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Windows Analysis Report
1.bat

Overview

General Information

Sample name:	1.bat
Analysis ID:	1560840
MD5:	d8a72a9431d01f555ed3ed8806d16fd4
SHA1:	b84a16cc240ec55e5c4d59f3b448261262ddd98c
SHA256:	ead16c58358f83fa2f637ef0ffd426f133671f239d3faedad19fdaa5c4445c2a
Tags:	batHUNuser-smica83
Infos:

Detection

CobaltStrike, MetasploitPSPayload

Score:	72
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Yara detected CobaltStrike

Yara detected Metasploit powershell Payload

Program does not show much activity (idle)

Yara signature match

Classification

Process Tree

System is w10x64

cmd.exe (PID: 5016 cmdline: C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\1.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE)

conhost.exe (PID: 980 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Cobalt Strike, CobaltStrike	Cobalt Strike is a paid penetration testing product that allows an attacker to deploy an agent named 'Beacon' on the victim machine. Beacon includes a wealth of functionality to the attacker, including, but not limited to command execution, key logging, file transfer, SOCKS proxying, privilege escalation, mimikatz, port scanning and lateral movement. Beacon is in-memory/file-less, in that it consists of stageless or multi-stage shellcode that once loaded by exploiting a vulnerability or executing a shellcode loader, will reflectively load itself into the memory of a process without touching the disk. It supports C2 and staging over HTTP, HTTPS, DNS, SMB named pipes as well as forward and reverse TCP; Beacons can be daisy-chained. Cobalt Strike comes with a toolkit for developing shellcode loaders, called Artifact Kit.The Beacon implant has become popular amongst targeted attackers and criminal users as it is well written, stable, and highly customizable.	APT 29 APT32 APT41 AQUATIC PANDA Anunak Cobalt Codoso CopyKittens DarkHydrus Earth Baxia FIN6 FIN7 Leviathan Mustang Panda Shell Crew Stone Panda TianWu UNC1878 UNC2452 Winnti Umbrella	http://blog.morphisec.com/new-global-attack-on-point-of-sale-systems http://blog.nsfocus.net/murenshark http://stillu.cc/assets/slides/2023-08-Unmasking%20CamoFei.pdf http://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/bluebottle-banks-targeted-africa http://www.secureworks.com/research/threat-profiles/gold-drake	https://malpedia.caad.fkie.fraunhofer.de/details/win.cobalt_strike

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
1.bat	JoeSecurity_MetasploitPSPayload	Yara detected Metasploit powershell Payload	Joe Security
1.bat	JoeSecurity_CobaltStrike	Yara detected CobaltStrike	Joe Security
1.bat	Msfpayloads_msf_3	Metasploit Payloads - file msf.psh	Florian Roth	0x2da:$s1: [DllImport("kernel32.dll")] public static extern int WaitForSingleObject( 0x104:$s2: public enum MemoryProtection { ExecuteReadWrite = 0x40 } 0x9ba:$s3: .func]::VirtualAlloc(0, 0x9ef:$s4: .func+AllocationType]::Reserve -bOr [ 0x39f:$s5: New-Object System.CodeDom.Compiler.CompilerParameters 0x3de:$s6: ReferencedAssemblies.AddRange(@("System.dll", [PsObject].Assembly.Location)) 0xb7:$s7: public enum AllocationType { Commit = 0x1000, Reserve = 0x2000 } 0x149:$s9: public enum Time : uint { Infinite = 0xFFFFFFFF } 0x4a5:$s10: = [System.Convert]::FromBase64String("/

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: 1.bat

Avira: detected

System Summary

Malicious sample detected (through community Yara rule)

Source: 1.bat, type: SAMPLE

Matched rule: Metasploit Payloads - file msf.psh Author: Florian Roth

Source: 1.bat, type: SAMPLE

Matched rule: Msfpayloads_msf_3 date = 2017-02-09, hash1 = 335cfb85e11e7fb20cddc87e743b9e777dc4ab4e18a39c2a2da1aa61efdbd054, author = Florian Roth, description = Metasploit Payloads - file msf.psh, reference = Internal Research, license = https://creativecommons.org/licenses/by-nc/4.0/

Source: classification engine

Classification label: mal72.troj.winBAT@2/0@0/0

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

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:980:120:WilError_03

Source: unknown

Process created: C:\Windows\System32\cmd.exe C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\1.bat" "

Source: unknown	Process created: C:\Windows\System32\cmd.exe C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\1.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

Section loaded: cmdext.dll

Jump to behavior

Source: C:\Windows\System32\cmd.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: all processes

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

Remote Access Functionality

Yara detected CobaltStrike

Source: Yara match

File source: 1.bat, type: SAMPLE

Yara detected Metasploit powershell Payload

Source: Yara match

File source: 1.bat, type: SAMPLE

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 Scripting	1 Process Injection	1 Process Injection	OS Credential Dumping	System Service 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 DLL Side-Loading	1 DLL Side-Loading	1 DLL Side-Loading	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service

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
1.bat	100%	Avira	TR/PSInject.G4

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1560840
Start date and time:	2024-11-22 11:57:07 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 1m 30s
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:	2
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:	1.bat
Detection:	MAL
Classification:	mal72.troj.winBAT@2/0@0/0
Cookbook Comments:	Found application associated with file extension: .bat Stop behavior analysis, all processes terminated

Warnings

Not all processes where analyzed, report is missing behavior information
VT rate limit hit for: 1.bat

File type:	ASCII text, with very long lines (1298), with CRLF line terminators
Entropy (8bit):	5.968799745994877
TrID:
File name:	1.bat
File size:	3'084 bytes
MD5:	d8a72a9431d01f555ed3ed8806d16fd4
SHA1:	b84a16cc240ec55e5c4d59f3b448261262ddd98c
SHA256:	ead16c58358f83fa2f637ef0ffd426f133671f239d3faedad19fdaa5c4445c2a
SHA512:	33dbb16041a7d2b2904bb201d82b3e75d32d820299bd9e8a7a02bfe98a5c2e8d0e2c159be393ca96cc729d24235328d16a6470311f4defd4fbb65ee85c5e0199
SSDEEP:	48:AiaisCE+MTUEimb7qEa3/n1EL13YbGPE7d9Y4IQTEkCI6eeTt8P9LB2gHOGJOrP:N/sMGR0vn1+1R87MVuCI65A9LEgHPJsP
TLSH:	5051D735170AF78911862595DD27D8C5EE0FA2FA4AEEA2207A9CC255CD0ED1CD32623B
File Content Preview:	Set-StrictMode -Version 2....$eicar = ''....$DoIt = @'..$assembly = @"...using System;...using System.Runtime.InteropServices;...namespace inject {....public class func {.....[Flags] public enum AllocationType { Commit = 0x1000, Reserve = 0x2000 }.....[Fl

File Icon


Icon Hash:	9686878b929a9886

Target ID:	0
Start time:	05:57:59
Start date:	22/11/2024
Path:	C:\Windows\System32\cmd.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\1.bat" "
Imagebase:	0x7ff69a290000
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:	1
Start time:	05:57:59
Start date:	22/11/2024
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff7699e0000
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

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 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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Windows Analysis Report 1.bat

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Threat Intel

Malware Configuration

Yara Signatures

Initial Sample

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

System Summary

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

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

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

Network Behavior

Statistics

CPU Usage

Memory Usage

Behavior

System Behavior

Analysis Process: cmd.exePID: 5016, Parent PID: 2580

General

Chronological Activities

Analysis Process: conhost.exePID: 980, Parent PID: 5016

General

Chronological Activities

Disassembly

Windows Analysis Report
1.bat