0d7b2a6a1166cc076399aabae4b321be6476405ded15c4c099edc924cbc26ef4

Analysis

max time kernel
140s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10/08/2024, 16:35

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General

Target

Cloud-Web_2_86.dll
Size

123KB
MD5

8e546f947aa43b70ef624a4dd0d8620e
SHA1

d1aa7b65ee22fd615caff85771025f6e4c58e895
SHA256

a7c164d2058fda19461a13a5248c3760e92f7b5880bf5b8c6f344d39b089b89d
SHA512

1ac840e44e1f25fb698da782a887ce76c6cf5658dd6238f62a65d3dfff96ea69a6a3c310cdd3ddee4a40ffe7a93f17331aae5e1d425b714a32dd2dae877d8b4f
SSDEEP

3072:hnNG0ZeC/azzmWxd/mZQA3FN46eqtbGrCARnf:rtzyKYJmmApeXrv

Score

6^/10

adware discovery 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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\ = "CloudExs40003APIClass Helper"	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 48 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass\CurVer\ = "CloudExs40003BHO.CloudExs40003APIClass.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\ProgID\ = "CloudExs40003BHO.CloudExs40003APIClass.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\ = "ICloudExs40003API"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\TypeLib\ = "{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\VersionIndependentProgID\ = "CloudExs40003BHO.CloudExs40003APIClass"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Cloud-Web_2_86.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\1.0\ = "CloudExs40003APIClass 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.application	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass.1\ = "CloudExs40003APIClass Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\ = "CloudWeb Web3.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\ = "ICloudExs40003API"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Cloud-Web_2_86.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass.1\CLSID\ = "{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass\CLSID\ = "{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.application\sid = "M0NDQkIzMzMtRjBEQy1COTJhLTdFM0YtRDBGNEI0NEU5OTRB"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudExs40003BHO.CloudExs40003APIClass\ = "CloudExs40003APIClass Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}\TypeLib\ = "{2CCBB333-F0DC-B92a-7E3F-D0F4B44E994A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\TypeLib\ = "{2CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1CCBB333-F0DC-B92A-7E3F-D0F4B44E994A}\TypeLib\Version = "1.0"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 3144	4988	regsvr32.exe	91
PID 4988 wrote to memory of 3144	4988	regsvr32.exe	91
PID 4988 wrote to memory of 3144	4988	regsvr32.exe	91

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Cloud-Web_2_86.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4988
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Cloud-Web_2_86.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3144

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4108,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4020 /prefetch:8
1⤵
PID:2340

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3144-0-0x0000000002500000-0x000000000258D000-memory.dmp

Filesize
564KB

Download