Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-11-2024 02:19

General

  • Target

    a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe

  • Size

    1.6MB

  • MD5

    ac09de5f8ff3057ba3bc002fa0c7ac24

  • SHA1

    4d09a5987078dba86b27d59c2ce6294688c887e3

  • SHA256

    a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e

  • SHA512

    fead2fb25c16e4cab2501c9fce42872ddb5e321f0b4e20361ad97f614726fe22cf8b5f494385d9fe30aef209b21f552bf5c9b275c7df49d5d50b2701c21bcc43

  • SSDEEP

    24576:R7eokafnkAwgcU+29fR4PQviXq1pj3EDT5m+m8/a:R6efnkdlUF92PGBOT3m8y

Malware Config

Signatures

  • Detect Neshta payload 5 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 System32 directory 1 IoCs
  • 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 behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe
    "C:\Users\Admin\AppData\Local\Temp\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.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:1924
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1888

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\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe

    Filesize

    1.5MB

    MD5

    cd9a95efa8cc51e7b144936c7165510b

    SHA1

    497f128eef8c3909e2e69ed158bc50ce1ae73db7

    SHA256

    849291120b86821a137e9465dab243a8e67014e81be1604d7998011df03ab256

    SHA512

    22615c4a8af7bc2e21bec363953a442a43bc33a32c2ea4731dbcecb221f464ad7050965a793c887532fa7d28ab390f278b583cde1923566f545e5ee1d0408504

  • memory/1924-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1924-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1924-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1924-103-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB