Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-10-2024 02:17

General

  • Target

    Pago factura_7273390_2024_I_53430000.exe

  • Size

    715KB

  • MD5

    fd34638e9b719812b6051902f4504722

  • SHA1

    55b6b198cc54de68cbdea030f60d966f92344305

  • SHA256

    ea5a8634885c44fcda935373a2d418ef8c32fedd810962b5d703f168ef69ed0b

  • SHA512

    4b5dd7b8e2ec1f1a2c77e28a601f338d766889f473dd90c2f68a5855f8b40ad08cd3412cc3cd1340a85bbad61a33fd622ba5beeb76dbec556df74c35db7375b2

  • SSDEEP

    12288:/rgjBLiIK2WVy/YqpuarhMk1+H9MC2ugcYVkwbSReUhXmmwMRzcLSIHm:/0jBiIK2R/5puatx1+dMCnPmr8XjZcWf

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Pago factura_7273390_2024_I_53430000.exe
    "C:\Users\Admin\AppData\Local\Temp\Pago factura_7273390_2024_I_53430000.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4440
    • C:\Users\Admin\AppData\Local\Temp\Pago factura_7273390_2024_I_53430000.exe
      "C:\Users\Admin\AppData\Local\Temp\Pago factura_7273390_2024_I_53430000.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1280

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsnB298.tmp\System.dll

    Filesize

    12KB

    MD5

    dd87a973e01c5d9f8e0fcc81a0af7c7a

    SHA1

    c9206ced48d1e5bc648b1d0f54cccc18bf643a14

    SHA256

    7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1

    SHA512

    4910b39b1a99622ac8b3c42f173bbe7035ac2f8d40c946468e7db7e2868a2da81ea94da453857f06f39957dd690c7f1ba498936a7aaa0039975e472376f92e8f

  • memory/1280-35-0x0000000077E01000-0x0000000077F21000-memory.dmp

    Filesize

    1.1MB

  • memory/1280-45-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/1280-28-0x0000000001660000-0x0000000002842000-memory.dmp

    Filesize

    17.9MB

  • memory/1280-46-0x0000000001660000-0x0000000002842000-memory.dmp

    Filesize

    17.9MB

  • memory/1280-17-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/1280-19-0x0000000001660000-0x0000000002842000-memory.dmp

    Filesize

    17.9MB

  • memory/1280-20-0x0000000077E88000-0x0000000077E89000-memory.dmp

    Filesize

    4KB

  • memory/1280-36-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/1280-47-0x0000000000401000-0x0000000000404000-memory.dmp

    Filesize

    12KB

  • memory/1280-42-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/1280-21-0x0000000077EA5000-0x0000000077EA6000-memory.dmp

    Filesize

    4KB

  • memory/1280-38-0x0000000000401000-0x0000000000404000-memory.dmp

    Filesize

    12KB

  • memory/1280-37-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/1280-39-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/1280-40-0x0000000000400000-0x0000000001654000-memory.dmp

    Filesize

    18.3MB

  • memory/1280-41-0x0000000000401000-0x0000000000404000-memory.dmp

    Filesize

    12KB

  • memory/4440-15-0x0000000077E01000-0x0000000077F21000-memory.dmp

    Filesize

    1.1MB

  • memory/4440-14-0x0000000003190000-0x0000000004372000-memory.dmp

    Filesize

    17.9MB

  • memory/4440-18-0x0000000003190000-0x0000000004372000-memory.dmp

    Filesize

    17.9MB

  • memory/4440-16-0x00000000752A5000-0x00000000752A6000-memory.dmp

    Filesize

    4KB