c00cd463a511b8ecbc21d9f4787d1bafb3c4da43949fc3fc6c8933d361bbaac1

Analysis

max time kernel
130s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
18/03/2023, 09:24

Target

chatgpt_prompts.json
Size

90KB
MD5

d85b971b0748decdd8090118947d0e57
SHA1

0f607d4a0f812361119209414a5a70a46aec682b
SHA256

c00cd463a511b8ecbc21d9f4787d1bafb3c4da43949fc3fc6c8933d361bbaac1
SHA512

93bc1ce9d450bd84f345dea13e40fb9c1f1e7e0c5fe1ea7b06a668fb24c5642459814172045d0b62c3fee914c73a486e763689f579a9e1b7c1ba20dd04e84078
SSDEEP

1536:bOvU0eM1Z0KTIBw4L9gMq7lqxhS3Ibvq87qr3Bmayu4cMXZ4baLxxcyfH++s5daY:bOvU0eM1OvV9C7lqxhS3Ibvq8S3BmayY

Score

3^/10

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 932 wrote to memory of 1468	932	cmd.exe	29
PID 932 wrote to memory of 1468	932	cmd.exe	29
PID 932 wrote to memory of 1468	932	cmd.exe	29
PID 1468 wrote to memory of 1748	1468	rundll32.exe	30
PID 1468 wrote to memory of 1748	1468	rundll32.exe	30
PID 1468 wrote to memory of 1748	1468	rundll32.exe	30
PID 1468 wrote to memory of 1748	1468	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chatgpt_prompts.json
1⤵
- Suspicious use of WriteProcessMemory
PID:932
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\chatgpt_prompts.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1468
- - 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\chatgpt_prompts.json"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1748

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact