Analysis

  • max time kernel
    96s
  • 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
    02-12-2024 22:00

General

  • Target

    6f893ff6d7e9070be04187682266a165e850b4c24f10115f08d9be10cbbcad6eN.exe

  • Size

    385KB

  • MD5

    3c52274c8ff08b0e604293af4887be60

  • SHA1

    d46f1686bbc5ce3f07ce90e5a013afd2bdbdfdef

  • SHA256

    6f893ff6d7e9070be04187682266a165e850b4c24f10115f08d9be10cbbcad6e

  • SHA512

    74b86597ece305cb59ceec6e10c697d13b13d256fbf3288923fd58b71c0a0607ad09940853e0a711c489a82f70d0c4e32aa2abce06a042e928dcdb65d0ec77b6

  • SSDEEP

    3072:sr85CFtCmmI45nh4HzGvYu8kujWF9r1jnC216WvQEhtDaMOKVpwpR28hZWftXUL2:k9/VHcujCCPkX1OKVpwp0sa5YZuc+p

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f893ff6d7e9070be04187682266a165e850b4c24f10115f08d9be10cbbcad6eN.exe
    "C:\Users\Admin\AppData\Local\Temp\6f893ff6d7e9070be04187682266a165e850b4c24f10115f08d9be10cbbcad6eN.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:4028
    • C:\Users\Admin\AppData\Local\Temp\3582-490\6f893ff6d7e9070be04187682266a165e850b4c24f10115f08d9be10cbbcad6eN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\6f893ff6d7e9070be04187682266a165e850b4c24f10115f08d9be10cbbcad6eN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1088

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\6f893ff6d7e9070be04187682266a165e850b4c24f10115f08d9be10cbbcad6eN.exe

    Filesize

    344KB

    MD5

    189ada8907ee0c7ee59022765eb93b5b

    SHA1

    5dea96df7f237fd096afab8f9566523c47753437

    SHA256

    18b6b9b631f10c5663b485e4fe7fdb297abb6a0eb8149e31234a86acb4dcb93e

    SHA512

    267e816dc2025ab5fdc832458c9c6ce737587bce90ec6411c8f2b953686b8536258a2e9968a6bf1dc02cff28b29a2930bf128f4b9fcae065f0ba05ff1aa99cc6

  • memory/4028-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4028-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4028-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB