Malware Analysis Report

2024-10-23 21:24

Sample ID 240805-jythhavcmb
Target skibidirat.exe
SHA256 62e9fdaaf90da01ef28a26823e3442d73b93dc0e23d93139df631701cf6da260
Tags
office04 quasar spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

62e9fdaaf90da01ef28a26823e3442d73b93dc0e23d93139df631701cf6da260

Threat Level: Known bad

The file skibidirat.exe was found to be: Known bad.

Malicious Activity Summary

office04 quasar spyware trojan

Quasar family

Quasar payload

Quasar RAT

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of SendNotifyMessage

Modifies data under HKEY_USERS

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-05 08:05

Signatures

Quasar family

quasar

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 08:05

Reported

2024-08-05 08:07

Platform

win7-20240729-en

Max time kernel

149s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\skibidirat.exe"

Signatures

Quasar RAT

trojan spyware quasar

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\skibidirat.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\skibidirat.exe

"C:\Users\Admin\AppData\Local\Temp\skibidirat.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
US 147.185.221.18:1770 tcp

Files

memory/1664-0-0x000007FEF6183000-0x000007FEF6184000-memory.dmp

memory/1664-1-0x0000000001060000-0x0000000001384000-memory.dmp

memory/1664-2-0x000007FEF6180000-0x000007FEF6B6C000-memory.dmp

memory/1664-3-0x000007FEF6183000-0x000007FEF6184000-memory.dmp

memory/1664-4-0x000007FEF6180000-0x000007FEF6B6C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-05 08:05

Reported

2024-08-05 08:05

Platform

win10v2004-20240802-en

Max time kernel

39s

Max time network

41s

Command Line

"C:\Users\Admin\AppData\Local\Temp\skibidirat.exe"

Signatures

Quasar RAT

trojan spyware quasar

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\skibidirat.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\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
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\ColorizationAfterglowBalance = "10" 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
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History 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\AccentColor = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "233" 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\ColorizationGlassAttribute = "1" 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\ColorizationColor = "3288365271" 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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.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\skibidirat.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.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 2344 wrote to memory of 444 N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.exe C:\Windows\System32\shutdown.exe
PID 2344 wrote to memory of 444 N/A C:\Users\Admin\AppData\Local\Temp\skibidirat.exe C:\Windows\System32\shutdown.exe

Processes

C:\Users\Admin\AppData\Local\Temp\skibidirat.exe

"C:\Users\Admin\AppData\Local\Temp\skibidirat.exe"

C:\Windows\System32\shutdown.exe

"C:\Windows\System32\shutdown.exe" /s /t 0

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x4 /state0:0xa395d855 /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 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 18.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 ipwho.is udp
DE 195.201.57.90:443 ipwho.is tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 90.57.201.195.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/2344-0-0x00007FFA10843000-0x00007FFA10845000-memory.dmp

memory/2344-1-0x0000000000140000-0x0000000000464000-memory.dmp

memory/2344-2-0x00007FFA10840000-0x00007FFA11301000-memory.dmp

memory/2344-3-0x000000001BB60000-0x000000001BBB0000-memory.dmp

memory/2344-4-0x000000001BC70000-0x000000001BD22000-memory.dmp

memory/2344-5-0x000000001BB30000-0x000000001BB42000-memory.dmp

memory/2344-6-0x000000001BBF0000-0x000000001BC2C000-memory.dmp

memory/2344-7-0x00007FFA10843000-0x00007FFA10845000-memory.dmp

memory/2344-8-0x00007FFA10840000-0x00007FFA11301000-memory.dmp

memory/2344-10-0x00007FFA10840000-0x00007FFA11301000-memory.dmp