3c72f2851f20fee1e57a73226a2d4a54d88f55fbcaa817bac22eaf01cb79c8de

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13/07/2024, 08:55

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General

Target
foxiecoreu.dll
Size 544KB
Sample240713-kvncravarm
SHA256 63505ff185c63732a42ded30d858906dfc3c4e3922c1f124841a0171f4f56cc5
MD5 2db21b165a85aef52c5074fb7f166938
SHA1 a9512fd2530a50b3faccad9594b552cd78a9d1cc
SHA512 ee9dc74756e1826b48a47d4e208609e2619d88b88952df6036852cb256f805c8469079ff585007ed132eea46760830eb177d671d121eb603e2af92423e984ce9
SSDEEP 12288:bAW5Drce/fYBUhLw625TDre6kNOaMZzVB3m2QaMPHfyVE7562us5bUAdlUz22EXu:MrOoetG322QaMPHfyVE7562us5bUAdlE
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 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\{C65185B1-D52B-44A9-861F-8201B50D1F37}	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar\{09C02180-3B46-4CD8-83FF-34DAF442BDEF} = "MultiTab Tool"	regsvr32.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{53B8B576-27EF-4CF5-AD81-0487F96BF21F}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09C02180-3B46-4CD8-83FF-34DAF442BDEF}\ProgID\ = "Foxie.FoxieCore.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5B18FD94-2904-4AA0-AD63-7231D59E63A2}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{53B8B576-27EF-4CF5-AD81-0487F96BF21F}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72FC8424-86D6-4100-8846-FF211F275897}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{96EB9C1C-140F-44D8-8674-840B318B7E0B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.FoxieCore.1\ = "MultiTab Tool"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5B18FD94-2904-4AA0-AD63-7231D59E63A2}\ = "HttpFilter Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{96EB9C1C-140F-44D8-8674-840B318B7E0B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C65185B1-D52B-44A9-861F-8201B50D1F37}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{53B8B576-27EF-4CF5-AD81-0487F96BF21F}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.HttpFilter.1\CLSID\ = "{5B18FD94-2904-4AA0-AD63-7231D59E63A2}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6DB1D8A4-3493-4414-9FD2-3924617491B5}\TypeLib\ = "{53B8B576-27EF-4CF5-AD81-0487F96BF21F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{96EB9C1C-140F-44D8-8674-840B318B7E0B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.FoxieSecurityModule\ = "FoxieSecurityModule Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.FoxieSecurityModule\CurVer\ = "Foxie.FoxieSecurityModule.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Name-Space Handler\HTTP\*\CLSID = "{5B18FD94-2904-4AA0-AD63-7231D59E63A2}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.HttpFilter	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09C02180-3B46-4CD8-83FF-34DAF442BDEF}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6DB1D8A4-3493-4414-9FD2-3924617491B5}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Name-Space Handler\HTTP	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.FoxieCore\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6DB1D8A4-3493-4414-9FD2-3924617491B5}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{96EB9C1C-140F-44D8-8674-840B318B7E0B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.HttpFilter.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{96EB9C1C-140F-44D8-8674-840B318B7E0B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C65185B1-D52B-44A9-861F-8201B50D1F37}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5B18FD94-2904-4AA0-AD63-7231D59E63A2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\foxiecoreu.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09C02180-3B46-4CD8-83FF-34DAF442BDEF}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.FoxieSecurityModule.1\CLSID\ = "{C65185B1-D52B-44A9-861F-8201B50D1F37}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5B18FD94-2904-4AA0-AD63-7231D59E63A2}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72FC8424-86D6-4100-8846-FF211F275897}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{96EB9C1C-140F-44D8-8674-840B318B7E0B}\ = "IMTIEHttpFilter"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.FoxieSecurityModule.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C65185B1-D52B-44A9-861F-8201B50D1F37}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C65185B1-D52B-44A9-861F-8201B50D1F37}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.HttpFilter\CLSID\ = "{5B18FD94-2904-4AA0-AD63-7231D59E63A2}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.HttpFilter\CurVer\ = "Foxie.HttpFilter.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5B18FD94-2904-4AA0-AD63-7231D59E63A2}\VersionIndependentProgID\ = "Foxie.HttpFilter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{53B8B576-27EF-4CF5-AD81-0487F96BF21F}\1.0\ = "mtabie 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6DB1D8A4-3493-4414-9FD2-3924617491B5}\ = "IMTIEToolBar"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09C02180-3B46-4CD8-83FF-34DAF442BDEF}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.FoxieSecurityModule.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{96EB9C1C-140F-44D8-8674-840B318B7E0B}\ = "IMTIEHttpFilter"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C65185B1-D52B-44A9-861F-8201B50D1F37}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72FC8424-86D6-4100-8846-FF211F275897}\TypeLib\ = "{53B8B576-27EF-4CF5-AD81-0487F96BF21F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6DB1D8A4-3493-4414-9FD2-3924617491B5}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72FC8424-86D6-4100-8846-FF211F275897}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.HttpFilter\ = "HttpFilter Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.HttpFilter\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{96EB9C1C-140F-44D8-8674-840B318B7E0B}\TypeLib\ = "{53B8B576-27EF-4CF5-AD81-0487F96BF21F}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C65185B1-D52B-44A9-861F-8201B50D1F37}\ = "FoxieSecurityModule Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72FC8424-86D6-4100-8846-FF211F275897}\ = "IIMTIELauncher"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6DB1D8A4-3493-4414-9FD2-3924617491B5}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6DB1D8A4-3493-4414-9FD2-3924617491B5}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72FC8424-86D6-4100-8846-FF211F275897}\ = "IIMTIELauncher"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.FoxieCore\CurVer\ = "Foxie.FoxieCore.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{09C02180-3B46-4CD8-83FF-34DAF442BDEF}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5B18FD94-2904-4AA0-AD63-7231D59E63A2}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{53B8B576-27EF-4CF5-AD81-0487F96BF21F}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{96EB9C1C-140F-44D8-8674-840B318B7E0B}\TypeLib\ = "{53B8B576-27EF-4CF5-AD81-0487F96BF21F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Name-Space Handler\HTTP\*	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Foxie.FoxieCore.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72FC8424-86D6-4100-8846-FF211F275897}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 4876	4080	regsvr32.exe	82
PID 4080 wrote to memory of 4876	4080	regsvr32.exe	82
PID 4080 wrote to memory of 4876	4080	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\foxiecoreu.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\foxiecoreu.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:4876

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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