e1d9389b928feb111ec712e0b704f594c1e7f2347688b34ee7060b093d89133e

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
15/02/2024, 02:56

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General

Target
99fcc70217472e5db8f9c05ce9369ba8.dll
Size 596KB
Sample240215-de471afe96
SHA256 e1d9389b928feb111ec712e0b704f594c1e7f2347688b34ee7060b093d89133e
MD5 99fcc70217472e5db8f9c05ce9369ba8
SHA1 30dc15e793c75334e95d473728bd5ab0afe2791f
SHA512 15649c372eff9d438ee78171519cdd72e7c5fc1f3a1f63e26c3bb924e894797949fcd14a6a32fbd6c593a48a6faa23bed0dfcf29eb0715d66ecfaefdfe53ee3e
SSDEEP 12288:csukklWIbKdQRJbQlbqWya5cs3NQqGKv1NlBk6l4:cvkSWh+OlPya59QqGiNk
MD5 SHA1 SHA512 SSDEEP

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-613A-1B88-54F1-6CC28DF38481}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-613A-1B88-54F1-6CC28DF38481}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\99fcc70217472e5db8f9c05ce9369ba8.sh	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\99fcc70217472e5db8f9c05ce9369ba8.sh\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\99fcc70217472e5db8f9c05ce9369ba8.sh\Clsid\ = "{CC01FC6C-613A-1B88-54F1-6CC28DF38481}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-613A-1B88-54F1-6CC28DF38481}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-613A-1B88-54F1-6CC28DF38481}\ProgID\ = "99fcc70217472e5db8f9c05ce9369ba8.sh"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-613A-1B88-54F1-6CC28DF38481}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-613A-1B88-54F1-6CC28DF38481}\ = "sh"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-613A-1B88-54F1-6CC28DF38481}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\99fcc70217472e5db8f9c05ce9369ba8.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-613A-1B88-54F1-6CC28DF38481}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\99fcc70217472e5db8f9c05ce9369ba8.sh\ = "sh"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 2196	1072	regsvr32.exe	28
PID 1072 wrote to memory of 2196	1072	regsvr32.exe	28
PID 1072 wrote to memory of 2196	1072	regsvr32.exe	28
PID 1072 wrote to memory of 2196	1072	regsvr32.exe	28
PID 1072 wrote to memory of 2196	1072	regsvr32.exe	28
PID 1072 wrote to memory of 2196	1072	regsvr32.exe	28
PID 1072 wrote to memory of 2196	1072	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\99fcc70217472e5db8f9c05ce9369ba8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\99fcc70217472e5db8f9c05ce9369ba8.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2196

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/2196-0-0x00000000002C0000-0x000000000035B000-memory.dmp

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