Overview
overview
10Static
static
10Quasar-master.7z
windows10-1703-x64
3Quasar.Ser...ner.cs
windows10-1703-x64
3Quasar.Ser...Add.cs
windows10-1703-x64
3Quasar.Ser...ner.cs
windows10-1703-x64
3Quasar.Ser...ner.cs
windows10-1703-x64
3Quasar.Ser...ner.cs
windows10-1703-x64
3Quasar.Ser...ger.cs
windows10-1703-x64
3Quasar.Ser...ter.cs
windows10-1703-x64
3Quasar.Ser...per.cs
windows10-1703-x64
3Quasar.Ser...per.cs
windows10-1703-x64
3Quasar.Ser...me.xml
windows10-1703-x64
1Quasar.Ser...ar.pdb
windows10-1703-x64
3Quasar.Ser....cache
windows10-1703-x64
3Quasar.Ser...c.json
windows10-1703-x64
3Quasar.Ser....props
windows10-1703-x64
3Quasar.Ser...argets
windows10-1703-x64
3Quasar.Ser...me.xml
windows10-1703-x64
1Quasar.sln
windows10-1703-x64
3packages/D....nupkg
windows10-1703-x64
3packages/E....nupkg
windows10-1703-x64
3packages/E...S2.ps1
windows10-1703-x64
3packages/E...k6.ps1
windows10-1703-x64
3packages/E...it.ps1
windows10-1703-x64
3packages/E...ll.ps1
windows10-1703-x64
3packages/E...f6.exe
windows10-1703-x64
1packages/E...f6.exe
windows10-1703-x64
1packages/E...f6.exe
windows10-1703-x64
1packages/E...f6.exe
windows10-1703-x64
1packages/F...rs.dll
windows10-1703-x64
1packages/F...db.dll
windows10-1703-x64
1packages/F...rs.dll
windows10-1703-x64
1packages/F...db.dll
windows10-1703-x64
1Analysis
-
max time kernel
124s -
max time network
141s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
21-05-2024 00:01
Behavioral task
behavioral1
Sample
Quasar-master.7z
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Quasar.Server/Forms/FrmStartupAdd.Designer.cs
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
Quasar.Server/Forms/FrmStartupAdd.cs
Resource
win10-20240404-en
Behavioral task
behavioral4
Sample
Quasar.Server/Forms/FrmStartupManager.Designer.cs
Resource
win10-20240404-en
Behavioral task
behavioral5
Sample
Quasar.Server/Forms/FrmSystemInformation.Designer.cs
Resource
win10-20240404-en
Behavioral task
behavioral6
Sample
Quasar.Server/Forms/FrmTaskManager.Designer.cs
Resource
win10-20240404-en
Behavioral task
behavioral7
Sample
Quasar.Server/Forms/FrmTaskManager.cs
Resource
win10-20240404-en
Behavioral task
behavioral8
Sample
Quasar.Server/Helper/LogsViewUpdater.cs
Resource
win10-20240404-en
Behavioral task
behavioral9
Sample
Quasar.Server/Helper/NativeMethodsHelper.cs
Resource
win10-20240404-en
Behavioral task
behavioral10
Sample
Quasar.Server/Helper/WindowHelper.cs
Resource
win10-20240404-en
Behavioral task
behavioral11
Sample
Quasar.Server/obj/Debug/net452/Quasar.exe.withSupportedRuntime.xml
Resource
win10-20240404-en
Behavioral task
behavioral12
Sample
Quasar.Server/obj/Debug/net452/Quasar.pdb
Resource
win10-20240404-en
Behavioral task
behavioral13
Sample
Quasar.Server/obj/Debug/net47/Quasar.Server.assets.cache
Resource
win10-20240404-en
Behavioral task
behavioral14
Sample
Quasar.Server/obj/Quasar.Server.csproj.nuget.dgspec.json
Resource
win10-20240404-en
Behavioral task
behavioral15
Sample
Quasar.Server/obj/Quasar.Server.csproj.nuget.g.props
Resource
win10-20240404-en
Behavioral task
behavioral16
Sample
Quasar.Server/obj/Quasar.Server.csproj.nuget.g.targets
Resource
win10-20240404-en
Behavioral task
behavioral17
Sample
Quasar.Server/obj/Release/net452/Quasar.exe.withSupportedRuntime.xml
Resource
win10-20240404-en
Behavioral task
behavioral18
Sample
Quasar.sln
Resource
win10-20240404-en
Behavioral task
behavioral19
Sample
packages/DotNetZip.Reduced.1.9.1.8/DotNetZip.Reduced.1.9.1.8.nupkg
Resource
win10-20240404-en
Behavioral task
behavioral20
Sample
packages/EntityFramework.6.4.4/EntityFramework.6.4.4.nupkg
Resource
win10-20240404-en
Behavioral task
behavioral21
Sample
packages/EntityFramework.6.4.4/tools/EntityFramework6.PS2.ps1
Resource
win10-20240404-en
Behavioral task
behavioral22
Sample
packages/EntityFramework.6.4.4/tools/EntityFramework6.ps1
Resource
win10-20240404-en
Behavioral task
behavioral23
Sample
packages/EntityFramework.6.4.4/tools/init.ps1
Resource
win10-20240404-en
Behavioral task
behavioral24
Sample
packages/EntityFramework.6.4.4/tools/install.ps1
Resource
win10-20240404-en
Behavioral task
behavioral25
Sample
packages/EntityFramework.6.4.4/tools/net40/any/ef6.exe
Resource
win10-20240404-en
Behavioral task
behavioral26
Sample
packages/EntityFramework.6.4.4/tools/net40/win-x86/ef6.exe
Resource
win10-20240404-en
Behavioral task
behavioral27
Sample
packages/EntityFramework.6.4.4/tools/net45/win-x86/ef6.exe
Resource
win10-20240404-en
Behavioral task
behavioral28
Sample
packages/EntityFramework.6.4.4/tools/netcoreapp3.0/any/ef6.exe
Resource
win10-20240404-en
Behavioral task
behavioral29
Sample
packages/Fody.6.7.0/netclassictask/FodyHelpers.dll
Resource
win10-20240404-en
Behavioral task
behavioral30
Sample
packages/Fody.6.7.0/netclassictask/Mono.Cecil.Pdb.dll
Resource
win10-20240404-en
Behavioral task
behavioral31
Sample
packages/Fody.6.7.0/netstandardtask/FodyHelpers.dll
Resource
win10-20240404-en
Behavioral task
behavioral32
Sample
packages/Fody.6.7.0/netstandardtask/Mono.Cecil.Pdb.dll
Resource
win10-20240404-en
General
-
Target
Quasar.Server/Helper/NativeMethodsHelper.cs
-
Size
1KB
-
MD5
adcea94dd37fcf179fbc616e8e841554
-
SHA1
7e6d4e2b6fe3b2f68775eca2edff3bd8c732f476
-
SHA256
e5ce29e2df42b558df24829a896592819950f4697357ccf3ccabd1e4000ab11f
-
SHA512
50ad9bb6791be283648aaa4d39b57125e82da159aa5b3158be82d14f558057925318eeedd056498307cc62cfeb076938920537055cddcea280690606b20077bf
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 2 IoCs
Processes:
cmd.exeOpenWith.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000_Classes\Local Settings cmd.exe Key created \REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000_Classes\Local Settings OpenWith.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
OpenWith.exepid process 4448 OpenWith.exe
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Quasar.Server\Helper\NativeMethodsHelper.cs1⤵
- Modifies registry class
PID:3552
-
C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4448