Analysis

  • max time kernel
    113s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 00:42

General

  • Target

    c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe

  • Size

    230KB

  • MD5

    419dd4c9c0bc71f42d9cc51111821b60

  • SHA1

    a3482fd1713761374c061d1db26bb03924252bf6

  • SHA256

    c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0

  • SHA512

    5b6e352015ff708bc2ad8dad9f226a908e8ae3960efe6e92b24320c785a6b5f3ff1326e905f7fea19acd17a7549b1d585a5702d71755004a8ef91dbbe6be5841

  • SSDEEP

    6144:6Piynu0cvT2wQc4+T6YWtQSh/iuGkq7L2/zlUMp:6Piynu0cK9g6YWtp7TWSO4

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 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
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • 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\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe
    "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1872
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vhcis.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:464
      • C:\Users\Admin\AppData\Local\Temp\vhcis.exe
        C:\Users\Admin\AppData\Local\Temp\\vhcis.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1760
        • \??\c:\Program Files\jwuuu\mnuuihmkm.exe
          "c:\Program Files\jwuuu\mnuuihmkm.exe" "c:\Program Files\jwuuu\mnuuihmkm.dll",EnumSourceFiles C:\Users\Admin\AppData\Local\Temp\vhcis.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:212

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Program Files\jwuuu\mnuuihmkm.exe

          Filesize

          60KB

          MD5

          889b99c52a60dd49227c5e485a016679

          SHA1

          8fa889e456aa646a4d0a4349977430ce5fa5e2d7

          SHA256

          6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

          SHA512

          08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

          Filesize

          230KB

          MD5

          29bf6a60045085f25f007815281fa750

          SHA1

          83791db40f7113d76d22cb246477b2b2797620f8

          SHA256

          0fcadc1a3e25685ce366503f6c99f01ec267e9ff23c9ee4e6395b31f4855da8b

          SHA512

          6cdc55a12e34b35ce784eb7c88297bd04ec83ec766413c33b0c200db11282c9a9eeb3a35bc5bd8480b8ce1fde6af6246fe285cd40a4c91cd1342fbee10e862e6

        • \??\c:\Program Files\jwuuu\mnuuihmkm.dll

          Filesize

          180KB

          MD5

          934d96d55b33424ca1ca2920a6b7b8cd

          SHA1

          4ef50658d97ebc5c84929bbd35cf0741549395b1

          SHA256

          b203a2cbbc2eda8b6ae588c1d1e2f59eb39297fd261c4de93f75921d48ad2301

          SHA512

          6ac311c44af3f72fdc1d6f9e2d3d17959064db727d2f3e9b5b61e863850cf3e6543010e5c801647dbe6a82ca0c8755186a9d595c4a0eba1347dbb45bd8894c32

        • memory/212-14-0x0000000010000000-0x0000000010076000-memory.dmp

          Filesize

          472KB

        • memory/212-15-0x0000000010000000-0x0000000010076000-memory.dmp

          Filesize

          472KB

        • memory/212-18-0x0000000010000000-0x0000000010076000-memory.dmp

          Filesize

          472KB

        • memory/1760-10-0x0000000000400000-0x0000000000481C34-memory.dmp

          Filesize

          519KB

        • memory/1872-0-0x0000000000400000-0x0000000000481C34-memory.dmp

          Filesize

          519KB

        • memory/1872-2-0x0000000000400000-0x0000000000481C34-memory.dmp

          Filesize

          519KB