08956ecb861feeae3d61059bf2b72fa589ae01030bf3587edac7d3affa340590

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 01:48

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General

Target

8a97591c2f062c66786fc7636e51bdfe.dll
Size

157KB
MD5

8a97591c2f062c66786fc7636e51bdfe
SHA1

6a5171b7b3c5e6dcaca72204e346a56c5103ab87
SHA256

08956ecb861feeae3d61059bf2b72fa589ae01030bf3587edac7d3affa340590
SHA512

f19539ccec115b937ef6365856f098d023c9a9e72c970f56740d191ba0f1ef6d4f8ca89e649e8e530948732aa625bb153af2acaa57c58e4ef188a8e3de4342ab
SSDEEP

3072:iVjFPn4kJ68OgPi250D5HCF1PMKFFDgpe+ixy4v5lqk:ifPn7yqi2s5NKFpT7nqk

Score

6^/10

adware persistence stealer

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\{dc7e4b13-46dd-3d57-d417-79365ceb8f89} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\8a97591c2f062c66786fc7636e51bdfe.dll\" DllStart"	regsvr32.exe

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\{ee2f75b1-7be4-7e6c-5f3b-093382d0cadf}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{ee2f75b1-7be4-7e6c-5f3b-093382d0cadf}\NoExplorer = "\"\""	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ee2f75b1-7be4-7e6c-5f3b-093382d0cadf}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ee2f75b1-7be4-7e6c-5f3b-093382d0cadf}\ = "radbanner browser enhancer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ee2f75b1-7be4-7e6c-5f3b-093382d0cadf}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ee2f75b1-7be4-7e6c-5f3b-093382d0cadf}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8a97591c2f062c66786fc7636e51bdfe.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ee2f75b1-7be4-7e6c-5f3b-093382d0cadf}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2684	2668	regsvr32.exe	28
PID 2668 wrote to memory of 2684	2668	regsvr32.exe	28
PID 2668 wrote to memory of 2684	2668	regsvr32.exe	28
PID 2668 wrote to memory of 2684	2668	regsvr32.exe	28
PID 2668 wrote to memory of 2684	2668	regsvr32.exe	28
PID 2668 wrote to memory of 2684	2668	regsvr32.exe	28
PID 2668 wrote to memory of 2684	2668	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8a97591c2f062c66786fc7636e51bdfe.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8a97591c2f062c66786fc7636e51bdfe.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads