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Windows Analysis Report
Installer.bat

Overview

General Information

Sample name:	Installer.bat
Analysis ID:	1428662
MD5:	17033b44988e812ebade9022cba3584f
SHA1:	3c98c9f36212cfeec679057cabb1ea5d4bffb1a1
SHA256:	deda21bef6613c01484a7c219070f1c510d96a31373a9561e31a8e45b3c94473
Infos:

Detection

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

Signatures

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

Queries the volume information (name, serial number etc) of a device

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

Uses cacls to modify the permissions of files

Classification

Process Tree

System is w10x64

cmd.exe (PID: 6520 cmdline: C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\Installer.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE)

conhost.exe (PID: 6536 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cacls.exe (PID: 6596 cmdline: "C:\Windows\system32\cacls.exe" "C:\Windows\system32\config\system" MD5: A353590E06C976809F14906746109758)

cleanup

Malware Configuration

⊘No configs have been found

Yara Signatures

⊘No yara matches

Sigma Signatures

⊘No Sigma rule has matched

Snort Signatures

⊘No Snort 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: classification engine

Classification label: clean2.winBAT@4/1@0/0

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

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6536:120:WilError_03

Source: unknown

Process created: C:\Windows\System32\cmd.exe C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\Installer.bat" "

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

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

Jump to behavior

Source: unknown	Process created: C:\Windows\System32\cmd.exe C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\Installer.bat" "
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\cacls.exe "C:\Windows\system32\cacls.exe" "C:\Windows\system32\config\system"
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\cacls.exe "C:\Windows\system32\cacls.exe" "C:\Windows\system32\config\system"	Jump to behavior

Source: C:\Windows\System32\cmd.exe	Section loaded: cmdext.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: uxtheme.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: windows.storage.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: wldp.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: propsys.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: ndfapi.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: wdi.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: iphlpapi.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: duser.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: xmllite.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: atlthunk.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: textshaping.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: textinputframework.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: coreuicomponents.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: coremessaging.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: ntmarta.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: wintypes.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: wintypes.dll	Jump to behavior
Source: C:\Windows\System32\cmd.exe	Section loaded: wintypes.dll	Jump to behavior
Source: C:\Windows\System32\cacls.exe	Section loaded: ntmarta.dll	Jump to behavior
Source: C:\Windows\System32\cacls.exe	Section loaded: ntmarta.dll	Jump to behavior

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

Process created: C:\Windows\System32\cacls.exe "C:\Windows\system32\cacls.exe" "C:\Windows\system32\config\system"

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

Process information set: NOOPENFILEERRORBOX

Jump to behavior

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

Last function: Thread delayed

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

Process created: C:\Windows\System32\cacls.exe "C:\Windows\system32\cacls.exe" "C:\Windows\system32\config\system"

Jump to behavior

Source: C:\Windows\System32\cmd.exe	Queries volume information: C:\ VolumeInformation			Jump to behavior
Source: C:\Windows\System32\cmd.exe	Queries volume information: C:\ VolumeInformation			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	1 Scripting	Valid Accounts	Windows Management Instrumentation	1 Services File Permissions Weakness	1 Services File Permissions Weakness	1 Services File Permissions Weakness	OS Credential Dumping	11 System Information Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	1 Scripting	11 Process Injection	11 Process Injection	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	1 DLL Side-Loading	1 DLL Side-Loading	1 DLL Side-Loading	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact

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
Installer.bat	0%	Virustotal		Browse
Installer.bat	0%	ReversingLabs

Dropped Files

⊘No Antivirus matches

Unpacked PE Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1428662
Start date and time:	2024-04-19 11:27:43 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 2m 9s
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:	4
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:	EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	Installer.bat
Detection:	CLEAN
Classification:	clean2.winBAT@4/1@0/0
Cookbook Comments:	Found application associated with file extension: .bat Stop behavior analysis, all processes terminated

Warnings

Exclude process from analysis (whitelisted): dllhost.exe
Excluded IPs from analysis (whitelisted): 52.159.126.152
Excluded domains from analysis (whitelisted): client.wns.windows.com, wns.notify.trafficmanager.net
Not all processes where analyzed, report is missing behavior information

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

\Device\Null

Download File

Process:	C:\Windows\System32\cacls.exe
File Type:	ASCII text, with CRLF line terminators
Category:	dropped
Size (bytes):	121
Entropy (8bit):	4.323081947925383
Encrypted:	false
SSDEEP:	3:ohAIQDMCZArMsxo2xRSvFFwIFMW3Gtvn:ohYD+82xmwIyHtv
MD5:	43B1EC1407EA9C0219A563FFFEEAE780
SHA1:	C42041802E99A95E6CBAE13E3E20EBFBA3237BB2
SHA-256:	7E5146BF6F0B6AA61AFD4E3A6031D6DEF0F37523A22D75086B8E0E21D22E4B16
SHA-512:	5307D7E089BEA4DAC250D0B606C80DF13CCA0A7ECB622BF61B37AD736FFC44EA68F9B993E4743F2AB220FF950E9D9B423524D4E10C0B2D1CE280A7D9B5095DE0
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	C:\Windows\system32\config\SYSTEM NT AUTHORITY\SYSTEM:F .. BUILTIN\Administrators:F ....

Static File Info

General

File type:	DOS batch file, ASCII text, with CRLF line terminators
Entropy (8bit):	5.150691798368533
TrID:
File name:	Installer.bat
File size:	544 bytes
MD5:	17033b44988e812ebade9022cba3584f
SHA1:	3c98c9f36212cfeec679057cabb1ea5d4bffb1a1
SHA256:	deda21bef6613c01484a7c219070f1c510d96a31373a9561e31a8e45b3c94473
SHA512:	9f54c72cafeedb4b332e8c4d438e88475d1757ea4ffdf23d13d0f1bae55806b3fe58cf48002085f5a867c5d8906c4b7674584c4070288e35026037cdc33eb282
SSDEEP:	12:wpzHipHmMSI88dfKLerEtm0yy5No9kj2rxvbHVZz:wpzHOeI8sfJ0yb20BHVx
TLSH:	95F04C14004F861322A698B0C7013149E569F2473D188460F52260D0DE7F246DEEEDED
File Content Preview:	@echo off....>nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\system32\config\system"....if '%errorlevel%' NEQ '0' (.. goto UACPrompt..) else ( goto gotAdmin )....:UACPrompt.. echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\get

File Icon


Icon Hash:	9686878b929a9886

Network Behavior

⊘No network behavior found

Statistics

CPU Usage

Click to jump to process

Memory Usage

Click to jump to process

High Level Behavior Distribution

Click to dive into process behavior distribution

Behavior

Click to jump to process

System Behavior

Analysis Process: cmd.exePID: 6520, Parent PID: 4088

General

Target ID:	1
Start time:	11:29:03
Start date:	19/04/2024
Path:	C:\Windows\System32\cmd.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\Installer.bat" "
Imagebase:	0x7ff71b400000
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: conhost.exePID: 6536, Parent PID: 6520

General

Target ID:	2
Start time:	11:29:03
Start date:	19/04/2024
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff704000000
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: cacls.exePID: 6596, Parent PID: 6520

General

Target ID:	3
Start time:	11:29:03
Start date:	19/04/2024
Path:	C:\Windows\System32\cacls.exe
Wow64 process (32bit):	false
Commandline:	"C:\Windows\system32\cacls.exe" "C:\Windows\system32\config\system"
Imagebase:	0x7ff6884b0000
File size:	34'304 bytes
MD5 hash:	A353590E06C976809F14906746109758
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	moderate
Has exited:	true

Show Windows behavior

Chronological Activities

Disassembly

⊘No disassembly

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may execute their own malicious payloads by hijacking the binaries used by services. Adversaries may use flaws in the permissions of Windows services to replace the binary that is executed upon service start. These service processes may automatically execute specific binaries as part of their functionality or to perform other actions. If the permissions on the file system directory containing a target binary, or permissions on the binary itself are improperly set, then the target binary may be overwritten with another binary using user-level permissions and executed by the original process. If the original process and thread are running under a higher permissions level, then the replaced binary will also execute under higher-level permissions, which could include SYSTEM.
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Process: Process Creation, Service: Service Metadata
Platforms:	Windows
Url:	Open detailed description by Mitre

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:	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

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Warning!

Windows Analysis Report Installer.bat

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

Snort Signatures

Joe Sandbox Signatures

System Summary

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

HIPS / PFW / Operating System Protection Evasion

Language, Device and Operating System Detection

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

\Device\Null

Static File Info

General

File Icon

Network Behavior

Statistics

CPU Usage

Memory Usage

High Level Behavior Distribution

back

Behavior

System Behavior

Analysis Process: cmd.exePID: 6520, Parent PID: 4088

General

Chronological Activities

Analysis Process: conhost.exePID: 6536, Parent PID: 6520

General

Chronological Activities

Analysis Process: cacls.exePID: 6596, Parent PID: 6520

General

Chronological Activities

Disassembly

Windows Analysis Report
Installer.bat