cb693661a1b042947663ac716c7a785ec754cb0b7182dbd4e3657e9bc77a12f7

Analysis

max time kernel
149s
max time network
151s
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, 12:24

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General

Target

b4b05351c63b5218463b28ffb87cd125.dll
Size

288KB
MD5

b4b05351c63b5218463b28ffb87cd125
SHA1

c7d4a54d41e58a49da474fe2e1b8c6e5040c4b9d
SHA256

cb693661a1b042947663ac716c7a785ec754cb0b7182dbd4e3657e9bc77a12f7
SHA512

13ae2a6682dacfefaf6234e174014213fdb1da8bb25b9b9b09469a977f1595b01b461d9780acbc8ec64ccc2ef9b3f501b4da25ad6445e3dc4b826fba16648e23
SSDEEP

3072:A5/EKvLDaUnI5PGN6zt6MqV3xlF74EfgnGpG/pv3hLALRQKsLfaYtB2IGr0AlIT:Avmj5uYzt6b73sCgnmG/93hiRCykIFIT

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 3 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\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 51 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ = "IBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\ = "Browser Helper Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ = "Browser Helper Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-\ = "Browser Helper Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b4b05351c63b5218463b28ffb87cd125.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\main.DLL	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CLSID\ = "{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ProgID\ = "main.BHO.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b4b05351c63b5218463b28ffb87cd125.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\main.DLL\AppID = "U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\VersionIndependentProgID\ = "main.BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\ = "mainLib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\CLSID\ = "{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\ = "Browser Helper Object"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CurVer\ = "main.BHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\AppID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ = "IBHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3416 wrote to memory of 1088	3416	regsvr32.exe	89
PID 3416 wrote to memory of 1088	3416	regsvr32.exe	89
PID 3416 wrote to memory of 1088	3416	regsvr32.exe	89

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b4b05351c63b5218463b28ffb87cd125.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3416
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b4b05351c63b5218463b28ffb87cd125.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1088

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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