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Analysis
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max time kernel
117s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/03/2024, 08:11 UTC
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
be1a12ae42c0f6fa5fa808076d004078.dll
Resource
win7-20240221-en
3 signatures
150 seconds
General
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Target
be1a12ae42c0f6fa5fa808076d004078.dll
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Size
640KB
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MD5
be1a12ae42c0f6fa5fa808076d004078
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SHA1
e6cc87218c634070d110885bf2605f9f20bc81dc
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SHA256
c05f4294102a30ddc3a97b8b8e06bba32fdc03f595292127028b250884c8e7f9
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SHA512
474ab8392dffe666132c64d5c74776957801c3f45b8775acf94b0371fee0684495afa1b5759713885b26b7424444b4ecc8bc6b43ad2af206f1b8d28955f4f3be
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SSDEEP
12288:HkdtYzsZDM2fjYiV/UzxoyS7nUmsn7ltmSvh+u2tePm:EdGzs/0kwolUf7ltmAh+uA+
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 1 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\{CC01FC6C-9F81-24B5-2E5D-F99A8AB2FD6E} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\be1a12ae42c0f6fa5fa808076d004078.brm inc regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\be1a12ae42c0f6fa5fa808076d004078.brm inc\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\be1a12ae42c0f6fa5fa808076d004078.brm inc\Clsid\ = "{CC01FC6C-9F81-24B5-2E5D-F99A8AB2FD6E}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9F81-24B5-2E5D-F99A8AB2FD6E}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9F81-24B5-2E5D-F99A8AB2FD6E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9F81-24B5-2E5D-F99A8AB2FD6E}\ = "brm inc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9F81-24B5-2E5D-F99A8AB2FD6E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\be1a12ae42c0f6fa5fa808076d004078.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9F81-24B5-2E5D-F99A8AB2FD6E}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9F81-24B5-2E5D-F99A8AB2FD6E}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\be1a12ae42c0f6fa5fa808076d004078.brm inc\ = "brm inc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9F81-24B5-2E5D-F99A8AB2FD6E}\ProgID\ = "be1a12ae42c0f6fa5fa808076d004078.brm inc" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3000 wrote to memory of 3016 3000 regsvr32.exe 28 PID 3000 wrote to memory of 3016 3000 regsvr32.exe 28 PID 3000 wrote to memory of 3016 3000 regsvr32.exe 28 PID 3000 wrote to memory of 3016 3000 regsvr32.exe 28 PID 3000 wrote to memory of 3016 3000 regsvr32.exe 28 PID 3000 wrote to memory of 3016 3000 regsvr32.exe 28 PID 3000 wrote to memory of 3016 3000 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\be1a12ae42c0f6fa5fa808076d004078.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3000 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\be1a12ae42c0f6fa5fa808076d004078.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:3016
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