Malware Analysis Report

2024-09-09 20:19

Sample ID 240613-1xr2qasanc
Target 3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6
SHA256 3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6
Tags
evasion persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6

Threat Level: Known bad

The file 3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6 was found to be: Known bad.

Malicious Activity Summary

evasion persistence

Modifies WinLogon for persistence

Modifies visiblity of hidden/system files in Explorer

Modifies Installed Components in the registry

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-13 22:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 22:02

Reported

2024-06-13 22:04

Platform

win7-20240221-en

Max time kernel

150s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" \??\c:\windows\system\explorer.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" \??\c:\windows\system\svchost.exe N/A

Modifies visiblity of hidden/system files in Explorer

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" \??\c:\windows\system\svchost.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" \??\c:\windows\system\explorer.exe N/A

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} \??\c:\windows\system\svchost.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} \??\c:\windows\system\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" \??\c:\windows\system\svchost.exe N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} \??\c:\windows\system\svchost.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} \??\c:\windows\system\explorer.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" \??\c:\windows\system\explorer.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} \??\c:\windows\system\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" \??\c:\windows\system\svchost.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\spoolsv.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\spoolsv.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" \??\c:\windows\system\explorer.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" \??\c:\windows\system\explorer.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" \??\c:\windows\system\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" \??\c:\windows\system\svchost.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification \??\c:\windows\system\explorer.exe C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe N/A
File opened for modification \??\c:\windows\system\spoolsv.exe \??\c:\windows\system\explorer.exe N/A
File opened for modification \??\c:\windows\system\svchost.exe \??\c:\windows\system\spoolsv.exe N/A
File opened for modification \??\c:\windows\system\explorer.exe \??\c:\windows\system\explorer.exe N/A
File opened for modification \??\c:\windows\system\svchost.exe \??\c:\windows\system\svchost.exe N/A
File opened for modification C:\Windows\system\udsys.exe \??\c:\windows\system\explorer.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1912 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe \??\c:\windows\system\explorer.exe
PID 1912 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe \??\c:\windows\system\explorer.exe
PID 1912 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe \??\c:\windows\system\explorer.exe
PID 1912 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe \??\c:\windows\system\explorer.exe
PID 2504 wrote to memory of 2372 N/A \??\c:\windows\system\explorer.exe \??\c:\windows\system\spoolsv.exe
PID 2504 wrote to memory of 2372 N/A \??\c:\windows\system\explorer.exe \??\c:\windows\system\spoolsv.exe
PID 2504 wrote to memory of 2372 N/A \??\c:\windows\system\explorer.exe \??\c:\windows\system\spoolsv.exe
PID 2504 wrote to memory of 2372 N/A \??\c:\windows\system\explorer.exe \??\c:\windows\system\spoolsv.exe
PID 2372 wrote to memory of 1940 N/A \??\c:\windows\system\spoolsv.exe \??\c:\windows\system\svchost.exe
PID 2372 wrote to memory of 1940 N/A \??\c:\windows\system\spoolsv.exe \??\c:\windows\system\svchost.exe
PID 2372 wrote to memory of 1940 N/A \??\c:\windows\system\spoolsv.exe \??\c:\windows\system\svchost.exe
PID 2372 wrote to memory of 1940 N/A \??\c:\windows\system\spoolsv.exe \??\c:\windows\system\svchost.exe
PID 1940 wrote to memory of 2804 N/A \??\c:\windows\system\svchost.exe \??\c:\windows\system\spoolsv.exe
PID 1940 wrote to memory of 2804 N/A \??\c:\windows\system\svchost.exe \??\c:\windows\system\spoolsv.exe
PID 1940 wrote to memory of 2804 N/A \??\c:\windows\system\svchost.exe \??\c:\windows\system\spoolsv.exe
PID 1940 wrote to memory of 2804 N/A \??\c:\windows\system\svchost.exe \??\c:\windows\system\spoolsv.exe
PID 1940 wrote to memory of 2340 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 2340 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 2340 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 2340 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 1692 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 1692 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 1692 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 1692 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 960 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 960 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 960 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 1940 wrote to memory of 960 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe

"C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe"

\??\c:\windows\system\explorer.exe

c:\windows\system\explorer.exe

\??\c:\windows\system\spoolsv.exe

c:\windows\system\spoolsv.exe SE

\??\c:\windows\system\svchost.exe

c:\windows\system\svchost.exe

\??\c:\windows\system\spoolsv.exe

c:\windows\system\spoolsv.exe PR

C:\Windows\SysWOW64\at.exe

at 22:04 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe

C:\Windows\SysWOW64\at.exe

at 22:05 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe

C:\Windows\SysWOW64\at.exe

at 22:06 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe

Network

N/A

Files

memory/1912-0-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1912-1-0x0000000000020000-0x0000000000024000-memory.dmp

memory/1912-4-0x0000000000401000-0x000000000042E000-memory.dmp

memory/1912-3-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1912-2-0x0000000072940000-0x0000000072A93000-memory.dmp

\Windows\system\explorer.exe

MD5 6b055b78a8798dc0ad6a48e71950cf3c
SHA1 4c5abd7c36226ac6603596b5e105ace6d64df96f
SHA256 a8d6ab07cbb14f6c22a22fa710be7d263c8d2749e9bb975f2748883b5361a205
SHA512 4483a121d8a1b3d4fbcc138a6b7acdc91a6a170925292440391dfd7f434aa5197bf4e571494b12751f558b1959f026a0a555a5002e82c3785f4d7c7f2661903e

memory/1912-16-0x0000000002C90000-0x0000000002CC1000-memory.dmp

memory/2504-18-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2504-19-0x0000000072940000-0x0000000072A93000-memory.dmp

memory/2504-21-0x0000000000400000-0x0000000000431000-memory.dmp

\Windows\system\spoolsv.exe

MD5 5da64f42a4646c6d1d7f057a74b8cb98
SHA1 fa9a72111b010387f19b6cb8e6a67febb0d10977
SHA256 1f6b18de15b273dd5e532c8f446d32fe1f55361e3d98dbbcf2eb51b48cbf1819
SHA512 9f53c457e91afc41fb55be8863e4a40d180bba7c534838576d963ead829c4b2f5d9bcdc28044e1a6a599909e8d89e59cbf9084bdb17532dd74bbbb7eead1092b

memory/2504-34-0x00000000025F0000-0x0000000002621000-memory.dmp

memory/2504-35-0x00000000025F0000-0x0000000002621000-memory.dmp

memory/2372-37-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2372-38-0x0000000072940000-0x0000000072A93000-memory.dmp

memory/2372-42-0x0000000000400000-0x0000000000431000-memory.dmp

\Windows\system\svchost.exe

MD5 841e1e37a0852ec6bcb77b5322fcb376
SHA1 c84bf4d781f9dc49dfbd7b89ddc87f85e67f8f15
SHA256 eb73463d468ddfef67f82a3d0315f702f54834b6be42a7a2e698f583ac41e7f1
SHA512 d4fe0f7944cd2a91f89882100b35e9881d1019b3aedf02059001b8569b770361fc0ebf94a53f1e26d4f24ca678b2f9d02c7e955bda848d98dbd19fb37c5cd7d2

memory/1912-52-0x0000000000020000-0x0000000000024000-memory.dmp

memory/2372-54-0x0000000002600000-0x0000000002631000-memory.dmp

memory/1912-56-0x0000000000401000-0x000000000042E000-memory.dmp

memory/1940-57-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1940-62-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1940-58-0x0000000072940000-0x0000000072A93000-memory.dmp

memory/2504-68-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2804-69-0x0000000072940000-0x0000000072A93000-memory.dmp

memory/2804-74-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1912-79-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1912-80-0x0000000000401000-0x000000000042E000-memory.dmp

C:\Users\Admin\AppData\Roaming\mrsys.exe

MD5 16984d695ec7e4d505916b05a486ba00
SHA1 3048ee3ece424f7d33397e82933a59f251e289bf
SHA256 00b580b6617cf53ea29e425cda76d02c2cce5c0a76dd49c31c1cce654d5c8e15
SHA512 0a84a18a6679731388cb48b31b808ccac15dcad9bbf89e1d565e02669d3dff72719239edb8faf7cebe88cbc6380111bcffb7fb683802eb58c851891cf5dcae6f

memory/1940-83-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2504-82-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2504-92-0x0000000000400000-0x0000000000431000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 22:02

Reported

2024-06-13 22:04

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" \??\c:\windows\system\explorer.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" \??\c:\windows\system\svchost.exe N/A

Modifies visiblity of hidden/system files in Explorer

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" \??\c:\windows\system\explorer.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" \??\c:\windows\system\svchost.exe N/A

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} \??\c:\windows\system\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" \??\c:\windows\system\svchost.exe N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} \??\c:\windows\system\svchost.exe N/A
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} \??\c:\windows\system\explorer.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" \??\c:\windows\system\explorer.exe N/A
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} \??\c:\windows\system\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" \??\c:\windows\system\svchost.exe N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} \??\c:\windows\system\svchost.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\spoolsv.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\spoolsv.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" \??\c:\windows\system\explorer.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" \??\c:\windows\system\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" \??\c:\windows\system\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" \??\c:\windows\system\explorer.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification \??\c:\windows\system\explorer.exe C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe N/A
File opened for modification \??\c:\windows\system\spoolsv.exe \??\c:\windows\system\explorer.exe N/A
File opened for modification \??\c:\windows\system\svchost.exe \??\c:\windows\system\spoolsv.exe N/A
File opened for modification \??\c:\windows\system\explorer.exe \??\c:\windows\system\explorer.exe N/A
File opened for modification \??\c:\windows\system\svchost.exe \??\c:\windows\system\svchost.exe N/A
File opened for modification C:\Windows\system\udsys.exe \??\c:\windows\system\explorer.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A \??\c:\windows\system\explorer.exe N/A
N/A N/A \??\c:\windows\system\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 776 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe \??\c:\windows\system\explorer.exe
PID 776 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe \??\c:\windows\system\explorer.exe
PID 776 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe \??\c:\windows\system\explorer.exe
PID 1148 wrote to memory of 3708 N/A \??\c:\windows\system\explorer.exe \??\c:\windows\system\spoolsv.exe
PID 1148 wrote to memory of 3708 N/A \??\c:\windows\system\explorer.exe \??\c:\windows\system\spoolsv.exe
PID 1148 wrote to memory of 3708 N/A \??\c:\windows\system\explorer.exe \??\c:\windows\system\spoolsv.exe
PID 3708 wrote to memory of 4796 N/A \??\c:\windows\system\spoolsv.exe \??\c:\windows\system\svchost.exe
PID 3708 wrote to memory of 4796 N/A \??\c:\windows\system\spoolsv.exe \??\c:\windows\system\svchost.exe
PID 3708 wrote to memory of 4796 N/A \??\c:\windows\system\spoolsv.exe \??\c:\windows\system\svchost.exe
PID 4796 wrote to memory of 3336 N/A \??\c:\windows\system\svchost.exe \??\c:\windows\system\spoolsv.exe
PID 4796 wrote to memory of 3336 N/A \??\c:\windows\system\svchost.exe \??\c:\windows\system\spoolsv.exe
PID 4796 wrote to memory of 3336 N/A \??\c:\windows\system\svchost.exe \??\c:\windows\system\spoolsv.exe
PID 4796 wrote to memory of 3692 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 4796 wrote to memory of 3692 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 4796 wrote to memory of 3692 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 4796 wrote to memory of 3768 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 4796 wrote to memory of 3768 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 4796 wrote to memory of 3768 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 4796 wrote to memory of 3904 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 4796 wrote to memory of 3904 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe
PID 4796 wrote to memory of 3904 N/A \??\c:\windows\system\svchost.exe C:\Windows\SysWOW64\at.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe

"C:\Users\Admin\AppData\Local\Temp\3fc8084e724f10c0b6f94416c18032a2e1a6ebcb3021d76e9b9c655301d01bb6.exe"

\??\c:\windows\system\explorer.exe

c:\windows\system\explorer.exe

\??\c:\windows\system\spoolsv.exe

c:\windows\system\spoolsv.exe SE

\??\c:\windows\system\svchost.exe

c:\windows\system\svchost.exe

\??\c:\windows\system\spoolsv.exe

c:\windows\system\spoolsv.exe PR

C:\Windows\SysWOW64\at.exe

at 22:04 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe

C:\Windows\SysWOW64\at.exe

at 22:05 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe

C:\Windows\SysWOW64\at.exe

at 22:06 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe

Network

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

Files

memory/776-0-0x0000000000400000-0x0000000000431000-memory.dmp

memory/776-1-0x00000000001C0000-0x00000000001C4000-memory.dmp

memory/776-3-0x0000000000400000-0x0000000000431000-memory.dmp

memory/776-2-0x00000000750B0000-0x000000007520D000-memory.dmp

memory/776-5-0x0000000000401000-0x000000000042E000-memory.dmp

C:\Windows\System\explorer.exe

MD5 bf76efcb7bbcd3ff384fc1ed610518d7
SHA1 4508afa56589e927d620ba693e0794304387b5bb
SHA256 502efb2a63915d795e598624b2e5273903fe490af83bb787078ce7d3edb185e4
SHA512 f3b17b2009a47a8aa505a7e18767aa994e089bdc130c563b38538be2c84bb26dfab79617ae51ec583010b96663ba7106e4b707adcbdd897a3e3de20006be6b28

memory/1148-15-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1148-13-0x00000000750B0000-0x000000007520D000-memory.dmp

C:\Windows\System\spoolsv.exe

MD5 0aa9e11fbc50df051841825cbb763621
SHA1 56b4fc1bb243ea2acb21143186080be9ccd78644
SHA256 cfe0d9e6c215c0b515ce08eade8a21eeb299ce0ef5e8f302926be60cda3dc186
SHA512 28ddc62aa6e1e426b55f4a5c179aba238afc6b39dad1c76b967ff9ddfb8e1f989fbe8deb316d5297257c5f2598ef2ef5f8866465af8a01384a6fb29ecfc6a1b2

memory/3708-25-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3708-24-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3708-30-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3708-26-0x00000000750B0000-0x000000007520D000-memory.dmp

C:\Windows\System\svchost.exe

MD5 5da64f42a4646c6d1d7f057a74b8cb98
SHA1 fa9a72111b010387f19b6cb8e6a67febb0d10977
SHA256 1f6b18de15b273dd5e532c8f446d32fe1f55361e3d98dbbcf2eb51b48cbf1819
SHA512 9f53c457e91afc41fb55be8863e4a40d180bba7c534838576d963ead829c4b2f5d9bcdc28044e1a6a599909e8d89e59cbf9084bdb17532dd74bbbb7eead1092b

memory/4796-37-0x00000000750B0000-0x000000007520D000-memory.dmp

memory/4796-42-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3336-44-0x00000000750B0000-0x000000007520D000-memory.dmp

memory/3336-50-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3708-54-0x0000000000400000-0x0000000000431000-memory.dmp

memory/776-57-0x0000000000401000-0x000000000042E000-memory.dmp

memory/776-56-0x0000000000400000-0x0000000000431000-memory.dmp

C:\Users\Admin\AppData\Roaming\mrsys.exe

MD5 f9b7fa0df8d5733c9263c5c1b814a176
SHA1 6889f6be650c1f7a54281ba7395c33772af0cf90
SHA256 5e06b17108ca13f58e48d44579e079e37e59225b38d28d93af43baaed523b5a3
SHA512 668800ab987c629c7e8031422629bcf41a7b8212370e664b28240113e55c8a2776e3732a5e44222b1a3553e42c236abd4bed2ad8fcd7941083db0090e0f42731

memory/1148-59-0x0000000000400000-0x0000000000431000-memory.dmp

memory/4796-60-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1148-69-0x0000000000400000-0x0000000000431000-memory.dmp

\??\PIPE\atsvc

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e