ddd0620c8bf72fccd2887174527672c75077375ace3f1ff0adba15d3724c8997

Analysis

max time kernel
140s
max time network
81s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 05:33

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General

Target

2a299535b0cdb27ca61fbde855cf5b0e.dll
Size

674KB
MD5

2a299535b0cdb27ca61fbde855cf5b0e
SHA1

3451bdc94d72aae2a200317f4d3d9c0d6a789ca9
SHA256

ddd0620c8bf72fccd2887174527672c75077375ace3f1ff0adba15d3724c8997
SHA512

d86140f68fb68cbbd6b690c56ab8eb547f145c46bd4b7f343b136e62249574f9ad2b7fbb6711ed29844d7be2829c79121b54421600c7ad48a5dc6a6ca872901f
SSDEEP

12288:0wO0UFmRHRdZ8VyQ+ONEbTB39tCN24Wl9/XTQwZAw/D9pjNDgk2tePm:0T0CmtvOEQ3IE24Q/XTQwZ9D9pjZgkA+

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\{CC01FC6C-4CC8-12F4-2F18-83355385AD82}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4CC8-12F4-2F18-83355385AD82}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4CC8-12F4-2F18-83355385AD82}\ = "brm inc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4CC8-12F4-2F18-83355385AD82}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2a299535b0cdb27ca61fbde855cf5b0e.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\2a299535b0cdb27ca61fbde855cf5b0e.brm inc\Clsid\ = "{CC01FC6C-4CC8-12F4-2F18-83355385AD82}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4CC8-12F4-2F18-83355385AD82}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4CC8-12F4-2F18-83355385AD82}\ProgID\ = "2a299535b0cdb27ca61fbde855cf5b0e.brm inc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4CC8-12F4-2F18-83355385AD82}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4CC8-12F4-2F18-83355385AD82}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\2a299535b0cdb27ca61fbde855cf5b0e.brm inc	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\2a299535b0cdb27ca61fbde855cf5b0e.brm inc\ = "brm inc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\2a299535b0cdb27ca61fbde855cf5b0e.brm inc\Clsid	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 1440	744	regsvr32.exe	63
PID 744 wrote to memory of 1440	744	regsvr32.exe	63
PID 744 wrote to memory of 1440	744	regsvr32.exe	63

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2a299535b0cdb27ca61fbde855cf5b0e.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:744
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\2a299535b0cdb27ca61fbde855cf5b0e.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1440

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

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Downloads

memory/1440-0-0x0000000002A00000-0x0000000002AAE000-memory.dmp

Filesize
696KB

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