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
    19-12-2024 00:59

General

  • Target

    8952cfcc22782f480de8567227a871bf17f2fda192985b4b6528a9072df8f035N.exe

  • Size

    5.4MB

  • MD5

    0f4c6d4dd80edff4ae89f8104e4009a0

  • SHA1

    0c6258df503c28a0e26da5fcdacde8110b1f1bf1

  • SHA256

    8952cfcc22782f480de8567227a871bf17f2fda192985b4b6528a9072df8f035

  • SHA512

    c3487f4319d15ba66563cca30e3d9c491c151fb838c183e9674b6c8b73030c171be95d2b58aae58b0e9eb6e67555a458ebcbbd26bc7ac6f23c407b3cbfe752f6

  • SSDEEP

    49152:yZ9wwtKFaLUVATk4RcaTMZdwYJul2PHfuKrnNc6pMmbDpKN4ltBnQEnzbwjKZlw8:yowtroNYZ2kHtYf

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 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\8952cfcc22782f480de8567227a871bf17f2fda192985b4b6528a9072df8f035N.exe
    "C:\Users\Admin\AppData\Local\Temp\8952cfcc22782f480de8567227a871bf17f2fda192985b4b6528a9072df8f035N.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:4736
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8952cfcc22782f480de8567227a871bf17f2fda192985b4b6528a9072df8f035N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8952cfcc22782f480de8567227a871bf17f2fda192985b4b6528a9072df8f035N.exe"
      2⤵
      • Executes dropped EXE
      PID:4108

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\8952cfcc22782f480de8567227a871bf17f2fda192985b4b6528a9072df8f035N.exe

    Filesize

    5.3MB

    MD5

    ab4bb19bd4c6a24b422afbc268ed5d76

    SHA1

    21e12c39f894a00625017ee26d80796ad1df097f

    SHA256

    8e947e58ff9fd234156e5c1724de1fccc9660038980c09bba3c6800b51eaf334

    SHA512

    9a77163e93955c7d2a6174b7053fe38d3de3c5d33c0449964651f3fc13647311019f3591cce0ae8ab9077c6bad0945546c4f76a006af75cc522a181b138ba234

  • memory/4736-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4736-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4736-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB