Analysis

  • max time kernel
    87s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09/11/2024, 18:07

General

  • Target
    b2aed7063a23348b79464fcb8f61877581a2b614e8ebd48972c6fe32bd335c9bN.exe
  • Size 143KB
  • Sample241109-wp9vcaskgk
  • SHA256 b2aed7063a23348b79464fcb8f61877581a2b614e8ebd48972c6fe32bd335c9b
  • MD5 SHA1 SHA512 SSDEEP

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.

  • 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 17 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 59 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 11 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2aed7063a23348b79464fcb8f61877581a2b614e8ebd48972c6fe32bd335c9bN.exe
    "C:\Users\Admin\AppData\Local\Temp\b2aed7063a23348b79464fcb8f61877581a2b614e8ebd48972c6fe32bd335c9bN.exe"
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • 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:3004
    • 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:372
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:372 CREDAT:275457 /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2780
    • 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
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:1440
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1440 CREDAT:275457 /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2172
    • 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:2556
      • 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:2648
    • 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:2708
      • 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:2564
    • 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:2704
      • 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:340
    • 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:3044
      • 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:1996
    • 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:1828
      • 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:2864
    • 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:2976
      • 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:3032
    • 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
      PID:2604
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "c:\system.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2244

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 c1e6d170af193f9f86898854360cd7b0a59a85f1cda8f2e56d781c7ba0656de7
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 e9195256ad84a07a76575abda217977d84b8745b467628580abbd3e66c970719
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 d4eb5d94d223888a642b0b0118878f6c995ab054e0be8c8a18b0ffa7cf1c9e6a
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 1adfb8e46866f80d6946a53ff06b473c9d28d11c1821815a5e8746ac94ccac0f
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 690f01f89c2b0781105acc1298897b753ddbd5954f3f996c6af9ff6eefb3be5c
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 0ea6372fc5e9047970f335a5007ca01a93bd5d920d0cea548b9fe1b3a6dbc6eb
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 873dea1d4e8545e602574b9221a20a645f561ad45bd3e400a90f32492cad936c
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 c3b3616a18e5135bc3f29c14192e8ae9f2b84ad3d90b7bb5c90b0cda0e100fa2
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 aaf803dccc68d9af75caadfdefb2abcf99550c69c8190cdc1818a40f2492b641
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 233ad0b33e0ce2d9dbe0d13a17c067258a68eb78e1e74a0d0f7e3cdea8889598
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 ffb7be15abde9b1e5c15683429c21f5da73c6623340e810e2a491248fa268533
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 8e935c90eb2076fda4e9a4a890c34420e7e3b34489d277a654a2366782c604f6
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 6870ceec9a66b2372960348644bc4900acd7983595a196b82592be736be192ec
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 c017fca63c1c4b7264ff0439609d44a57007bbf57273ac2965917ce62a7df3f9
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 2c6cab54c58e77f94528fe4998b0cf3f313ce0b0fa20cc0a0e538e66fdf3a603
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 e5654f0be892ee250c20f3c426827d8f791a0fe7bb1061b994a19ba6d07686a5
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 0c989c4e8ed7c927dbee75ddda3fa93be7a6e0b7e315be46299b8f261c8b3664
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 580b197dcb84a6c7c8bf837ef8445b6bec0a6b313304964ebf633b2492052531
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 0ebb15031b5993ae9468d7e7832d20c0ac510f74e39087145698ed26729f3252
        • MD5 SHA1 SHA512

        RecoveryStore.{6D930BD1-9EC5-11EF-B120-F245C6AC432F}.dat

        • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{6D930BD1-9EC5-11EF-B120-F245C6AC432F}.dat
        • Size 5KB
        • SHA256 7e91ffda3411e4bc466579dfbffb3ae5cbb9dd7dc1572ce3c80ee1aee6fa1662
        • MD5 SHA1 SHA512 SSDEEP

        Cab752.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Cab752.tmp
        • Size 70KB
        • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
        • MD5 SHA1 SHA512 SSDEEP

        Tar7D4.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar7D4.tmp
        • Size 181KB
        • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
        • MD5 SHA1 SHA512 SSDEEP

        windows.exe

        • Path C:\WINDOWS\windows.exe
        • Size 143KB
        • SHA256 75792d474f87126153dab7f46466163c42df569d96475490728ae7ba776a5b14
        • MD5 SHA1 SHA512 SSDEEP

        system.exe

        • Path C:\system.exe
        • Size 143KB
        • SHA256 9882b55042f1553cb069db6a9306156df029e8d1d50da554c8121e7b8a4d342b
        • MD5 SHA1 SHA512 SSDEEP

        memory/3004-0-0x0000000000400000-0x000000000042A000-memory.dmp

        memory/3004-454-0x0000000000400000-0x000000000042A000-memory.dmp