Resubmissions

28/03/2025, 16:52

250328-vdc6kazry9 9

24/03/2025, 22:22

250324-2aphra1jx7 10

Analysis

  • max time kernel
    899s
  • max time network
    449s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/03/2025, 22:22

General

  • Target

    34818CE171EA150B91429AC1DD6FBE49.dll

  • Size

    170KB

  • MD5

    34818ce171ea150b91429ac1dd6fbe49

  • SHA1

    765f7cea9ae6e126181e5a78b897304913530d4d

  • SHA256

    502386cb2288ce85af522da55916b5a05c71d9a32a80cec396bc4cdd0e0ac665

  • SHA512

    e44b009eef9710787ddf63d5038e15112969ef5ac952520f772b5ab78dfe57c42f7562044642f573c9480c76569ef9a7912cc5cd1b0472e4d61c25e79a03bfb0

  • SSDEEP

    3072:xUiScf7Taa44mVg6zMe4sfPZfE8dreM9aSW3OKojVbc7n4CRWLvSFlp6+qvv1:xUUm4mG6zwQLaM9aKjRg0SLlK1

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Drops file in Program Files directory 5 IoCs
  • 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 Protected Mode 1 TTPs 15 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 33 IoCs
  • Modifies registry class 8 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 10 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\34818CE171EA150B91429AC1DD6FBE49.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5520
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\34818CE171EA150B91429AC1DD6FBE49.dll,#1
      2⤵
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer Protected Mode
      • Modifies Internet Explorer Protected Mode Banner
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2156
      • C:\Windows\SysWOW64\explorer.exe
        explorer.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:1928
      • C:\Windows\SysWOW64\notepad.exe
        notepad.exe
        3⤵
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer Protected Mode
        • Modifies Internet Explorer Protected Mode Banner
        • Modifies Internet Explorer settings
        • Suspicious behavior: EnumeratesProcesses
        PID:1920
      • C:\Windows\SysWOW64\notepad.exe
        notepad.exe
        3⤵
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer Protected Mode
        • Modifies Internet Explorer Protected Mode Banner
        • Modifies Internet Explorer settings
        • Suspicious behavior: EnumeratesProcesses
        PID:4552
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{682159d9-c321-47ca-b3f1-30e36b2ec8b9} -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1648
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {3eef301f-b596-4c0b-bd92-013beafce793} -Embedding
    1⤵
      PID:1172
    • C:\Program Files (x86)\Internet Explorer\ielowutil.exe
      "C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
      1⤵
      • System Location Discovery: System Language Discovery
      PID:4512
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5772
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5772 CREDAT:17410 /prefetch:2
        2⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1896

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\PROGRA~3\NOTEPAD.EXE-x.txt

      Filesize

      553B

      MD5

      13e57d65208fc6c69c1bf5da425186ee

      SHA1

      51fd28cde91ebb894746105c20091581fbfd9a12

      SHA256

      948f906f704cfe8f61c27b163319d55aa5eaf7cfb9d166909546be808a266388

      SHA512

      a1fb8971eec7c49040626a8e88b18d7b56d560db2e1b3a0d81166291a86fa92a223027adbabe37b1b0463c472fbc07f7e84fe2d6ded572c436a2d918586558be

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187

      Filesize

      471B

      MD5

      1891fa32efc0dc0d5430e9b66ee16a2c

      SHA1

      a8b47b7519a471a7853cd245e3b0ea9cd7492552

      SHA256

      37982ae9ff59c271ba5d3f0f5d37bbe8103a1cbc4d16d5d9d5409a08fda098cf

      SHA512

      c7574dda7c7cdd1fb4eb53bfa32ecb8ecdfc8df81f2174afde16c3c60ed97d8be1a342403cca5c2da77f90c6541fa903689c373be3a060c5fadb28519752631e

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187

      Filesize

      412B

      MD5

      eff8bc7195dfbec6b72bcb55929f1708

      SHA1

      7796e449017b9caf41d8f61ca2a73bb04103ef21

      SHA256

      5f24cf006e7e684214e5d04f25a57b51fc4d25a9bcfd09e3416780ea18dfab5d

      SHA512

      fef5e5b1c2b4e6160de81ea7b89cb349bad3c37d981b2dbc27fcd7cb50ef94c68e813c5a3a6e7936b740d94f6e855210c8e67dccf4be6b48c776f9da81fa7312

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WP7READH\suggestions[1].en-US

      Filesize

      17KB

      MD5

      5a34cb996293fde2cb7a4ac89587393a

      SHA1

      3c96c993500690d1a77873cd62bc639b3a10653f

      SHA256

      c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

      SHA512

      e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

    • memory/1920-15-0x0000000004440000-0x000000000446B000-memory.dmp

      Filesize

      172KB

    • memory/1920-16-0x0000000004440000-0x000000000446B000-memory.dmp

      Filesize

      172KB

    • memory/1920-10-0x0000000004440000-0x000000000446B000-memory.dmp

      Filesize

      172KB

    • memory/1920-11-0x0000000004440000-0x000000000446B000-memory.dmp

      Filesize

      172KB

    • memory/2156-0-0x00000000026B0000-0x00000000026DB000-memory.dmp

      Filesize

      172KB

    • memory/2156-18-0x00000000026B0000-0x00000000026DB000-memory.dmp

      Filesize

      172KB

    • memory/2156-24-0x00000000026E0000-0x000000000270E000-memory.dmp

      Filesize

      184KB

    • memory/2156-23-0x0000000002740000-0x000000000276B000-memory.dmp

      Filesize

      172KB

    • memory/2156-1-0x00000000026E0000-0x000000000270E000-memory.dmp

      Filesize

      184KB

    • memory/2156-2-0x0000000002740000-0x000000000276B000-memory.dmp

      Filesize

      172KB