Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    20/01/2025, 11:40

General

  • Target

    iWinGames.exe

  • Size

    1.5MB

  • MD5

    4851958fad503e3467be9b047517e4d3

  • SHA1

    95d09a8bae10756fe41739336f5768dc14d27dd9

  • SHA256

    2c8e819d3cfec79cce6fa9ecc2402a7bdc1839c6af98505e38215318f511ed28

  • SHA512

    7bb53990f50512fc1550b91789fc7b3190fb0cdba9bca068f49579d162d46782895d1d518de00e7f95e82823d1f855670492d5dde057b44720bae71d85f063d1

  • SSDEEP

    24576:REZi76e6WbovDyCca0UDOVnYarGqHe32av9/SG8Kppzidtoic8AoI+Ju6BR:wwfU7/cvUcnmau2osKphmx1A96BR

Malware Config

Signatures

  • Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\iWinGames.exe
    "C:\Users\Admin\AppData\Local\Temp\iWinGames.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2700
    • C:\Users\Admin\AppData\Local\Temp\iWinTrusted.exe
      "C:\Users\Admin\AppData\Local\Temp\iWinTrusted.exe" -install
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2792
    • C:\Users\Admin\AppData\Local\Temp\WebInstaller.exe
      "C:\Users\Admin\AppData\Local\Temp\WebInstaller.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2952
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s /i "C:\Users\Admin\AppData\Local\Temp\iWinGamesHookIE.dll"
        3⤵
        • Installs/modifies Browser Helper Object
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:2716
    • C:\Users\Admin\AppData\Local\Temp\AdminWorker.exe
      "C:\Users\Admin\AppData\Local\Temp\AdminWorker.exe" StartProcessNoWait "C:\Users\Admin\AppData\Local\Temp\iWinTrusted.exe" "-install"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2868
      • C:\Users\Admin\AppData\Local\Temp\iWinTrusted.exe
        "C:\Users\Admin\AppData\Local\Temp\iWinTrusted.exe" -install
        3⤵
        • System Location Discovery: System Language Discovery
        PID:468

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\5GWW47WY\1356VOHZ.htm

          Filesize

          5KB

          MD5

          dd387b050a4bf3eae73f9741dcc91412

          SHA1

          8b8afc9628bdd823ae137c7ac08165ab1331a446

          SHA256

          0af4b1ed4f5181903476d2d3ddcdd8426f540b8ef7cf690e44c857ec5cd7bdda

          SHA512

          624d72050074fdee4a3c56ed5af230e3f668b83def795518813aab2df674014b35fdd2bae62239ae0ec7dade0ceedc37d4c502f18a90dcabcea473ef3ca12972

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\K0PVW9XR\core-standard[1].js

          Filesize

          578KB

          MD5

          2b50ac1e90a98cdb82d4ae5becb0221c

          SHA1

          665df17df710296f9576bdc90b18640c28c94680

          SHA256

          3aa33e1c6608b54c59d8ada00e8a1b7d5c122d699ec0fc37fdd97a02d42134f5

          SHA512

          5370c60717ade00568ed271c3f77c02bd946686c943d9a64587bfeef0767f0c9d43babff3cd5a72976123e7e477fae91283a1799fba58481bd43f4d8d0e8f6a4

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\K0PVW9XR\polyfills[1].js

          Filesize

          4KB

          MD5

          04b96b5f357a07c6675daaeffcf55074

          SHA1

          8ed411a804b9cdccdc12caaea070911ca324f13f

          SHA256

          a0757d0ce2b9c57b119aa3fc447ab0d2049d6a963c42db7c625189e5c90fed9a

          SHA512

          647925a5f1d7c0c0151a4ebcde56efa80e89d5632d8c371ee0b1ec807ca8d26839a8f154a716e599fe0f2ddaae7c45452e437c2fdcaa1c723078675a279453e2

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\VUUZQMCA\header[1].js

          Filesize

          20KB

          MD5

          04c832663ef2c497c27975760b988a6e

          SHA1

          21475d2e59bfc306d5f9eb319e9c1405bb4f571d

          SHA256

          f24f6fe2a459a9f1766028e1cef53182a3304240c2c2b7b475ac9d2e11813b18

          SHA512

          a0bed83e3d4880b0ff2321321d745c11f0e11f08a21090b6a3e0781f41ead7a2e5b4267e8e99ebed1783e294c1a7ac0b466d23841df7a673e6e97813fa1275b1

        • C:\Users\Admin\AppData\Local\Temp\Cab540B.tmp

          Filesize

          70KB

          MD5

          49aebf8cbd62d92ac215b2923fb1b9f5

          SHA1

          1723be06719828dda65ad804298d0431f6aff976

          SHA256

          b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

          SHA512

          bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

        • C:\Users\Admin\AppData\Local\Temp\Tar54E9.tmp

          Filesize

          181KB

          MD5

          4ea6026cf93ec6338144661bf1202cd1

          SHA1

          a1dec9044f750ad887935a01430bf49322fbdcb7

          SHA256

          8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

          SHA512

          6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

        • memory/468-15-0x0000000000400000-0x0000000000433000-memory.dmp

          Filesize

          204KB

        • memory/2700-5-0x00000000030F0000-0x0000000003123000-memory.dmp

          Filesize

          204KB

        • memory/2700-0-0x0000000000400000-0x0000000000FCD000-memory.dmp

          Filesize

          11.8MB

        • memory/2700-10-0x00000000040D0000-0x0000000004109000-memory.dmp

          Filesize

          228KB

        • memory/2700-11-0x00000000040D0000-0x0000000004109000-memory.dmp

          Filesize

          228KB

        • memory/2700-130-0x00000000030F0000-0x0000000003123000-memory.dmp

          Filesize

          204KB

        • memory/2700-129-0x0000000002B40000-0x0000000002B50000-memory.dmp

          Filesize

          64KB

        • memory/2700-132-0x00000000040D0000-0x0000000004109000-memory.dmp

          Filesize

          228KB

        • memory/2700-131-0x00000000030F0000-0x0000000003123000-memory.dmp

          Filesize

          204KB

        • memory/2700-127-0x0000000000400000-0x0000000000FCD000-memory.dmp

          Filesize

          11.8MB

        • memory/2700-4-0x00000000030F0000-0x0000000003123000-memory.dmp

          Filesize

          204KB

        • memory/2700-3-0x00000000030F0000-0x0000000003123000-memory.dmp

          Filesize

          204KB

        • memory/2700-2-0x0000000002B40000-0x0000000002B50000-memory.dmp

          Filesize

          64KB

        • memory/2700-1-0x0000000000230000-0x0000000000232000-memory.dmp

          Filesize

          8KB

        • memory/2700-122-0x0000000000400000-0x0000000000FCD000-memory.dmp

          Filesize

          11.8MB

        • memory/2792-6-0x0000000000400000-0x0000000000433000-memory.dmp

          Filesize

          204KB

        • memory/2792-9-0x0000000000400000-0x0000000000433000-memory.dmp

          Filesize

          204KB

        • memory/2792-7-0x0000000000230000-0x0000000000232000-memory.dmp

          Filesize

          8KB

        • memory/2868-14-0x0000000000400000-0x0000000000439000-memory.dmp

          Filesize

          228KB

        • memory/2868-12-0x0000000000400000-0x0000000000439000-memory.dmp

          Filesize

          228KB