Analysis Overview
SHA256
4c10d3ddeba414775ebb5af4da5b7bb17ae52a92831fe09244f63c36b2c77f34
Threat Level: Shows suspicious behavior
The file PowerPoint.zip was found to be: Shows suspicious behavior.
Malicious Activity Summary
Deletes itself
Executes dropped EXE
Writes to the Master Boot Record (MBR)
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-11 15:17
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-11 15:17
Reported
2024-06-11 15:18
Platform
win10-20240404-en
Max time kernel
2s
Max time network
4s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\sys3.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\sys3.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PHYSICALDRIVE0 | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
| File opened for modification | \??\PHYSICALDRIVE0 | C:\Users\Admin\AppData\Local\Temp\sys3.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM | C:\Windows\system32\LogonUI.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\sys3.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\LogonUI.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4672 wrote to memory of 4856 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\Users\Admin\AppData\Local\Temp\sys3.exe |
| PID 4672 wrote to memory of 4856 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\Users\Admin\AppData\Local\Temp\sys3.exe |
| PID 4672 wrote to memory of 4856 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\Users\Admin\AppData\Local\Temp\sys3.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
C:\Users\Admin\AppData\Local\Temp\sys3.exe
C:\Users\Admin\AppData\Local\Temp\\sys3.exe
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3ae9855 /state1:0x41c64e6d
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.143.182.52.in-addr.arpa | udp |
Files
memory/4672-0-0x000000002AA00000-0x000000002AA24000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sys3.exe
| MD5 | 70108103a53123201ceb2e921fcfe83c |
| SHA1 | c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3 |
| SHA256 | 9c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d |
| SHA512 | 996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b |
memory/4672-5-0x000000002AA00000-0x000000002AA24000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\systm.txt
| MD5 | ab7368e081dc109f4133ffd943c98b74 |
| SHA1 | 1847691b3535b25f368389327543392eafd3e4fa |
| SHA256 | 6c2c3417ded140721c60368f64f02b4d4ed5f39b528450b75d2475da4b80c1ae |
| SHA512 | e59e763b66ab716a72d3121d8a8b9b6a2dd4beb89e949202ae55ef0a1cef316d56071df8a41a587c605d1575c18f2f4f3a41d2cb174a89558722e9730a913912 |