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Windows Analysis Report kPfPqPFeXy

Overview

General Information

Sample Name:	kPfPqPFeXy (renamed file extension from none to dll)
Analysis ID:	556266
MD5:	a407ff2f606842396cfe89c9dd4aa631
SHA1:	d4611f2995c39674e1d47086b6c581844eeb7075
SHA256:	a1413ef584a3952457bb220ac077c2caa7f6a485cfdf225dca13dd2758bb907a
Infos:
Most interesting Screenshot:

Detection

Jupyter

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

Signatures

Antivirus / Scanner detection for submitted sample

Found malware configuration

Yara detected Jupyter backdoor

Multi AV Scanner detection for submitted file

Sigma detected: Suspicious Call by Ordinal

C2 URLs / IPs found in malware configuration

Creates a DirectInput object (often for capturing keystrokes)

Uses 32bit PE files

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

Program does not show much activity (idle)

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

Classification

Process Tree

System is w10x64

loaddll32.exe (PID: 4244 cmdline: loaddll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll" MD5: 7DEB5DB86C0AC789123DEC286286B938)

cmd.exe (PID: 6328 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1 MD5: F3BDBE3BB6F734E357235F4D5898582D)

rundll32.exe (PID: 5596 cmdline: rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1 MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)

cleanup

Malware Configuration

Threatname: Jupyter Backdoor

{"Version": "SP-W3", "C2 url": "http://104.223.123.7"}

Yara Overview

Initial Sample

Source	Rule	Description	Author	Strings
kPfPqPFeXy.dll	JoeSecurity_Jupyter	Yara detected Jupyter backdoor	Joe Security

Sigma Overview

System Summary:

Sigma detected: Suspicious Call by Ordinal

Show sources

Source: Process started

Author: Florian Roth: Data: Command: rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1, CommandLine: rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1, CommandLine|base64offset|contains: , Image: C:\Windows\SysWOW64\rundll32.exe, NewProcessName: C:\Windows\SysWOW64\rundll32.exe, OriginalFileName: C:\Windows\SysWOW64\rundll32.exe, ParentCommandLine: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1, ParentImage: C:\Windows\SysWOW64\cmd.exe, ParentProcessId: 6328, ProcessCommandLine: rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1, ProcessId: 5596

Jbx Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

Antivirus / Scanner detection for submitted sample

Show sources

Source: kPfPqPFeXy.dll

Avira: detected

Found malware configuration

Show sources

Source: kPfPqPFeXy.dll

Malware Configuration Extractor: Jupyter Backdoor {"Version": "SP-W3", "C2 url": "http://104.223.123.7"}

Multi AV Scanner detection for submitted file

Show sources

Source: kPfPqPFeXy.dll

Virustotal: Detection: 38%

Perma Link

Source: kPfPqPFeXy.dll

Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE, DLL

Source: kPfPqPFeXy.dll

Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT

Networking:

C2 URLs / IPs found in malware configuration

Show sources

Source: Malware configuration extractor

URLs: http://104.223.123.7

Source: kPfPqPFeXy.dll

String found in binary or memory: http://104.223.123.7

Source: loaddll32.exe, 00000000.00000002.674727399.0000000000BEB000.00000004.00000020.sdmp

Binary or memory string: <HOOK MODULE="DDRAW.DLL" FUNCTION="DirectDrawCreateEx"/>

System Summary:

Source: kPfPqPFeXy.dll

Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE, DLL

Source: kPfPqPFeXy.dll

Binary or memory string: OriginalFilename3e9be9f5-4827-4aa5-a374-4d6d08933671.dll4 vs kPfPqPFeXy.dll

Source: kPfPqPFeXy.dll

Virustotal: Detection: 38%

Source: kPfPqPFeXy.dll

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

Source: C:\Windows\System32\loaddll32.exe

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

Jump to behavior

Source: classification engine

Classification label: mal80.troj.winDLL@5/0@0/0

Source: C:\Windows\SysWOW64\cmd.exe

Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1

Source: unknown	Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll"
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1	Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1	Jump to behavior

Source: kPfPqPFeXy.dll

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR

Source: kPfPqPFeXy.dll

Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT

Source: C:\Windows\SysWOW64\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\loaddll32.exe

Thread delayed: delay time: 120000

Jump to behavior

Source: all processes

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

Source: C:\Windows\SysWOW64\cmd.exe

Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1

Jump to behavior

Stealing of Sensitive Information:

Yara detected Jupyter backdoor

Show sources

Source: Yara match

File source: kPfPqPFeXy.dll, type: SAMPLE

Remote Access Functionality:

Yara detected Jupyter backdoor

Show sources

Source: Yara match

File source: kPfPqPFeXy.dll, type: SAMPLE

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	Windows Management Instrumentation	Path Interception	Process Injection11	Rundll321	Input Capture1	Virtualization/Sandbox Evasion1	Remote Services	Input Capture1	Exfiltration Over Other Network Medium	Application Layer Protocol1	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Virtualization/Sandbox Evasion1	LSASS Memory	System Information Discovery1	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Junk Data	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Process Injection11	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Steganography	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data

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
kPfPqPFeXy.dll	38%	Virustotal		Browse
kPfPqPFeXy.dll	100%	Avira	HEUR/AGEN.1144625

Dropped Files

No Antivirus matches

Unpacked PE Files

No Antivirus matches

Domains

No Antivirus matches

URLs

Source	Detection	Scanner	Label	Link
http://104.223.123.7	1%	Virustotal		Browse
http://104.223.123.7	0%	Avira URL Cloud	safe

Domains and IPs

Contacted Domains

No contacted domains info

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
http://104.223.123.7	true	1%, Virustotal, Browse Avira URL Cloud: safe	unknown

Contacted IPs

No contacted IP infos

General Information

Joe Sandbox Version:	34.0.0 Boulder Opal
Analysis ID:	556266
Start date:	19.01.2022
Start time:	20:06:34
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 3m 3s
Hypervisor based Inspection enabled:	false
Report type:	full
Sample file name:	kPfPqPFeXy (renamed file extension from none to dll)
Cookbook file name:	defaultwindowsfilecookbook.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	3
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 HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal80.troj.winDLL@5/0@0/0
EGA Information:	Failed
HDC Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Adjust boot time Enable AMSI Stop behavior analysis, all processes terminated
Warnings:	Show All Not all processes where analyzed, report is missing behavior information

Simulations

Behavior and APIs

Time	Type	Description
20:07:36	API Interceptor	1x Sleep call for process: loaddll32.exe modified

Joe Sandbox View / Context

IPs

No context

Domains

No context

ASN

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) (console) Intel 80386 Mono/.Net assembly, for MS Windows
Entropy (8bit):	5.733108758865115
TrID:	Win32 Dynamic Link Library (generic) Net Framework (1011504/3) 50.14% Win32 Dynamic Link Library (generic) (1002004/3) 49.67% Generic Win/DOS Executable (2004/3) 0.10% DOS Executable Generic (2002/1) 0.10% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	kPfPqPFeXy.dll
File size:	33280
MD5:	a407ff2f606842396cfe89c9dd4aa631
SHA1:	d4611f2995c39674e1d47086b6c581844eeb7075
SHA256:	a1413ef584a3952457bb220ac077c2caa7f6a485cfdf225dca13dd2758bb907a
SHA512:	767e0406d51f311150f75cb76b45e265a1606b721bfdfb312e32beb6e5f3f0172666daafea0489ea1b8e96f81510a3a9f5069e1ff3700a54a44be0a52da4f7bb
SSDEEP:	768:BwaHcF9SAUI+0CSgkLJUZ2tGjHGApruPAheBTKM:BwabvtSZRomA/eBf
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L.....Ta...........!.....z............... ........... ....................................@................................

File Icon


Icon Hash:	74f0e4ecccdce0e4

Static PE Info

General
Entrypoint:	0x100099ce
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x10000000
Subsystem:	windows cui
Image File Characteristics:	32BIT_MACHINE, EXECUTABLE_IMAGE, DLL
DLL Characteristics:	NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT
Time Stamp:	0x615481C4 [Wed Sep 29 15:09:56 2021 UTC]
TLS Callbacks:
CLR (.Net) Version:	v4.0.30319
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	dae02f32a21e03ce65412f6e56942daa

