Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 21:56

General

  • Target

    39bf73b1594faf0026dc6ef1db21d0c5270a796c8e9c4064f4d0b5576dddec64.exe

  • Size

    3.3MB

  • MD5

    04c990dd821659ae674224822402f3f5

  • SHA1

    1ac8c862e30cfacce344e00ef21ee6c4517c215f

  • SHA256

    39bf73b1594faf0026dc6ef1db21d0c5270a796c8e9c4064f4d0b5576dddec64

  • SHA512

    c3002405e1c360e4b7e11d31cdffe8a8bdfffe0f53a8ab431ee669aa509e1b210414c1d36ab4277959fdcbd27479cb59e980cb11547ea7684ae5fe4d267a24f0

  • SSDEEP

    49152:RVvn8Q5CHCtE4jPTTm4uBLq9gtMyMpy7nEvVCUkULRvZuV:RF8QUitE4iLqaPWGnEvcUkUt0

Malware Config

Signatures

  • Banload

    Banload variants download malicious files, then install and execute the files.

  • Banload family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Renames multiple (226) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Modifies registry class 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39bf73b1594faf0026dc6ef1db21d0c5270a796c8e9c4064f4d0b5576dddec64.exe
    "C:\Users\Admin\AppData\Local\Temp\39bf73b1594faf0026dc6ef1db21d0c5270a796c8e9c4064f4d0b5576dddec64.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:1732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-1488793075-819845221-1497111674-1000\desktop.ini.tmp

    Filesize

    3.4MB

    MD5

    530cf1a0d4d4cd46be26f353478de0f7

    SHA1

    adcb10c471bceb757738cca9259f02ea833d7796

    SHA256

    2af2653b263b6b5e7ea3477b7437b2fe0e61559febb75a378497bded0818343b

    SHA512

    877e11d7ef45c1c995061ce0105816a053272d1c01edb4ffe7a19c421fa8275a1ec445213196e58d961943b0a268cbfd5312dd8d7e64c47c7f1b675b1c9840b2

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Office64WW.xml.tmp

    Filesize

    3.4MB

    MD5

    482450ad9d91c31a562a78bb8e0c8a33

    SHA1

    3aa183d2c953943028a4310c6d47632a774f18d1

    SHA256

    ffa1c039af8313bfa2294e03c55cbf3a0c2481cf5002807bcb787564774cfe53

    SHA512

    a3c7c74a54b9556c8503bd8a921479c9876a4f8a907e23b59c42e604fc7e2c4937dcd4960a11f3be5a6b8efb2d4458aba45d595b2478b51e23919eb41115fc97

  • memory/1732-0-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/1732-1-0x00000000030B0000-0x00000000032BC000-memory.dmp

    Filesize

    2.0MB

  • memory/1732-8-0x00000000030B0000-0x00000000032BC000-memory.dmp

    Filesize

    2.0MB

  • memory/1732-12-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/1732-11-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/1732-13-0x00000000030B0000-0x00000000032BC000-memory.dmp

    Filesize

    2.0MB

  • memory/1732-25-0x00000000030B0000-0x00000000032BC000-memory.dmp

    Filesize

    2.0MB

  • memory/1732-43-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/1732-51-0x00000000030B0000-0x00000000032BC000-memory.dmp

    Filesize

    2.0MB