1726f6dfd07a97a658155abd6974ae16bc8c0cf71eeee4b669fd3f5db0de03d2

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/03/2024, 10:35

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General

Target

c868b0383ce552a03273e2c6c06499c8.dll
Size

159KB
MD5

c868b0383ce552a03273e2c6c06499c8
SHA1

1832561eaa1f88e3bc4af3ae6ebf6dd17ab4f0b0
SHA256

1726f6dfd07a97a658155abd6974ae16bc8c0cf71eeee4b669fd3f5db0de03d2
SHA512

a420d6d87cdbd7979a73003dddd2d0a6dce305b27c6a0d1d6aa49324a7ae6e23575656101d7887ab55ed099b2ef4b3b07a233fa3217b885c43d21427fbebcddc
SSDEEP

3072:HJuzhDjwnoqo6rKiF8rZt3IGQ5Bl+kyq5lGBMy4v5c:HJuzhDjUK88rHfQ5sq5UcG

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\{4fe4d904-172a-2c25-797c-0886dd7e2c7c} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\c868b0383ce552a03273e2c6c06499c8.dll\" DllStub"	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\{f5fd6c00-5c3e-58d2-f065-180bbf98674c}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{f5fd6c00-5c3e-58d2-f065-180bbf98674c}\NoExplorer = "\"\""	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f5fd6c00-5c3e-58d2-f065-180bbf98674c}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f5fd6c00-5c3e-58d2-f065-180bbf98674c}\ = "giantads browser enhancer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f5fd6c00-5c3e-58d2-f065-180bbf98674c}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f5fd6c00-5c3e-58d2-f065-180bbf98674c}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c868b0383ce552a03273e2c6c06499c8.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f5fd6c00-5c3e-58d2-f065-180bbf98674c}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2216	2152	regsvr32.exe	28
PID 2152 wrote to memory of 2216	2152	regsvr32.exe	28
PID 2152 wrote to memory of 2216	2152	regsvr32.exe	28
PID 2152 wrote to memory of 2216	2152	regsvr32.exe	28
PID 2152 wrote to memory of 2216	2152	regsvr32.exe	28
PID 2152 wrote to memory of 2216	2152	regsvr32.exe	28
PID 2152 wrote to memory of 2216	2152	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c868b0383ce552a03273e2c6c06499c8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\c868b0383ce552a03273e2c6c06499c8.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2216

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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