75f26d4ea8d02ca36641851d90a1fcd6cec6da30ebaf1f9625ba7d21382155ef

Analysis

max time kernel
134s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 18:45

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General

Target

356e38f0ee3a90b159a1ce99d99bbd3c.dll
Size

99KB
MD5

356e38f0ee3a90b159a1ce99d99bbd3c
SHA1

d7eda76651c33855c7fd5c20e58850832185bd94
SHA256

75f26d4ea8d02ca36641851d90a1fcd6cec6da30ebaf1f9625ba7d21382155ef
SHA512

4b2b732954572a8e4f53741e53d7e81c7e1c4bfc88b0d105dc2582883e1e8d8ff073f58dbcb5f15aa89fd89d891ae0b5dfac7fb4c12155944a8a698efe4b9acc
SSDEEP

1536:g2VPt/KTe5wGG1JJyhGkP7mOyD0rvHQd+fME0Ub9sY6DDiHD6oPscfSNy3004EA2:gq5wuBDmVAvwphUf8D8UcaNyEMJJ

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\{B1D147E7-873E-4909-8127-695D9BB78728}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B1D147E7-873E-4909-8127-695D9BB78728}\ = "DownloadBHO T2BHO"	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}\1.0\ = "DownloadBHO 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO\CurVer\ = "DownloadBHO.T2BHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO\ = "T2BHO Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO.1\ = "T2BHO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO\CLSID\ = "{B1D147E7-873E-4909-8127-695D9BB78728}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\VersionIndependentProgID\ = "DownloadBHO.T2BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\356e38f0ee3a90b159a1ce99d99bbd3c.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\356e38f0ee3a90b159a1ce99d99bbd3c.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\ = "T2BHO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\ProgID\ = "DownloadBHO.T2BHO.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\TypeLib\ = "{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\TypeLib\ = "{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\ = "IT2BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO.1\CLSID\ = "{B1D147E7-873E-4909-8127-695D9BB78728}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownloadBHO.T2BHO	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B1D147E7-873E-4909-8127-695D9BB78728}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\ = "IT2BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{691CC615-CD3F-41FF-920D-60769D3DCF5B}\TypeLib\ = "{E35306D7-B44C-4530-A2CE-94C60F8CC4DC}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3696 wrote to memory of 4544	3696	regsvr32.exe	87
PID 3696 wrote to memory of 4544	3696	regsvr32.exe	87
PID 3696 wrote to memory of 4544	3696	regsvr32.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\356e38f0ee3a90b159a1ce99d99bbd3c.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3696
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\356e38f0ee3a90b159a1ce99d99bbd3c.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4544

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/4544-0-0x0000000010000000-0x0000000010059000-memory.dmp

Filesize
356KB

Download
memory/4544-1-0x0000000000E10000-0x0000000000E11000-memory.dmp

Filesize
4KB

Download
memory/4544-2-0x0000000010000000-0x0000000010059000-memory.dmp

Filesize
356KB

Download