Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2024 17:51

General

  • Target

    c0508293393fcfb7b6130496529949d0N.exe

  • Size

    861KB

  • MD5

    c0508293393fcfb7b6130496529949d0

  • SHA1

    73cc0ea2b561a4595c0bd50aa06f0fd5f558302d

  • SHA256

    dd89638e546cee80a4a9d79f2bd9d95b40f1e8a7287c6a1588f37dc03fbba209

  • SHA512

    ab601bf8d9237b749f4a98b1141847abc62376dc513099103e0593f870b32215ed7cbb3d0cf1f42080887f7eff0b05325a9f0a48ea53ebd338531c01734a9647

  • SSDEEP

    24576:lgtWbukVkCttUrAourd7x57/0vkckug3yu1x:IWbuSvloo57/Gnhi

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.

  • 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).

  • 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\c0508293393fcfb7b6130496529949d0N.exe
    "C:\Users\Admin\AppData\Local\Temp\c0508293393fcfb7b6130496529949d0N.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:4320
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c0508293393fcfb7b6130496529949d0N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c0508293393fcfb7b6130496529949d0N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3208

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\c0508293393fcfb7b6130496529949d0N.exe

    Filesize

    820KB

    MD5

    5ea8af1688457dc83d05baa636b8d46a

    SHA1

    a59ec34da3a055697dbbb2c0e344875d95998edb

    SHA256

    1892311043c2585c4b39f730923a7876351251549be9d6dd7891b38a161532e5

    SHA512

    e4ced38a0f933bb98eace8764152be3c73ea52392e5afc73eff46651183bd923133488c1ce3d9ae4142f1352213f4dda9cca56695276ec8ed3373ab4b88a0d39

  • memory/4320-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4320-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4320-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB