f957eecca8da34427457a12dc3f6d4ce8048c50aade8f7b79560050519f3c059

Analysis

max time kernel
137s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-03-2024 23:22

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General

Target

b5ea3461d68324030699f96158e28a95.dll
Size

104KB
MD5

b5ea3461d68324030699f96158e28a95
SHA1

de886f95bb3eb4b26582370a9d80bad56da40431
SHA256

f957eecca8da34427457a12dc3f6d4ce8048c50aade8f7b79560050519f3c059
SHA512

31dbc71b2930015cdbf8c147cd04ceca063363d39adaba53d19552571c92306566fb7b098e10bf8178cbd474f1e3f4586996c595f2cc403c88f19498eb1981b2
SSDEEP

3072:ORmvNZJZZ+RwCLfVaVMzpxo4m2flUx3kkko:emtHaLfgazpe2Cx3kkko

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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\	regsvr32.exe

Modifies registry class 47 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\AppID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}\1.0\ = "BHO 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer.1\ = "CFffPlayer Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b5ea3461d68324030699f96158e28a95.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\ = "IFffPlayer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\ProgID\ = "BHO.FffPlayer.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b5ea3461d68324030699f96158e28a95.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer.1\CLSID\ = "{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\CurVer\ = "BHO.FffPlayer.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\VersionIndependentProgID\ = "BHO.FffPlayer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\TypeLib\ = "{D0BF843D-B065-483F-9330-CF1DE76F1492}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\ = "CFffPlayer Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\ = "IFffPlayer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\TypeLib\ = "{D0BF843D-B065-483F-9330-CF1DE76F1492}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\CLSID\ = "{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D0BF843D-B065-483F-9330-CF1DE76F1492}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7EB073A3-D411-4474-AD30-097193FDD410}\TypeLib\ = "{D0BF843D-B065-483F-9330-CF1DE76F1492}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\ = "CFffPlayer Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BB539747-416E-4ef8-ACB0-5C9F0C84BFA8}\ProgID	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 4960	2920	regsvr32.exe	94
PID 2920 wrote to memory of 4960	2920	regsvr32.exe	94
PID 2920 wrote to memory of 4960	2920	regsvr32.exe	94

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b5ea3461d68324030699f96158e28a95.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b5ea3461d68324030699f96158e28a95.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4960

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 --no-appcompat-clear --mojo-platform-channel-handle=3824 --field-trial-handle=2268,i,8796662530135712346,11409037572378858775,262144 --variations-seed-version /prefetch:8
1⤵
PID:1744

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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