Analysis

  • max time kernel
    95s
  • max time network
    97s
  • 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 17:02

General

  • Target

    afd81f47e82572f7e5d6c65e9a3a532c777177b0aede77a6cdcdcda863d286d2N.exe

  • Size

    433KB

  • MD5

    31aef45c5ace1a55263dc6b99c27e770

  • SHA1

    23aa2e527b483adffd58fd06d620ae0cb79e96f0

  • SHA256

    afd81f47e82572f7e5d6c65e9a3a532c777177b0aede77a6cdcdcda863d286d2

  • SHA512

    e7c32dd8e1c6eda45a36519576d23e4507e4ce6bd0da4943959c222d31f465d7c04bfa1ac680be772f9988b011d5272d293a7f03bb1442c1e2974d3e48917875

  • SSDEEP

    12288:yr7rSB+2zUM2WJoROZEUT2N9oqs3Kw8q76uIx+QeW:yrazT2N9fgKw76uIxBJ

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 1 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\afd81f47e82572f7e5d6c65e9a3a532c777177b0aede77a6cdcdcda863d286d2N.exe
    "C:\Users\Admin\AppData\Local\Temp\afd81f47e82572f7e5d6c65e9a3a532c777177b0aede77a6cdcdcda863d286d2N.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:4824
    • C:\Users\Admin\AppData\Local\Temp\3582-490\afd81f47e82572f7e5d6c65e9a3a532c777177b0aede77a6cdcdcda863d286d2N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\afd81f47e82572f7e5d6c65e9a3a532c777177b0aede77a6cdcdcda863d286d2N.exe"
      2⤵
      • Executes dropped EXE
      PID:3980

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

    3dda239fe88ea5143e0956776c817287

    SHA1

    53e5d7e488b61cb2f7a914377dd23588c945b55d

    SHA256

    ca203fe27e1cc9479ba75ad539a04ac0fe6c0018829b8dbd8a6f208a99c7d9da

    SHA512

    de4701f3dab11eb77883ed4eecb4e7808c05a84175c8d560b69d73f0f131a1ae85132bea37bda70a51bc75a61ac22cbf1f078b30875b719be0ec8b760c3a8a96

  • C:\Users\Admin\AppData\Local\Temp\3582-490\afd81f47e82572f7e5d6c65e9a3a532c777177b0aede77a6cdcdcda863d286d2N.exe

    Filesize

    392KB

    MD5

    dae993327723122c9288504a62e9f082

    SHA1

    153427b6b0a5628360472f9ab0855a8a93855f57

    SHA256

    38903dec79d41abda6fb7750b48a31ffca418b3eab19395a0a5d75d8a9204ee7

    SHA512

    517fc9eaf5bf193e984eee4b739b62df280d39cd7b6749bec61d85087cc36bb942b1ebaed73e4a4a6e9fa3c85a162f7214d41ea25b862a4cf853e1129c10293d

  • memory/4824-94-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4824-95-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4824-97-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB