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
    26-11-2024 09:18

General

  • Target

    2c4bc83403c7de57d8d0da00fa55d73f8f19c521a0a7245be15172098b094cd0N.exe

  • Size

    240KB

  • MD5

    fc7a51c4ac8d7cb81a833b90a699c3f0

  • SHA1

    266323b6fad483b8bda8348e225a4f8c899cf996

  • SHA256

    2c4bc83403c7de57d8d0da00fa55d73f8f19c521a0a7245be15172098b094cd0

  • SHA512

    2ab2294bc444a684bc41fa9d2317a1ac164ffc506230e34d9cb9b1ef0b1cfdb9cc33870911043a8aa69dc3dcc35ec1d71de2e3dab917abd25dd8bdcecf370024

  • SSDEEP

    3072:sr85CwzK8Ezz4MBIvQAkb0gVPrmeo90o8sr8QCJIg43a/LVdJyh:k9wjEzzrBIO08QxgVdC

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 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 2 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c4bc83403c7de57d8d0da00fa55d73f8f19c521a0a7245be15172098b094cd0N.exe
    "C:\Users\Admin\AppData\Local\Temp\2c4bc83403c7de57d8d0da00fa55d73f8f19c521a0a7245be15172098b094cd0N.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:2056
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2c4bc83403c7de57d8d0da00fa55d73f8f19c521a0a7245be15172098b094cd0N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2c4bc83403c7de57d8d0da00fa55d73f8f19c521a0a7245be15172098b094cd0N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4524

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\2c4bc83403c7de57d8d0da00fa55d73f8f19c521a0a7245be15172098b094cd0N.exe

    Filesize

    200KB

    MD5

    0f05b8d33330c2eb5fd850d1c9b0b567

    SHA1

    5324c96bed58fe1446c049b4ca4f47a0ad8e949c

    SHA256

    23aaf740c22e89f7f40064db0caa6812bb09602258d318fbf003f3c65029297f

    SHA512

    b8e6cba1ac3960c9e8ac2b10ec3eb9ec1062f8357532e0768d81e31c14a393210af92411cb7cddc8c883de1904b106bbaab352a78b7c1388b9cdd1c05f6eb7c0

  • memory/2056-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2056-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2056-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4524-12-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/4524-96-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB