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Overview

overview

10

Static

static

7

a9b79ea4eb...0N.exe

windows7-x64

10

a9b79ea4eb...0N.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    84s
  • max time network
    107s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 09:36

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General

  • Target

    a9b79ea4ebc364778d7a234fb1802c80N.exe

  • Size

    472KB

  • MD5

    a9b79ea4ebc364778d7a234fb1802c80

  • SHA1

    e692cb70b4289dfc0a758c8cd134e17b36af77a8

  • SHA256

    61a2be81c4b96cc8404bdf4ef1085445277de8d519459f5350dd0ca3fe47b98a

  • SHA512

    3ea1efbe45450163d575502cadfbc6d9f3bb91df1629b50ad50a6d66c488e2d49a0b34e1d60345b0f9a55c156e88d13e61e40e5d77a145bd356bddbe87d10399

  • SSDEEP

    12288:a5yUChnrsy/Ay4aUi8YRVkvtmFW/OZM9+1+gWQbHyuG9peWx5XyyzcW3bROnkgR:a5yUChrsYT8YRivyW/eMIFM900Xyy3bs

Score
10/10
discoveryevasionpersistenceupx

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
    persistence
  • Disables RegEdit via registry modification 3 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Drops file in Drivers directory 2 IoCs
  • Executes dropped EXE 6 IoCs
  • UPX packed file 9 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

    discovery
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 12 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 25 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
    adwarespyware
  • Modifies registry class 41 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 9 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\a9b79ea4ebc364778d7a234fb1802c80N.exe
    "C:\Users\Admin\AppData\Local\Temp\a9b79ea4ebc364778d7a234fb1802c80N.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3944
    • C:\Windows\SysWOW64\cmd.exe
      cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2140
      • C:\Windows\SysWOW64\net.exe
        net share "phim_hai_hay=C:\Documents and Settings\Temp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1048
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 share "phim_hai_hay=C:\Documents and Settings\Temp"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3816
    • C:\WINDOWS\h2s.exe
      C:\WINDOWS\h2s.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\SysWOW64\cmd.exe
        cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4396
        • C:\Windows\SysWOW64\net.exe
          net share "phim_hai_hay=C:\Documents and Settings\Temp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:672
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 share "phim_hai_hay=C:\Documents and Settings\Temp"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2268
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 644
        3⤵
        • Program crash
        PID:1952
    • C:\WINDOWS\system\lsass.exe
      C:\WINDOWS\system\lsass.exe
      2⤵
      • Modifies WinLogon for persistence
      • Disables RegEdit via registry modification
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4732
      • C:\Windows\SysWOW64\cmd.exe
        cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4464
        • C:\Windows\SysWOW64\net.exe
          net share "phim_hai_hay=C:\Documents and Settings\Temp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:892
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 share "phim_hai_hay=C:\Documents and Settings\Temp"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1548
    • C:\Windows\SysWOW64\explorer.exe
      explorer a9b79ea4ebc364778d7a234fb1802c80N
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2608
    • C:\WINDOWS\h2s.exe
      C:\WINDOWS\h2s.exe
      2⤵
      • Modifies WinLogon for persistence
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4092
      • C:\Windows\SysWOW64\cmd.exe
        cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4860
        • C:\Windows\SysWOW64\net.exe
          net share "phim_hai_hay=C:\Documents and Settings\Temp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3396
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 share "phim_hai_hay=C:\Documents and Settings\Temp"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:3992
      • C:\WINDOWS\nacl.exe
        C:\WINDOWS\nacl.exe
        3⤵
        • Modifies WinLogon for persistence
        • Disables RegEdit via registry modification
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:1528
        • C:\Windows\SysWOW64\cmd.exe
          cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3548
      • C:\WINDOWS\system\lsass.exe
        C:\WINDOWS\system\lsass.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:2848
        • C:\Windows\SysWOW64\cmd.exe
          cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
          4⤵
          • System Location Discovery: System Language Discovery
          PID:712
    • C:\WINDOWS\system\lsass.exe
      C:\WINDOWS\system\lsass.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2744
      • C:\Windows\SysWOW64\cmd.exe
        cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4496
        • C:\Windows\SysWOW64\net.exe
          net share "phim_hai_hay=C:\Documents and Settings\Temp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2816
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 share "phim_hai_hay=C:\Documents and Settings\Temp"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:4304
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1932 -ip 1932
    1⤵
      PID:2168
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:2960
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:4836

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\WINDOWS\system32\drivers\etc\hosts
        Filesize

        578B

        MD5

        4cedd41692993cf5a0a40baeb724b871

        SHA1

        fc1eeb1d88966ea4a816bcbdab320830b6f70261

        SHA256

        fc50ea976a803f4b75f0754c470753049cb6ad93466ec9a55f0b922e112a7695

        SHA512

        e7124fdba0a6580da6c48cd77777c6aa1aa23f304db8383551931db1e5e814d2d03de92eeaeeb64f4a0654ee7de640956abeffdd94bcd23c08a875cdc6907862

        Download Submit

      • C:\Windows\System\lsass.exe
        Filesize

        472KB

        MD5

        a9b79ea4ebc364778d7a234fb1802c80

        SHA1

        e692cb70b4289dfc0a758c8cd134e17b36af77a8

        SHA256

        61a2be81c4b96cc8404bdf4ef1085445277de8d519459f5350dd0ca3fe47b98a

        SHA512

        3ea1efbe45450163d575502cadfbc6d9f3bb91df1629b50ad50a6d66c488e2d49a0b34e1d60345b0f9a55c156e88d13e61e40e5d77a145bd356bddbe87d10399

        Download Submit

      • memory/1528-98-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB

        Download

      • memory/1932-48-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB

        Download

      • memory/2744-74-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB

        Download

      • memory/2848-95-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB

        Download

      • memory/3944-0-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB

        Download

      • memory/3944-75-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB

        Download

      • memory/4092-97-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB

        Download

      • memory/4732-96-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB

        Download