Analysis

  • max time kernel
    112s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2024, 22:25

General

  • Target

    e399c67287b960692c4ea816d861e24f3cc8bc0fe75f7f8165aab20cae9d8d25N.exe

  • Size

    93KB

  • MD5

    cee1433a4a69a9e53652636ccbd49b90

  • SHA1

    702234b757e139fa57474aba42bb355a7bdf7a1e

  • SHA256

    e399c67287b960692c4ea816d861e24f3cc8bc0fe75f7f8165aab20cae9d8d25

  • SHA512

    faae51f15c6a0b095bf1c6bd4fb40d4315723c9e0d9c749b71f15e39a715ae0d4d40d7e3659c2e3b2c2d9cf608b6d4a85c3afec153a943409857cbd90fb3d871

  • SSDEEP

    1536:1MIPgEm56wnbkKC2ZyBJU066lwLCRVEB+nR/y8cmNrEIviCOzuajkrDl9HNSj:11PgEOng1d66jRVa+n4NmNNouukrD7HI

Malware Config

Signatures

  • Blocklisted process makes network request 9 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 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.

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • System Location Discovery: System Language Discovery 1 TTPs 6 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.

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e399c67287b960692c4ea816d861e24f3cc8bc0fe75f7f8165aab20cae9d8d25N.exe
    "C:\Users\Admin\AppData\Local\Temp\e399c67287b960692c4ea816d861e24f3cc8bc0fe75f7f8165aab20cae9d8d25N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2560
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\mdssq.exe "C:\Users\Admin\AppData\Local\Temp\e399c67287b960692c4ea816d861e24f3cc8bc0fe75f7f8165aab20cae9d8d25N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2324
      • 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:1532
      • C:\Users\Admin\AppData\Local\Temp\mdssq.exe
        C:\Users\Admin\AppData\Local\Temp\\mdssq.exe "C:\Users\Admin\AppData\Local\Temp\e399c67287b960692c4ea816d861e24f3cc8bc0fe75f7f8165aab20cae9d8d25N.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2200
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\vfwtt\immmxis.mmi",crc32 C:\Users\Admin\AppData\Local\Temp\mdssq.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)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2920
          • \??\c:\windows\SysWOW64\taskkill.exe
            taskkill /f /im attrib.exe
            5⤵
            • System Location Discovery: System Language Discovery
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:2864

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \??\c:\vfwtt\immmxis.mmi

          Filesize

          57KB

          MD5

          2f53f49e01f09d6e6064871eec1955cd

          SHA1

          a6e1a6e5c2080d0fb2f7a872e3902a8a4a1a9b5f

          SHA256

          964e4dd2532d540bb61d3c7ccc833f2358d8cd6b2eabc3a2d51183a18b59f82d

          SHA512

          2cb98030c3df7417c04f796f78f23f96d381871d9c7ae4a14116764e915b2e2f56b9b3a6fb76fedc50a17788de9538fc7954a7b73bf17e4be43e1fc1a06bc218

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

          Filesize

          93KB

          MD5

          6564211148a514180a0eb98b690426ee

          SHA1

          473102beca3f996f9f2fa030e8a77be8fd5547fb

          SHA256

          724fad6494867cda137a6ffd3f1dd8c279e1f996a5726023b25ac5a1ea4f706a

          SHA512

          2318789c0e7153d63a76010c289d93a1c93ad530c3e779ab3c2acfc01f74a91984caee0b643cf000a05c046f6acf84a654b407b99c19d3baf7b9cee09245097c

        • memory/2200-8-0x00000000003A0000-0x00000000003A1000-memory.dmp

          Filesize

          4KB

        • memory/2200-10-0x0000000000400000-0x0000000000428000-memory.dmp

          Filesize

          160KB

        • memory/2560-0-0x0000000000400000-0x0000000000428000-memory.dmp

          Filesize

          160KB

        • memory/2560-1-0x0000000000260000-0x0000000000261000-memory.dmp

          Filesize

          4KB

        • memory/2560-3-0x0000000000400000-0x0000000000428000-memory.dmp

          Filesize

          160KB

        • memory/2920-13-0x0000000010000000-0x0000000010022000-memory.dmp

          Filesize

          136KB

        • memory/2920-14-0x0000000010000000-0x0000000010022000-memory.dmp

          Filesize

          136KB

        • memory/2920-18-0x0000000010000000-0x0000000010022000-memory.dmp

          Filesize

          136KB

        • memory/2920-19-0x0000000010000000-0x0000000010022000-memory.dmp

          Filesize

          136KB

        • memory/2920-20-0x0000000010000000-0x0000000010022000-memory.dmp

          Filesize

          136KB