Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/12/2024, 03:02

General

  • Target

    2b6c5993c458700baa695e05edcd2500e30f450678b7d116629be38b76e65a1eN.exe

  • Size

    204KB

  • MD5

    074cb1cd03f6df6696b5b9cf896b01e0

  • SHA1

    c7d8968e7759c46bfd02e16194b787fb76bb1448

  • SHA256

    2b6c5993c458700baa695e05edcd2500e30f450678b7d116629be38b76e65a1e

  • SHA512

    1bb54f85a869715bf575f37304edb39942ccbce57c5bbab992b71b17626a02792f90e3dafd6624e4331ee082d1941c78ef4b6e7251cd11df9604088ac2328023

  • SSDEEP

    3072:sr85CqaGCbtrrE0Za9/U7hxTKbfXkdu13jB+MC2R8Fl2Z/GU7ysb5vvIfFrdEkhh:k9qaGGhZa9YTcqwB+3piM

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 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\2b6c5993c458700baa695e05edcd2500e30f450678b7d116629be38b76e65a1eN.exe
    "C:\Users\Admin\AppData\Local\Temp\2b6c5993c458700baa695e05edcd2500e30f450678b7d116629be38b76e65a1eN.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:4436
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2b6c5993c458700baa695e05edcd2500e30f450678b7d116629be38b76e65a1eN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2b6c5993c458700baa695e05edcd2500e30f450678b7d116629be38b76e65a1eN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:208

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\2b6c5993c458700baa695e05edcd2500e30f450678b7d116629be38b76e65a1eN.exe

    Filesize

    163KB

    MD5

    d26a18fe90c92bc8e5b4070ec13b95b3

    SHA1

    f62b78aa7b9fee7e91696da66581d037becde215

    SHA256

    2f3a2cd5c0fd0ab8e0d8877469eab4500b827fdc5bf350a33afc54f4a7e0fc3f

    SHA512

    b9170e1e496b32764921d00b1bf8812c073c85c5fd50817310b1d9edc63f8deefa6f7cab3c8e9cd8d5af765a5f7eda85f37e623fcff7de6df87be4d31e5c6b85

  • memory/4436-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4436-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4436-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB