Overview
overview
3Static
static
3dotnet/Sys...nt.dll
windows7-x64
3dotnet/Sys...nt.dll
windows10-2004-x64
3dotnet/Sys...le.dll
windows7-x64
3dotnet/Sys...le.dll
windows10-2004-x64
3dotnet/Sys...ic.dll
windows7-x64
3dotnet/Sys...ic.dll
windows10-2004-x64
3dotnet/Sys...ed.dll
windows7-x64
3dotnet/Sys...ed.dll
windows10-2004-x64
3dotnet/Sys...ns.dll
windows7-x64
3dotnet/Sys...ns.dll
windows10-2004-x64
3dotnet/Sys...ns.dll
windows7-x64
3dotnet/Sys...ns.dll
windows10-2004-x64
3dotnet/Sys...ns.dll
windows7-x64
1dotnet/Sys...ns.dll
windows10-2004-x64
1dotnet/Sys...nc.dll
windows7-x64
3dotnet/Sys...nc.dll
windows10-2004-x64
3dotnet/Sys...es.dll
windows7-x64
3dotnet/Sys...es.dll
windows10-2004-x64
3dotnet/Sys...er.dll
windows7-x64
3dotnet/Sys...er.dll
windows10-2004-x64
3dotnet/Sys...el.dll
windows7-x64
3dotnet/Sys...el.dll
windows10-2004-x64
3dotnet/Sys...on.dll
windows7-x64
1dotnet/Sys...on.dll
windows10-2004-x64
1dotnet/Sys...le.dll
windows7-x64
3dotnet/Sys...le.dll
windows10-2004-x64
3dotnet/Sys...re.dll
windows7-x64
1dotnet/Sys...re.dll
windows10-2004-x64
1dotnet/Sys...on.dll
windows7-x64
3dotnet/Sys...on.dll
windows10-2004-x64
3dotnet/Sys...ns.dll
windows7-x64
1dotnet/Sys...ns.dll
windows10-2004-x64
1Analysis
-
max time kernel
92s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05/08/2024, 10:58
Static task
static1
Behavioral task
behavioral1
Sample
dotnet/System.Collections.Concurrent.dll
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
dotnet/System.Collections.Concurrent.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
dotnet/System.Collections.Immutable.dll
Resource
win7-20240704-en
Behavioral task
behavioral4
Sample
dotnet/System.Collections.Immutable.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
dotnet/System.Collections.NonGeneric.dll
Resource
win7-20240705-en
Behavioral task
behavioral6
Sample
dotnet/System.Collections.NonGeneric.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
dotnet/System.Collections.Specialized.dll
Resource
win7-20240705-en
Behavioral task
behavioral8
Sample
dotnet/System.Collections.Specialized.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
dotnet/System.Collections.dll
Resource
win7-20240704-en
Behavioral task
behavioral10
Sample
dotnet/System.Collections.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
dotnet/System.ComponentModel.Annotations.dll
Resource
win7-20240708-en
Behavioral task
behavioral12
Sample
dotnet/System.ComponentModel.Annotations.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
dotnet/System.ComponentModel.DataAnnotations.dll
Resource
win7-20240729-en
Behavioral task
behavioral14
Sample
dotnet/System.ComponentModel.DataAnnotations.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
dotnet/System.ComponentModel.EventBasedAsync.dll
Resource
win7-20240704-en
Behavioral task
behavioral16
Sample
dotnet/System.ComponentModel.EventBasedAsync.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
dotnet/System.ComponentModel.Primitives.dll
Resource
win7-20240708-en
Behavioral task
behavioral18
Sample
dotnet/System.ComponentModel.Primitives.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
dotnet/System.ComponentModel.TypeConverter.dll
Resource
win7-20240704-en
Behavioral task
behavioral20
Sample
dotnet/System.ComponentModel.TypeConverter.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral21
Sample
dotnet/System.ComponentModel.dll
Resource
win7-20240708-en
Behavioral task
behavioral22
Sample
dotnet/System.ComponentModel.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral23
Sample
dotnet/System.Configuration.dll
Resource
win7-20240729-en
Behavioral task
behavioral24
Sample
dotnet/System.Configuration.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral25
Sample
dotnet/System.Console.dll
Resource
win7-20240704-en
Behavioral task
behavioral26
Sample
dotnet/System.Console.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral27
Sample
dotnet/System.Core.dll
Resource
win7-20240705-en
Behavioral task
behavioral28
Sample
dotnet/System.Core.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral29
Sample
dotnet/System.Data.Common.dll
Resource
win7-20240704-en
Behavioral task
behavioral30
Sample
dotnet/System.Data.Common.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral31
Sample
dotnet/System.Data.DataSetExtensions.dll
Resource
win7-20240708-en
Behavioral task
behavioral32
Sample
dotnet/System.Data.DataSetExtensions.dll
Resource
win10v2004-20240802-en
General
-
Target
dotnet/System.Collections.dll
-
Size
238KB
-
MD5
8c7cf260eba50454653ce44becad81a4
-
SHA1
e5ef3a2162a6df79e904fb82781f8fdaafed9ac0
-
SHA256
879d73082e641e5f4feb86d5ad02c4bf6f78edc88a0a1b2b4b9e886274cd3cee
-
SHA512
2a613269b1d22aba40f689ed729f669417012f451ebe0d0907d99bfbc8b7158cdc0f53447a1db93fe4b50b6a67c4ce4079beb87c8ed0c184af495053bb4cca79
-
SSDEEP
3072:iwksAJb4iJWBlPsXOL5Ts3yfgL40Y7PVvmtfYw1CqFAGCLpv4/7e2lHNNcQGD0PM:Wchs45TjM56pAje2lHM9CIJ9lbk6
Malware Config
Signatures
-
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 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1728 wrote to memory of 232 1728 rundll32.exe 84 PID 1728 wrote to memory of 232 1728 rundll32.exe 84 PID 1728 wrote to memory of 232 1728 rundll32.exe 84
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dotnet\System.Collections.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dotnet\System.Collections.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:232
-