Overview
overview
10Static
static
10Quasar Gol...C2.dll
windows10-2004-x64
3Quasar Gol...C3.dll
windows10-2004-x64
3Quasar Gol...ck.dll
windows10-2004-x64
3Quasar Gol...in.dll
windows10-2004-x64
1Quasar Gol...in.dll
windows10-2004-x64
1Quasar Gol...in.dll
windows10-2004-x64
1Quasar Gol...le.exe
windows10-2004-x64
7Quasar Gol...or.exe
windows10-2004-x64
7Quasar Gol...ss.exe
windows10-2004-x64
3Quasar Gol...il.dll
windows10-2004-x64
1Quasar Gol...at.dll
windows10-2004-x64
1Quasar Gol...nx.exe
windows10-2004-x64
10Quasar Gol...ib.dll
windows10-2004-x64
1Quasar Gol...nt.exe
windows10-2004-x64
10Analysis
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max time kernel
41s -
max time network
48s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
24-11-2024 01:04
Behavioral task
behavioral1
Sample
Quasar Golden Edition 1.4.1.0/Include/NCC2.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral2
Sample
Quasar Golden Edition 1.4.1.0/Include/NCC3.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
Quasar Golden Edition 1.4.1.0/Include/NCCheck.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral4
Sample
Quasar Golden Edition 1.4.1.0/Include/VS08ReactorAddin.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
Quasar Golden Edition 1.4.1.0/Include/VS13ReactorAddin.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral6
Sample
Quasar Golden Edition 1.4.1.0/Include/VSReactorAddin.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
Quasar Golden Edition 1.4.1.0/Include/dotNET_Reactor.Console.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral8
Sample
Quasar Golden Edition 1.4.1.0/Include/dotNET_Reactor.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral9
Sample
Quasar Golden Edition 1.4.1.0/Include/mpress.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral10
Sample
Quasar Golden Edition 1.4.1.0/Mono.Cecil.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral11
Sample
Quasar Golden Edition 1.4.1.0/Mono.Nat.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral12
Sample
Quasar Golden Edition 1.4.1.0/Quasar Golden Editionx.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral13
Sample
Quasar Golden Edition 1.4.1.0/Vestris.ResourceLib.dll
Resource
win10v2004-20241007-en
General
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Target
Quasar Golden Edition 1.4.1.0/Include/dotNET_Reactor.Console.exe
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Size
14KB
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MD5
0b4dbf61a98f3e34cdd3a1b08a6a4609
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SHA1
73587f1f5d040541b230513d22d696513dbd4cf9
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SHA256
e817802f166662a7df0b144571354d74b10e34d120f91ae9d84ca3ba925241c6
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SHA512
7cca370890e4e245c84507623531b5f54b76ced3e8c6b87cdfc47ed16560b6a0a5cf9e0556075cd0d9266908e445b854114edd69d50870839624589676c0e688
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SSDEEP
192:8jY53csvsqHwrHEdSAejbMfDn1Gp78dsKGXOdlWW1ksTkwy:8jEnskskQlm1GRJKGXOdlWW1XTR
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 3476 dotNET_Reactor.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dotNET_Reactor.exe -
Modifies registry class 20 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 dotNET_Reactor.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 dotNET_Reactor.exe Set value (data) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff dotNET_Reactor.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 dotNET_Reactor.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ dotNET_Reactor.exe Set value (data) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots dotNET_Reactor.exe Set value (data) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff dotNET_Reactor.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags dotNET_Reactor.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell dotNET_Reactor.exe Set value (data) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 dotNET_Reactor.exe Set value (data) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e80922b16d365937a46956b92703aca08af0000 dotNET_Reactor.exe Set value (data) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff dotNET_Reactor.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU dotNET_Reactor.exe Set value (data) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff dotNET_Reactor.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" dotNET_Reactor.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell dotNET_Reactor.exe Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Documents" dotNET_Reactor.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ dotNET_Reactor.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings dotNET_Reactor.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 dotNET_Reactor.exe -
Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe 3476 dotNET_Reactor.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3700 wrote to memory of 3476 3700 dotNET_Reactor.Console.exe 83 PID 3700 wrote to memory of 3476 3700 dotNET_Reactor.Console.exe 83 PID 3700 wrote to memory of 3476 3700 dotNET_Reactor.Console.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\Quasar Golden Edition 1.4.1.0\Include\dotNET_Reactor.Console.exe"C:\Users\Admin\AppData\Local\Temp\Quasar Golden Edition 1.4.1.0\Include\dotNET_Reactor.Console.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3700 -
C:\Users\Admin\AppData\Local\Temp\Quasar Golden Edition 1.4.1.0\Include\dotNET_Reactor.exe"C:\Users\Admin\AppData\Local\Temp\Quasar Golden Edition 1.4.1.0\Include\dotNET_Reactor.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3476
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
68KB
MD5bc6887aa21e7794a2c27e3ffd3dc3ed0
SHA12b845941c93094d7203553582f69d0c61a9fcee4
SHA256919130e16d33fd58d0370b06b7fb0fc253f5b571fc33ad5c21eb8dafe4760c94
SHA5129e952ae72851ba081809ea5d7a86108b0355f0882bae912e0ecf931fde2e878994142b6c16094473305392981439e49d9a32aa6aaf94edd07238a0ecb787e834