Malware Analysis Report

2025-04-14 03:15

Sample ID 240612-y37y1ssenj
Target Anvil_Loader_v2.4 (2).zip
SHA256 ef4fa6e8e8626f00d18bec121b63cd98d87a2cde69ec8ca5da67af5921aebb88
Tags
score
3/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral12

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral7

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral11

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral8

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral9

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral10

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
3/10

SHA256

ef4fa6e8e8626f00d18bec121b63cd98d87a2cde69ec8ca5da67af5921aebb88

Threat Level: Likely benign

The file Anvil_Loader_v2.4 (2).zip was found to be: Likely benign.

Malicious Activity Summary


Unsigned PE

Suspicious use of WriteProcessMemory

Modifies registry class

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-12 20:19

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral12

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win11-20240611-en

Max time kernel

1s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\v2.4\symsrv.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2316 wrote to memory of 1844 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 1844 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2316 wrote to memory of 1844 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\v2.4\symsrv.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\v2.4\symsrv.dll,#1

Network

N/A

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win11-20240508-en

Max time kernel

0s

Command Line

C:\Windows\Explorer.exe /idlist,,"C:\Users\Admin\AppData\Local\Temp\Anvil_Loader_v2.4 (2).zip"

Signatures

N/A

Processes

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,"C:\Users\Admin\AppData\Local\Temp\Anvil_Loader_v2.4 (2).zip"

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win10-20240404-en

Max time kernel

23s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\v2.4\Anvil Loader.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\v2.4\Anvil Loader.exe

"C:\Users\Admin\AppData\Local\Temp\v2.4\Anvil Loader.exe"

Network

N/A

Files

memory/5080-0-0x00000000013C0000-0x00000000021F9000-memory.dmp

memory/5080-1-0x00000000013C0000-0x00000000021F9000-memory.dmp

Analysis: behavioral5

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

53s

Command Line

"C:\Users\Admin\AppData\Local\Temp\v2.4\Anvil Loader.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\v2.4\Anvil Loader.exe

"C:\Users\Admin\AppData\Local\Temp\v2.4\Anvil Loader.exe"

Network

Files

memory/2596-0-0x0000000000850000-0x0000000001689000-memory.dmp

memory/2596-1-0x0000000000850000-0x0000000001689000-memory.dmp

Analysis: behavioral6

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win11-20240508-en

Max time kernel

24s

Command Line

"C:\Users\Admin\AppData\Local\Temp\v2.4\Anvil Loader.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\v2.4\Anvil Loader.exe

"C:\Users\Admin\AppData\Local\Temp\v2.4\Anvil Loader.exe"

Network

N/A

Files

memory/1056-0-0x00000000005A0000-0x00000000013D9000-memory.dmp

memory/1056-1-0x00000000005A0000-0x00000000013D9000-memory.dmp

Analysis: behavioral7

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win10-20240404-en

Max time kernel

15s

Max time network

17s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\v2.4\msdia140.dll

Signatures

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000_Classes\WOW6432Node\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\ = "Debug Information Accessor" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32\ThreadingModel = "Both" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\ = "Generic StackWalker" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\ = "Debug Information Accessor w/o Global Memory Usage" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32\ThreadingModel = "Both" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32\ThreadingModel = "Both" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\ = "dia 2.0 Type Library" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS\ = "0" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32 C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 168 wrote to memory of 4684 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 168 wrote to memory of 4684 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 168 wrote to memory of 4684 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\v2.4\msdia140.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\v2.4\msdia140.dll

Network

N/A

Files

N/A

Analysis: behavioral11

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

52s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\v2.4\symsrv.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3388 wrote to memory of 2892 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3388 wrote to memory of 2892 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3388 wrote to memory of 2892 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\v2.4\symsrv.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\v2.4\symsrv.dll,#1

Network

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win10-20240404-en

Max time kernel

15s

Max time network

17s

Command Line

C:\Windows\Explorer.exe /idlist,,"C:\Users\Admin\AppData\Local\Temp\Anvil_Loader_v2.4 (2).zip"

Signatures

N/A

Processes

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,"C:\Users\Admin\AppData\Local\Temp\Anvil_Loader_v2.4 (2).zip"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

53s

Command Line

C:\Windows\Explorer.exe /idlist,,"C:\Users\Admin\AppData\Local\Temp\Anvil_Loader_v2.4 (2).zip"

Signatures

N/A

Processes

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,"C:\Users\Admin\AppData\Local\Temp\Anvil_Loader_v2.4 (2).zip"

Network

Files

N/A

Analysis: behavioral8

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win10v2004-20240611-en

Max time kernel

33s

Max time network

35s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\v2.4\msdia140.dll

Signatures

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\ = "dia 2.0 Type Library" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32\ThreadingModel = "Both" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000_Classes\WOW6432Node\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\ = "Debug Information Accessor" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\ = "Debug Information Accessor w/o Global Memory Usage" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\ = "Generic StackWalker" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32\ThreadingModel = "Both" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS\ = "0" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32\ThreadingModel = "Both" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3936 wrote to memory of 1632 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3936 wrote to memory of 1632 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3936 wrote to memory of 1632 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\v2.4\msdia140.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\v2.4\msdia140.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral9

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win11-20240508-en

Max time kernel

0s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\v2.4\msdia140.dll

Signatures

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\ = "Generic StackWalker" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\ = "dia 2.0 Type Library" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32\ThreadingModel = "Both" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32\ThreadingModel = "Both" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\ = "Debug Information Accessor w/o Global Memory Usage" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS\ = "0" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000_Classes\WOW6432Node\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32\ThreadingModel = "Both" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v2.4\\msdia140.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\ = "Debug Information Accessor" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC} C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1020 wrote to memory of 4256 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1020 wrote to memory of 4256 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1020 wrote to memory of 4256 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\v2.4\msdia140.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\v2.4\msdia140.dll

Network

N/A

Files

N/A

Analysis: behavioral10

Detonation Overview

Submitted

2024-06-12 20:19

Reported

2024-06-12 20:21

Platform

win10-20240404-en

Max time kernel

15s

Max time network

18s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\v2.4\symsrv.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 204 wrote to memory of 812 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 204 wrote to memory of 812 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 204 wrote to memory of 812 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\v2.4\symsrv.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\v2.4\symsrv.dll,#1

Network

N/A

Files

N/A