Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 04:26

General

  • Target

    bda35ce31a90542dac234b4a57a057e87af13fac84c41808b351552e676c351b.exe

  • Size

    55KB

  • MD5

    2d54ff543c33342641b636d0ad93b32b

  • SHA1

    8c469b687a6ea57c560873c8afefac0c6fcdd54d

  • SHA256

    bda35ce31a90542dac234b4a57a057e87af13fac84c41808b351552e676c351b

  • SHA512

    36621147818e4f70fcf1131ed05e3f5cce8d0daa2d05844c83d1776a57da1f554d739a6ec39bd9e602a31c36cb70d64be88cdb3da77766beb1ef9e05bbc017eb

  • SSDEEP

    1536:RhBZ1b9c409y1G1i35Bo01i/gcU8eVTOK/YqjYYamvbtb:BZl2zoxV1i/NU82OMYcYYamv5b

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 2 IoCs
  • Hide Artifacts: Hidden Files and Directories 1 TTPs 7 IoCs
  • UPX packed file 4 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 16 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 39 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs
  • Views/modifies file attributes 1 TTPs 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bda35ce31a90542dac234b4a57a057e87af13fac84c41808b351552e676c351b.exe
    "C:\Users\Admin\AppData\Local\Temp\bda35ce31a90542dac234b4a57a057e87af13fac84c41808b351552e676c351b.exe"
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1744
    • C:\Program Files\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.212ok.com/Gbook.asp?qita
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4352
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4352 CREDAT:17410 /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:3076
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://www.ymtuku.com/xg/?tan
      2⤵
      • Modifies Internet Explorer settings
      PID:828
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\All Users\桌面\Internet Explorer.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2596
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\All Users\桌面\Internet Explorer.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:4420
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\桌面\Internet Explorer.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1548
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\桌面\Internet Explorer.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:944
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1176
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:3732
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1380
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:3932
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\「开始」菜单\程序\Internet Explorer.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2172
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\「开始」菜单\程序\Internet Explorer.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2292
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\WINDOWS\windows.exe"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1460
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\WINDOWS\windows.exe"
        3⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:5036
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "c:\system.exe"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "c:\system.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:5000

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

          Filesize

          471B

          MD5

          ee4ada789158c1e5a14d597cf1d5edd0

          SHA1

          9593aee78d30d51ab93d6a29dc4dc873e0d466b6

          SHA256

          903a6d82bf2fe8951104cf90d9f64aab0fbded30a2246e678a80d07868569b4f

          SHA512

          a6214f62e5089512aeaabab7c4bb38e8663fb55d5f4129c57e726723dad10802ec40c3dc836087713b77c1874c12f177bf2b2998fd3e52f4210c1c5307885c16

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

          Filesize

          404B

          MD5

          4c4a67a6af6ffef3895c962045ef9a7b

          SHA1

          517e72f0e272b0d2b799725836c141e749a233b1

          SHA256

          74fe1ff2b3ddc150a4321f434d03872f6c118f18359b0706fb4cb79f4560925e

          SHA512

          59226dcf31849b949921fcfb4eef9022d42202cd4afbf8f6627de8de8ae9e0ec0dc0affc61dc9224ae1c21c6f6188a2aa585fc60b953b6513a211a258db8a79d

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\suggestions[1].en-US

          Filesize

          17KB

          MD5

          5a34cb996293fde2cb7a4ac89587393a

          SHA1

          3c96c993500690d1a77873cd62bc639b3a10653f

          SHA256

          c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

          SHA512

          e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

        • C:\WINDOWS\windows.exe

          Filesize

          55KB

          MD5

          0d643f8ca9a5f24bac69ccd1986f5fb1

          SHA1

          ff06461b3f95a679352ec542cd3abefb53cdeb1e

          SHA256

          159e71020a22eebb03495b233cf1522365f1cdfd5de24529bf186bd707688466

          SHA512

          25e7dd7e1e9a49183e3571c500c7a3fe96ec71cbb1aeaf1e1fc9aa5b5cf492022163654e1618b72c70bacbef7c142f7acd92e732c7a5f02f86f74716d3125095

        • C:\system.exe

          Filesize

          55KB

          MD5

          430eac61f61a22cc69110a391b60e2ba

          SHA1

          827c47f270f2d09d46fb0788828a6474cc66a6fd

          SHA256

          93fc3dfa0f33f1d9fb56783eebe9fbf00991e33ab2d6ce1b94bdea9ae71f9ece

          SHA512

          c3107fdcd46b747dd922fd741e63aed94390e95850e745c7241e7c71db65093a55ae0929cf151f61e98dc67d4c2d3b13be7b9f879346ad428abcbabfbd156e01

        • memory/1744-0-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/1744-20-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB