c2eb2e38fa30d47999204440d0f2c2053e7455d0fe7ae8246c1e30b260c70711

Analysis

max time kernel
149s
max time network
151s
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, 01:49

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General

Target
dcf1b9bb7f463618e75b7e1f66ebf99e.dll
Size 565KB
Sample240325-b812bscf99
SHA256 c2eb2e38fa30d47999204440d0f2c2053e7455d0fe7ae8246c1e30b260c70711
MD5 dcf1b9bb7f463618e75b7e1f66ebf99e
SHA1 e7edff07a9d0a3f6d5e29b8b38c5197523095a7d
SHA512 c602a317107f328dea5d93b2831f6f48426f0bdf38c9d54db64f8f3d1e84678849ffddc02d4d4c807c77bcc4004d870e9c7dd1d22df5276270b8d1cbc35ae46a
SSDEEP 12288:tyA1ZdqVfv/6HftOIA3+00wstpSdCi3TLdLOGFa+bsAVajlSiVBwk:d1fqZCHwIr00taCiHpRa+bsA8joi
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-EB17-2FC5-3E77-D6A8BA9A5FFE}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-EB17-2FC5-3E77-D6A8BA9A5FFE}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-EB17-2FC5-3E77-D6A8BA9A5FFE}\ = "xx"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-EB17-2FC5-3E77-D6A8BA9A5FFE}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-EB17-2FC5-3E77-D6A8BA9A5FFE}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dcf1b9bb7f463618e75b7e1f66ebf99e.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-EB17-2FC5-3E77-D6A8BA9A5FFE}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\dcf1b9bb7f463618e75b7e1f66ebf99e.xx\ = "xx"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-EB17-2FC5-3E77-D6A8BA9A5FFE}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\dcf1b9bb7f463618e75b7e1f66ebf99e.xx	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\dcf1b9bb7f463618e75b7e1f66ebf99e.xx\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\dcf1b9bb7f463618e75b7e1f66ebf99e.xx\Clsid\ = "{CC01FC6C-EB17-2FC5-3E77-D6A8BA9A5FFE}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-EB17-2FC5-3E77-D6A8BA9A5FFE}\ProgID\ = "dcf1b9bb7f463618e75b7e1f66ebf99e.xx"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2940	2336	regsvr32.exe	88
PID 2336 wrote to memory of 2940	2336	regsvr32.exe	88
PID 2336 wrote to memory of 2940	2336	regsvr32.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dcf1b9bb7f463618e75b7e1f66ebf99e.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\dcf1b9bb7f463618e75b7e1f66ebf99e.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2940

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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