Analysis

  • max time kernel
    16s
  • max time network
    21s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/12/2024, 00:51

General

  • Target

    75c5ad7cb9aa07f80a93877021cafbfc3d7b10a9b3e7658d4e4f35c4d814d1b2N.exe

  • Size

    289KB

  • MD5

    a85dfed9d23c7b571768a191b25fa630

  • SHA1

    5e85b83a7aa6258cf50203dbbc727f60e0cf132a

  • SHA256

    75c5ad7cb9aa07f80a93877021cafbfc3d7b10a9b3e7658d4e4f35c4d814d1b2

  • SHA512

    176807080984065557f47365c5c9ef814e53dd79ba5dd2e18cc89dfef198f2f741d808bd7b3264317d13bdc5cb925228aa1f6d771ed9edcfda3d25516cc0c3de

  • SSDEEP

    6144:k9FCc8o7/XhMPMInVQQU7keNTAH/n+nIrjr7Aep:Mj8kOMInsep

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 3 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\75c5ad7cb9aa07f80a93877021cafbfc3d7b10a9b3e7658d4e4f35c4d814d1b2N.exe
    "C:\Users\Admin\AppData\Local\Temp\75c5ad7cb9aa07f80a93877021cafbfc3d7b10a9b3e7658d4e4f35c4d814d1b2N.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:2248
    • C:\Users\Admin\AppData\Local\Temp\3582-490\75c5ad7cb9aa07f80a93877021cafbfc3d7b10a9b3e7658d4e4f35c4d814d1b2N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\75c5ad7cb9aa07f80a93877021cafbfc3d7b10a9b3e7658d4e4f35c4d814d1b2N.exe"
      2⤵
      • Executes dropped EXE
      PID:3044

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\75c5ad7cb9aa07f80a93877021cafbfc3d7b10a9b3e7658d4e4f35c4d814d1b2N.exe

          Filesize

          249KB

          MD5

          8a1ba929aeabae64a5c19e3374df7e3e

          SHA1

          3f0383f65ded0388b463ed684ae96d23e1449f67

          SHA256

          6895f3782962706dc71e1708511e87d6eb6ed5844da253729f13ace5b2edd82d

          SHA512

          895d8d83ebca4827bc7e6a00886c073ec758fb98418e485fd2f98fedbcb7fcd877fa9aebe1caa8c4c995e3b9e8bbb02974a9d4e8b8f46513eac2bb9701bd827d

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

          Filesize

          252KB

          MD5

          9e2b9928c89a9d0da1d3e8f4bd96afa7

          SHA1

          ec66cda99f44b62470c6930e5afda061579cde35

          SHA256

          8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

          SHA512

          2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

        • memory/2248-85-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/2248-87-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB