Analysis

  • max time kernel
    93s
  • 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
    08-12-2024 02:53

General

  • Target

    2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe

  • Size

    176KB

  • MD5

    534e169417d2acf75512319cd0fcea80

  • SHA1

    85271d67f8bf1ef00eca9670c7eee39078a01968

  • SHA256

    2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4

  • SHA512

    dd0b02f19edbefacc2eb8fb9eed11ed161a04ad0315c73c1d0e28387b05d1188ff0119d6625fd8a087b108424c0802c09f2b6b36e36ef16343edd75a30e71193

  • SSDEEP

    3072:sr85CU7kc39wfHYTo7RobLh1JFWQaP1p84r85C:k9LdgTcobd1JFW11p8Y9

Malware Config

Signatures

  • Detect Neshta payload 5 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).

  • Program crash 1 IoCs
  • 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\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe
    "C:\Users\Admin\AppData\Local\Temp\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.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:1696
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3640
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 268
        3⤵
        • Program crash
        PID:1964
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3640 -ip 3640
    1⤵
      PID:3412

    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\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe

      Filesize

      136KB

      MD5

      cc00cd653b6b74c4f2a96ac74e5eaa27

      SHA1

      4e2f5e29d8e125f4e0d14d76978830dc216aa95b

      SHA256

      ae37c5601e5d14969c3213fc27c55cb247e1f5451f2181eb21bb41bc83149508

      SHA512

      6da96da5a927d5be1f984efd903978efe34f668a810b858f2e9e2573818f27066c00aa439b350d6965f3cb95f8758030a846f8e5860407a0c330631dde056394

    • memory/1696-92-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1696-93-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1696-94-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1696-96-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB