Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/10/2024, 23:26

General

  • Target

    5dfe02a2c169a30a3c6530c859206277e638f91fd11e1d7c9e88ac626534b2d2.exe

  • Size

    414KB

  • MD5

    e5348a7741e1f455018922f88bda740b

  • SHA1

    5c2e410ff8dacc75d794dcbd23487206b32bcaab

  • SHA256

    5dfe02a2c169a30a3c6530c859206277e638f91fd11e1d7c9e88ac626534b2d2

  • SHA512

    6c40a2d5aa12c0acd9ced775a8360487cf9518229d140f25853805cdf87c0ac1fbbea229cc0b8d110884dea61e05a8790d2d8e301ff04c9f98dd9c3e87107234

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 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 64 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\5dfe02a2c169a30a3c6530c859206277e638f91fd11e1d7c9e88ac626534b2d2.exe
    "C:\Users\Admin\AppData\Local\Temp\5dfe02a2c169a30a3c6530c859206277e638f91fd11e1d7c9e88ac626534b2d2.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\spmmg.exe "C:\Users\Admin\AppData\Local\Temp\5dfe02a2c169a30a3c6530c859206277e638f91fd11e1d7c9e88ac626534b2d2.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:3456
      • 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:4588
      • C:\Users\Admin\AppData\Local\Temp\spmmg.exe
        C:\Users\Admin\AppData\Local\Temp\\spmmg.exe "C:\Users\Admin\AppData\Local\Temp\5dfe02a2c169a30a3c6530c859206277e638f91fd11e1d7c9e88ac626534b2d2.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:2784
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\dykhs\kotfy.dll",Verify C:\Users\Admin\AppData\Local\Temp\spmmg.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3388

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          414KB

          MD5

          9472e71d58a07bebae20faac5e5d56d0

          SHA1

          5cee8c26ff4a3e9933e36960ba4795d7f6d33db3

          SHA256

          2e3854c9bfa15abb0c4dae99989834714b85cadc42a2a7bf405eeaf7cf23758f

          SHA512

          02bdc0fe9dbb3f84eb09021f21417edcacbea55be352853d3222f4b12b8f3376780f5938990a33a3838878fd5782ca9df50b9e3d4c4dc89d3caa5d6a02550e37

        • \??\c:\Program Files\dykhs\kotfy.dll

          Filesize

          228KB

          MD5

          f723a018634dabbd53a6c06ee2752a2d

          SHA1

          dd6c10ecabf443ff590a2a1ba046b4d29b56ce67

          SHA256

          cbd0766d14731c8c04ad047eaa77c1bdc92ce7c2ce88fd724936fbe253c32b60

          SHA512

          60f3783edec1f04fd19285416fd8175912b8c877daf8aa305bc74a0e0e2d73ae12d1209d9956f9e56a913fc01730f7aff382dffc6974c8164e1daece020099d3

        • memory/1492-0-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/1492-2-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/2784-7-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/3388-10-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/3388-12-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/3388-13-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB