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Analysis

  • max time kernel
    95s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/02/2025, 06:45

General

  • Target

    e39c3d239ffdd174e2d473bbab9b300886f02083682e3a4c1f6533d85191107aN.exe

  • Size

    1.4MB

  • MD5

    c618ea691ecba9230153075f41efffa0

  • SHA1

    879cd9d3c54692d0b71f34e67f9fc378300e6b09

  • SHA256

    e39c3d239ffdd174e2d473bbab9b300886f02083682e3a4c1f6533d85191107a

  • SHA512

    c58f2de0355ca73d89534f4a90e2c9a6bb17c1fedac204a8b62a9c3d9d6618d9ba061b575cf977d9f0c83c594f03f1bff797be9668408c6a921f707633d93717

  • SSDEEP

    24576:TT8tDS8MQ0Kat5iXnSNGVecpNrqEdf2Nat5iXnSNGVecpNrqEdf2WllO:3+S89at8nSNG/ppdfUat8nSNG/ppdf5i

Malware Config

Signatures

  • Neshta

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

  • Neshta family
  • 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.

  • 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\e39c3d239ffdd174e2d473bbab9b300886f02083682e3a4c1f6533d85191107aN.exe
    "C:\Users\Admin\AppData\Local\Temp\e39c3d239ffdd174e2d473bbab9b300886f02083682e3a4c1f6533d85191107aN.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:3116
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e39c3d239ffdd174e2d473bbab9b300886f02083682e3a4c1f6533d85191107aN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e39c3d239ffdd174e2d473bbab9b300886f02083682e3a4c1f6533d85191107aN.exe"
      2⤵
      • Executes dropped EXE
      PID:2844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

    Filesize

    2.4MB

    MD5

    d9e8a1fa55faebd36ed2342fedefbedd

    SHA1

    c25cc7f0035488de9c5df0121a09b5100e1c28e9

    SHA256

    bd7696911d75a9a35dfd125b24cb95003f1e9598592df47fa23a2568986a4a9a

    SHA512

    134644c68bd04536e9ea0a5da6e334d36b1ce8012a061fa6dabd31f85c16a1ac9eee8c40fee3d55f25c4d4edf0672de8ce204e344c800361cbcff092c09d7a33

  • C:\Users\Admin\AppData\Local\Temp\3582-490\e39c3d239ffdd174e2d473bbab9b300886f02083682e3a4c1f6533d85191107aN.exe

    Filesize

    1.3MB

    MD5

    d286e10dc85a8b1e13a20d21f1711ebb

    SHA1

    51d8f4f48a46998913176ca14eedf6b0c9bb3347

    SHA256

    258cd7ca960a0c736a2a82fbbf9a5b663a860a7a3a26ef4b3c0148e37dd4d1f7

    SHA512

    3bba4dc3569389271a4a3d925a9ffacd943e7d69894ded0bb569d6efbdd313560614d47963859c106ede6bd06c39ef492d13b2429a567ac3812b634579e06fcb

  • memory/3116-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3116-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3116-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB