Analysis

  • max time kernel
    141s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-05-2024 22:47

General

  • Target

    666774a4e2b902695ac65bb6df884b1b9ea05349f420efde535598b0082c0cfc.exe

  • Size

    812KB

  • MD5

    2244419093017af02feb1238245db531

  • SHA1

    325e2978526f571dc4092f35af171930a0e012cc

  • SHA256

    666774a4e2b902695ac65bb6df884b1b9ea05349f420efde535598b0082c0cfc

  • SHA512

    2c8b755ef97c540b9db0f169371f00e08321ef919145f32be616d632eb13a1007924217d4cb1debf77b2af398e5b237f0059cfeec5df1e61b7046db6c5b114ac

  • SSDEEP

    24576:DR9Z2YhMPWQf50K4ZiINfFeOosNOJNNN3NNNmNNN8NNN4Mb:l9Z2YWPWQf5v4ZiINNeOosq

Malware Config

Signatures

  • 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
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\666774a4e2b902695ac65bb6df884b1b9ea05349f420efde535598b0082c0cfc.exe
    "C:\Users\Admin\AppData\Local\Temp\666774a4e2b902695ac65bb6df884b1b9ea05349f420efde535598b0082c0cfc.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3428
    • C:\Users\Admin\AppData\Local\Temp\3582-490\666774a4e2b902695ac65bb6df884b1b9ea05349f420efde535598b0082c0cfc.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\666774a4e2b902695ac65bb6df884b1b9ea05349f420efde535598b0082c0cfc.exe"
      2⤵
      • Executes dropped EXE
      PID:1420

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

    Filesize

    2.4MB

    MD5

    d9e8a1fa55faebd36ed2342fedefbedd

    SHA1

    c25cc7f0035488de9c5df0121a09b5100e1c28e9

    SHA256

    bd7696911d75a9a35dfd125b24cb95003f1e9598592df47fa23a2568986a4a9a

    SHA512

    134644c68bd04536e9ea0a5da6e334d36b1ce8012a061fa6dabd31f85c16a1ac9eee8c40fee3d55f25c4d4edf0672de8ce204e344c800361cbcff092c09d7a33

  • C:\Users\Admin\AppData\Local\Temp\3582-490\666774a4e2b902695ac65bb6df884b1b9ea05349f420efde535598b0082c0cfc.exe

    Filesize

    771KB

    MD5

    d5e7bc1813ee3727d06f1f3fb368985e

    SHA1

    138c7a772d129ef78b9c53c523568ea741de545b

    SHA256

    668ee195182b74e544a1f939f47974c15b9a97a5a50d38c47798d244eeafe941

    SHA512

    ba7b5535b875eb9ba1a4fd5666e822c781886c438d6f78f29185746b0a80ba633503b9993c065376cddeca4a5912a8a6907379e22de204b3ac5d6fea2b7bf5b5

  • memory/3428-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3428-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3428-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB