c2590547127fc32f5435eadf3e17cb23f8a3d579144025fd94149c13e0637452

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2024, 12:37

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General

Target

$_5_.dll
Size

356KB
MD5

7accdf78defcc6fbd31db53de740aa74
SHA1

0f5f1ac818fde9190e13ce0cfb015f42256d5ccd
SHA256

1cfa9761496b9769f493cb14c9f7307f047a4527632df525b04219ca30097843
SHA512

10790d2797b486f8bc5fa5199d9a097cefd644eda7afe8827f650b8e55def75b6053d74d95e60fec93d789bf57ea9283c90db97b6d9eb511cafc2d70db49d028
SSDEEP

6144:HCwTY1lbl1yyCBFz14U3PjDVNYnGrR+h+7ShZzTTBkTTRRa9M0RTgbpJRVdVa:HnE74Z11jvnrR+yWzTTeTTRRtWgra

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\{47ed36ad-a797-3081-b02e-2e5c555f5e28}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{47ed36ad-a797-3081-b02e-2e5c555f5e28}\NoExplorer = "\"\""	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{47ed36ad-a797-3081-b02e-2e5c555f5e28}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{47ed36ad-a797-3081-b02e-2e5c555f5e28}\ = "milehighads"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{47ed36ad-a797-3081-b02e-2e5c555f5e28}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{47ed36ad-a797-3081-b02e-2e5c555f5e28}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$_5_.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{47ed36ad-a797-3081-b02e-2e5c555f5e28}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 4640	4796	regsvr32.exe	88
PID 4796 wrote to memory of 4640	4796	regsvr32.exe	88
PID 4796 wrote to memory of 4640	4796	regsvr32.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$_5_.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$_5_.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4640

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

Windows 7 deprecation

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