00a9864daafe1372f941830afe78c445d92073ce01deb2c9bcf6326925a646f8

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/02/2024, 11:44

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General

Target

a3b2fe3e733e05a5608318976ce0465d.dll
Size

36KB
MD5

a3b2fe3e733e05a5608318976ce0465d
SHA1

85eb5bdeca3d79ae7c600ed7a9f1c413204ac33d
SHA256

00a9864daafe1372f941830afe78c445d92073ce01deb2c9bcf6326925a646f8
SHA512

81e12a1b2ee20585c8da0ee1342b96476ec6ca88443d06e8277f92e87fa3a56ad46506527e05765d29c59d7da1189cd496b02c3ac2e227143147c2022757d104
SSDEEP

768:YGDUli1neXPiBuicGcmHGvx1J+8FoJhZVqKagsxolMqAr1Bb5:YG+iUPau3xvNmJhaxDqAB

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2604-0-0x0000000010000000-0x000000001005B000-memory.dmp	upx

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\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}	regsvr32.exe

Modifies registry class 60 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp\ = "BhoApp Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\TypeLib\ = "{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp\CLSID\ = "{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\ = "_IBhoAppEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\ = "IBhoApp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\VersionIndependentProgID\ = "MSApp.BhoApp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3b2fe3e733e05a5608318976ce0465d.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\TypeLib\ = "{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\ = "IBhoApp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\ProgID\ = "MSApp.BhoApp.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\ = "_IBhoAppEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp.1\CLSID\ = "{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\TypeLib\ = "{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\ = "BhoApp Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\TypeLib\ = "{DC8305B3-1EE7-4d58-83EF-2C5BC6C6566C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}\1.0\ = "MSApp 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp\CurVer\ = "MSApp.BhoApp.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSApp.BhoApp.1\ = "BhoApp Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}\TypeLib\ = "{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3b2fe3e733e05a5608318976ce0465d.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAD1C6AD-10AB-4cae-97FB-0AADDEC8A14B}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F3619035-750E-4A0A-8FB2-31D5C4BDC2D4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CCF3B40-253E-4D22-A790-C2A25DE3F25B}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DC8305B3-1EE7-4D58-83EF-2C5BC6C6566C}\1.0\0	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2604	2140	regsvr32.exe	28
PID 2140 wrote to memory of 2604	2140	regsvr32.exe	28
PID 2140 wrote to memory of 2604	2140	regsvr32.exe	28
PID 2140 wrote to memory of 2604	2140	regsvr32.exe	28
PID 2140 wrote to memory of 2604	2140	regsvr32.exe	28
PID 2140 wrote to memory of 2604	2140	regsvr32.exe	28
PID 2140 wrote to memory of 2604	2140	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a3b2fe3e733e05a5608318976ce0465d.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\a3b2fe3e733e05a5608318976ce0465d.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2604

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

Replay Monitor

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Downloads

memory/2604-0-0x0000000010000000-0x000000001005B000-memory.dmp

Filesize
364KB

Download