Analysis
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max time kernel
122s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system -
submitted
13-07-2024 15:21
Behavioral task
behavioral1
Sample
423e70b4b57696b6ae27336c6281da9a_JaffaCakes118.dll
Resource
win7-20240704-en
windows7-x64
4 signatures
150 seconds
General
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Target
423e70b4b57696b6ae27336c6281da9a_JaffaCakes118.dll
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Size
103KB
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MD5
423e70b4b57696b6ae27336c6281da9a
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SHA1
04b927954a99a44c8b0f2fc27ad6ab733e575a6f
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SHA256
5c03b797f594d7bea1bb18a6b5ad6ea496a35fdb6f0c8a47de15b14d5b94e4c5
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SHA512
18eb20debe4e40387db08d215226aa10ad1cca156c8ed8c5acd00937583fa3ce94220c556fc640c6587acfb52181219efe672b8bac2950ac9fd6b935611db1cb
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SSDEEP
3072:Bem9/LMWcVbJ2BOKDIMlQPxOWZrR/71/0eRsu:BemlLMWcVbJMlDIMmPbZ5V0xu
Malware Config
Signatures
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resource yara_rule behavioral2/memory/380-0-0x0000000010000000-0x000000001004F000-memory.dmp upx -
Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{500BCA15-57A7-4eaf-8143-8C619470B13D} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ = "XML module" regsvr32.exe -
Modifies registry class 27 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\VersionIndependentProgID\ = "XML.XML" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ProgID\ = "XML.XML.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\ = "XML Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC}\.0\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\423e70b4b57696b6ae27336c6281da9a_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CLSID\ = "{500BCA15-57A7-4eaf-8143-8C619470B13D}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CurVer\ = "XML.XML.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\CLSID\ = "{500BCA15-57A7-4eaf-8143-8C619470B13D}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC}\.0\ = "XML Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ = "XML Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC}\.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\TypeLib\ = "{9233C3C0-1472-4091-A505-5580A23BB4AC}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\Install = "OK" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\423e70b4b57696b6ae27336c6281da9a_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\ = "XML Class" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 432 wrote to memory of 380 432 regsvr32.exe 83 PID 432 wrote to memory of 380 432 regsvr32.exe 83 PID 432 wrote to memory of 380 432 regsvr32.exe 83
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\423e70b4b57696b6ae27336c6281da9a_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:432 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\423e70b4b57696b6ae27336c6281da9a_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:380
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