7886e911d79668ca934c87d8612f3722fe9be00efa23785940f836d4f37b5373

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 20:11

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General

Target

Cloud-Web_2_86.dll
Size

123KB
MD5

f5e11bef483ed3b0c2436099a61b090b
SHA1

fbf8fb0a380d69ab83365a0f9dfb9d6aa89ca0c8
SHA256

02ff072273315997902c1aaa97d111d99e75bc4624e9b2a3f801d469d9a6bf3f
SHA512

9d7ebcc4e7a6cc3049b90a30d9ab1c7dc23307c4050b79b4de7cb407130424a49222e9ceefd09016f74e7306b87f164c6d91b8adb9367b01eefe91005b24f5f9
SSDEEP

3072:hNG0ZeC/azzmWxd/mZQA31L46eqtJGrCclno:PtzyKYJmmA7eRr4

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\ = "CloudExs40004APIClass Helper"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}	regsvr32.exe

Modifies registry class 48 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass\CurVer\ = "CloudExs40004BHO.CloudExs40004APIClass.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.application\sid = "MzQ2QzIxMzQtQzVBQy1CNWY5LTZGOEYtQjhGNDAzNUVGRkZF"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass.1\ = "CloudExs40004APIClass Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass\ = "CloudExs40004APIClass Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\ProgID\ = "CloudExs40004BHO.CloudExs40004APIClass.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\TypeLib\ = "{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\1.0\ = "CloudExs40004APIClass 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\ = "ICloudExs40004API"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass.1\CLSID\ = "{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Cloud-Web_2_86.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.application	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass\CLSID\ = "{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Cloud-Web_2_86.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\ = "ICloudExs40004API"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\TypeLib\ = "{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40004BHO.CloudExs40004APIClass.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\ = "CloudWeb Web3.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\VersionIndependentProgID\ = "CloudExs40004BHO.CloudExs40004APIClass"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{346C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}\TypeLib\ = "{246C2134-C5AC-B5f9-6F8F-B8F4035EFFFE}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{246C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{146C2134-C5AC-B5F9-6F8F-B8F4035EFFFE}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2724	2512	regsvr32.exe	28
PID 2512 wrote to memory of 2724	2512	regsvr32.exe	28
PID 2512 wrote to memory of 2724	2512	regsvr32.exe	28
PID 2512 wrote to memory of 2724	2512	regsvr32.exe	28
PID 2512 wrote to memory of 2724	2512	regsvr32.exe	28
PID 2512 wrote to memory of 2724	2512	regsvr32.exe	28
PID 2512 wrote to memory of 2724	2512	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Cloud-Web_2_86.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Cloud-Web_2_86.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2724-0-0x0000000000980000-0x0000000000A0D000-memory.dmp

Filesize
564KB

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