Analysis Overview
SHA256
ace4ac0da20b7e8b91205196f973a80e117bc4cede40ea445e851382567456a4
Threat Level: Known bad
The file dwdwdw.exe was found to be: Known bad.
Malicious Activity Summary
Quasar payload
Quasar RAT
Quasar family
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-05 06:22
Signatures
Quasar family
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-05 06:22
Reported
2024-08-05 06:25
Platform
win7-20240708-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe
"C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe"
Network
| Country | Destination | Domain | Proto |
| US | 147.185.221.18:42996 | tcp | |
| US | 147.185.221.18:1770 | tcp | |
| US | 147.185.221.18:42996 | tcp | |
| US | 147.185.221.18:1770 | tcp | |
| US | 147.185.221.18:42996 | tcp | |
| US | 147.185.221.18:1770 | tcp | |
| US | 147.185.221.18:42996 | tcp | |
| US | 147.185.221.18:1770 | tcp | |
| US | 147.185.221.18:42996 | tcp | |
| US | 147.185.221.18:1770 | tcp | |
| US | 147.185.221.18:42996 | tcp |
Files
memory/2136-0-0x000007FEF50A3000-0x000007FEF50A4000-memory.dmp
memory/2136-1-0x0000000001120000-0x0000000001444000-memory.dmp
memory/2136-2-0x000007FEF50A0000-0x000007FEF5A8C000-memory.dmp
memory/2136-3-0x000007FEF50A3000-0x000007FEF50A4000-memory.dmp
memory/2136-4-0x000007FEF50A0000-0x000007FEF5A8C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-05 06:22
Reported
2024-08-05 06:23
Platform
win10v2004-20240802-en
Max time kernel
72s
Max time network
72s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
Enumerates physical storage devices
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| 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\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 |
| 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\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM | 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\Explorer\Accent\AccentColorMenu = "4292311040" | 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\CurrentVersion\Themes\History\AutoColor = "0" | 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\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 |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "103" | C:\Windows\system32\LogonUI.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\shutdown.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\shutdown.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.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 2268 wrote to memory of 2052 | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | C:\Windows\System32\shutdown.exe |
| PID 2268 wrote to memory of 2052 | N/A | C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe | C:\Windows\System32\shutdown.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe
"C:\Users\Admin\AppData\Local\Temp\dwdwdw.exe"
C:\Windows\System32\shutdown.exe
"C:\Windows\System32\shutdown.exe" /r /t 0
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3946855 /state1:0x41c64e6d
Network
| Country | Destination | Domain | Proto |
| US | 147.185.221.18:42996 | tcp | |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 147.185.221.18:1770 | tcp | |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.142.123.92.in-addr.arpa | udp |
| US | 147.185.221.18:42996 | tcp | |
| US | 8.8.8.8:53 | ipwho.is | udp |
| DE | 195.201.57.90:443 | ipwho.is | tcp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp | |
| N/A | 20.189.173.25:443 | tcp | |
| US | 8.8.8.8:53 | udp |
Files
memory/2268-0-0x00007FFBC4853000-0x00007FFBC4855000-memory.dmp
memory/2268-1-0x00000000003A0000-0x00000000006C4000-memory.dmp
memory/2268-2-0x00007FFBC4850000-0x00007FFBC5311000-memory.dmp
memory/2268-3-0x000000001BDB0000-0x000000001BE00000-memory.dmp
memory/2268-4-0x000000001BEC0000-0x000000001BF72000-memory.dmp
memory/2268-5-0x00007FFBC4853000-0x00007FFBC4855000-memory.dmp
memory/2268-6-0x00007FFBC4850000-0x00007FFBC5311000-memory.dmp
memory/2268-7-0x000000001BD80000-0x000000001BD92000-memory.dmp
memory/2268-8-0x000000001BE40000-0x000000001BE7C000-memory.dmp
memory/2268-9-0x00007FFBC4850000-0x00007FFBC5311000-memory.dmp