031bdb9c0a1b9f05d3916d6ef18f9e85446c5aa903040df3a6d0c773014770c3

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
13/11/2026, 12:15

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General

Target
HFkiller_full/ps/Certificate.format.ps1xml
Size 12KB
Sample261113-pexnpsbt4v
SHA256 031bdb9c0a1b9f05d3916d6ef18f9e85446c5aa903040df3a6d0c773014770c3
MD5 e6fa887396e50f1f398dc6612fb60a3e
SHA1 23f12de672616abb861d5eeebf0a203c831aee94
SHA512 412a4aa02ddaa131fcaba54d1545b84d7a9d7b7b589758b63c04733eb1d32f967e0c8864bb66ac2b8ba106422a364cb2c1ac86394c0b55cf1b8310343968d6bb
SSDEEP 192:XyHd6BFjItaCXqbxWBvE/kImGIR2//+K/:XmKFS2xAmkImGIR2/+K/
TLSH
T1E5427B4AD2E07FF019B1452AFBA9A5D5DE14930F086B2650F2DC7B0B2FB9CA54133636
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

execution ransomware

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-1-5-21-895009113-1202185046-1686627690-1000\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

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3720	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000_Classes\Local Settings	cmd.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3580	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 3580	3720	cmd.exe	84

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\HFkiller_full\ps\Certificate.format.ps1xml
1⤵
- Checks computer location settings
- Executes a command shell one-liner
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\HFkiller_full\ps\Certificate.format.ps1xml
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:3580

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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 v16

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