Analysis

  • max time kernel
    120s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2024 05:11

General

  • Target

    f3c8b1744ca7e323797d6f87dec7528fdc5587c39f72897a60106e25e92f66deN.exe

  • Size

    1.2MB

  • MD5

    a4446a4f5250b97f4f00a7ec9a0e3d10

  • SHA1

    4fd7c2b72a30009d9eddb7c877fa0db86d552f2e

  • SHA256

    f3c8b1744ca7e323797d6f87dec7528fdc5587c39f72897a60106e25e92f66de

  • SHA512

    31f2805e9f90c8bd5bbb609b5e7778077c184ee7134a4032c13da739f0a68a14c56e9107e8c75d58e97eb7cdf3ad9f8bcbf45488a0b2f922af4872709da6c951

  • SSDEEP

    24576:cFOavduSvY3TDxcQq/1vezu72ssMCKBqSulC8wWQ2ie5mZ/l4Fz5Uw0i:sTd1Y3TDxcf1vR72kqSkJXwW56wd

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 5 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 23 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3c8b1744ca7e323797d6f87dec7528fdc5587c39f72897a60106e25e92f66deN.exe
    "C:\Users\Admin\AppData\Local\Temp\f3c8b1744ca7e323797d6f87dec7528fdc5587c39f72897a60106e25e92f66deN.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3016
    • \??\c:\users\admin\appdata\local\temp\f3c8b1744ca7e323797d6f87dec7528fdc5587c39f72897a60106e25e92f66den.exe 
      c:\users\admin\appdata\local\temp\f3c8b1744ca7e323797d6f87dec7528fdc5587c39f72897a60106e25e92f66den.exe 
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2812
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c MODE CON COLS=19 LINES=2
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2980
        • C:\Windows\SysWOW64\mode.com
          MODE CON COLS=19 LINES=2
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1832
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Color A
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1052
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c CLS
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2032
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Color A
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2016
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c CLS
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2112
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Color A
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1244
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c CLS
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1232
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Color A
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1856
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c CLS
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1624
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Color A
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1760
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c CLS
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1972
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c Color A
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2312
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c CLS
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1188
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2652
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2836
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2256
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Executes dropped EXE
            • Loads dropped DLL
            • Adds Run key to start application
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2828
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:2780
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 05:13 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:556
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 05:14 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:1628
        • C:\Windows\Explorer.exe
          C:\Windows\Explorer.exe
          4⤵
            PID:2728

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\f3c8b1744ca7e323797d6f87dec7528fdc5587c39f72897a60106e25e92f66den.exe 

      Filesize

      1.1MB

      MD5

      97e0b85b9ca71655f83bc481798d6efa

      SHA1

      b8e2d7f0ea99fdd73a916a4c9f765e2d2aa44de4

      SHA256

      cb6915315cfc5c80f8527cdbe1b78ace0f6ecae43a70685ba8732f86968ba67d

      SHA512

      1e31c86867a98a902765a83bc01f72fc9d2e818ac59b4715ef9925181217bc21ea74cc382f1ef64b79d25c09468a2bee116fbb04125c41f932b646c9243cebbe

    • C:\Windows\Resources\Themes\icsys.icn.exe

      Filesize

      135KB

      MD5

      6f122a4dd29137760475fa7e0501cd8c

      SHA1

      5cb54489d31999991ea2b6134a9db5877ab80cac

      SHA256

      b4d54bac156ac2b8873fc994706e50b4bae8123d1a789db1429213a4447085fc

      SHA512

      081d94c87988ff33c1af79774dbe16d0ee36a1b62e30ef2b9368147cc17a6e64dca992040a131410f566931df0de4020c5f6a7258384f5c7ec0e4ad4b371630d

    • C:\Windows\Resources\svchost.exe

      Filesize

      135KB

      MD5

      fa8cc67c4f0865b6e0beabeca8078a5a

      SHA1

      287d7e15639b6d86cfc0437fdfca69557ffc9c78

      SHA256

      4052493be37c4fdcb8f17f8b7998cebe5a74d74a3987460998a0696774d524f3

      SHA512

      266d2286a435dc0fecfb7c663d95b766f8e3aadc5ff21b64bbbb53a06d688b763550d03993abf6e5ee1e18342e4a1a246c2dcb6c6ef86d3183a526e84322a74b

    • \Windows\Resources\Themes\explorer.exe

      Filesize

      135KB

      MD5

      6c33f228757808e4ec53fdf19ae5382b

      SHA1

      78ad74018dfc6a088336218d1d0e1c06bddb2c34

      SHA256

      7f04d731b06539a1379fed19f9b3f9d9fcd16d53afd18ed72659f59002066079

      SHA512

      bb0c091bae733b03338bb545f6d0c41c975a277e4b911aba9b5095aa1c580c7615ea3307a340878e0176ddb3f8834f75b48c6bb30908db244117cc537799fdb4

    • \Windows\Resources\spoolsv.exe

      Filesize

      135KB

      MD5

      d9a1529f636eed43e246a490aa3c1cd6

      SHA1

      060ca7b50b6348fd6b2639175e7eb183dd3ca01f

      SHA256

      82199e52a63f6b0f95677e233f35837fdaf564a77c2ec9334ebd432889e2be43

      SHA512

      8e26b9b34cf8036cb39a7ff99636a8684715debdfa51682cca73a58b2f5a20be1e8278c26f7328eca01e164b19917664c796c3cf59774225d57a0bb8b13d96c4

    • memory/2256-64-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2256-49-0x00000000004A0000-0x00000000004BF000-memory.dmp

      Filesize

      124KB

    • memory/2652-27-0x0000000000510000-0x000000000052F000-memory.dmp

      Filesize

      124KB

    • memory/2652-65-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2780-63-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2780-61-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2812-16-0x0000000000920000-0x0000000000C06000-memory.dmp

      Filesize

      2.9MB

    • memory/2812-67-0x0000000000920000-0x0000000000C06000-memory.dmp

      Filesize

      2.9MB

    • memory/2812-60-0x0000000000920000-0x0000000000C06000-memory.dmp

      Filesize

      2.9MB

    • memory/2828-70-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2828-56-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2836-69-0x00000000003A0000-0x00000000003BF000-memory.dmp

      Filesize

      124KB

    • memory/2836-68-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2836-36-0x00000000003A0000-0x00000000003BF000-memory.dmp

      Filesize

      124KB

    • memory/3016-53-0x0000000002D70000-0x0000000003056000-memory.dmp

      Filesize

      2.9MB

    • memory/3016-66-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/3016-0-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/3016-12-0x0000000002D70000-0x0000000003056000-memory.dmp

      Filesize

      2.9MB

    • memory/3016-13-0x0000000000290000-0x00000000002AF000-memory.dmp

      Filesize

      124KB