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
    12/10/2024, 02:30

General

  • Target

    25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe

  • Size

    7.4MB

  • MD5

    4aff8bb1e4ed6d52d533cfc761f0c070

  • SHA1

    1c25f87f7efb6a4dd063a5bdfa04de5893d8d1b0

  • SHA256

    25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13

  • SHA512

    3b653355f0898d58e32f1e39fa57781b3e82be012ad95fb7261da140e1beea4c7f8d672d70542e8f504c68f52dabcfacb5285b040df649c6d5687aa651d8712a

  • SSDEEP

    196608:EDdHC6EvxNonU3jt4LYPagzq8QQwzx1dCsCE:DxDoUTtnPaIwlGQ

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 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 2 IoCs

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

  • NSIS installer 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe
    "C:\Users\Admin\AppData\Local\Temp\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.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:4412
    • C:\Users\Admin\AppData\Local\Temp\3582-490\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4144

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\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe

    Filesize

    7.4MB

    MD5

    5714dea75f88cc79a97cbc96a66fa829

    SHA1

    1c24971bdec438adbf863e00805aeb8b2f76f59c

    SHA256

    fb74e024b195c7a1a8a751b368b8d909392e0fffd5dac98982759eb4c01b8c5f

    SHA512

    630bbce41ba5ae93720a247b1cac1c7d114e710599d6917ce6f64facc33de73e97fe7b8b480bfec72508ad2a0fc30e05ee32a199ee9dd86900fd9cb9e96dd5f4

  • C:\Users\Admin\AppData\Local\Temp\nslBAC5.tmp\InstallOptions.dll

    Filesize

    14KB

    MD5

    325b008aec81e5aaa57096f05d4212b5

    SHA1

    27a2d89747a20305b6518438eff5b9f57f7df5c3

    SHA256

    c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

    SHA512

    18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

  • C:\Users\Admin\AppData\Local\Temp\nslBAC5.tmp\KillProcDLL.dll

    Filesize

    32KB

    MD5

    83142eac84475f4ca889c73f10d9c179

    SHA1

    dbe43c0de8ef881466bd74861b2e5b17598b5ce8

    SHA256

    ae2f1658656e554f37e6eac896475a3862841a18ffc6fad2754e2d3525770729

    SHA512

    1c66eab21f0c9e0b99ecc3844516a6978f52e0c7f489405a427532ecbe78947c37dac5b4c8b722cc8bc1edfb74ba4824519d56099e587e754e5c668701e83bd1

  • C:\Users\Admin\AppData\Local\Temp\nslBAC5.tmp\UAC.dll

    Filesize

    13KB

    MD5

    431e5b960aa15af5d153bae6ba6b7e87

    SHA1

    e090c90be02e0bafe5f3d884c0525d8f87b3db40

    SHA256

    a6d956f28c32e8aa2ab2df13ef52637e23113fab41225031e7a3d47390a6cf13

    SHA512

    f1526c7e4d0fce8ab378e43e89aafb1d7e9d57ef5324501e804091e99331dd2544912181d6d4a07d30416fe17c892867c593aee623834935e11c7bb385c6a0a8

  • C:\Users\Admin\AppData\Local\Temp\nslBAC5.tmp\ioSpecial.ini

    Filesize

    554B

    MD5

    7f5d2aadb1a9fee971f142aed16c1542

    SHA1

    03f5c00889c829c6fa0681c46174201b34272de3

    SHA256

    c81fb882df7eaa298cee5807d4d0ab6242c18f44a9ca6a36bf100234e6d5ab3b

    SHA512

    4856500383af5f6e389a298b152fa122098e4e2fb27ca268e2cc0aef0845d8b08eec582ab6ffd617b632f8d355500ec1d0949a38c41a76ca406c8a8387c77bc1

  • C:\Users\Admin\AppData\Local\Temp\nslBAC5.tmp\ioSpecial.ini

    Filesize

    593B

    MD5

    91a108aa647d1e5e042f788e28eeb660

    SHA1

    ce1df805ca1bea09a55eb57555ea2e39db0aa9af

    SHA256

    28c6927d3d6775b4acbb331b58819bba7b51cf14d111141a1e1c3dab676562bc

    SHA512

    52b49e32b40ecb8151c87d487b030ae928be024b531c89b8361bc696e37db1e48400b9bef115ad44fd2f2a29e8625c41e7f84fb26cfcee0a88d72d24dee1c17d

  • memory/4412-185-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4412-186-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4412-188-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB