5a2421a99391c5deb961e8f6dbbb5a660531192c2fa279061d6d637bb9656947

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-10-2024 05:43

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General

Target

$R1.dll
Size

2.5MB
MD5

81dd5db35b7311d7e86ad64bb21946c0
SHA1

936997fb386f9d482715dd5747cace7ce94fcdea
SHA256

0b87c091f55d456fcf375cfd93cdd4fac981537c53fe06bba20db4d37f624aa2
SHA512

014f93810a96d99b7b3710366acdd8c869c152940bcfd4b6764ec12a69dd36d874bcac544f62279dd35054cd21c99cdc90dd00c74153be23f5e39100f19958d7
SSDEEP

49152:2dAxOl1nCLGGFAdbKOzMMP0DIH8K6c346mTztFIFmxW1d:iAxyCLxIZl0DIH8K6citF

Score

6^/10

adware discovery 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\{5bcb5707-7e58-b7ee-88f4-8ddd6b2dd4c5}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{5bcb5707-7e58-b7ee-88f4-8ddd6b2dd4c5}\NoExplorer = "0"	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5bcb5707-7e58-b7ee-88f4-8ddd6b2dd4c5}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5bcb5707-7e58-b7ee-88f4-8ddd6b2dd4c5}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$R1.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5bcb5707-7e58-b7ee-88f4-8ddd6b2dd4c5}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5bcb5707-7e58-b7ee-88f4-8ddd6b2dd4c5}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5bcb5707-7e58-b7ee-88f4-8ddd6b2dd4c5}\ = "yourprofitclub"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2856	2792	regsvr32.exe	28
PID 2792 wrote to memory of 2856	2792	regsvr32.exe	28
PID 2792 wrote to memory of 2856	2792	regsvr32.exe	28
PID 2792 wrote to memory of 2856	2792	regsvr32.exe	28
PID 2792 wrote to memory of 2856	2792	regsvr32.exe	28
PID 2792 wrote to memory of 2856	2792	regsvr32.exe	28
PID 2792 wrote to memory of 2856	2792	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$R1.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$R1.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2856

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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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