Analysis

  • max time kernel
    143s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-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 1 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 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:1980
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hfuts.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3260
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:732
      • C:\Users\Admin\AppData\Local\Temp\hfuts.exe
        C:\Users\Admin\AppData\Local\Temp\\hfuts.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2912
        • \??\c:\Program Files\wtyxl\fje.exe
          "c:\Program Files\wtyxl\fje.exe" "c:\Program Files\wtyxl\fjehz.dll",Compliance C:\Users\Admin\AppData\Local\Temp\hfuts.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:4520

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files\wtyxl\fje.exe

          Filesize

          60KB

          MD5

          889b99c52a60dd49227c5e485a016679

          SHA1

          8fa889e456aa646a4d0a4349977430ce5fa5e2d7

          SHA256

          6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

          SHA512

          08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

        • C:\Users\Admin\AppData\Local\Temp\hfuts.exe

          Filesize

          256KB

          MD5

          cd5c092d3a7ec094712a25a04a1272ba

          SHA1

          b075f3bc65ebc1d4b2d2d72e88df01d4d7cf1a35

          SHA256

          9b607f1da62559ea147ed88b8304aabffe34e43ae85183d44c578c37f29a2df3

          SHA512

          fc8d8ed28ac9f0729c2361e6f0d8ac0f95eed8ff0126f701347cc525cdb9b8a026d3a835cddc592a1b015b83a30b3a5a4090330111399bdf2dfa7df18e056d4c

        • \??\c:\Program Files\wtyxl\fjehz.dll

          Filesize

          179KB

          MD5

          5701cccdce33aed113fbe258f6681eb0

          SHA1

          081f73a990a4a4c7c6624dbcc9884a488c4142c2

          SHA256

          1f5de6132f84337e0bfdd1c080fea9cda66e4effc082a83b8734a817279440fe

          SHA512

          4cc4fe94ec98ca6de0b27b1490f3414f3b27d5c561207df23b0c9e85836af23f32dbb33b8b2c612fe06109edf86655877347541f7d48a70488f7e7fadb2fb5e5

        • memory/1980-0-0x0000000000400000-0x000000000044D01D-memory.dmp

          Filesize

          308KB

        • memory/1980-1-0x00000000001C0000-0x00000000001C1000-memory.dmp

          Filesize

          4KB

        • memory/1980-4-0x0000000000400000-0x000000000044D01D-memory.dmp

          Filesize

          308KB

        • memory/2912-16-0x0000000000400000-0x000000000044D01D-memory.dmp

          Filesize

          308KB

        • memory/2912-9-0x00000000001C0000-0x00000000001C1000-memory.dmp

          Filesize

          4KB

        • memory/2912-8-0x0000000000400000-0x000000000044D01D-memory.dmp

          Filesize

          308KB

        • memory/4520-19-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB

        • memory/4520-20-0x0000000001350000-0x0000000001351000-memory.dmp

          Filesize

          4KB

        • memory/4520-21-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB

        • memory/4520-23-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB

        • memory/4520-25-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB

        • memory/4520-30-0x0000000010000000-0x000000001004F000-memory.dmp

          Filesize

          316KB