Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    10-12-2024 10:12

General

  • Target

    d2137f1a7193cb641e8e5c7aa4868cfc407a4223a02b9a17f2ae022e0590f336N.exe

  • Size

    2.6MB

  • MD5

    73e9bbedaee94680352a049c7c6ce910

  • SHA1

    04c3027f8b7edec02b92add367f1f52779e5eb1f

  • SHA256

    d2137f1a7193cb641e8e5c7aa4868cfc407a4223a02b9a17f2ae022e0590f336

  • SHA512

    0e56b9988c555fc1fa8acfe8335dd282d134ef5f35d54f14a3ab2c1c380958171b5d4bd901b195d7e482d3b3c0ac2f4fa7ff90b7db100fb8b52567dbf323001b

  • SSDEEP

    24576:4M24baeG2GcVfsW2tJ93Rg8yAUgUe16vLix:4maeGjVDj/mLM

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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d2137f1a7193cb641e8e5c7aa4868cfc407a4223a02b9a17f2ae022e0590f336N.exe
    "C:\Users\Admin\AppData\Local\Temp\d2137f1a7193cb641e8e5c7aa4868cfc407a4223a02b9a17f2ae022e0590f336N.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:2196
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d2137f1a7193cb641e8e5c7aa4868cfc407a4223a02b9a17f2ae022e0590f336N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d2137f1a7193cb641e8e5c7aa4868cfc407a4223a02b9a17f2ae022e0590f336N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2816
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 376
        3⤵
          PID:2800

    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

    • \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\d2137f1a7193cb641e8e5c7aa4868cfc407a4223a02b9a17f2ae022e0590f336N.exe

      Filesize

      2.6MB

      MD5

      9cd17b808ea08be836af49fa98747989

      SHA1

      a96bf53be782f053e077129e491404120a2cb172

      SHA256

      381468c5cf17bf2de27dc4dd2c122632e271aeebd8446df583b7323d90f3d4f7

      SHA512

      6135e60f0e23210c804326ea9d5ba512e6fe3b14b963e5b291efa102111a3e09e09812b0f33fab8af495e555c83992d5acfbea536297f8355617de175406286c

    • memory/2196-91-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2196-93-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2800-17-0x0000000000460000-0x0000000000461000-memory.dmp

      Filesize

      4KB

    • memory/2816-14-0x000007FEF602E000-0x000007FEF602F000-memory.dmp

      Filesize

      4KB

    • memory/2816-16-0x000007FEF5D70000-0x000007FEF670D000-memory.dmp

      Filesize

      9.6MB

    • memory/2816-15-0x000007FEF5D70000-0x000007FEF670D000-memory.dmp

      Filesize

      9.6MB

    • memory/2816-90-0x000007FEF5D70000-0x000007FEF670D000-memory.dmp

      Filesize

      9.6MB