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Windows Analysis Report
http://Gertec_Certificates_Installer_1.2.0.0.exe

Overview

General Information

Sample URL:	http://Gertec_Certificates_Installer_1.2.0.0.exe
Analysis ID:	1427910
Infos:

Detection

Score:	2
Range:	0 - 100
Whitelisted:	false
Confidence:	60%

Signatures

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

Sigma detected: Usage Of Web Request Commands And Cmdlets

Tries to resolve domain names, but no domain seems valid (expired dropper behavior)

Very long cmdline option found, this is very uncommon (may be encrypted or packed)

Classification

Analysis Advice

Sample tries to load a library which is not present or installed on the analysis machine, adding the library might reveal more behavior

All domains contacted by the sample do not resolve. The sample is likely an old dropper which does no longer work.

Process Tree

System is w10x64

cmd.exe (PID: 5352 cmdline: C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe" > cmdline.out 2>&1 MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)

conhost.exe (PID: 2332 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

wget.exe (PID: 4324 cmdline: wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe" MD5: 3DADB6E2ECE9C4B3E1E322E617658B60)

cleanup

Sigma Signatures

Sigma detected: Usage Of Web Request Commands And Cmdlets

Source: Process started

Author: James Pemberton / @4A616D6573, Endgame, JHasenbusch, oscd.community, Austin Songer @austinsonger: Data: Command: C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe" > cmdline.out 2>&1, CommandLine: C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe" > cmdline.out 2>&1, CommandLine|base64offset|contains: , Image: C:\Windows\SysWOW64\cmd.exe, NewProcessName: C:\Windows\SysWOW64\cmd.exe, OriginalFileName: C:\Windows\SysWOW64\cmd.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 5728, ProcessCommandLine: C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe" > cmdline.out 2>&1, ProcessId: 5352, ProcessName: cmd.exe

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: unknown

DNS traffic detected: query: gertec_certificates_installer_1.2.0.0.exe replaycode: Name error (3)

Source: unknown

UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: unknown

DNS traffic detected: queries for: gertec_certificates_installer_1.2.0.0.exe

Source: wget.exe, 00000002.00000002.2081491966.0000000000B80000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://Gertec_Certificates_Installer_1.2.0.0.exe
Source: wget.exe, 00000002.00000002.2081544894.0000000001130000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://Gertec_Certificates_Installer_1.2.0.0.exea
Source: wget.exe, 00000002.00000002.2081544894.0000000001130000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://Gertec_Certificates_Installer_1.2.0.0.exeng
Source: wget.exe, 00000002.00000002.2081544894.0000000001135000.00000004.00000020.00020000.00000000.sdmp, wget.exe, 00000002.00000002.2081398214.00000000009CD000.00000004.00000010.00020000.00000000.sdmp, cmdline.out.0.dr	String found in binary or memory: http://gertec_certificates_installer_1.2.0.0.exe/
Source: wget.exe, 00000002.00000002.2081544894.0000000001135000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://gertec_certificates_installer_1.2.0.0.exe/a
Source: wget.exe, 00000002.00000002.2081544894.0000000001135000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://gertec_certificates_installer_1.2.0.0.exe/t

Source: classification engine

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

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

File created: C:\Users\user\Desktop\cmdline.out

Jump to behavior

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

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:2332:120:WilError_03

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

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

Jump to behavior

Source: unknown	Process created: C:\Windows\SysWOW64\cmd.exe C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe" > cmdline.out 2>&1
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\wget.exe wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe"
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\wget.exe wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe"	Jump to behavior

Source: C:\Windows\SysWOW64\cmd.exe	Section loaded: apphelp.dll	Jump to behavior
Source: C:\Windows\SysWOW64\wget.exe	Section loaded: mswsock.dll	Jump to behavior
Source: C:\Windows\SysWOW64\wget.exe	Section loaded: dnsapi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\wget.exe	Section loaded: iphlpapi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\wget.exe	Section loaded: rasadhlp.dll	Jump to behavior

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

Last function: Thread delayed

Source: wget.exe, 00000002.00000002.2081436352.0000000000A58000.00000004.00000020.00020000.00000000.sdmp

Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll

Source: unknown

Process created: C:\Windows\SysWOW64\cmd.exe c:\windows\system32\cmd.exe /c wget -t 2 -v -t 60 -p "c:\users\user\desktop\download" --no-check-certificate --content-disposition --user-agent="mozilla/5.0 (windows nt 6.1; wow64; trident/7.0; as; rv:11.0) like gecko" "http://gertec_certificates_installer_1.2.0.0.exe" > cmdline.out 2>&1

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	1 Command and Scripting Interpreter	1 DLL Side-Loading	1 Process Injection	1 Masquerading	OS Credential Dumping	1 Security Software Discovery	Remote Services	Data from Local System	1 Non-Application Layer Protocol	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 DLL Side-Loading	1 Process Injection	LSASS Memory	1 System Information Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	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

Name	IP	Active	Malicious	Antivirus Detection	Reputation
gertec_certificates_installer_1.2.0.0.exe	unknown	unknown	false		unknown

URLs from Memory and Binaries

Name	Source	Malicious	Reputation
http://Gertec_Certificates_Installer_1.2.0.0.exeng	wget.exe, 00000002.00000002.2081544894.0000000001130000.00000004.00000020.00020000.00000000.sdmp	false	low
http://Gertec_Certificates_Installer_1.2.0.0.exe	wget.exe, 00000002.00000002.2081491966.0000000000B80000.00000004.00000020.00020000.00000000.sdmp	false	low
http://gertec_certificates_installer_1.2.0.0.exe/t	wget.exe, 00000002.00000002.2081544894.0000000001135000.00000004.00000020.00020000.00000000.sdmp	false	low
http://gertec_certificates_installer_1.2.0.0.exe/	wget.exe, 00000002.00000002.2081544894.0000000001135000.00000004.00000020.00020000.00000000.sdmp, wget.exe, 00000002.00000002.2081398214.00000000009CD000.00000004.00000010.00020000.00000000.sdmp, cmdline.out.0.dr	false	low
http://gertec_certificates_installer_1.2.0.0.exe/a	wget.exe, 00000002.00000002.2081544894.0000000001135000.00000004.00000020.00020000.00000000.sdmp	false	low
http://Gertec_Certificates_Installer_1.2.0.0.exea	wget.exe, 00000002.00000002.2081544894.0000000001130000.00000004.00000020.00020000.00000000.sdmp	false	low

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1427910
Start date and time:	2024-04-18 10:30:57 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 1m 36s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	urldownload.jbs
Sample URL:	http://Gertec_Certificates_Installer_1.2.0.0.exe
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:	HCA enabled EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	CLEAN
Classification:	clean2.win@4/1@1/0
EGA Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Unable to download file

Warnings

Exclude process from analysis (whitelisted): dllhost.exe
Not all processes where analyzed, report is missing behavior information

Process:	C:\Windows\SysWOW64\cmd.exe
File Type:	ASCII text, with CRLF line terminators
Category:	modified
Size (bytes):	291
Entropy (8bit):	4.700633524025175
Encrypted:	false
SSDEEP:	6:HRobeurF207TkOXDNavp7TkOXDNaqjt7TkOXDNapmcpGmsdXAK7TkOXDNany:HRspn74OXwvp74OXwY74OXw55K74OXwy
MD5:	4C1B10E90C30C504816FF043CF30E6D3
SHA1:	8FB1FB1A00CA2DDAE5BB07FE25836ED6F9ED1D13
SHA-256:	B2207EE6CE4F8F54254DFF02E7EDACCD74E070ABF12067E6E32D52B2C7CA760F
SHA-512:	E84267D1BC1DBD32950C3B6C53B938F4C2F001A8C105765A328468EC4470EEB57302A58E43699647BB9FBE4BCDC65A9643CF30F5699F082F316F5554F32DD544
Malicious:	false
Reputation:	low
Preview:	--2024-04-18 10:31:43-- http://gertec_certificates_installer_1.2.0.0.exe/..Resolving gertec_certificates_installer_1.2.0.0.exe (gertec_certificates_installer_1.2.0.0.exe)... failed: No such host is known. ...wget: unable to resolve host address 'gertec_certificates_installer_1.2.0.0.exe'..

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 18, 2024 10:31:44.494921923 CEST	60548	53	192.168.2.6	1.1.1.1
Apr 18, 2024 10:31:44.617369890 CEST	53	60548	1.1.1.1	192.168.2.6

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 18, 2024 10:31:44.494921923 CEST	192.168.2.6	1.1.1.1	0x3625	Standard query (0)	gertec_certificates_installer_1.2.0.0.exe	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Apr 18, 2024 10:31:44.617369890 CEST	1.1.1.1	192.168.2.6	0x3625	Name error (3)	gertec_certificates_installer_1.2.0.0.exe	none	none	A (IP address)	IN (0x0001)	false

Target ID:	0
Start time:	10:31:43
Start date:	18/04/2024
Path:	C:\Windows\SysWOW64\cmd.exe
Wow64 process (32bit):	true
Commandline:	C:\Windows\system32\cmd.exe /c wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe" > cmdline.out 2>&1
Imagebase:	0x1c0000
File size:	236'544 bytes
MD5 hash:	D0FCE3AFA6AA1D58CE9FA336CC2B675B
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low
Has exited:	true

Show Windows behavior

Target ID:	1
Start time:	10:31:43
Start date:	18/04/2024
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:	low
Has exited:	true

Show Windows behavior

Target ID:	2
Start time:	10:31:43
Start date:	18/04/2024
Path:	C:\Windows\SysWOW64\wget.exe
Wow64 process (32bit):	true
Commandline:	wget -t 2 -v -T 60 -P "C:\Users\user\Desktop\download" --no-check-certificate --content-disposition --user-agent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko" "http://Gertec_Certificates_Installer_1.2.0.0.exe"
Imagebase:	0x400000
File size:	3'895'184 bytes
MD5 hash:	3DADB6E2ECE9C4B3E1E322E617658B60
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low
Has exited:	true

Show Windows behavior

Chronological Activities

Disassembly

⊘No disassembly

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	Command: Command Execution, Module: Module Load, Process: Process Creation, Process: Process Metadata, Script: Script Execution
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Network, Office 365, 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:	Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Metadata, File: File Modification, Image: Image Metadata, Process: OS API Execution, Process: Process Creation, Process: Process Metadata, Scheduled Job: Scheduled Job Metadata, Scheduled Job: Scheduled Job Modification, Service: Service Creation, Service: Service Metadata
Platforms:	Containers, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software 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, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, 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

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI 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:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report http://Gertec_Certificates_Installer_1.2.0.0.exe

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

System Summary

Snort Signatures

Joe Sandbox Signatures

Networking

System Summary

Malware Analysis System Evasion

HIPS / PFW / Operating System Protection Evasion

Mitre Att&ck Matrix

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

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

C:\Users\user\Desktop\cmdline.out

Static File Info

Network Behavior

Network Port Distribution

UDP Packets

DNS Queries

DNS Answers

Statistics

CPU Usage

Memory Usage

Behavior

System Behavior

Analysis Process: cmd.exePID: 5352, Parent PID: 5728

General

Chronological Activities

Analysis Process: conhost.exePID: 2332, Parent PID: 5352

General

Chronological Activities

Analysis Process: wget.exePID: 4324, Parent PID: 5352

General

Chronological Activities

Disassembly

Windows Analysis Report
http://Gertec_Certificates_Installer_1.2.0.0.exe