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Analysis
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max time kernel
133s -
max time network
106s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
28/06/2024, 11:22
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Outlook_4.83.901.0_20231017/outlka23.dll
Resource
win7-20240508-en
windows7-x64
2 signatures
150 seconds
Behavioral task
behavioral2
Sample
Outlook_4.83.901.0_20231017/outlka23.dll
Resource
win10v2004-20240611-en
windows10-2004-x64
2 signatures
150 seconds
Behavioral task
behavioral3
Sample
Outlook_4.83.901.0_20231017/outlka64.dll
Resource
win7-20240611-en
windows7-x64
2 signatures
150 seconds
Behavioral task
behavioral4
Sample
Outlook_4.83.901.0_20231017/outlka64.dll
Resource
win10v2004-20240508-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
Outlook_4.83.901.0_20231017/outlka23.dll
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Size
2.5MB
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MD5
9b5cc466186483554a3ee0c4fbd2bee7
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SHA1
d4acb4c21fa3e6b3fe3e7bb94cbfcd6af448a350
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SHA256
3b21b2dfd7b07d6c8b198e45d81abf8431e514b866707932976a16f15693f1ff
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SHA512
458cb1fe705129f828d457e089dd9b022ab4675eeef11792fdcaf4f70da9f439882c29a5dc83bba31f893d2c9bf34c3c49b1437e7b074beeee202eecfda43e0b
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SSDEEP
49152:GxtuksqLe7KWFlIyLfRcPZy9GEuPbP053:G5sqLeBIufRcPZU7
Score
1/10
Malware Config
Signatures
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Modifies registry class 46 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin\CLSID\ = "{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Outlook_4.83.901.0_20231017" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\TypeLib\ = "{EC7B995D-7EFE-412A-8D3A-B3810BB97821}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\ = "IAddin" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\ = "Addin Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Outlook_4.83.901.0_20231017\\outlka23.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\TypeLib\ = "{EC7B995D-7EFE-412A-8D3A-B3810BB97821}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin.1\ = "Addin Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin.1\CLSID\ = "{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin\CurVer\ = "OL2003Addin.Addin.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\ProgID\ = "OL2003Addin.Addin.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin\ = "Addin Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\VersionIndependentProgID\ = "OL2003Addin.Addin" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\TypeLib\ = "{EC7B995D-7EFE-412A-8D3A-B3810BB97821}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Outlook_4.83.901.0_20231017\\outlka23.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\ = "IAddin" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\OL2003Addin.Addin\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DB1EF4A5-6BB4-4FA3-B3F8-4B28A7D5667F}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EC7B995D-7EFE-412A-8D3A-B3810BB97821}\1.0\ = "OL2003Addin 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0A8FF5CA-3B94-4713-B65C-82255CD5658F}\ProxyStubClsid32 regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4424 wrote to memory of 4692 4424 regsvr32.exe 84 PID 4424 wrote to memory of 4692 4424 regsvr32.exe 84 PID 4424 wrote to memory of 4692 4424 regsvr32.exe 84
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\Outlook_4.83.901.0_20231017\outlka23.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4424 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\Outlook_4.83.901.0_20231017\outlka23.dll2⤵
- Modifies registry class
PID:4692
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