Analysis

  • max time kernel
    19s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2025 09:15

General

  • Target

    e01752d89942b383db894b526a2c871c607ca41f8d998a05b1f45c8b5dd9da12N.exe

  • Size

    100KB

  • MD5

    5e5b7eec5ce08e070a8f6828bdc87080

  • SHA1

    5f6cf18e7c4c2f9d3e44b131f094b282745328a0

  • SHA256

    e01752d89942b383db894b526a2c871c607ca41f8d998a05b1f45c8b5dd9da12

  • SHA512

    9496b5bacfae24a72078558bbd1a01c0a2bf704f597920f1406da719c3475a35d1cc2d5c58218b15ca35d503a69dc000c05b565a1b88d19804d0fe818a2910d2

  • SSDEEP

    1536:JxqjQ+P04wsmJCdgdoH/jsjuR9DfIcfnUfK/C5cr+nNXjkVWN:sr85CdgdoHryd4U0CWSNXw4N

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e01752d89942b383db894b526a2c871c607ca41f8d998a05b1f45c8b5dd9da12N.exe
    "C:\Users\Admin\AppData\Local\Temp\e01752d89942b383db894b526a2c871c607ca41f8d998a05b1f45c8b5dd9da12N.exe"
    1⤵
    • Loads dropped DLL
    • 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:1032
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e01752d89942b383db894b526a2c871c607ca41f8d998a05b1f45c8b5dd9da12N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e01752d89942b383db894b526a2c871c607ca41f8d998a05b1f45c8b5dd9da12N.exe"
      2⤵
      • Executes dropped EXE
      PID:2128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\3582-490\e01752d89942b383db894b526a2c871c607ca41f8d998a05b1f45c8b5dd9da12N.exe

    Filesize

    59KB

    MD5

    58c1f13ac6aa28c3b174455541f3d8d8

    SHA1

    385b312899e98bb58118c101ee337c00e6f0856c

    SHA256

    98b14e09744ab2b594766d461f67c09e54f089cd5b76152f1628b7b29f95fc7a

    SHA512

    2085bc428b66bb8f5d0389ed2155f584fee631f300c02a0defd19b1c4d97b321a8525ceb381c9ea62869300a3335167520e64211e901212396e290e5f790be4d

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/1032-82-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1032-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB