Analysis
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max time kernel
111s -
max time network
113s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17/11/2024, 15:04
Behavioral task
behavioral1
Sample
ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe
Resource
win10v2004-20241007-en
General
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Target
ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe
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Size
64KB
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MD5
4a76a4e930bec401bea9deb37512c9e0
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SHA1
ddd938da715326a366b97d800698edac2fae4749
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SHA256
ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017
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SHA512
db6d5d9408eedc99f796173a6e4fc938810746b15e6176af780041fd74b39f119c127a21b4631230e59a695ccdfddca3aa57392bb1af9383b22716b8ac0c6200
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SSDEEP
1536:8g/9T8ROcQupqqusN3mrS/ztMhkywRFUnTmc5n4IIIIIIIIIIIIIIIIII/IIIII0:8g585LpPCrQt7F84IIIIIIIIIIIIIIIW
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe spoolun.exe" spoolun.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe spoolun.exe" spoolun.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe spoolun.exe" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" spoolun.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe -
Disables RegEdit via registry modification 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (int) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" spoolun.exe -
resource yara_rule behavioral2/files/0x000c000000023b60-3.dat aspack_v212_v242 -
Executes dropped EXE 2 IoCs
pid Process 3996 spoolun.exe 2924 spoolun.exe -
Modifies system executable filetype association 2 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Service Host = "C:\\Windows\\spoolun.exe" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe -
Drops file in Windows directory 44 IoCs
description ioc Process File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Dragon NaturallySpeaking 8 ISO Multilanguage Crack.exe spoolun.exe File created C:\Windows\svchost.exe ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe File opened for modification C:\Windows\svchost.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee Personal Firewall Plus 2004 Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Crack.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\iMesh 4.2 Ad Remover Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee Personal Firewall Plus 2004 Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Keygen.exe spoolun.exe File created C:\Windows\message.dat spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Keygen.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton SystemWorks 2004 Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Keygen.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Dragon NaturallySpeaking 8 ISO Multilanguage Crack.exe spoolun.exe File created C:\Windows\spoolun.exe ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 beta patch2 Crack.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Keygen.exe spoolun.exe File opened for modification C:\Windows\svchost.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton SystemWorks 2004 Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Halo Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Studio MX 2004 AllApps Crack.exe spoolun.exe File created C:\Windows\message.htm spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 beta patch2 Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\iMesh 4.2 Ad Remover Crack.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Keygen.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Borland C++ BuilderX 1.0 Enterprise Edition Keygen.exe spoolun.exe File opened for modification C:\Windows\spoolun.exe ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe File created C:\Windows\spoolun.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Crack.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Keygen.exe spoolun.exe File created C:\Windows\spoolun.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Halo Crack.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Borland C++ BuilderX 1.0 Enterprise Edition Keygen.exe spoolun.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Crack.exe spoolun.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Studio MX 2004 AllApps Crack.exe spoolun.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolun.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolun.exe -
Modifies data under HKEY_USERS 13 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" spoolun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer spoolun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System spoolun.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" spoolun.exe Key created \REGISTRY\USER\.DEFAULT\Software spoolun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft spoolun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows spoolun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion spoolun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies spoolun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached spoolun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced spoolun.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\TelemetrySalt = "3" spoolun.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{40DD6E20-7C17-11CE-A804-00AA003CA9F6} {000214FC-0000-0000-C000-000000000046} 0xFFFF = 0100000000000000e69af5170239db01 spoolun.exe -
Modifies registry class 12 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" /S" ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\Shell\open\command ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2924 spoolun.exe 2924 spoolun.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 316 wrote to memory of 3996 316 ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe 83 PID 316 wrote to memory of 3996 316 ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe 83 PID 316 wrote to memory of 3996 316 ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe"C:\Users\Admin\AppData\Local\Temp\ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe"1⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Disables RegEdit via registry modification
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:316 -
C:\Windows\spoolun.exe"C:\Windows\spoolun.exe" -xInstallOurNiceServicesYes2⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Disables RegEdit via registry modification
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3996
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C:\Windows\spoolun.exeC:\Windows\spoolun.exe -xStartOurNiceServicesYes1⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:2924
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Change Default File Association
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
4Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD54a76a4e930bec401bea9deb37512c9e0
SHA1ddd938da715326a366b97d800698edac2fae4749
SHA256ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017
SHA512db6d5d9408eedc99f796173a6e4fc938810746b15e6176af780041fd74b39f119c127a21b4631230e59a695ccdfddca3aa57392bb1af9383b22716b8ac0c6200