Analysis

  • max time kernel
    150s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 21:54

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 (713) 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 8 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:2408

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-3442511616-637977696-3186306149-1000\desktop.ini.tmp

    Filesize

    3.4MB

    MD5

    19bc245ca0df1fb165af32479d020632

    SHA1

    c234e1d8d6bb25c6f6ccc5eb6422e91c34d266c4

    SHA256

    0d533d84ba825c8b3aaf546d4a2e7bf563adb203b94852de97b810812c1d1294

    SHA512

    40af279c171e7149087ea7a5582a5ea5805a82b6b08514ade0b0bd03f29bafd247dcfe61d38a10671f3b5a9ece8d5fa45006b4931f4fb00b9648f7470cd281ef

  • C:\Program Files\7-Zip\7-zip.dll.tmp

    Filesize

    3.5MB

    MD5

    c99fbc019bf3da58ff16614b0ffec456

    SHA1

    5c5013094ff92f60fb19693d817c144e8d749e36

    SHA256

    39475369433e40b310586ee59131ada4f39f7811e544ae28ead2160d54379f33

    SHA512

    26dcb9d5c04a42d8334b5c3366ed0a511a626f11158595df75bc475ecb2ee9f317f2f340375b0a2bc5b4b73a903fb8d456fcef3e35a39eb0583287890a3cc5b0

  • memory/2408-0-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/2408-2-0x0000000004940000-0x0000000004B4C000-memory.dmp

    Filesize

    2.0MB

  • memory/2408-9-0x0000000004940000-0x0000000004B4C000-memory.dmp

    Filesize

    2.0MB

  • memory/2408-12-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/2408-13-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/2408-14-0x0000000004940000-0x0000000004B4C000-memory.dmp

    Filesize

    2.0MB

  • memory/2408-46-0x0000000004940000-0x0000000004B4C000-memory.dmp

    Filesize

    2.0MB

  • memory/2408-47-0x0000000004940000-0x0000000004B4C000-memory.dmp

    Filesize

    2.0MB

  • memory/2408-128-0x0000000000400000-0x0000000000616000-memory.dmp

    Filesize

    2.1MB

  • memory/2408-146-0x0000000004940000-0x0000000004B4C000-memory.dmp

    Filesize

    2.0MB