1c5945ba631e642a275fb2b967c15a047b50640bb8d71908387d90074ef3bbdd

Analysis

max time kernel
118s
max time network
120s
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

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General

Target

ChaosRansomwareBuilderVersion4-main/Src Code/CustomWindowsForm/Form2.resources
Size

786B
MD5

a0f297d650059197ea79c4e102f4bd91
SHA1

f7d100548c2f1412b92140430c612b4d50bae847
SHA256

f93baead1ad6a261359ae10d1a12365dbe4feacc1c941ad977cb3675e34669cd
SHA512

d72481e1a11ceb61d5e911a21f447dda7b8c43c8724f7066eefb26f7f4d307c6dda9cc4e9442e6312c3d4fe2458ace8b198463ef93d14c0bb7667c46da0634dd

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\resources_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\resources_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\resources_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\resources_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\resources_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\.resources	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\.resources\ = "resources_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\resources_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
272	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
272	AcroRd32.exe
272	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2924	2140	cmd.exe	31
PID 2140 wrote to memory of 2924	2140	cmd.exe	31
PID 2140 wrote to memory of 2924	2140	cmd.exe	31
PID 2924 wrote to memory of 272	2924	rundll32.exe	32
PID 2924 wrote to memory of 272	2924	rundll32.exe	32
PID 2924 wrote to memory of 272	2924	rundll32.exe	32
PID 2924 wrote to memory of 272	2924	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\ChaosRansomwareBuilderVersion4-main\Src Code\CustomWindowsForm\Form2.resources"
1⤵
- Suspicious use of WriteProcessMemory
PID:2140
- 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\CustomWindowsForm\Form2.resources
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2924
- - 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\CustomWindowsForm\Form2.resources"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:272

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
8b703b635c863ff85690a4f02a1ead23

SHA1
2a3d4b1ad9df64eb0a6876bd334653f91a0a65fa

SHA256
e3aabae087e64f5b170d310e16c38d241e65df93c6cdddb1237cac96f766a546

SHA512
638c10fcbb0627cc047fcbd1e78fee846692dabad5c06f5cdf4b0a3dec657d760494dd5306e7c6f4a150b5bc397c8bd4b7ab08c95da93954d71613a3e58a1720

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