Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2024 23:50

General

  • Target

    57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe

  • Size

    92KB

  • MD5

    0ca7b878ae19e3178bb0543b8660eee0

  • SHA1

    df6b1a4c8b9e931880ffca0349213b43f6e533db

  • SHA256

    57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07af

  • SHA512

    fbd720afd3a9f0c706899c9424d930392c2b33702db0d8e2712b623e8c35a4f1449d61426223e42775a776831b8ddda212e164532b43170321c1850ab057baf5

  • SSDEEP

    1536:JxqjQ+P04wsmJCqG7LPxqn6yHRcdTBVSjx9p2W8dF7TPxW:sr85Cn/xqn1HRk0F9p78dFfxW

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 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe
    "C:\Users\Admin\AppData\Local\Temp\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.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:1732
    • C:\Users\Admin\AppData\Local\Temp\3582-490\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe"
      2⤵
      • Executes dropped EXE
      • Modifies Internet Explorer settings
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 1272
        3⤵
          PID:1816

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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\CabA787.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\TarA8F1.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • \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\57001a93f3ccec7aa43624ca4d9bebae9a95766de37931e02a2575c3d01b07afN.exe

      Filesize

      52KB

      MD5

      58c27c5445a553802b733647c556602c

      SHA1

      cbbba9bc6b951d6e7c5f47f55822886ebc389684

      SHA256

      f257cffde8eefdc24e9a9dd3c6871621dda1ab43c4667395ece94150ef887410

      SHA512

      8148a9ea78213616483e01949412d1746a029875ec49996997becb350cd138e5cc10e88afaa2d7e1f3854128f11f0193f3ed8213919f49ca380d3e3dda57ddaf

    • memory/1732-123-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1732-125-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1736-11-0x000007FEF561E000-0x000007FEF561F000-memory.dmp

      Filesize

      4KB

    • memory/1736-12-0x000007FEF5360000-0x000007FEF5CFD000-memory.dmp

      Filesize

      9.6MB

    • memory/1736-122-0x000007FEF5360000-0x000007FEF5CFD000-memory.dmp

      Filesize

      9.6MB