Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 07:21

General

  • Target

    444cd1b625ec2082b11f1332b00c913ae296285b53136cfdcd39a0b6373bebabN.exe

  • Size

    1.3MB

  • MD5

    7553e59873d6efc7f55e4cafde0e1780

  • SHA1

    330c2fb4fa6597430d8bf7e7a61dacb242ec51ac

  • SHA256

    444cd1b625ec2082b11f1332b00c913ae296285b53136cfdcd39a0b6373bebab

  • SHA512

    a9fdf44622fe20e3c4e327898d994770afc4d6c36e35e532f617792f7803824962c545b37b901d80ff8b10b85f037a6bf47eb5f25fa40def77aa6a3deb33ec7a

  • SSDEEP

    24576:qJZN4HEZOq6RLwHhao3L97wzxfldrV0/oDce5FmlssnQL:quHrV0/o5FmlssE

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\444cd1b625ec2082b11f1332b00c913ae296285b53136cfdcd39a0b6373bebabN.exe
    "C:\Users\Admin\AppData\Local\Temp\444cd1b625ec2082b11f1332b00c913ae296285b53136cfdcd39a0b6373bebabN.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:4480
    • C:\Users\Admin\AppData\Local\Temp\3582-490\444cd1b625ec2082b11f1332b00c913ae296285b53136cfdcd39a0b6373bebabN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\444cd1b625ec2082b11f1332b00c913ae296285b53136cfdcd39a0b6373bebabN.exe"
      2⤵
      • Executes dropped EXE
      PID:3500

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\444cd1b625ec2082b11f1332b00c913ae296285b53136cfdcd39a0b6373bebabN.exe

    Filesize

    1.3MB

    MD5

    a0237a55c77eb09a6f66f68d030c3e3a

    SHA1

    89a9287c7022024763e0b499b9e7fd5be2d06229

    SHA256

    b8fa34470f342a92c6aa5b2d38fef795937e55bc90775e7412c193f9fccfa3df

    SHA512

    bb2b90cfec29913b5bf2712f908bec411bdab8286158271fc66237edf7b3908648fab0a36914e3ae2100aa500fae226aad31ccceb6c8efadc415a83633a4040a

  • memory/3500-12-0x00007FFEFB173000-0x00007FFEFB175000-memory.dmp

    Filesize

    8KB

  • memory/3500-13-0x000001EB3E330000-0x000001EB3E482000-memory.dmp

    Filesize

    1.3MB

  • memory/4480-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4480-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4480-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB