f27c58d09ef04fe1c0cea8c70f4b5b8e52cfd4c25a5cd799518cddcacba37fea

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 06:46

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General

Target

2c23d41d916e206f8e9fbc2ce5951009.dll
Size

89KB
MD5

2c23d41d916e206f8e9fbc2ce5951009
SHA1

12e0826cea225cda11a4bf244fd10f523f49de57
SHA256

f27c58d09ef04fe1c0cea8c70f4b5b8e52cfd4c25a5cd799518cddcacba37fea
SHA512

5a7b736271527edb6e5997aa62ea61d49b857868e2dca786a7000c9851ca139d7db0792261b690ad083b958448ce36200f13d1acc13374df1bdffabf07237d47
SSDEEP

1536:A6c2bcATlbcKNyRAOj2gL+Tisif9TRvuDRVHXh/Z4IpyGZUsVW5umYTG6Jq/Mpgq:AkI0tvwj7L+T5ivuDRVHR/ZZywfVkumY

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\{C33AE885-3EF8-41D8-9953-4151938FC721}	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C33AE885-3EF8-41D8-9953-4151938FC721}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2c23d41d916e206f8e9fbc2ce5951009.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C33AE885-3EF8-41D8-9953-4151938FC721}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C33AE885-3EF8-41D8-9953-4151938FC721}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C33AE885-3EF8-41D8-9953-4151938FC721}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2184	1712	regsvr32.exe	16
PID 1712 wrote to memory of 2184	1712	regsvr32.exe	16
PID 1712 wrote to memory of 2184	1712	regsvr32.exe	16
PID 1712 wrote to memory of 2184	1712	regsvr32.exe	16
PID 1712 wrote to memory of 2184	1712	regsvr32.exe	16
PID 1712 wrote to memory of 2184	1712	regsvr32.exe	16
PID 1712 wrote to memory of 2184	1712	regsvr32.exe	16

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2c23d41d916e206f8e9fbc2ce5951009.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\2c23d41d916e206f8e9fbc2ce5951009.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2184

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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