Analysis

  • max time kernel
    147s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/05/2024, 03:14

General

  • Target

    589868fd7df39cf040cf813672452720_NEAS.exe

  • Size

    256KB

  • MD5

    589868fd7df39cf040cf813672452720

  • SHA1

    b9b0390d507256476cb0b6a4d409d74f09981da0

  • SHA256

    87cd0c1f30ca3079911594ce5c5f5c527c3adbdcd1d8d2d7187fa1f9884f0a25

  • SHA512

    ae287cd5d0ba21f745df28b7446f24fc58960f9ec4809148b749b9fc81809c08214aa167f49bd58b44078b1b1ec58a0de2ea199216cfe2a818f0835c073fabab

  • SSDEEP

    6144:iyHJ4wTB5Ia9p+S0dSpTU+h/zquE1j57Lu6Bwc772t:ig4wTvoS05kzNEj7Lu6nu

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 4 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jtsibgxko.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2268
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2456
      • C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe
        C:\Users\Admin\AppData\Local\Temp\\jtsibgxko.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2492
        • \??\c:\Program Files\fwjdi\evskhhe.exe
          "c:\Program Files\fwjdi\evskhhe.exe" "c:\Program Files\fwjdi\evskhhe.dll",Compliance C:\Users\Admin\AppData\Local\Temp\jtsibgxko.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2596

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \??\c:\Program Files\fwjdi\evskhhe.dll

          Filesize

          179KB

          MD5

          92cec5cfa6c83928f3dfc489fd0a02f7

          SHA1

          108c2cb2989673902dc3ef4e9a92da9d964bde90

          SHA256

          10de310541c652ba838016de86080a48d7a7c49717dffa1c0d3bfc49fa3859e5

          SHA512

          ed3486993f4d12bc8014f195b7fed2fca7ed6263a89591ff9e279717c0cfa46961a7d773f5620043c6a8a341d94817a2dbe16b10c765f485494a2f836957dc0d

        • \Program Files\fwjdi\evskhhe.exe

          Filesize

          43KB

          MD5

          51138beea3e2c21ec44d0932c71762a8

          SHA1

          8939cf35447b22dd2c6e6f443446acc1bf986d58

          SHA256

          5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

          SHA512

          794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

        • \Users\Admin\AppData\Local\Temp\jtsibgxko.exe

          Filesize

          256KB

          MD5

          63d97710da699b1bedf1b9b3d9961829

          SHA1

          f6a9567903e11658b3f7465444627c3552b0ed29

          SHA256

          a516478d1dec77f65cb769af9c27b13fa7e706effac88a892c2682413a1b4771

          SHA512

          b6afb00fce7eb69fcf463691459d8fc9673a48d1759e1e29757409f34b832275b413f2011d0961f4811204654243d04cc3cf004a74dfa5e6ee941ac3f7d3ab6a

        • memory/1740-1-0x0000000000020000-0x0000000000021000-memory.dmp

          Filesize

          4KB

        • memory/1740-3-0x0000000000400000-0x000000000044D01D-memory.dmp

          Filesize

          308KB

        • memory/1740-0-0x0000000000400000-0x000000000044D01D-memory.dmp

          Filesize

          308KB

        • memory/2268-7-0x0000000002270000-0x00000000022BE000-memory.dmp

          Filesize

          312KB

        • memory/2268-8-0x0000000002270000-0x00000000022BE000-memory.dmp

          Filesize

          312KB

        • memory/2492-11-0x0000000000020000-0x0000000000021000-memory.dmp

          Filesize

          4KB

        • memory/2492-10-0x0000000000400000-0x000000000044D01D-memory.dmp

          Filesize

          308KB

        • memory/2492-19-0x0000000000400000-0x000000000044D01D-memory.dmp

          Filesize

          308KB

        • memory/2596-25-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB

        • memory/2596-28-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB

        • memory/2596-27-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB

        • memory/2596-29-0x0000000000110000-0x0000000000111000-memory.dmp

          Filesize

          4KB

        • memory/2596-30-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB

        • memory/2596-33-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB