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
    17-12-2024 02:18

General

  • Target

    5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe

  • Size

    133KB

  • MD5

    789bb0c5743124599f4837ff4db70e50

  • SHA1

    bfea70be2805cb3db762a7799fd7dec94cd2cdb8

  • SHA256

    5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494

  • SHA512

    ec6b02482ae7c7090cb85f27542539f35a264729a349b247b76aedb08907e6d8eb4ee21c23ece7779252eaf30dc46bca47a47fb51d6b39c4251711b5cacc0149

  • SSDEEP

    3072:zr8WDrC+c4mZx8Q8Cu1azdzOceGAOHejGk:PudZ9aaz9OcVY

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 3 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe
    "C:\Users\Admin\AppData\Local\Temp\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.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:3988
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1080
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 1572
        3⤵
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:2444

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\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe

    Filesize

    93KB

    MD5

    8c989d08b0121440f332a14b8409c6ca

    SHA1

    c7e6abf7d90c62f61dd59f79c0b6363cc763843a

    SHA256

    e5c98b591bc7518949238c4f7e22d6db5a66cfe5fe02c85194a8b45d76cf06cc

    SHA512

    e2e586f4c1b85a5d7d75f82d8a2c7c9b472e9f910433f708b01b4a39936fece5e5461a2c8af9d2af6e4073d18ad625f4e88107ece9d3d8c560f3ef3681edd452

  • memory/1080-15-0x0000000074202000-0x0000000074203000-memory.dmp

    Filesize

    4KB

  • memory/1080-16-0x0000000074200000-0x00000000747B1000-memory.dmp

    Filesize

    5.7MB

  • memory/1080-17-0x0000000074200000-0x00000000747B1000-memory.dmp

    Filesize

    5.7MB

  • memory/1080-24-0x0000000074200000-0x00000000747B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3988-108-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3988-109-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3988-111-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB