Analysis

  • max time kernel
    111s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2024 05:23

General

  • Target

    c5996155efd099e8400f3cf51df74f03ccf1f24f8ff0acff0b72f9e4c377b9f7N.exe

  • Size

    3.4MB

  • MD5

    1af1959d95e0ab0dc5aab8885afe3c70

  • SHA1

    9c715ef45043b4da060373fce231bb608a276d66

  • SHA256

    c5996155efd099e8400f3cf51df74f03ccf1f24f8ff0acff0b72f9e4c377b9f7

  • SHA512

    231c0f36986cdd9543d53e6cc0d2304efed18966180e94abac2336d74f198e9ad5919f5e750ad447002e0fe7c69f07be2e1288a920062a9e4ddf0af16334fdc7

  • SSDEEP

    24576:CAJa9BWH7lL7fxqGr7d2MFvZAhkk1L5R6VU0uFviCBEN2H5r3qYNwa/DSouhbkAE:CoH7lL7Rddk4Uv1EN2TwaU9HHWHBHP

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.

  • 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 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c5996155efd099e8400f3cf51df74f03ccf1f24f8ff0acff0b72f9e4c377b9f7N.exe
    "C:\Users\Admin\AppData\Local\Temp\c5996155efd099e8400f3cf51df74f03ccf1f24f8ff0acff0b72f9e4c377b9f7N.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:2380
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c5996155efd099e8400f3cf51df74f03ccf1f24f8ff0acff0b72f9e4c377b9f7N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c5996155efd099e8400f3cf51df74f03ccf1f24f8ff0acff0b72f9e4c377b9f7N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2492
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:3032

    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\c5996155efd099e8400f3cf51df74f03ccf1f24f8ff0acff0b72f9e4c377b9f7N.exe

      Filesize

      3.3MB

      MD5

      9a8d97331fb268469cb420ffe16d72f9

      SHA1

      4689061dbb1dc0301315266d766bba6b4cd22461

      SHA256

      3ca8d5d3d798dbef57cec998b44bb611852431d738925b5cc26717618585b9bb

      SHA512

      10e0fdebd07e0f61770bafef268e63a3ca71efa169ec0de75ec09eefe35cd96ffae8f8cfdfb9b765ac27213e1fb1505f4f114ce5337de0a6a70b93002a1fd581

    • memory/2380-88-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2380-92-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2380-95-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2492-10-0x0000000000230000-0x0000000000231000-memory.dmp

      Filesize

      4KB

    • memory/2492-15-0x00000000043C0000-0x00000000043C1000-memory.dmp

      Filesize

      4KB

    • memory/2492-89-0x0000000000230000-0x0000000000231000-memory.dmp

      Filesize

      4KB

    • memory/2492-91-0x00000000043C0000-0x00000000043C1000-memory.dmp

      Filesize

      4KB

    • memory/2492-90-0x0000000000400000-0x000000000075B200-memory.dmp

      Filesize

      3.4MB