Overview
overview
10Static
static
10ChaosRanso...in.zip
windows7-x64
1ChaosRanso...in.zip
windows10-2004-x64
1ChaosRanso...ICENSE
windows7-x64
1ChaosRanso...ICENSE
windows10-2004-x64
1ChaosRanso...DME.md
windows7-x64
3ChaosRanso...DME.md
windows10-2004-x64
3ChaosRanso...csproj
windows7-x64
3ChaosRanso...csproj
windows10-2004-x64
3ChaosRanso...v4.ico
windows7-x64
1ChaosRanso...v4.ico
windows10-2004-x64
3ChaosRanso...v4.sln
windows7-x64
3ChaosRanso...v4.sln
windows10-2004-x64
3ChaosRanso...ner.cs
windows7-x64
3ChaosRanso...ner.cs
windows10-2004-x64
3ChaosRanso...orm.cs
windows7-x64
3ChaosRanso...orm.cs
windows10-2004-x64
3ChaosRanso...ources
windows7-x64
3ChaosRanso...ources
windows10-2004-x64
3ChaosRanso...nX.vbs
windows7-x64
1ChaosRanso...nX.vbs
windows10-2004-x64
1ChaosRanso...nZ.vbs
windows7-x64
1ChaosRanso...nZ.vbs
windows10-2004-x64
1ChaosRanso...ler.cs
windows7-x64
3ChaosRanso...ler.cs
windows10-2004-x64
3ChaosRanso...ner.cs
windows7-x64
3ChaosRanso...ner.cs
windows10-2004-x64
3ChaosRanso...rm2.cs
windows7-x64
3ChaosRanso...rm2.cs
windows10-2004-x64
3ChaosRanso...ources
windows7-x64
3ChaosRanso...ources
windows10-2004-x64
3ChaosRanso...on.vbs
windows7-x64
1ChaosRanso...on.vbs
windows10-2004-x64
1Analysis
-
max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
26-09-2024 23:22
Behavioral task
behavioral1
Sample
ChaosRansomwareBuilderVersion4-main.zip
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ChaosRansomwareBuilderVersion4-main.zip
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
ChaosRansomwareBuilderVersion4-main/LICENSE
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
ChaosRansomwareBuilderVersion4-main/LICENSE
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
ChaosRansomwareBuilderVersion4-main/README.md
Resource
win7-20240708-en
Behavioral task
behavioral6
Sample
ChaosRansomwareBuilderVersion4-main/README.md
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/Chaos Ransomware Builder v4.csproj
Resource
win7-20240729-en
Behavioral task
behavioral8
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/Chaos Ransomware Builder v4.csproj
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/Chaos Ransomware Builder v4.ico
Resource
win7-20240704-en
Behavioral task
behavioral10
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/Chaos Ransomware Builder v4.ico
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/Chaos Ransomware Builder v4.sln
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/Chaos Ransomware Builder v4.sln
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/BlackForm.Designer.cs
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/BlackForm.Designer.cs
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/BlackForm.cs
Resource
win7-20240729-en
Behavioral task
behavioral16
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/BlackForm.cs
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/BlackForm.resources
Resource
win7-20240708-en
Behavioral task
behavioral18
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/BlackForm.resources
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/ButtonX.vbs
Resource
win7-20240708-en
Behavioral task
behavioral20
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/ButtonX.vbs
Resource
win10v2004-20240910-en
Behavioral task
behavioral21
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/ButtonZ.vbs
Resource
win7-20240903-en
Behavioral task
behavioral22
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/ButtonZ.vbs
Resource
win10v2004-20240802-en
Behavioral task
behavioral23
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Compiler.cs
Resource
win7-20240903-en
Behavioral task
behavioral24
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Compiler.cs
Resource
win10v2004-20240802-en
Behavioral task
behavioral25
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Form2.Designer.cs
Resource
win7-20240903-en
Behavioral task
behavioral26
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Form2.Designer.cs
Resource
win10v2004-20240802-en
Behavioral task
behavioral27
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Form2.cs
Resource
win7-20240903-en
Behavioral task
behavioral28
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Form2.cs
Resource
win10v2004-20240802-en
Behavioral task
behavioral29
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Form2.resources
Resource
win7-20240903-en
Behavioral task
behavioral30
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Form2.resources
Resource
win10v2004-20240802-en
Behavioral task
behavioral31
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/MinMaxButton.vbs
Resource
win7-20240704-en
Behavioral task
behavioral32
Sample
ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/MinMaxButton.vbs
Resource
win10v2004-20240802-en
General
-
Target
ChaosRansomwareBuilderVersion4-main/Src Code/Chaos Ransomware Builder v4.sln
-
Size
1KB
-
MD5
9e235013f192305fd8d54547b1275562
-
SHA1
a2c2b5fd1e579b2d3c053ce95ce6f9478933912f
-
SHA256
9f1b1ad0c1a8388204d8de9d51bf24db03003966dd9a6a60923532664822c761
-
SHA512
b045d6a24ba57dae17407b1b3b2fd0eb9368611bd2a1936c2f0bf9038a15f237070d01bd2f8a25af75cbcf12b5958def7c955126f5fa18c0b0db0c3b5843858e
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
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.
Processes:
AcroRd32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe -
Modifies registry class 9 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\sln_auto_file\shell rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\sln_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\sln_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\sln_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\.sln rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\.sln\ = "sln_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\sln_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_CLASSES\sln_auto_file\shell\Read\command rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
AcroRd32.exepid process 860 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
AcroRd32.exepid process 860 AcroRd32.exe 860 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 2356 wrote to memory of 2648 2356 cmd.exe rundll32.exe PID 2356 wrote to memory of 2648 2356 cmd.exe rundll32.exe PID 2356 wrote to memory of 2648 2356 cmd.exe rundll32.exe PID 2648 wrote to memory of 860 2648 rundll32.exe AcroRd32.exe PID 2648 wrote to memory of 860 2648 rundll32.exe AcroRd32.exe PID 2648 wrote to memory of 860 2648 rundll32.exe AcroRd32.exe PID 2648 wrote to memory of 860 2648 rundll32.exe AcroRd32.exe
Processes
-
C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\ChaosRansomwareBuilderVersion4-main\Src Code\Chaos Ransomware Builder v4.sln"1⤵
- Suspicious use of WriteProcessMemory
PID:2356 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ChaosRansomwareBuilderVersion4-main\Src Code\Chaos Ransomware Builder v4.sln2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2648 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\ChaosRansomwareBuilderVersion4-main\Src Code\Chaos Ransomware Builder v4.sln"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:860
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD51d98eb58df53eed919051253af41ca9d
SHA115d5e3885af8dae115e6d248aab0caed7c0553f0
SHA256d846e0cbf90ac7821800bc71272f7aa9c31c3cd520a020829d06def6a2f15439
SHA512941276e292710297b815eee8456ed510bc75ce3e1b5726980c4b5207f3b990282445797324a71edbf40c3ddea9072eeff0c17249a978736656ce1ad3ad4e849a