Overview

overview

10

Static

static

5

3fc7d574ed...e3.exe

windows7-x64

10

3fc7d574ed...e3.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04/01/2024, 03:27

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General

  • Target

    3fc7d574eda0aa78c7374d97cff91de3.exe

  • Size

    512KB

  • MD5

    3fc7d574eda0aa78c7374d97cff91de3

  • SHA1

    c8f5c8bc56b913d33822268c6ad88dee0d3bea93

  • SHA256

    de3d5d114f4875ac3874a6a5b0656a3c8732507974ca1bcbc4bd49193b2194f8

  • SHA512

    50f5a971e60746ac7faf1c72eb8768d581eaa18eb323a7392d025f3dcc2be5a082211790844a710ca505748818119ccbe0bd1813b961dc033ac571ff2bb098a3

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6M:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5v

Score
10/10
evasionpersistencespywarestealertrojan

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 5 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Windows security modification 2 TTPs 6 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
    persistence
  • AutoIT Executable 9 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 33 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of FindShellTrayWindow 61 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\3fc7d574eda0aa78c7374d97cff91de3.exe
    "C:\Users\Admin\AppData\Local\Temp\3fc7d574eda0aa78c7374d97cff91de3.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Windows\SysWOW64\fcicuuynzj.exe
      fcicuuynzj.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\SysWOW64\tmumlxrz.exe
        C:\Windows\system32\tmumlxrz.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:2632
    • C:\Windows\SysWOW64\ifedaadzufffgye.exe
      ifedaadzufffgye.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2804
    • C:\Windows\SysWOW64\rcnaldlrwfbrp.exe
      rcnaldlrwfbrp.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2704
    • C:\Windows\SysWOW64\tmumlxrz.exe
      tmumlxrz.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2852
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2492
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2640

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe
      Filesize

      512KB

      MD5

      727827a2396cb81790e9486599b8fec9

      SHA1

      3e1776af8c6369a5536c67132db01d75030326a7

      SHA256

      7a182f315904625e4bfbba3f63d2e1e18360cc5c98c8318e8ea26a43390899be

      SHA512

      39153fddf0a92f337e997872da6561a5563481d8ad24031eb125eeb83e5db82c97141c76c04921ff7df0bc7b3ac85f5898fe518d7c03e1686db1a7d9ad86b1b2

      Download Submit

    • C:\Users\Admin\Desktop\ImportConfirm.doc.exe
      Filesize

      512KB

      MD5

      fdf7a67cf1d80855548e287e8b792f1f

      SHA1

      0de856be243c2b85a109902fef9cd03794864ad5

      SHA256

      737abe0720b5271c80de2364fd218872fd7dcb0453de5ed15d1488089693cb18

      SHA512

      e537deea25650c6ca647122ccc5630e96ed0afab72fcdad2df5e5b5a6d5f7e9ddf91adbbfb1e2ebab549c490517ecfc3c31fe57530bf5f08ac828f3881cef4b7

      Download Submit

    • C:\Windows\SysWOW64\ifedaadzufffgye.exe
      Filesize

      512KB

      MD5

      de698de47e6104bac7c42c0b3cf8fa14

      SHA1

      2b3c837eb67d081c386fd8a2fd004eb7702f5fa2

      SHA256

      6435f144cf4d75e2d7e5e2a0d9b595009b9830ed45812d68d03e2cf74b3572a6

      SHA512

      bfb74aedb5946c3e066a7d945bb4f4068a2581d864670f9636ab3e9e063127bb8f9e1d7bfbee97796d35a7c5f26e922a76606e013d5dc8319980d056c75f0775

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    • C:\Windows\SysWOW64\tmumlxrz.exe
      Filesize

      382KB

      MD5

      badd716c7c48a8241873d9251da496d1

      SHA1

      6bd2a072c8f64a1780fe75d983cb7b6584985c6d

      SHA256

      ad4373bfa026f66380b8ce44d6bc300d146770114fb10087019af7c616dc11d7

      SHA512

      7bf3f09216e2ba376053e668963797cd78f91119467917a84f467dd3110d6bd26592784cdf7cefd293413ff5b6dbe10a996d89627177235d9f109732c05f36c5

      Download Submit

    • C:\Windows\SysWOW64\tmumlxrz.exe
      Filesize

      92KB

      MD5

      6662b185f19fbf697c56a25c92de7961

      SHA1

      0df0c0df0de3724258df2549c583e3c934aca726

      SHA256

      c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

      SHA512

      c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

      Download Submit

    • C:\Windows\mydoc.rtf
      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

      Download Submit

    • \Windows\SysWOW64\fcicuuynzj.exe
      Filesize

      512KB

      MD5

      87b9b7766b366e36de8ee91c721aaa92

      SHA1

      438f4e166e6178120558f39a8fc19dc5ca139ef0

      SHA256

      e76511f9534b7e84c2eda7fe75aae23ef9b587d1ed8324b51134df02c61b6481

      SHA512

      33d7e0e4a5be793142b5a9fe006c9059bc67f99286a2262aa0df5f1773cd9281b910448e7b4e124ee3de12e3fcb19899a6829dea1acbad21efd960a681fc5239

      Download Submit

    • \Windows\SysWOW64\rcnaldlrwfbrp.exe
      Filesize

      381KB

      MD5

      30aec9e0b33fbd99234328357879f812

      SHA1

      3c9d37139d4ccfe2b694afba9633170d0f510a92

      SHA256

      15aad0daaaeea2f1eb8d19a8999f42844b2885d6bef949f6787feba7dad46563

      SHA512

      2060f2cc8c90181dd0a9965f0ff3a94aece08c82c4a68454846f66778bc60dade3ba5ddc38be57311ff4a7bd78217b89a9cd09837eee4b5d9893277299dad415

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    • memory/1424-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

      Download

    • memory/2604-46-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2604-63-0x000000007104D000-0x0000000071058000-memory.dmp

      Filesize

      44KB

      Download

    • memory/2604-47-0x000000007104D000-0x0000000071058000-memory.dmp

      Filesize

      44KB

      Download

    • memory/2604-45-0x000000002F9D1000-0x000000002F9D2000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2640-48-0x0000000004060000-0x0000000004061000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2640-64-0x0000000004060000-0x0000000004061000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2640-94-0x0000000002720000-0x0000000002730000-memory.dmp

      Filesize

      64KB

      Download