Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2024 01:51

General

  • Target

    35fdcd5e978cdfdb64c77f368d6275056d87874bb4b01c4032ba3745469d75adN.exe

  • Size

    1.7MB

  • MD5

    9cf3563c444ffe7db4ee1c4217245dc0

  • SHA1

    a69f4492cadcb2ac7d125d99b3ce3d6ec0747187

  • SHA256

    35fdcd5e978cdfdb64c77f368d6275056d87874bb4b01c4032ba3745469d75ad

  • SHA512

    b847d3136ec46dcfc6c60251abf2e6c604dede5d326e80cb3033a1127082cba06c92883488264ce195c5082f6ad0842c3f396af7b814fa12431c222c3d5c82a4

  • SSDEEP

    24576:M+9ZjQBYJ6mnedcTxsshksN9lOJDpBkjsVc2ot4+EN6VEJgH:M+Dt+shkYqJXkjsVc2ot4+EN68O

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\35fdcd5e978cdfdb64c77f368d6275056d87874bb4b01c4032ba3745469d75adN.exe
    "C:\Users\Admin\AppData\Local\Temp\35fdcd5e978cdfdb64c77f368d6275056d87874bb4b01c4032ba3745469d75adN.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:4104
    • C:\Users\Admin\AppData\Local\Temp\3582-490\35fdcd5e978cdfdb64c77f368d6275056d87874bb4b01c4032ba3745469d75adN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\35fdcd5e978cdfdb64c77f368d6275056d87874bb4b01c4032ba3745469d75adN.exe"
      2⤵
      • Executes dropped EXE
      PID:3064

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\35fdcd5e978cdfdb64c77f368d6275056d87874bb4b01c4032ba3745469d75adN.exe

    Filesize

    1.7MB

    MD5

    b805ea8fca76d3071667d5eb4a918dd0

    SHA1

    044781281ae2c3ed9965f8934c534df779f2bb07

    SHA256

    da45927c62fa727282c64e3c6d62ad1c7267a96560bded2fd4eff1ed06556118

    SHA512

    acc0490bcc3ac59585510cf19829c5918083aeb8ae5783e3ec4ab513493526e9756002eb08bea2b18f6e4c749e1f6d9cd9f6e7db8f6dc9216b7f7120df2d318c

  • memory/4104-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4104-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4104-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB