Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/09/2026, 19:10

General

  • Target
    b78d538cbb2a7d65463333b7e798b6a2688341c1aaf3597633953e572649bdcf.exe
  • Size 5.4MB
  • Sample260919-xvszfsba97
  • SHA256 b78d538cbb2a7d65463333b7e798b6a2688341c1aaf3597633953e572649bdcf
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 16 IoCs
  • Adds Run key to start application 2 TTPs 9 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 8 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Detect suspicious telegram bot 8 IoCs

    Detect suspicious telegram bot.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b78d538cbb2a7d65463333b7e798b6a2688341c1aaf3597633953e572649bdcf.exe
    "C:\Users\Admin\AppData\Local\Temp\b78d538cbb2a7d65463333b7e798b6a2688341c1aaf3597633953e572649bdcf.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5032
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\SystemHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\SystemHost.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:6120
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\SystemHost.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\SystemHost.exe"
    1⤵
    • Deletes itself
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\RuntimeBroker32.exe
      "C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\RuntimeBroker32.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4940
  • C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\RuntimeBroker32.exe
    "C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\RuntimeBroker32.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3800
    • C:\Users\Admin\AppData\Local\Low\Microsoft\CryptnetUrlCache\UpdateService.exe
      "C:\Users\Admin\AppData\Local\Low\Microsoft\CryptnetUrlCache\UpdateService.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4500
  • C:\Users\Admin\AppData\Local\Low\Microsoft\CryptnetUrlCache\UpdateService.exe
    "C:\Users\Admin\AppData\Local\Low\Microsoft\CryptnetUrlCache\UpdateService.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\DesktopWindowManager.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\DesktopWindowManager.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4752
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\DesktopWindowManager.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\DesktopWindowManager.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Users\Admin\AppData\Local\Temp\RuntimeBroker32.exe
      "C:\Users\Admin\AppData\Local\Temp\RuntimeBroker32.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2180
  • C:\Users\Admin\AppData\Local\Temp\RuntimeBroker32.exe
    "C:\Users\Admin\AppData\Local\Temp\\RuntimeBroker32.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4604
    • C:\Users\Admin\AppData\Local\Temp\Diagnostics\SystemTrayHelper.exe
      "C:\Users\Admin\AppData\Local\Temp\Diagnostics\SystemTrayHelper.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2988
  • C:\Users\Admin\AppData\Local\Temp\Diagnostics\SystemTrayHelper.exe
    "C:\Users\Admin\AppData\Local\Temp\\Diagnostics\SystemTrayHelper.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Users\Admin\AppData\Local\Temp\SystemHost.exe
      "C:\Users\Admin\AppData\Local\Temp\SystemHost.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2920
  • C:\Users\Admin\AppData\Local\Temp\SystemHost.exe
    "C:\Users\Admin\AppData\Local\Temp\\SystemHost.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3820
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\UserSession.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\UserSession.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4284
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\UserSession.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\UserSession.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:6080

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        103621DE9CD5414CC2538780B4B75751

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751
        • Size 808B
        • SHA256 3dd5ea8a14eb665ba6057d424f94e5e83757ffaab456578dbf038af04053b19e
        • MD5 SHA1 SHA512 TLSH

        18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7
        • Size 313B
        • SHA256 1422d2722bc0fb5571340098faac4c367b48224c45605ba3cd51b41d0642de52
        • MD5 SHA1 SHA512 TLSH

        223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
        • Size 2KB
        • SHA256 32392e14f5ca6e4ddf09910010184bf5e65f8e75ff992ec2302294daaee562a9
        • MD5 SHA1 SHA512 TLSH

        421EC2E1E0F47FC59DB99BB19E16DA88

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\421EC2E1E0F47FC59DB99BB19E16DA88
        • Size 279B
        • SHA256 3c37a5c742e0943081aedac0e2fd783f8c64d9bb014a4f71426445baa06e7aa9
        • MD5 SHA1 SHA512 TLSH

        49A7F8B8A2FD8A9E65352CD7C88B1D10

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\49A7F8B8A2FD8A9E65352CD7C88B1D10
        • Size 176KB
        • SHA256 4cdfb8c0353eb3142b39178eed7f4d17668baf6851c281e49ff075c50608fa2e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44
        • Size 977B
        • SHA256 489432a46f9f0155b1e8857bea0a2fbdbe4b2ce8ac9937a50ff1b8822759aaab
        • MD5 SHA1 SHA512 TLSH

        DF2B6F1E6BCC61CEBCA21A02089A3B19_4F548F7827F125ACC54E53397A41333A

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\DF2B6F1E6BCC61CEBCA21A02089A3B19_4F548F7827F125ACC54E53397A41333A
        • Size 2KB
        • SHA256 a0d259c401ea848a02864a7afca784f24c5a244ec6d4569b9e139e7a99f6c657
        • MD5 SHA1 SHA512 TLSH

        F15827BEC5BABE89C21DCDAE77464BF1

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F15827BEC5BABE89C21DCDAE77464BF1
        • Size 701B
        • SHA256 108dd34232a3088b45534933d0486409616a2bbad94fd8f7ab5991c01ff179b6
        • MD5 SHA1 SHA512 TLSH

        103621DE9CD5414CC2538780B4B75751

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751
        • Size 192B
        • SHA256 fa84ad05817484536aae14e896aec5fdf8035907787dd1927acbffd4878463ef
        • MD5 SHA1 SHA512 TLSH

        18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7
        • Size 488B
        • SHA256 8bf71687d8784a7e0ff2393c61c450a0dfdf49a2b1ac3b7dc8c5dd0f8acb65ff
        • MD5 SHA1 SHA512 TLSH

        223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
        • Size 450B
        • SHA256 96808785a07bd636502456071ebecd3fecc4d4e29a78e1159876be001aab8e15
        • MD5 SHA1 SHA512 TLSH

        421EC2E1E0F47FC59DB99BB19E16DA88

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\421EC2E1E0F47FC59DB99BB19E16DA88
        • Size 484B
        • SHA256 411ed858e30026db16423b1b933f4777734637d01f5f529e554fe4d130cf01ec
        • MD5 SHA1 SHA512 TLSH

        49A7F8B8A2FD8A9E65352CD7C88B1D10

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\49A7F8B8A2FD8A9E65352CD7C88B1D10
        • Size 248B
        • SHA256 7ba1d31f4813dc8696535ae78bf5d4990d835ca9a209df457e627c296108e930
        • MD5 SHA1 SHA512 TLSH

        D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44
        • Size 488B
        • SHA256 304d2673eb8eb3290bfada3ac73534bb06f21692f3f3acb24113cdd4c2f8cf23
        • MD5 SHA1 SHA512 TLSH

        DF2B6F1E6BCC61CEBCA21A02089A3B19_4F548F7827F125ACC54E53397A41333A

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\DF2B6F1E6BCC61CEBCA21A02089A3B19_4F548F7827F125ACC54E53397A41333A
        • Size 474B
        • SHA256 7d411bcf03d1047cb371b4caf786a7ea1199dffcd0e947d11f0472da9db68e95
        • MD5 SHA1 SHA512 TLSH

        F15827BEC5BABE89C21DCDAE77464BF1

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F15827BEC5BABE89C21DCDAE77464BF1
        • Size 192B
        • SHA256 8c00e1a1d6204187be81ad12d646c0cadb0be7fab78eb5e8ad2d5813c4b5f8eb
        • MD5 SHA1 SHA512 TLSH

        UpdateService.exe

        • Path C:\Users\Admin\AppData\Local\Low\Microsoft\CryptnetUrlCache\UpdateService.exe
        • Size 5.7MB
        • SHA256 e623ddd9018e188fa4c8f03861f0c5095c08d640ff93e9a0c021f1a4807a8d6e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RuntimeBroker32.exe

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\RuntimeBroker32.exe
        • Size 5.6MB
        • SHA256 9af12ce4fe56ecfbeaf501d22a71e77d4c39a375bc983c82c555ba0d3f19f220
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SystemTrayHelper.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Diagnostics\SystemTrayHelper.exe
        • Size 6.1MB
        • SHA256 9fd59ce3edd4a05e3a312fcf81afec97de2f4f2a1f458895764f048308346557
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RuntimeBroker32.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RuntimeBroker32.exe
        • Size 6.0MB
        • SHA256 9e0137b65c2f1bbdcc7893061b9228fae8aa56f9dfeeddc5ac3d88527c732616
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SystemHost.exe

        • Path C:\Users\Admin\AppData\Local\Temp\SystemHost.exe
        • Size 6.2MB
        • SHA256 f09f3853c84ed6b64425762dca59218e641fd39716201e8e5f9447e5767aafdc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UserSession.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\UserSession.exe
        • Size 6.3MB
        • SHA256 ea845cf45808d13f575a8acf63ec5a8b57b11694b3e681255d705664d34608cc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DesktopWindowManager.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\DesktopWindowManager.exe
        • Size 5.8MB
        • SHA256 de7076df9bbdaf42f6350265ee9a4a7661483eeb19ea78264cee071cd6fd3a49
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SystemHost.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\SystemHost.exe
        • Size 5.5MB
        • SHA256 0f5e1daddc2286e36a491c7eb2a3806df244df7ad7da553006be1bafb99810f4
        • MD5 SHA1 SHA512 SSDEEP TLSH