045b72bca55c9d7b9152c90c5a1c0cb3189602048cdccd9438ab5e668a9f851e

Analysis

max time kernel
139s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29/05/2024, 16:23

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General

Target

os_change_graph_22278/assets/stylesheets/vendor/bootstrap.min.css
Size

95KB
MD5

a077e551a3d41bc46a56e4b1a3e98808
SHA1

b14cc80a411c13042e01a68cdba9e7c65c743407
SHA256

f7b418cd1b8c3c5bc1c6c579692bdf15121353cbea9f63db96bcd6d914d0ce62
SHA512

dcd5bfd463c6ab90d84d064906050d80fea3d3fe4c99db9aaae9e91ea968f43b1e9c4bc9b9580c4c12f6efb2e69bf4c47bc887b3fae4b6860c19e94d05217be1
SSDEEP

768:B0R3TpxU9yqZ2hMDJXAMozUcVslfi3E3FI+p7Q6mRbca8DserbIFjCUL4PlOAys1:HbNAzzFEq+pG2mKVmsZP3IguCPxXPb

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	cmd.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000_Classes\Local Settings	cmd.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1988	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1860 wrote to memory of 1988	1860	cmd.exe	84
PID 1860 wrote to memory of 1988	1860	cmd.exe	84

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\os_change_graph_22278\assets\stylesheets\vendor\bootstrap.min.css
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\os_change_graph_22278\assets\stylesheets\vendor\bootstrap.min.css
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:1988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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