Analysis

  • max time kernel
    94s
  • 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
    19-12-2024 06:06

General

  • Target

    88e8e3f3c55f54c6f1550965708c49ccbc3e69b7aeeff3fc1b0c27b63b14a539N.exe

  • Size

    3.2MB

  • MD5

    c6afbbcd26162a388e63cc3d5c010c10

  • SHA1

    5614bc2fcb1ac46da7a33b4dbf3d6351a92c6930

  • SHA256

    88e8e3f3c55f54c6f1550965708c49ccbc3e69b7aeeff3fc1b0c27b63b14a539

  • SHA512

    5dfedc24b7e640811e09fa27f220054648a9fa6829e7d96e1fd58771aff6491100de2337f3703c6c2b8dca4b4eccbe49b9e81a8f27643518d12a1c5717cf578e

  • SSDEEP

    49152:aShHaVYNjEv3hIUPl1v01s3boMWfOEp9/l0j5NYcVtcht/P5p8gQ:aSkYkRIk7gMDEpb00Ctyn5p8gQ

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 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 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 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88e8e3f3c55f54c6f1550965708c49ccbc3e69b7aeeff3fc1b0c27b63b14a539N.exe
    "C:\Users\Admin\AppData\Local\Temp\88e8e3f3c55f54c6f1550965708c49ccbc3e69b7aeeff3fc1b0c27b63b14a539N.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3480
    • C:\Users\Admin\AppData\Local\Temp\3582-490\88e8e3f3c55f54c6f1550965708c49ccbc3e69b7aeeff3fc1b0c27b63b14a539N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\88e8e3f3c55f54c6f1550965708c49ccbc3e69b7aeeff3fc1b0c27b63b14a539N.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:3168

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\88e8e3f3c55f54c6f1550965708c49ccbc3e69b7aeeff3fc1b0c27b63b14a539N.exe

    Filesize

    3.1MB

    MD5

    02f554541e0036d6fd7bf2d333b7f0bf

    SHA1

    6a3f2d00bae392b184c7932f4e394b445ea8223c

    SHA256

    f822d5ee04cb5afb6c9ddf0a760c50196fb5e3b7221a665ac1329988f6565856

    SHA512

    53082de34cbf94ce9bc168dcee968f39abb00b88b4f99e327ab03113c508ffb1514b757f86e5bc4e2d3e0b577f9915e5b4675b7b3f154c1ec83565bd4eb69dcc

  • memory/3168-13-0x00007FFF89590000-0x00007FFF89592000-memory.dmp

    Filesize

    8KB

  • memory/3168-12-0x00007FF65C380000-0x00007FF65CC2C000-memory.dmp

    Filesize

    8.7MB

  • memory/3168-15-0x00007FF65C380000-0x00007FF65CC2C000-memory.dmp

    Filesize

    8.7MB

  • memory/3168-14-0x00007FF65C380000-0x00007FF65CC2C000-memory.dmp

    Filesize

    8.7MB

  • memory/3168-17-0x00007FF65C380000-0x00007FF65CC2C000-memory.dmp

    Filesize

    8.7MB

  • memory/3480-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3480-102-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3480-104-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB