Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-12-2024 19:58

General

  • Target

    2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe

  • Size

    611KB

  • MD5

    88ae8884950c1c9a6cb2f96f89eff530

  • SHA1

    4e040941074159ecab652554b7b6039a45434d23

  • SHA256

    2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4

  • SHA512

    39c0ee4e0276d00fb7ca08001182dc23e578bae8a5709cdaa6d50afd97013cccd643bd96ddab3f1c53f007d75daa9e4286be1876ae72f566545f362a0771f69b

  • SSDEEP

    12288:CB0JfiwSdYSui8zZH94I3H1v1Bg2lIj/g0k5E73Az4:CsfiTdYSuVzZH9tH1v1Bbudkl4

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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe
    "C:\Users\Admin\AppData\Local\Temp\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.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:2228
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4968
      • C:\Windows\Temp\{46FD4CA0-A0C9-4A19-9E64-BF902FDBE7E5}\.cr\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe
        "C:\Windows\Temp\{46FD4CA0-A0C9-4A19-9E64-BF902FDBE7E5}\.cr\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\3582-490\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe" -burn.filehandle.attached=688 -burn.filehandle.self=692
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4048

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\2ce0fbc6ffb1f8231c4115c4467db87143094702d8ab64e7aa85edb167be88e4N.exe

    Filesize

    570KB

    MD5

    6d902770a1a701dfcb543950deff5ee7

    SHA1

    b5f7bf7dec41f56384bbdd7d75cc57ea62557e05

    SHA256

    6e0e287e1294ef6b326e96bd3f4e6c9efd80b107dedb2601f9debd6e96f138b3

    SHA512

    18c7b01c0864d555a8cc1fce6337e4f62b245058a10b72fcea4c95712b90ea77f15d4484cb137ce5561d3f9ecd65655ed21a9ff5d0bd40d0abc8bb483807e487

  • C:\Windows\Temp\{D966A5CD-78DB-4F49-8160-60394EC0E5A9}\.ba\logo.png

    Filesize

    2KB

    MD5

    80df19f22c1d266c06ace7c8b9831762

    SHA1

    65ce850433dbd3f220a3c1dd39736315376b5a5c

    SHA256

    e8e37845754f62b6426ce39cbda1db032856bd551e6d39bbaca06aa7c44625c4

    SHA512

    5acd8ce85a9e711036cb840b0779d8cbeea0d4822e866e7def7eec6e4ec2633dca2fa295a74392fe7a4306f84cef4277d4401364253c0f8471b13e8e9c9a6a2c

  • C:\Windows\Temp\{D966A5CD-78DB-4F49-8160-60394EC0E5A9}\.ba\wixstdba.dll

    Filesize

    184KB

    MD5

    fe7e0bd53f52e6630473c31299a49fdd

    SHA1

    f706f45768bfb95f4c96dfa0be36df57aa863898

    SHA256

    2bea14d70943a42d344e09b7c9de5562fa7e109946e1c615dd584da30d06cc80

    SHA512

    feed48286b1e182996a3664f0facdf42aae3692d3d938ea004350c85764db7a0bea996dfddf7a77149c0d4b8b776fb544e8b1ce5e9944086a5b1ed6a8a239a3c

  • memory/2228-114-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2228-121-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2228-123-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB