Analysis

  • max time kernel
    33s
  • max time network
    34s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-12-2024 19:40

General

  • Target

    265c83e4cf1d0a49a36bd78e996e899ca3c7000e94788a158b5fb0af071fca4d.exe

  • Size

    511KB

  • MD5

    940babb30629763885dff02ff3795bce

  • SHA1

    6493ac06c2f5e6e3334d216542c8567b0c6c3228

  • SHA256

    265c83e4cf1d0a49a36bd78e996e899ca3c7000e94788a158b5fb0af071fca4d

  • SHA512

    e4ea84ffb6837ffa762be2f814a6c9d557a92401ee1f9d0b108fb3edaf2a78478ae826325fd05ac6f8cfb2c41187997e6a9ed283fb0fe902d237b94c63dcc115

  • SSDEEP

    6144:l9uY5xi183qrsq8e14z8+cUHyYnwgYvSwSXccEq9mjvJrREcrnDC:Dw1BsqdUHyOvYvSwSZEqmFvC

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 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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\265c83e4cf1d0a49a36bd78e996e899ca3c7000e94788a158b5fb0af071fca4d.exe
    "C:\Users\Admin\AppData\Local\Temp\265c83e4cf1d0a49a36bd78e996e899ca3c7000e94788a158b5fb0af071fca4d.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:1612
    • C:\Users\Admin\AppData\Local\Temp\3582-490\265c83e4cf1d0a49a36bd78e996e899ca3c7000e94788a158b5fb0af071fca4d.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\265c83e4cf1d0a49a36bd78e996e899ca3c7000e94788a158b5fb0af071fca4d.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4804

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

    568424d95b90ad4bebfd89e57c086fff

    SHA1

    c9d9bc1ac626ebdfa20fd9d75203242edff26e09

    SHA256

    c6619e71a161e7d30201c8b7f66075ce8cada6b7219b56e5b9fd988a38b2bc4d

    SHA512

    4d40f170030efae3b1f7e85b926462dc3fd86688ce757e843fcec52c720489f160503eb446a777d494403a0e3607f5ef9c7b6a66c6d2e6ced2b4ba10138c151b

  • C:\Users\Admin\AppData\Local\Temp\3582-490\265c83e4cf1d0a49a36bd78e996e899ca3c7000e94788a158b5fb0af071fca4d.exe

    Filesize

    471KB

    MD5

    c435bb9565b7094fc9136aa1db9e78d2

    SHA1

    3f03c538eae22cac64a3aea799d905f2136a7fc2

    SHA256

    f7cb6aa2af1446497f457e0932f95b7713b754cd8b8337c83a62564e6baeed6e

    SHA512

    b532894cb836f66614b2593ce27a5ee9ac26c2776a913d1f926af2e0ed4629135f745568e823917ff19ffa71ee555824b62d764ea3420b863f0c34c0f8b7f6d1

  • memory/1612-92-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/1612-93-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/1612-95-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB