Analysis

  • max time kernel
    23s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 20:24

General

  • Target

    244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988N.exe

  • Size

    896KB

  • MD5

    05b99a1ef9fb248949fa80cf253a34b0

  • SHA1

    4691ec912141bbf5fba4a87ec6e572c12528313e

  • SHA256

    244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988

  • SHA512

    16ebc4f2646ec9cf73e3b83f914ca3da9d81ff2bd725fcb0eab32271248662b49bed4ea030d2b6e238bd22763b6e8ec21f6f913dbb77d9677b458e400cb2ae66

  • SSDEEP

    24576:pWpI2jFM5sFzfTpiaGlN5WUG16CU3nMA5o:+jBbTpia25W/7UXMA5o

Malware Config

Signatures

  • 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 2 IoCs
  • Loads dropped DLL 4 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 3 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 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988N.exe
    "C:\Users\Admin\AppData\Local\Temp\244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988N.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:2428
    • C:\Users\Admin\AppData\Local\Temp\3582-490\244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2632
      • C:\Windows\Temp\{338C89FB-6095-4E06-8555-40F86473D6EC}\.cr\244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988N.exe
        "C:\Windows\Temp\{338C89FB-6095-4E06-8555-40F86473D6EC}\.cr\244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988N.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\3582-490\244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988N.exe" -burn.filehandle.attached=180 -burn.filehandle.self=188
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    547KB

    MD5

    d30b36247185a670852f45098eb9a8e6

    SHA1

    f37447d3b870174444e0834bd13629fc9804e6f2

    SHA256

    e57de7cf83c9f5dc4810d748b3907f65f2909eb6391c140ed0b049c452f7d270

    SHA512

    d1100b0403e95b035e66841db8a64a710a5f7f1b984f51089259468a21ef7696d65e7a3e84b2f774b000c8016eead784810b336455fc9cd7b6663ebf9abb433b

  • C:\Windows\Temp\{BD533FE5-B523-4A91-BCD0-AD1D2FA1DB5A}\.ba\SideBar.png

    Filesize

    50KB

    MD5

    888eb713a0095756252058c9727e088a

    SHA1

    c14f69f2bef6bc3e2162b4dd78e9df702d94cdb4

    SHA256

    79434bd1368f47f08acf6db66638531d386bf15166d78d9bfea4da164c079067

    SHA512

    7c59f4ada242b19c2299b6789a65a1f34565fed78730c22c904db16a9872fe6a07035c6d46a64ee94501fbcd96de586a8a5303ca22f33da357d455c014820ca0

  • \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\244c423b64eb6493d13a288e1e4c54e58a13205d97aa24960b9be1b91efd3988N.exe

    Filesize

    855KB

    MD5

    7711c60d5db60b1dfd6660016cf02d6f

    SHA1

    6b38524ee7961e9bd224c75ead54449c0d77bb12

    SHA256

    f13fda5a87d010e15eb167e5dcaec27121e4427ae9c8c9991db95ed5fe36de1b

    SHA512

    55aac69297dd5a19d8a78e0e36ce6be23d940d26ac4831e1db09c9aa5b43243158b8f2b24df4a2638b98442c305b0bd1547d8c597c8339e5938e73417820ac37

  • \Windows\Temp\{BD533FE5-B523-4A91-BCD0-AD1D2FA1DB5A}\.ba\PythonBA.dll

    Filesize

    671KB

    MD5

    5d8fa952950469a8904e4f68ac193699

    SHA1

    ce9f68fb9601b9a5b95fc93c88a3a22ed42afa3d

    SHA256

    ca7527124a97079c229332867bd27fede3eb263a52639b4bdaf39ed47e604e57

    SHA512

    58c43a813ff9f5bebe2928e68b7f28f999922248ccc6e8cf6ce5f14baf6aa42b9b8e59fe9b638c5376e7e4e86fe21eae185fd51328b7b000bbe6903794e161b4

  • memory/2428-147-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2428-149-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB