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Windows Analysis Report
https://fat-doc.s3.us-east-2.amazonaws.com/Comprovativo_Abril_KDZlyr_26-04-2024_64.zip?=PGNPUKVOPEHCMOLUMNPIBIKXCKFBEBOPMVCSFREHAACJTZHQQDMNCHWFHRMVUUJNQSRQMTOUIHHAGQCFRPLAPBNDXXJPFJOFRPTBGREXQREVKZKSPGDEIIWPFNUPIKPWUBJRXBKAJOLWXREWZSKWGIZHRDXTZPNQBFBZOIVOHCUUZKSOIVSRKQSLE

Overview

General Information

Sample URL:	https://fat-doc.s3.us-east-2.amazonaws.com/Comprovativo_Abril_KDZlyr_26-04-2024_64.zip?=PGNPUKVOPEHCMOLUMNPIBIKXCKFBEBOPMVCSFREHAACJTZHQQDMNCHWFHRMVUUJNQSRQMTOUIHHAGQCFRPLAPBNDXXJPFJOFRPTBGREXQREVKZKS
Analysis ID:	1433174
Infos:

Detection

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

Signatures

Yara detected ZipBomb

Sigma detected: Script Interpreter Execution From Suspicious Folder

Sigma detected: Suspicious Script Execution From Temp Folder

Sigma detected: WScript or CScript Dropper

Found WSH timer for Javascript or VBS script (likely evasive script)

Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript

Stores files to the Windows start menu directory

Classification

Process Tree

System is w10x64_ra

chrome.exe (PID: 6788 cmdline: "C:\Program Files\Google\Chrome\Application\chrome.exe" --start-maximized --single-argument https://fat-doc.s3.us-east-2.amazonaws.com/Comprovativo_Abril_KDZlyr_26-04-2024_64.zip?=PGNPUKVOPEHCMOLUMNPIBIKXCKFBEBOPMVCSFREHAACJTZHQQDMNCHWFHRMVUUJNQSRQMTOUIHHAGQCFRPLAPBNDXXJPFJOFRPTBGREXQREVKZKSPGDEIIWPFNUPIKPWUBJRXBKAJOLWXREWZSKWGIZHRDXTZPNQBFBZOIVOHCUUZKSOIVSRKQSLE MD5: 45DE480806D1B5D462A7DDE4DCEFC4E4)

chrome.exe (PID: 6608 cmdline: "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2044 --field-trial-handle=1960,i,8941980370019695632,7496778106780440880,262144 --disable-features=OptimizationGuideModelDownloading,OptimizationHints,OptimizationHintsFetching,OptimizationTargetPrediction /prefetch:8 MD5: 45DE480806D1B5D462A7DDE4DCEFC4E4)

rundll32.exe (PID: 7556 cmdline: C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding MD5: EF3179D498793BF4234F708D3BE28633)

wscript.exe (PID: 7700 cmdline: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80)

wscript.exe (PID: 7916 cmdline: "C:\Windows\System32\WScript.exe" "C:\Users\user\Desktop\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80)

wscript.exe (PID: 8180 cmdline: "C:\Windows\System32\WScript.exe" "C:\Users\user\Desktop\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80)

cleanup

Yara Signatures

Dropped Files

Source	Rule	Description	Author	Strings
C:\Users\user\Downloads\596cd038-db66-4afc-815f-ca69191c7893.tmp	JoeSecurity_ZipBomb	Yara detected ZipBomb	Joe Security
C:\Users\user\Downloads\596cd038-db66-4afc-815f-ca69191c7893.tmp	JoeSecurity_ZipBomb	Yara detected ZipBomb	Joe Security

Sigma Signatures

System Summary

Sigma detected: Script Interpreter Execution From Suspicious Folder

Source: Process started

Author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems): Data: Command: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , CommandLine: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , CommandLine|base64offset|contains: , Image: C:\Windows\System32\wscript.exe, NewProcessName: C:\Windows\System32\wscript.exe, OriginalFileName: C:\Windows\System32\wscript.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 4380, ProcessCommandLine: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , ProcessId: 7700, ProcessName: wscript.exe

Sigma detected: Suspicious Script Execution From Temp Folder

Source: Process started

Author: Florian Roth (Nextron Systems), Max Altgelt (Nextron Systems), Tim Shelton: Data: Command: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , CommandLine: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , CommandLine|base64offset|contains: , Image: C:\Windows\System32\wscript.exe, NewProcessName: C:\Windows\System32\wscript.exe, OriginalFileName: C:\Windows\System32\wscript.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 4380, ProcessCommandLine: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , ProcessId: 7700, ProcessName: wscript.exe

Sigma detected: WScript or CScript Dropper

Source: Process started

Author: Margaritis Dimitrios (idea), Florian Roth (Nextron Systems), oscd.community: Data: Command: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , CommandLine: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , CommandLine|base64offset|contains: , Image: C:\Windows\System32\wscript.exe, NewProcessName: C:\Windows\System32\wscript.exe, OriginalFileName: C:\Windows\System32\wscript.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 4380, ProcessCommandLine: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , ProcessId: 7700, ProcessName: wscript.exe

Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript

Source: Process started

Author: Michael Haag: Data: Command: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , CommandLine: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , CommandLine|base64offset|contains: , Image: C:\Windows\System32\wscript.exe, NewProcessName: C:\Windows\System32\wscript.exe, OriginalFileName: C:\Windows\System32\wscript.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 4380, ProcessCommandLine: "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs" , ProcessId: 7700, ProcessName: wscript.exe

Snort Signatures

⊘No Snort rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

Source: unknown	TCP traffic detected without corresponding DNS query: 204.79.197.203
Source: unknown	TCP traffic detected without corresponding DNS query: 204.79.197.203
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic	DNS traffic detected: DNS query: fat-doc.s3.us-east-2.amazonaws.com
Source: global traffic	DNS traffic detected: DNS query: www.google.com

Source: unknown	Network traffic detected: HTTP traffic on port 49673 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 49705 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 49702 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 49703 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 49705
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 49703
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 49702

Source: classification engine

Classification label: mal60.evad.win@18/8@4/138

Source: C:\Program Files\Google\Chrome\Application\chrome.exe

File created: C:\Users\user\Downloads\596cd038-db66-4afc-815f-ca69191c7893.tmp

Source: unknown

Process created: C:\Windows\System32\wscript.exe "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs"

Source: C:\Windows\System32\rundll32.exe

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

Source: unknown

Process created: C:\Windows\System32\rundll32.exe C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

Source: unknown	Process created: C:\Program Files\Google\Chrome\Application\chrome.exe "C:\Program Files\Google\Chrome\Application\chrome.exe" --start-maximized --single-argument https://fat-doc.s3.us-east-2.amazonaws.com/Comprovativo_Abril_KDZlyr_26-04-2024_64.zip?=PGNPUKVOPEHCMOLUMNPIBIKXCKFBEBOPMVCSFREHAACJTZHQQDMNCHWFHRMVUUJNQSRQMTOUIHHAGQCFRPLAPBNDXXJPFJOFRPTBGREXQREVKZKSPGDEIIWPFNUPIKPWUBJRXBKAJOLWXREWZSKWGIZHRDXTZPNQBFBZOIVOHCUUZKSOIVSRKQSLE
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: C:\Program Files\Google\Chrome\Application\chrome.exe "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2044 --field-trial-handle=1960,i,8941980370019695632,7496778106780440880,262144 --disable-features=OptimizationGuideModelDownloading,OptimizationHints,OptimizationHintsFetching,OptimizationTargetPrediction /prefetch:8
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: C:\Program Files\Google\Chrome\Application\chrome.exe "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2044 --field-trial-handle=1960,i,8941980370019695632,7496778106780440880,262144 --disable-features=OptimizationGuideModelDownloading,OptimizationHints,OptimizationHintsFetching,OptimizationTargetPrediction /prefetch:8
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: unknown	Process created: C:\Windows\System32\rundll32.exe C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	Process created: unknown unknown
Source: unknown	Process created: C:\Windows\System32\wscript.exe "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\Temp1_Comprovativo_Abril_KDZlyr_26-04-2024_64.zip\Comprovativo_Abril_KDZlyr_26-04-2024_64\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs"
Source: unknown	Process created: C:\Windows\System32\wscript.exe "C:\Windows\System32\WScript.exe" "C:\Users\user\Desktop\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs"
Source: unknown	Process created: C:\Windows\System32\wscript.exe "C:\Windows\System32\WScript.exe" "C:\Users\user\Desktop\Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs"

Source: C:\Windows\System32\wscript.exe	Section loaded: version.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: kernel.appcore.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: uxtheme.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: sxs.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: vbscript.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: amsi.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: userenv.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: profapi.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: wldp.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: msasn1.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: cryptsp.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: rsaenh.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: cryptbase.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: msisip.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: wshext.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: scrobj.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: version.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: kernel.appcore.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: uxtheme.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: sxs.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: vbscript.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: amsi.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: userenv.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: profapi.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: wldp.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: msasn1.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: cryptsp.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: rsaenh.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: cryptbase.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: msisip.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: wshext.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: scrobj.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: windows.storage.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: version.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: kernel.appcore.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: uxtheme.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: sxs.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: vbscript.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: amsi.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: userenv.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: profapi.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: wldp.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: msasn1.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: cryptsp.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: rsaenh.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: cryptbase.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: msisip.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: wshext.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: scrobj.dll
Source: C:\Windows\System32\wscript.exe	Section loaded: windows.storage.dll

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

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32

Source: C:\Program Files\Google\Chrome\Application\chrome.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Google Drive.lnk
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\YouTube.lnk
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Sheets.lnk
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Gmail.lnk
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Slides.lnk
Source: C:\Program Files\Google\Chrome\Application\chrome.exe	File created: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Docs.lnk

Source: C:\Windows\System32\rundll32.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\wscript.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\wscript.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\wscript.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\wscript.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\wscript.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\wscript.exe	Process information set: NOOPENFILEERRORBOX

Malware Analysis System Evasion

Yara detected ZipBomb

Source: Yara match	File source: C:\Users\user\Downloads\596cd038-db66-4afc-815f-ca69191c7893.tmp, type: DROPPED
Source: Yara match	File source: C:\Users\user\Downloads\596cd038-db66-4afc-815f-ca69191c7893.tmp, type: DROPPED

Source: C:\Windows\System32\wscript.exe	Window found: window name: WSH-Timer
Source: C:\Windows\System32\wscript.exe	Window found: window name: WSH-Timer
Source: C:\Windows\System32\wscript.exe	Window found: window name: WSH-Timer

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

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid

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	11 Scripting	Valid Accounts	Windows Management Instrumentation	11 Scripting	1 Process Injection	1 Masquerading	OS Credential Dumping	1 Virtualization/Sandbox Evasion	Remote Services	Data from Local System	2 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	1 DLL Side-Loading	1 DLL Side-Loading	1 Virtualization/Sandbox Evasion	LSASS Memory	2 System Information Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	1 Registry Run Keys / Startup Folder	1 Registry Run Keys / Startup Folder	1 Rundll32	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	2 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	1 Process Injection	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction
Gather Victim Network Information	Server	Cloud Accounts	Launchd	Network Logon Script	Network Logon Script	1 DLL Side-Loading	LSA Secrets	Internet Connection Discovery	SSH	Keylogging	Fallback Channels	Scheduled Transfer	Data Encrypted for Impact

Source	Detection	Scanner	Label	Link
https://fat-doc.s3.us-east-2.amazonaws.com/Comprovativo_Abril_KDZlyr_26-04-2024_64.zip?=PGNPUKVOPEHCMOLUMNPIBIKXCKFBEBOPMVCSFREHAACJTZHQQDMNCHWFHRMVUUJNQSRQMTOUIHHAGQCFRPLAPBNDXXJPFJOFRPTBGREXQREVKZKSPGDEIIWPFNUPIKPWUBJRXBKAJOLWXREWZSKWGIZHRDXTZPNQBFBZOIVOHCUUZKSOIVSRKQSLE	0%	Avira URL Cloud	safe

Name	IP	Active	Malicious	Reputation
www.google.com	142.250.191.100	true	false	high
s3-r-w.us-east-2.amazonaws.com	3.5.133.164	true	false	high
fat-doc.s3.us-east-2.amazonaws.com	unknown	unknown	false	high

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
3.5.133.164	s3-r-w.us-east-2.amazonaws.com	United States	16509	AMAZON-02US	false
1.1.1.1	unknown	Australia	13335	CLOUDFLARENETUS	false
142.250.190.14	unknown	United States	15169	GOOGLEUS	false
142.250.190.99	unknown	United States	15169	GOOGLEUS	false
142.250.190.67	unknown	United States	15169	GOOGLEUS	false
239.255.255.250	unknown	Reserved	unknown	unknown	false
142.250.191.100	www.google.com	United States	15169	GOOGLEUS	false
142.251.165.84	unknown	United States	15169	GOOGLEUS	false
142.250.191.110	unknown	United States	15169	GOOGLEUS	false

Private

IP
192.168.2.16
192.168.2.5
192.168.2.23
192.168.2.15
192.168.2.14

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1433174
Start date and time:	2024-04-29 10:38:50 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultwindowsinteractivecookbook.jbs
Sample URL:	https://fat-doc.s3.us-east-2.amazonaws.com/Comprovativo_Abril_KDZlyr_26-04-2024_64.zip?=PGNPUKVOPEHCMOLUMNPIBIKXCKFBEBOPMVCSFREHAACJTZHQQDMNCHWFHRMVUUJNQSRQMTOUIHHAGQCFRPLAPBNDXXJPFJOFRPTBGREXQREVKZKSPGDEIIWPFNUPIKPWUBJRXBKAJOLWXREWZSKWGIZHRDXTZPNQBFBZOIVOHCUUZKSOIVSRKQSLE
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:	17
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
Analysis Mode:	stream
Detection:	MAL
Classification:	mal60.evad.win@18/8@4/138

Warnings

Exclude process from analysis (whitelisted): svchost.exe
Excluded IPs from analysis (whitelisted): 142.250.190.99, 142.250.191.110, 142.251.165.84, 34.104.35.123
Excluded domains from analysis (whitelisted): clients2.google.com, accounts.google.com, edgedl.me.gvt1.com, clientservices.googleapis.com, clients.l.google.com
Not all processes where analyzed, report is missing behavior information
Skipping network analysis since amount of network traffic is too extensive

Created / dropped Files

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Docs.lnk

Download File

Process:	C:\Program Files\Google\Chrome\Application\chrome.exe
File Type:	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Has Working directory, Has command line arguments, Icon number=0, Archive, ctime=Tue Oct 3 09:48:42 2023, mtime=Mon Apr 29 07:39:16 2024, atime=Wed Sep 27 04:28:28 2023, length=1210144, window=hide
Category:	dropped
Size (bytes):	2673
Entropy (8bit):	3.987300417494384
Encrypted:	false
SSDEEP:
MD5:	7200F8F24B1071070C0EFFE91F9F29A7
SHA1:	8269D6A28F9ECC415DDEA9B642CB00064E0C0516
SHA-256:	973DC6C0B3D56BCA8CA577FF30C30B8E29BC05828435A9E13F7373FEC70ED658
SHA-512:	458C6617E9088BC3CDB3522E5B5B31BB4EC6DBF8CE554FA296E5C4A62E0B4FC9B7607B94E2271C7CB7D5E855A029667FB3F7D329E5FDC4FAD1B48CBCDD92F1D7
Malicious:	false
Reputation:	unknown
Preview:	L..................F.@.. ...$+.,......v.....N.Yr.... w......................1....P.O. .:i.....+00.../C:\.....................1.....FW.J..PROGRA~1..t......O.I.X.D....B...............J.........P.r.o.g.r.a.m. .F.i.l.e.s...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.7.8.1.....T.1.....CW.V..Google..>......CW.V.X.D....L.....................p+j.G.o.o.g.l.e.....T.1.....CW.V..Chrome..>......CW.V.X.D....M......................8..C.h.r.o.m.e.....`.1.....CW.V..APPLIC~1..H......CW.V.X.D..........................."&.A.p.p.l.i.c.a.t.i.o.n.....n.2. w..;W.+ .CHROME~1.EXE..R......CW.V.X.D...........................H..c.h.r.o.m.e._.p.r.o.x.y...e.x.e.......j...............-.......i...........03.......C:\Program Files\Google\Chrome\Application\chrome_proxy.exe..S.....\.....\.....\.....\.....\.....\.....\.....\.....\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.\.c.h.r.o.m.e._.p.r.o.x.y...e.x.e.*.C.:.\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.F

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Gmail.lnk

Download File

Process:	C:\Program Files\Google\Chrome\Application\chrome.exe
File Type:	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Has Working directory, Has command line arguments, Icon number=0, Archive, ctime=Tue Oct 3 09:48:42 2023, mtime=Mon Apr 29 07:39:16 2024, atime=Wed Sep 27 04:28:28 2023, length=1210144, window=hide
Category:	dropped
Size (bytes):	2675
Entropy (8bit):	4.000897570628229
Encrypted:	false
SSDEEP:
MD5:	43E950AA6217B2E4170F389A9F43D59D
SHA1:	7DE8B2488E3EEA92B0FF05F0865143C64557003C
SHA-256:	C45283C2B3F13FAFDEEFF4A8527A2B689DE7596A95B97C9000D153DE3F8C6823
SHA-512:	CF8371F5F082456B43B228FD8ED3C03DCF6C93BFA8C9DF7B218609E80A1CE1CA80CCAE1F6D52FB840176A57F661150454C29A6E2DFF36DB85044916F5FB8327D
Malicious:	false
Reputation:	unknown
Preview:	L..................F.@.. ...$+.,....E.l.....N.Yr.... w......................1....P.O. .:i.....+00.../C:\.....................1.....FW.J..PROGRA~1..t......O.I.X.D....B...............J.........P.r.o.g.r.a.m. .F.i.l.e.s...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.7.8.1.....T.1.....CW.V..Google..>......CW.V.X.D....L.....................p+j.G.o.o.g.l.e.....T.1.....CW.V..Chrome..>......CW.V.X.D....M......................8..C.h.r.o.m.e.....`.1.....CW.V..APPLIC~1..H......CW.V.X.D..........................."&.A.p.p.l.i.c.a.t.i.o.n.....n.2. w..;W.+ .CHROME~1.EXE..R......CW.V.X.D...........................H..c.h.r.o.m.e._.p.r.o.x.y...e.x.e.......j...............-.......i...........03.......C:\Program Files\Google\Chrome\Application\chrome_proxy.exe..S.....\.....\.....\.....\.....\.....\.....\.....\.....\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.\.c.h.r.o.m.e._.p.r.o.x.y...e.x.e.*.C.:.\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.F

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Google Drive.lnk

Download File

Process:	C:\Program Files\Google\Chrome\Application\chrome.exe
File Type:	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Has Working directory, Has command line arguments, Icon number=0, Archive, ctime=Tue Oct 3 09:48:42 2023, mtime=Fri Oct 6 08:05:01 2023, atime=Wed Sep 27 04:28:28 2023, length=1210144, window=hide
Category:	dropped
Size (bytes):	2689
Entropy (8bit):	4.00848701832791
Encrypted:	false
SSDEEP:
MD5:	A800B34F827A653CD65750E5A29B4BE5
SHA1:	0C13A4DC62F3B0FA7C66033668763993B52A9530
SHA-256:	8E26DEFA435D275929990823BEC9F221249252B71CD7825FDADB1D770A5F861B
SHA-512:	0FEEC4ED27686F23D840D9EBBD4F294A3D1CBFA67FD56C227F75EB35247D042E8DEA4E6EBCD0150CFF0CB10FCDFD589E7CA9C280EBD5232339D4CE35755DBAFC
Malicious:	false
Reputation:	unknown
Preview:	L..................F.@.. ...$+.,.....Y.04...N.Yr.... w......................1....P.O. .:i.....+00.../C:\.....................1.....FW.J..PROGRA~1..t......O.I.X.D....B...............J.........P.r.o.g.r.a.m. .F.i.l.e.s...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.7.8.1.....T.1.....CW.V..Google..>......CW.V.X.D....L.....................p+j.G.o.o.g.l.e.....T.1.....CW.V..Chrome..>......CW.V.X.D....M......................8..C.h.r.o.m.e.....`.1.....CW.V..APPLIC~1..H......CW.V.X.D..........................."&.A.p.p.l.i.c.a.t.i.o.n.....n.2. w..;W.+ .CHROME~1.EXE..R......CW.VFW.E...........................H..c.h.r.o.m.e._.p.r.o.x.y...e.x.e.......j...............-.......i...........03.......C:\Program Files\Google\Chrome\Application\chrome_proxy.exe..S.....\.....\.....\.....\.....\.....\.....\.....\.....\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.\.c.h.r.o.m.e._.p.r.o.x.y...e.x.e.*.C.:.\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.F

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Sheets.lnk

Download File

Process:	C:\Program Files\Google\Chrome\Application\chrome.exe
File Type:	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Has Working directory, Has command line arguments, Icon number=0, Archive, ctime=Tue Oct 3 09:48:42 2023, mtime=Mon Apr 29 07:39:16 2024, atime=Wed Sep 27 04:28:28 2023, length=1210144, window=hide
Category:	dropped
Size (bytes):	2677
Entropy (8bit):	3.9989435479408915
Encrypted:	false
SSDEEP:
MD5:	9BCE03D068D51C6D343512CBF8057335
SHA1:	B699CBEA43D8F6388A12CD8FAEB7FA6B3D675835
SHA-256:	A55560DF0E40C0A4546B3FA7F61B35816A5DA199F4B8B9E3007EA148BD25B880
SHA-512:	CC658B3A88A224F87BCA0B419FBD8867206EDAE12327E3E4695D58E44A313C1059C0D9F6BDA77CBFE86CC713E6C15C27E52D30A97A48E56D5C0851D003C14CCD
Malicious:	false
Reputation:	unknown
Preview:	L..................F.@.. ...$+.,.....Nf.....N.Yr.... w......................1....P.O. .:i.....+00.../C:\.....................1.....FW.J..PROGRA~1..t......O.I.X.D....B...............J.........P.r.o.g.r.a.m. .F.i.l.e.s...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.7.8.1.....T.1.....CW.V..Google..>......CW.V.X.D....L.....................p+j.G.o.o.g.l.e.....T.1.....CW.V..Chrome..>......CW.V.X.D....M......................8..C.h.r.o.m.e.....`.1.....CW.V..APPLIC~1..H......CW.V.X.D..........................."&.A.p.p.l.i.c.a.t.i.o.n.....n.2. w..;W.+ .CHROME~1.EXE..R......CW.V.X.D...........................H..c.h.r.o.m.e._.p.r.o.x.y...e.x.e.......j...............-.......i...........03.......C:\Program Files\Google\Chrome\Application\chrome_proxy.exe..S.....\.....\.....\.....\.....\.....\.....\.....\.....\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.\.c.h.r.o.m.e._.p.r.o.x.y...e.x.e.*.C.:.\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.F

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Slides.lnk

Download File

Process:	C:\Program Files\Google\Chrome\Application\chrome.exe
File Type:	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Has Working directory, Has command line arguments, Icon number=0, Archive, ctime=Tue Oct 3 09:48:42 2023, mtime=Mon Apr 29 07:39:16 2024, atime=Wed Sep 27 04:28:28 2023, length=1210144, window=hide
Category:	dropped
Size (bytes):	2677
Entropy (8bit):	3.9900974441144474
Encrypted:	false
SSDEEP:
MD5:	9C00A0F46CF64E7375D01E8ECB56BC73
SHA1:	E48CD72635B6B354E900EA1C54246DA028C64C96
SHA-256:	2B5044BE8848CA531179FA6FF7375EB46EC2C479672931546DD67F6AD0D1FB44
SHA-512:	23E2747C73C27010666110235AF17162211EF3DFB6504C980847E5A788E499C9C5D85932D19F99EC5D2D69DA644931F998EDC382273101AE1FFD0ABAF1A4E374
Malicious:	false
Reputation:	unknown
Preview:	L..................F.@.. ...$+.,......q.....N.Yr.... w......................1....P.O. .:i.....+00.../C:\.....................1.....FW.J..PROGRA~1..t......O.I.X.D....B...............J.........P.r.o.g.r.a.m. .F.i.l.e.s...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.7.8.1.....T.1.....CW.V..Google..>......CW.V.X.D....L.....................p+j.G.o.o.g.l.e.....T.1.....CW.V..Chrome..>......CW.V.X.D....M......................8..C.h.r.o.m.e.....`.1.....CW.V..APPLIC~1..H......CW.V.X.D..........................."&.A.p.p.l.i.c.a.t.i.o.n.....n.2. w..;W.+ .CHROME~1.EXE..R......CW.V.X.D...........................H..c.h.r.o.m.e._.p.r.o.x.y...e.x.e.......j...............-.......i...........03.......C:\Program Files\Google\Chrome\Application\chrome_proxy.exe..S.....\.....\.....\.....\.....\.....\.....\.....\.....\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.\.c.h.r.o.m.e._.p.r.o.x.y...e.x.e.*.C.:.\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.F

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\YouTube.lnk

Download File

Process:	C:\Program Files\Google\Chrome\Application\chrome.exe
File Type:	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Has Working directory, Has command line arguments, Icon number=0, Archive, ctime=Tue Oct 3 09:48:42 2023, mtime=Mon Apr 29 07:39:16 2024, atime=Wed Sep 27 04:28:28 2023, length=1210144, window=hide
Category:	dropped
Size (bytes):	2679
Entropy (8bit):	3.9991209619637162
Encrypted:	false
SSDEEP:
MD5:	53EB8D5DAB562DADC02B255CD2EE190E
SHA1:	8F711A6D8D368E146C7107C9F8F27D2841B00D4B
SHA-256:	0A80CFA0FA5286D519CCEA162294046BF991A2606D4BE32606ED6D6D0BE746D0
SHA-512:	B5F5E9C63B660BEF6A0716A699E21842138AA0537F2E61AB6200C5CE65EA1A5E9364851C3A6ABCA9DD9B17CC2612E9282A5E5C9BE94C3B43C9A7D6F4807526C6
Malicious:	false
Reputation:	unknown
Preview:	L..................F.@.. ...$+.,....D.].....N.Yr.... w......................1....P.O. .:i.....+00.../C:\.....................1.....FW.J..PROGRA~1..t......O.I.X.D....B...............J.........P.r.o.g.r.a.m. .F.i.l.e.s...@.s.h.e.l.l.3.2...d.l.l.,.-.2.1.7.8.1.....T.1.....CW.V..Google..>......CW.V.X.D....L.....................p+j.G.o.o.g.l.e.....T.1.....CW.V..Chrome..>......CW.V.X.D....M......................8..C.h.r.o.m.e.....`.1.....CW.V..APPLIC~1..H......CW.V.X.D..........................."&.A.p.p.l.i.c.a.t.i.o.n.....n.2. w..;W.+ .CHROME~1.EXE..R......CW.V.X.D...........................H..c.h.r.o.m.e._.p.r.o.x.y...e.x.e.......j...............-.......i...........03.......C:\Program Files\Google\Chrome\Application\chrome_proxy.exe..S.....\.....\.....\.....\.....\.....\.....\.....\.....\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.\.c.h.r.o.m.e._.p.r.o.x.y...e.x.e.*.C.:.\.P.r.o.g.r.a.m. .F.i.l.e.s.\.G.o.o.g.l.e.\.C.h.r.o.m.e.\.A.p.p.l.i.c.a.t.i.o.n.F

C:\Users\user\Downloads\596cd038-db66-4afc-815f-ca69191c7893.tmp

Download File

Process:	C:\Program Files\Google\Chrome\Application\chrome.exe
File Type:	Zip archive data, at least v2.0 to extract, compression method=deflate
Category:	dropped
Size (bytes):	16969
Entropy (8bit):	7.973336412433801
Encrypted:	false
SSDEEP:
MD5:	ED03C15CD57FAF4BF9094CE55D13E99A
SHA1:	0F9CFC2D78B0EA915353D1C0D7B42B1C128F2417
SHA-256:	CB381972FB40C3D96856DDDEB244A480A279573FAEDA18C68843BCFDCCDFCCF6
SHA-512:	44EB60F32F4D684735F5E56F2910171B2369E9E488AC9C9FF06D3EC7F0EC67877AFCC7E538A683090A76454D9F25615432D8306B070227BCE8C5B8747BF83254
Malicious:	true
Yara Hits:	Rule: JoeSecurity_ZipBomb, Description: Yara detected ZipBomb, Source: C:\Users\user\Downloads\596cd038-db66-4afc-815f-ca69191c7893.tmp, Author: Joe Security Rule: JoeSecurity_ZipBomb, Description: Yara detected ZipBomb, Source: C:\Users\user\Downloads\596cd038-db66-4afc-815f-ca69191c7893.tmp, Author: Joe Security
Reputation:	unknown
Preview:	PK........RE.X.....R..f.,.S...Comprovativo_Abril_KDZlyr_26-04-2024_64/Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs$\..,..wD.CG.G/..T.....N.....7.......!..oH.V.y..5.......;.....JB.}uk..n...=_A.qd....kv.vu@sNuiT}\|...b.....x..E..S....7/.<hX..a.h.....<.4%.B\..u...1H..W....#.fc.#C..>.B..m.j.W...=WY...?...b8...)JAd.Y...\.m...j.$.........j.Z.U/..:./+....Z........U...;p....t.kK ..%.'..:C.....#}.d..n..Y..~.-.Y..#L...?.....&..Z...n.+w+....yR.<..e..=.6R..^..y..D..s..}.....y..+4..v....m.o..\fJ6.\a.....0-z..\.....t...l.3{......2lR\..Ni......f/..k.1.X8c@...m."}N..\|.>..6.9.hLoN5m....f.\.\..b:....1....(.p2YE..'.Q...@#.E.=a.....z....P..'.."hk,..j.g....t1........I..3......lo..F...V-c..]W.....9..........C.....\|.)8...Q....{G..)E.....cd..t..B.g..&....e.[._...Oj..]sv(_...\..i.+8.a-...q.T,..\|._L~Q.e-...p.5.l.&...).....CA../Vz...lNt..,Fd.S...g.....T.7..(..8d.U....9..Y..b/{P...X..T..X..u.bZ.FkEsL...gniYO..Y...G~......y.. .......n`..v.)*3bG.{...9...v.'H.Q..c@).L.<f..f.t....

C:\Users\user\Downloads\Comprovativo_Abril_KDZlyr_26-04-2024_64.zip (copy)

Download File

Process:	C:\Program Files\Google\Chrome\Application\chrome.exe
File Type:	Zip archive data, at least v2.0 to extract, compression method=deflate
Category:	dropped
Size (bytes):	0
Entropy (8bit):	0.0
Encrypted:	false
SSDEEP:
MD5:	21C6DB1C126E90A2293E70F11718D64B
SHA1:	DFCE67C04701B02A412CCD624407D3A791ED841B
SHA-256:	7DE30905736469D383302807E6DC60C97FD0C23C4AF12049A1851EA5752EC591
SHA-512:	F11E75A950AE259E2A1D69D558BBC2B6544674C5B476A81C43214B5F1ED40DCBC10225751FB2687D18F17AC1675F2096C09008833E2138D836EF4395D1B82CB8
Malicious:	false
Reputation:	unknown
Preview:	PK........RE.X.....R..f.,.S...Comprovativo_Abril_KDZlyr_26-04-2024_64/Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs$\..,..wD.CG.G/..T.....N.....7.......!..oH.V.y..5.......;.....JB.}uk..n...=_A.qd....kv.vu@sNuiT}\|...b.....x..E..S....7/.<hX..a.h.....<.4%.B\..u...1H..W....#.fc.#C..>.B..m.j.W...=WY...?...b8...)JAd.Y...\.m...j.$.........j.Z.U/..:./+....Z........U...;p....t.kK ..%.'..:C.....#}.d..n..Y..~.-.Y..#L...?.....&..Z...n.+w+....yR.<..e..=.6R..^..y..D..s..}.....y..+4..v....m.o..\fJ6.\a.....0-z..\.....t...l.3{......2lR\..Ni......f/..k.1.X8c@...m."}N..\|.>..6.9.hLoN5m....f.\.\..b:....1....(.p2YE..'.Q...@#.E.=a.....z....P..'.."hk,..j.g....t1........I..3......lo..F...V-c..]W.....9..........C.....\|.)8...Q....{G..)E.....cd..t..B.g..&....e.[._...Oj..]sv(_...\..i.+8.a-...q.T,..\|._L~Q.e-...p.5.l.&...).....CA../Vz...lNt..,Fd.S...g.....T.7..(..8d.U....9..Y..b/{P...X..T..X..u.bZ.FkEsL...gniYO..Y...G~......y.. .......n`..v.)*3bG.{...9...v.'H.Q..c@).L.<f..f.t....

C:\Users\user\Downloads\Comprovativo_Abril_KDZlyr_26-04-2024_64.zip.crdownload

Download File

Process:	C:\Program Files\Google\Chrome\Application\chrome.exe
File Type:	Zip archive data, at least v2.0 to extract, compression method=deflate
Category:	dropped
Size (bytes):	150160258
Entropy (8bit):	7.994797239537333
Encrypted:	true
SSDEEP:
MD5:	21C6DB1C126E90A2293E70F11718D64B
SHA1:	DFCE67C04701B02A412CCD624407D3A791ED841B
SHA-256:	7DE30905736469D383302807E6DC60C97FD0C23C4AF12049A1851EA5752EC591
SHA-512:	F11E75A950AE259E2A1D69D558BBC2B6544674C5B476A81C43214B5F1ED40DCBC10225751FB2687D18F17AC1675F2096C09008833E2138D836EF4395D1B82CB8
Malicious:	false
Reputation:	unknown
Preview:	PK........RE.X.....R..f.,.S...Comprovativo_Abril_KDZlyr_26-04-2024_64/Comprovativo_Abril_KDZlyr_26-04-2024_64.vbs$\..,..wD.CG.G/..T.....N.....7.......!..oH.V.y..5.......;.....JB.}uk..n...=_A.qd....kv.vu@sNuiT}\|...b.....x..E..S....7/.<hX..a.h.....<.4%.B\..u...1H..W....#.fc.#C..>.B..m.j.W...=WY...?...b8...)JAd.Y...\.m...j.$.........j.Z.U/..:./+....Z........U...;p....t.kK ..%.'..:C.....#}.d..n..Y..~.-.Y..#L...?.....&..Z...n.+w+....yR.<..e..=.6R..^..y..D..s..}.....y..+4..v....m.o..\fJ6.\a.....0-z..\.....t...l.3{......2lR\..Ni......f/..k.1.X8c@...m."}N..\|.>..6.9.hLoN5m....f.\.\..b:....1....(.p2YE..'.Q...@#.E.=a.....z....P..'.."hk,..j.g....t1........I..3......lo..F...V-c..]W.....9..........C.....\|.)8...Q....{G..)E.....cd..t..B.g..&....e.[._...Oj..]sv(_...\..i.+8.a-...q.T,..\|._L~Q.e-...p.5.l.&...).....CA../Vz...lNt..,Fd.S...g.....T.7..(..8d.U....9..Y..b/{P...X..T..X..u.bZ.FkEsL...gniYO..Y...G~......y.. .......n`..v.)*3bG.{...9...v.'H.Q..c@).L.<f..f.t....

Static File Info

⊘No static file info

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 achieve persistence by adding a program to a startup folder or referencing it with a Registry run key. Adding an entry to the "run keys" in the Registry or startup folder will cause the program referenced to be executed when a user logs in.These programs will be executed under the context of the user and will have the account's associated permissions level.
Tactics:	Persistence, Privilege Escalation
Data Sources:	Command: Command Execution, File: File Modification, Process: Process Creation, Windows Registry: Windows Registry Key Creation, Windows Registry: Windows Registry Key Modification
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 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:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
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 (ex: `rundll32.exe {DLLname, DLLfunction}` ).
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Metadata, Module: Module Load, Process: Process Creation
Platforms:	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 employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, 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 https://fat-doc.s3.us-east-2.amazonaws.com/Comprovativo_Abril_KDZlyr_26-04-2024_64.zip?=PGNPUKVOPEHCMOLUMNPIBIKXCKFBEBOPMVCSFREHAACJTZHQQDMNCHWFHRMVUUJNQSRQMTOUIHHAGQCFRPLAPBNDXXJPFJOFRPTBGREXQREVKZKSPGDEIIWPFNUPIKPWUBJRXBKAJOLWXREWZSKWGIZHRDXTZPNQBFBZOIVOHCUUZKSOIVSRKQSLE

Overview

General Information

Detection

Signatures

Classification

Process Tree

Yara Signatures

Dropped Files

Sigma Signatures

System Summary

Snort Signatures

Joe Sandbox Signatures

Networking

System Summary

Boot Survival

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Language, Device and Operating System Detection

Mitre Att&ck Matrix

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

Public IPs

Private

General Information

Warnings

Created / dropped Files

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Docs.lnk

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Gmail.lnk

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Google Drive.lnk

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Sheets.lnk

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\Slides.lnk

C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Chrome Apps\YouTube.lnk

C:\Users\user\Downloads\596cd038-db66-4afc-815f-ca69191c7893.tmp

C:\Users\user\Downloads\Comprovativo_Abril_KDZlyr_26-04-2024_64.zip (copy)

C:\Users\user\Downloads\Comprovativo_Abril_KDZlyr_26-04-2024_64.zip.crdownload

Static File Info

Windows Analysis Report
https://fat-doc.s3.us-east-2.amazonaws.com/Comprovativo_Abril_KDZlyr_26-04-2024_64.zip?=PGNPUKVOPEHCMOLUMNPIBIKXCKFBEBOPMVCSFREHAACJTZHQQDMNCHWFHRMVUUJNQSRQMTOUIHHAGQCFRPLAPBNDXXJPFJOFRPTBGREXQREVKZKSPGDEIIWPFNUPIKPWUBJRXBKAJOLWXREWZSKWGIZHRDXTZPNQBFBZOIVOHCUUZKSOIVSRKQSLE