Entrypoint Preview

Instruction
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Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x9980	0x4b	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0xa000	0x318	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0xc000	0xc	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x2000	0x8	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x2008	0x48	.text
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x2000	0x79d4	0x7a00	False	0.47473744877	data	5.8965789522	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.rsrc	0xa000	0x318	0x400	False	0.330078125	data	2.5989532529	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0xc000	0xc	0x200	False	0.044921875	data	0.0815394123432	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_VERSION	0xa058	0x2bc	data

Imports

DLL	Import
mscoree.dll	_CorDllMain

Version Infos

Description	Data
Translation	0x0000 0x04b0
LegalCopyright
Assembly Version	0.0.0.0
InternalName	3e9be9f5-4827-4aa5-a374-4d6d08933671.dll
FileVersion	0.0.0.0
ProductVersion	0.0.0.0
FileDescription
OriginalFilename	3e9be9f5-4827-4aa5-a374-4d6d08933671.dll

Network Behavior

No network behavior found

Code Manipulations

Statistics

CPU Usage

Click to jump to process

Memory Usage

Click to jump to process

Behavior

Click to jump to process

System Behavior

Analysis Process: loaddll32.exe PID: 4244 Parent PID: 5376

General

Start time:	20:07:35
Start date:	19/01/2022
Path:	C:\Windows\System32\loaddll32.exe
Wow64 process (32bit):	true
Commandline:	loaddll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll"
Imagebase:	0xcf0000
File size:	116736 bytes
MD5 hash:	7DEB5DB86C0AC789123DEC286286B938
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Chronological Activities

Analysis Process: cmd.exe PID: 6328 Parent PID: 4244

General

Start time:	20:07:35
Start date:	19/01/2022
Path:	C:\Windows\SysWOW64\cmd.exe
Wow64 process (32bit):	true
Commandline:	cmd.exe /C rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1
Imagebase:	0x11d0000
File size:	232960 bytes
MD5 hash:	F3BDBE3BB6F734E357235F4D5898582D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Chronological Activities

Analysis Process: rundll32.exe PID: 5596 Parent PID: 6328

General

Start time:	20:07:36
Start date:	19/01/2022
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe "C:\Users\user\Desktop\kPfPqPFeXy.dll",#1
Imagebase:	0xf30000
File size:	61952 bytes
MD5 hash:	D7CA562B0DB4F4DD0F03A89A1FDAD63D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Chronological Activities

Disassembly

Code Analysis

Reset < >

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:	API monitoring, DLL monitoring, File monitoring, Named Pipes, Process monitoring
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.
Tactics:	Defense Evasion
Data Sources:	DLL monitoring, Loaded DLLs, Process command-line parameters, Process monitoring
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:	Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use methods of capturing user input to obtain credentials or collect information. During normal system usage, users often provide credentials to various different locations, such as login pages/portals or system dialog boxes. Input capture mechanisms may be transparent to the user (e.g. Credential API Hooking ) or rely on deceiving the user into providing input into what they believe to be a genuine service (e.g. Web Portal Capture ).
Tactics:	Collection, Credential Access
Data Sources:	API monitoring, Binary file metadata, DLL monitoring, Kernel drivers, Loaded DLLs, PowerShell logs, Process command-line parameters, Process monitoring, User interface, Windows Registry, Windows event logs
Platforms:	Linux, macOS, 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:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using 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:	DNS records, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Windows Analysis Report kPfPqPFeXy

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Threatname: Jupyter Backdoor

Yara Overview

Initial Sample

Sigma Overview

System Summary:

Jbx Signature Overview

AV Detection:

Compliance:

Networking:

Key, Mouse, Clipboard, Microphone and Screen Capturing:

System Summary:

Hooking and other Techniques for Hiding and Protection:

Malware Analysis System Evasion:

Anti Debugging:

HIPS / PFW / Operating System Protection Evasion:

Stealing of Sensitive Information:

Remote Access Functionality:

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

Contacted URLs

Contacted IPs

General Information

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASN

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Version Infos

Network Behavior

Code Manipulations

Statistics

CPU Usage

Memory Usage

Behavior

System Behavior

Analysis Process: loaddll32.exe PID: 4244 Parent PID: 5376

General

Chronological Activities

Analysis Process: cmd.exe PID: 6328 Parent PID: 4244

General

Chronological Activities