Analysis
-
max time kernel
1034s -
max time network
1044s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
11-04-2024 22:50
Behavioral task
behavioral1
Sample
RyansProject.exe
Resource
win7-20240215-en
General
-
Target
RyansProject.exe
-
Size
3.1MB
-
MD5
20edba711349a03803c2f96bbbe18b39
-
SHA1
675607f2c3510c35ea0784c1051e3a96c3b44416
-
SHA256
8e3077a2601f2727d79389b445d9e90336a0055c0f5a7ce330cbd4006876f1f9
-
SHA512
85130c87a19dc29bb6b6c26aea68f7173bf0df69c2a4b80e90bc2e14c19acdb1457f680e69d75c916fe7d546c470da5bb38b970843b33feda74847f5a675ee4e
-
SSDEEP
49152:uvyI22SsaNYfdPBldt698dBcjHnk8wbR4LoGdfTHHB72eh2NT:uvf22SsaNYfdPBldt6+dBcjHnk83
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.226:4782
aec627fa-aba4-45fa-a0fc-e456110a730a
-
encryption_key
7D414F9EC5601C94A757DDCDCF7C7A7809D8CFD0
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
-
Quasar payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2204-0-0x00000000000A0000-0x00000000003C4000-memory.dmp family_quasar C:\Users\Admin\AppData\Roaming\SubDir\Client.exe family_quasar behavioral1/memory/2948-10-0x0000000001320000-0x0000000001644000-memory.dmp family_quasar -
Executes dropped EXE 1 IoCs
Processes:
Client.exepid process 2948 Client.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 3032 schtasks.exe 2668 schtasks.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Client.exepid process 2948 Client.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
RyansProject.exeClient.exedescription pid process Token: SeDebugPrivilege 2204 RyansProject.exe Token: SeDebugPrivilege 2948 Client.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
NOTEPAD.EXEpid process 1532 NOTEPAD.EXE -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Client.exepid process 2948 Client.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
RyansProject.exeClient.exedescription pid process target process PID 2204 wrote to memory of 3032 2204 RyansProject.exe schtasks.exe PID 2204 wrote to memory of 3032 2204 RyansProject.exe schtasks.exe PID 2204 wrote to memory of 3032 2204 RyansProject.exe schtasks.exe PID 2204 wrote to memory of 2948 2204 RyansProject.exe Client.exe PID 2204 wrote to memory of 2948 2204 RyansProject.exe Client.exe PID 2204 wrote to memory of 2948 2204 RyansProject.exe Client.exe PID 2948 wrote to memory of 2668 2948 Client.exe schtasks.exe PID 2948 wrote to memory of 2668 2948 Client.exe schtasks.exe PID 2948 wrote to memory of 2668 2948 Client.exe schtasks.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\RyansProject.exe"C:\Users\Admin\AppData\Local\Temp\RyansProject.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2204 -
C:\Windows\system32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
PID:3032 -
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2948 -
C:\Windows\system32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
PID:2668
-
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\New Text Document.txt1⤵PID:2348
-
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\New Text Document.txt1⤵PID:1080
-
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\New Text Document.txt1⤵
- Suspicious use of FindShellTrayWindow
PID:1532
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
3.1MB
MD520edba711349a03803c2f96bbbe18b39
SHA1675607f2c3510c35ea0784c1051e3a96c3b44416
SHA2568e3077a2601f2727d79389b445d9e90336a0055c0f5a7ce330cbd4006876f1f9
SHA51285130c87a19dc29bb6b6c26aea68f7173bf0df69c2a4b80e90bc2e14c19acdb1457f680e69d75c916fe7d546c470da5bb38b970843b33feda74847f5a675ee4e