SHA1:	f46396bc44fcf89f6d79279bca9f2b7a6b7c75e2
SHA256:	0c4ffaad8b782ad220d6529262c2f1604a285fbad34e336a88b473b736e64343
Filetype:	Win64 Dynamic Link Library (generic) (102004/3) 84.88%

Name	Type	MD5	SHA1	SHA256

AV Detection:

Antivirus / Scanner detection for submitted sample

Source: 17ff4f90000.dll

Avira: detected

Machine Learning detection for sample

Source: 17ff4f90000.dll

Joe Sandbox ML: detected

Networking:

URLs found in memory or binary data

Source: 17ff4f90000.dll	String found in binary or memory: http://constitution.org/usdeclar.txt
Source: 17ff4f90000.dll	String found in binary or memory: http://constitution.org/usdeclar.txtC:
Source: 17ff4f90000.dll	String found in binary or memory: http://https://file://USER.ID%lu.exe/upd

Key, Mouse, Clipboard, Microphone and Screen Capturing:

Yara detected Ursnif

Source: Yara match

File source: 17ff4f90000.dll, type: SAMPLE

E-Banking Fraud:

Yara detected Ursnif

Source: Yara match

File source: 17ff4f90000.dll, type: SAMPLE

System Summary:

PE file does not import any functions

Source: 17ff4f90000.dll

Static PE information: No import functions for PE file found

Tries to load missing DLLs

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

Classification label

Source: classification engine

Classification label: mal60.troj.winDLL@7/0@0/0

PE file has an executable .text section and no other executable section

Source: 17ff4f90000.dll

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

Reads software policies

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

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

Jump to behavior

Runs a DLL by calling functions

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

Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\17ff4f90000.dll,#1

Spawns processes

Source: unknown	Process created: C:\Windows\System32\loaddll64.exe loaddll64.exe 'C:\Users\user\Desktop\17ff4f90000.dll'
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\17ff4f90000.dll',#1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\17ff4f90000.dll,#1
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\17ff4f90000.dll',#1
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\17ff4f90000.dll',#1			Jump to behavior
Source: C:\Windows\System32\loaddll64.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\17ff4f90000.dll,#1			Jump to behavior
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\17ff4f90000.dll',#1			Jump to behavior

Found GUI installer (many successful clicks)

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

PE file has a high image base, often used for DLLs

Source: 17ff4f90000.dll

Static PE information: Image base 0x180000000 > 0x60000000

Hooking and other Techniques for Hiding and Protection:

Yara detected Ursnif

Source: Yara match

File source: 17ff4f90000.dll, type: SAMPLE

Disables application error messsages (SetErrorMode)

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

Malware Analysis System Evasion:

Program does not show much activity (idle)

Source: all processes

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

May try to detect the virtual machine to hinder analysis (VM artifact strings found in memory)

Source: rundll32.exe, 00000002.00000002.232808865.0000017B37380000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.226257233.000001E646780000.00000002.00000001.sdmp	Binary or memory string: A Virtual Machine could not be started because Hyper-V is not installed.
Source: rundll32.exe, 00000002.00000002.232808865.0000017B37380000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.226257233.000001E646780000.00000002.00000001.sdmp	Binary or memory string: A communication protocol error has occurred between the Hyper-V Host and Guest Compute Service.
Source: rundll32.exe, 00000002.00000002.232808865.0000017B37380000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.226257233.000001E646780000.00000002.00000001.sdmp	Binary or memory string: The communication protocol version between the Hyper-V Host and Guest Compute Services is not supported.
Source: rundll32.exe, 00000002.00000002.232808865.0000017B37380000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.226257233.000001E646780000.00000002.00000001.sdmp	Binary or memory string: An unknown internal message was received by the Hyper-V Compute Service.

Anti Debugging:

Checks if the current process is being debugged

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

Process queried: DebugPort

Jump to behavior

Program does not show much activity (idle)

Source: all processes

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

HIPS / PFW / Operating System Protection Evasion:

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

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

Process created: C:\Windows\System32\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\17ff4f90000.dll',#1

Jump to behavior

Stealing of Sensitive Information:

Yara detected Ursnif

Source: Yara match

File source: 17ff4f90000.dll, type: SAMPLE

Remote Access Functionality:

Yara detected Ursnif

Source: Yara match

File source: 17ff4f90000.dll, type: SAMPLE