Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    19-12-2024 10:42

General

  • Target

    6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe

  • Size

    1.2MB

  • MD5

    4543fe98357607293f23921e41325c60

  • SHA1

    0a8a0b5f36f2a702ccc8a78b45513bb7c113780a

  • SHA256

    6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77

  • SHA512

    7f5db515b82fcf7ce621b924e0275bff8efa32e40f4022b57ea1cc642809b5c3e8d7a9bb87e463b1b648c0065cc5e93e289cccf11804314544f72910c82c29e9

  • SSDEEP

    24576:yVN4kkKF3hDXq8xeidJLvkU99kkkkJE58dlX3IiAtp3Nq3E/HoQYx96uYxyxS:yT90guMXEdqwHkUj

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 2 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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe
    "C:\Users\Admin\AppData\Local\Temp\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.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:2480
    • C:\Users\Admin\AppData\Local\Temp\3582-490\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2528

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

  • \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\6af7db666ebb3125515324d137340e3f47edaae62f4e951e04d476a7997e7f77N.exe

    Filesize

    1.1MB

    MD5

    a7415ecc8b83f826913405b227084f24

    SHA1

    eaf43b70268e5c57c673503d8dfc39ac6cc4bf83

    SHA256

    e996c52b6f325072f1e30e521104d4fcafb800debc1eeb73bd7ac56fdb2ad531

    SHA512

    d60adb25c50161ec4cc57cf3f7b9900ab0fbcd6bb5009df1906da7421e9523468a4dfbda6f5580a4f03197b252c1673115f8d622dadc448630d4d398d96aec63

  • memory/2480-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2480-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2528-8-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2528-85-0x0000000000400000-0x000000000052B000-memory.dmp

    Filesize

    1.2MB