Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
28-06-2024 14:09
Static task
static1
Behavioral task
behavioral1
Sample
1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll
Resource
win7-20240611-en
3 signatures
150 seconds
General
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Target
1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll
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Size
168KB
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MD5
1a6bdf340f49f24e5fc0bde99c8cbfcb
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SHA1
6498d3003ac5fbf161ab91b6de345817f319b460
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SHA256
cfbdf90edcd53b2da6f03f7ce91aa89fb60f3066dac418ab6b77cfa931ac55db
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SHA512
ec8fce6e3970ed77b46a9bb199b4cb227ed445cc8411f682a4caed7991389ad524045c088e8cd75bc9741807729b46023db238099ceda583641765d46c89de2f
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SSDEEP
1536:gS7NbzH1V9EsWssoNT/E40WQ8CRYj+a8i5k0tb0cnHjJUmW65tzKgxWp8U61Z:H7dXqsWsKsCRY18ipjJUmW65tzKNpJ67
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{6B44DEEA-E970-4674-BCF9-E4E4302F6979} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\ = "SmartKey" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\NoExplorer = "1" regsvr32.exe -
Modifies registry class 50 IoCs
Processes:
regsvr32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\ = "SmartKeyBHO Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\CLSID\ = "{6B44DEEA-E970-4674-BCF9-E4E4302F6979}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib\ = "{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{83278EE9-77C2-4B66-B809-E8C520401879} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\ = "SmartKey 1.0 Çü½Ä ¶óÀ̺귯¸®" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\SmartKey.DLL regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\ = "SmartKeyBHO Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ = "ISmartKeyBHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\CurVer\ = "SmartKey.SmartKeyBHO.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib\ = "{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO.1\CLSID\ = "{6B44DEEA-E970-4674-BCF9-E4E4302F6979}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\TypeLib\ = "{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ = "ISmartKeyBHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\ProgID\ = "SmartKey.SmartKeyBHO.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\VersionIndependentProgID\ = "SmartKey.SmartKeyBHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{83278EE9-77C2-4B66-B809-E8C520401879}\ = "SmartKey" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO.1\ = "SmartKeyBHO Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\SmartKey.DLL\AppID = "{83278EE9-77C2-4B66-B809-E8C520401879}" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
regsvr32.exedescription pid process target process PID 2228 wrote to memory of 1744 2228 regsvr32.exe regsvr32.exe PID 2228 wrote to memory of 1744 2228 regsvr32.exe regsvr32.exe PID 2228 wrote to memory of 1744 2228 regsvr32.exe regsvr32.exe PID 2228 wrote to memory of 1744 2228 regsvr32.exe regsvr32.exe PID 2228 wrote to memory of 1744 2228 regsvr32.exe regsvr32.exe PID 2228 wrote to memory of 1744 2228 regsvr32.exe regsvr32.exe PID 2228 wrote to memory of 1744 2228 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class