a22bbce47abfa62fb69a4223442b71ad5c71655c6ebae7cf531c0275fb3d9c06

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26-03-2024 20:09

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General

Target

dffe2b58bfe2b66e8804192b80b2c13c.dll
Size

239KB
MD5

dffe2b58bfe2b66e8804192b80b2c13c
SHA1

053d56fa7e942832e90d101dbfc061b70863ee41
SHA256

a22bbce47abfa62fb69a4223442b71ad5c71655c6ebae7cf531c0275fb3d9c06
SHA512

2e03ae3fffe689ab5f8014338c8e86645ff831c4171100a9fa76d55e08550390d313c4b13245d253076667bf87a59401b0531c0f34fce23836240b0570ca1daf
SSDEEP

3072:pVVWxbXM9La3lNlBhhwKIdzxBJdRN/3TEwlPA52Wdh4/CKmKZTtE/wU/Pgl9Jtmt:NW1MM3zhhXEFNfnWL0CkZJE/7PgojF

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\{B4BDBA8F-1F85-4619-82D7-DDC30FDFB81F}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B4BDBA8F-1F85-4619-82D7-DDC30FDFB81F}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B4BDBA8F-1F85-4619-82D7-DDC30FDFB81F}\ = "searchstar"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B4BDBA8F-1F85-4619-82D7-DDC30FDFB81F}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B4BDBA8F-1F85-4619-82D7-DDC30FDFB81F}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dffe2b58bfe2b66e8804192b80b2c13c.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B4BDBA8F-1F85-4619-82D7-DDC30FDFB81F}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B4BDBA8F-1F85-4619-82D7-DDC30FDFB81F}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 3016	2936	regsvr32.exe	28
PID 2936 wrote to memory of 3016	2936	regsvr32.exe	28
PID 2936 wrote to memory of 3016	2936	regsvr32.exe	28
PID 2936 wrote to memory of 3016	2936	regsvr32.exe	28
PID 2936 wrote to memory of 3016	2936	regsvr32.exe	28
PID 2936 wrote to memory of 3016	2936	regsvr32.exe	28
PID 2936 wrote to memory of 3016	2936	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dffe2b58bfe2b66e8804192b80b2c13c.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\dffe2b58bfe2b66e8804192b80b2c13c.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3016

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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