Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2024 16:28

General

  • Target

    72696670a50f2b42804a3284d586b458cb4a32850dd94314b0880f65eebe4731N.exe

  • Size

    146KB

  • MD5

    374584f8f8f0008943a0ba70440897d0

  • SHA1

    5cc22fe973271ea1d150c4f0d7bbfecfd9a29c03

  • SHA256

    72696670a50f2b42804a3284d586b458cb4a32850dd94314b0880f65eebe4731

  • SHA512

    e9724da3281a096fbfd3b7f971f4c861d6ab9e02b1885b9a3d04e3b04fdd1740ed5280f3a1e012465ec2e709e2df942ce2b4bab34df8a9117b3c453bd50adf96

  • SSDEEP

    3072:sr85CkkbAYn2GgYlBYN2fHYTo+nFt8wDSRUTT:k9xbAMpgY3gTP8DRUTT

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\72696670a50f2b42804a3284d586b458cb4a32850dd94314b0880f65eebe4731N.exe
    "C:\Users\Admin\AppData\Local\Temp\72696670a50f2b42804a3284d586b458cb4a32850dd94314b0880f65eebe4731N.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:748
    • C:\Users\Admin\AppData\Local\Temp\3582-490\72696670a50f2b42804a3284d586b458cb4a32850dd94314b0880f65eebe4731N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\72696670a50f2b42804a3284d586b458cb4a32850dd94314b0880f65eebe4731N.exe"
      2⤵
      • Executes dropped EXE
      PID:4448

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\72696670a50f2b42804a3284d586b458cb4a32850dd94314b0880f65eebe4731N.exe

    Filesize

    105KB

    MD5

    c088a7e395014bae88099ce4b09251de

    SHA1

    3a58eb934a7451262af3541f38f5a49de03fbe25

    SHA256

    8ccb6944de0a0626298ef4ddeb3cfb3d36e2aeaeaf7468536ed39c30c5602758

    SHA512

    4735876e327db850c70fff40bff1b5a641b03688f9546f2c0aae05c1637a002a517023022967a6b571c516d045f2c4e507a64d595a45abe6deeafff81c95e37e

  • memory/748-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/748-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/748-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB