Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/08/2026, 08:40

General

  • Target
    ec9f005e1fd90db6c1f9182e45ecf8af1b73d6c7c564ccc8d83ab915167b5f78.exe
  • Size 449KB
  • Sample260825-klcjwsgj21
  • SHA256 ec9f005e1fd90db6c1f9182e45ecf8af1b73d6c7c564ccc8d83ab915167b5f78
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Renames multiple (255) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 3 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec9f005e1fd90db6c1f9182e45ecf8af1b73d6c7c564ccc8d83ab915167b5f78.exe
    "C:\Users\Admin\AppData\Local\Temp\ec9f005e1fd90db6c1f9182e45ecf8af1b73d6c7c564ccc8d83ab915167b5f78.exe"
    1⤵
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4056
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3952
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4132
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a1A1B.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1728
      • C:\Users\Admin\AppData\Local\Temp\ec9f005e1fd90db6c1f9182e45ecf8af1b73d6c7c564ccc8d83ab915167b5f78.exe
        "C:\Users\Admin\AppData\Local\Temp\ec9f005e1fd90db6c1f9182e45ecf8af1b73d6c7c564ccc8d83ab915167b5f78.exe"
        3⤵
        • Executes dropped EXE
        PID:6100
    • C:\Windows\Logo1_.exe
      C:\Windows\Logo1_.exe
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4808
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3716
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:5236
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4176
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2440
  • C:\Windows\uninstall\rundl132.exe
    C:\Windows\uninstall\rundl132.exe
    1⤵
    • Drops file in Drivers directory
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4136

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCXB4F9.tmp

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RCXB4F9.tmp
        • Size 139KB
        • SHA256 34ae1ca60d627ee0b2ffc94007747f430f00b4d65a0c8621691653fd209688a7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXB73D.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\RCXB73D.tmp
        • Size 77KB
        • SHA256 c936005ef50b3bff07d9d168ecdc30ac4b57c2d2d5a39391c488bcf46cf0f703
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXBBA4.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\RCXBBA4.tmp
        • Size 86KB
        • SHA256 853ee415285520ccc78789fa472e0519968eac7493a1a59e6b2747f925a715d6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXBBF6.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\RCXBBF6.tmp
        • Size 74KB
        • SHA256 ddc48a66623342b053a85c494d3b4a3ec0af06a3fd9273268babf51859aabdfb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msedge.exe.Exe

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\msedge.exe.Exe
        • Size 4.0MB
        • SHA256 491db69434371c02ab24b56dc76227953c7194d49834a29789b8a7e9c04db3c4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe.Exe

        • Path C:\Program Files\7-Zip\7z.exe.Exe
        • Size 638KB
        • SHA256 d2bb6e7cc855f2622ffb2732cc3316fce329d0f3e9f24a3af42c0287bd0dccd8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA7A7.tmp

        • Path C:\Program Files\7-Zip\RCXA7A7.tmp
        • Size 74KB
        • SHA256 941a1037a927bfb04dc89993f33be503088bb9eb5608e783f6084232059d5eb1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        javaw.exe.Exe

        • Path C:\Program Files\Java\jdk-1.8\bin\javaw.exe.Exe
        • Size 360KB
        • SHA256 b7dba98b727454f0f3f04fd78259a7704ca621b3d757a967a5fe2dad618599a2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SPREADSHEETCOMPARE.EXE.Exe

        • Path C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE.Exe
        • Size 537KB
        • SHA256 e8f61d863ad0156dfc872a5400885f495bae3cbd553822fdcfcc7e0dcf484a5b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXACB6.tmp

        • Path C:\Program Files\Mozilla Firefox\uninstall\RCXACB6.tmp
        • Size 83KB
        • SHA256 eee6b34bc8a6650341fd8dbaebf69f027518ab35daa35d3ca6bfb1b285554bdf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC195.tmp

        • Path C:\ProgramData\Package Cache\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\RCXC195.tmp
        • Size 75KB
        • SHA256 d6364875b9ba7ce30bde059f802df93956f8a35d8af731b777ed2af2d5bb0dd5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a1A1B.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a1A1B.bat
        • Size 722B
        • SHA256 4f7b4e4cd1a1dada0531ce6aca468ba9473aa79a866a3a1f11fcfacbb5879daf
        • MD5 SHA1 SHA512 TLSH

        ec9f005e1fd90db6c1f9182e45ecf8af1b73d6c7c564ccc8d83ab915167b5f78.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ec9f005e1fd90db6c1f9182e45ecf8af1b73d6c7c564ccc8d83ab915167b5f78.exe.exe
        • Size 360KB
        • SHA256 b57dfbd41b892bf80df298222cdb3800cc19937af34e04d3868b74522e4dce06
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 89KB
        • SHA256 0192bb031873e443ff9054d2ffc252843d57d1f4ebeb19bc8cc9e05aaab024f4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

        • Path C:\Windows\system32\drivers\etc\hosts
        • Size 842B
        • SHA256 d9704dab05e988be3e5e7b7c020bb9814906d11bb9c31ad80d4ed1316f6bc94e
        • MD5 SHA1 SHA512 TLSH

        memory/4056-8-0x0000000000400000-0x0000000000427000-memory.dmp

        memory/4136-16-0x0000000000400000-0x0000000000427000-memory.dmp

        memory/4808-18-0x0000000000400000-0x0000000000427000-memory.dmp

        memory/4808-709-0x0000000000400000-0x0000000000427000-memory.dmp

        memory/4808-1251-0x0000000000400000-0x0000000000427000-memory.dmp