Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    11-04-2024 21:59

General

  • Target

    6619cb6cc78d3a64331de1c0766820eb99be5d82d931fd94624cc8b730d9ac2c.exe

  • Size

    400KB

  • MD5

    96bcec387919c20cf8549146b0d03e53

  • SHA1

    999ac33790c5c76b8d7eb5ace2fc2698fd245f39

  • SHA256

    6619cb6cc78d3a64331de1c0766820eb99be5d82d931fd94624cc8b730d9ac2c

  • SHA512

    f046af8d11742de0e7f782ca7a96d67a5f9b4bfc678dd601cb6b41cc8fb95c44d3d88a3ad28bde0c37fe8ad99c1a22b84e7a09f36dfc1a033c451082f558bb45

  • SSDEEP

    6144:/9QjzhZ2opkGe6vyuTHfx/J+kvuuHcLBuiyt1M/VvoQ3mvwBVO/GuSkkN:k+66uTHJ/J+kvvcLIb1M/Bo0lBM9w

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.

  • 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 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).

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6619cb6cc78d3a64331de1c0766820eb99be5d82d931fd94624cc8b730d9ac2c.exe
    "C:\Users\Admin\AppData\Local\Temp\6619cb6cc78d3a64331de1c0766820eb99be5d82d931fd94624cc8b730d9ac2c.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\3582-490\6619cb6cc78d3a64331de1c0766820eb99be5d82d931fd94624cc8b730d9ac2c.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\6619cb6cc78d3a64331de1c0766820eb99be5d82d931fd94624cc8b730d9ac2c.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:2684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    547KB

    MD5

    c45cf2a33e9baf285a62fda59e805e86

    SHA1

    53f5f36f090e797c53107e74e03e955191d9c1a0

    SHA256

    192e54d8fb639333feb3bce452e207af7e7ec5fdcd0562f75783d72255a3c3ed

    SHA512

    0b23362c67edbb2dd500f0c6c0f4c7656afdbd159e5c9f21eb62030f341cc9f804491ed33a20bc80670497c96ecc577f8d2965ebe9499840333bfc1e0a6719ac

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\6619cb6cc78d3a64331de1c0766820eb99be5d82d931fd94624cc8b730d9ac2c.exe

    Filesize

    359KB

    MD5

    736a3cad4593c9e478cc3ea13f1fa634

    SHA1

    79fd81761920001c3394bcb1e36892fc95b1fe4a

    SHA256

    9977725432104dd5286ccfd06b485c8fdf7cbd63143ea62ea5e218e5768c6703

    SHA512

    d4a54d783a5491c24e91cc96b56748a0684342125cee3c17f85ac6f86d8148b601814159c1df52f71df874b52d5713d70aa51ba981f2dcc7fe5b07f9d068ee6d

  • memory/2156-1-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2156-85-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2156-87-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB