Analysis

  • max time kernel
    91s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 14:40

General

  • Target

    AEAT-Notificación.exe

  • Size

    366KB

  • MD5

    46d5b17e38ecafc98267ffb220334933

  • SHA1

    a11e130bbe93b1538d4a06636d3e58fd99c78476

  • SHA256

    a0acb7a34133bc71e5c013329075eeb4cfeb638621e81bdbd63ffde25cf5330a

  • SHA512

    7599c00f44e44ee987f5ac37c2142c0884271058cb55f1eff568f47e01179cf009bb3bbe4321feb4f6b271f66684724339859e5d977ffe14e889582e049490f4

  • SSDEEP

    6144:BNeZK/Pji5+6EIo/rBllsSkfT1BCkkHrBrbeBtW9a0k12Kg1KkLe8ool:BNCEI4VsSkfxBLItbePWD/L

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

Processes

  • C:\Users\Admin\AppData\Local\Temp\AEAT-Notificación.exe
    "C:\Users\Admin\AppData\Local\Temp\AEAT-Notificación.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    PID:4884

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsfBCAE.tmp\System.dll
    Filesize

    12KB

    MD5

    cff85c549d536f651d4fb8387f1976f2

    SHA1

    d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

    SHA256

    8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

    SHA512

    531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

  • memory/4884-133-0x00000000049D0000-0x0000000004AD1000-memory.dmp
    Filesize

    1.0MB

  • memory/4884-134-0x00000000049D0000-0x0000000004AD1000-memory.dmp
    Filesize

    1.0MB