Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 14:51

General

  • Target
    655c3f0ba29df98305a5febea85d250505c2721bdd2b5e39b43acfc5345814f3.exe
  • Size 6.2MB
  • Sample260930-r8c79sty5q
  • SHA256 655c3f0ba29df98305a5febea85d250505c2721bdd2b5e39b43acfc5345814f3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Deletes itself 1 TTPs 1 IoCs
  • Executes dropped EXE 15 IoCs
  • Adds Run key to start application 2 TTPs 12 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 13 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).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 32 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\655c3f0ba29df98305a5febea85d250505c2721bdd2b5e39b43acfc5345814f3.exe
    "C:\Users\Admin\AppData\Local\Temp\655c3f0ba29df98305a5febea85d250505c2721bdd2b5e39b43acfc5345814f3.exe"
    1⤵
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search\UserSession.exe
      "C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search\UserSession.exe" --monitor
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4832
  • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search\UserSession.exe
    "C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search\UserSession.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5220
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\UpdateService.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\UpdateService.exe" --monitor
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1332
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\UpdateService.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\UpdateService.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\UserSession.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\UserSession.exe" --monitor
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3056
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\UserSession.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\UserSession.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Users\Admin\AppData\Local\Temp\WindowsShell.exe
      "C:\Users\Admin\AppData\Local\Temp\WindowsShell.exe" --monitor
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4472
  • C:\Users\Admin\AppData\Local\Temp\WindowsShell.exe
    "C:\Users\Admin\AppData\Local\Temp\\WindowsShell.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5668
    • C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\SecurityCore.exe
      "C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\SecurityCore.exe" --monitor
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1992
  • C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\SecurityCore.exe
    "C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\SecurityCore.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3620
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\CoreSystem.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\CoreSystem.exe" --monitor
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      PID:2964
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\CoreSystem.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\CoreSystem.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5384
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\WindowsInternal.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\WindowsInternal.exe" --monitor
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      PID:4812
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\WindowsInternal.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\WindowsInternal.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:880
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\UpdateService.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\UpdateService.exe" --monitor
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      PID:2364

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 acb9d981851f4c3271fad627cdfda2a2d8599028a2b9b0f06fd24acd3767dcad
        • MD5 SHA1 SHA512 TLSH

        223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
        • Size 2KB
        • SHA256 714842d12308ec0508c43b1dd6552bf8dc987d1602cc840daa4b561e150e8e23
        • MD5 SHA1 SHA512 TLSH

        421EC2E1E0F47FC59DB99BB19E16DA88

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\421EC2E1E0F47FC59DB99BB19E16DA88
        • Size 280B
        • SHA256 b58f7696fc81ea50570304ba19a94ac07ef88f00cb18545c035b4dc13205bfef
        • MD5 SHA1 SHA512 TLSH

        49A7F8B8A2FD8A9E65352CD7C88B1D10

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\49A7F8B8A2FD8A9E65352CD7C88B1D10
        • Size 183KB
        • SHA256 2168e10e619ee6e9c232b88753b33ebcbb2df57abd1b848210b82a590137acf4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44
        • Size 976B
        • SHA256 e0e7336a1c7c64caa65ecd69b0c3a40929a71e78b54170a9296636677e6bd991
        • MD5 SHA1 SHA512 TLSH

        DF2B6F1E6BCC61CEBCA21A02089A3B19_4F548F7827F125ACC54E53397A41333A

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\DF2B6F1E6BCC61CEBCA21A02089A3B19_4F548F7827F125ACC54E53397A41333A
        • Size 2KB
        • SHA256 132c75bfd291b9f783c174e8598359524c23f8e68b8fc9ad44071b2d508cf669
        • 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 bc4c4e854a0f5f206cef5ec87da9315dd1d79899017277e4299f427469e4abac
        • MD5 SHA1 SHA512 TLSH

        18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7
        • Size 488B
        • SHA256 a7a11e8bb56fdfd5294ef032912118d717ac8b04699bef0b1d500a86f81a8d7f
        • MD5 SHA1 SHA512 TLSH

        223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
        • Size 450B
        • SHA256 2d33484e99d6a662bbfad8a3b85eacc4670fed4a0999e2e46be9ed8b922b9f54
        • MD5 SHA1 SHA512 TLSH

        421EC2E1E0F47FC59DB99BB19E16DA88

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\421EC2E1E0F47FC59DB99BB19E16DA88
        • Size 484B
        • SHA256 b3c878c8eaf7036a942501b9907fc8c7da58accb05c4ca39fbf67fb4b2e98e35
        • MD5 SHA1 SHA512 TLSH

        49A7F8B8A2FD8A9E65352CD7C88B1D10

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\49A7F8B8A2FD8A9E65352CD7C88B1D10
        • Size 248B
        • SHA256 ea8dcaf6a60aff79f938bc26877c2280a69c690180904ee60c5dab8c7b5a95c5
        • MD5 SHA1 SHA512 TLSH

        D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44
        • Size 488B
        • SHA256 eef1111df1387f18c300ae26c32fe593a85b7edc21203eae7dc3c3d8a6b51d4f
        • MD5 SHA1 SHA512 TLSH

        DF2B6F1E6BCC61CEBCA21A02089A3B19_4F548F7827F125ACC54E53397A41333A

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\DF2B6F1E6BCC61CEBCA21A02089A3B19_4F548F7827F125ACC54E53397A41333A
        • Size 474B
        • SHA256 7952b3029b073240eef09d3ccc3c5cfcab48d8ddd762d8ad116bef10881837d5
        • MD5 SHA1 SHA512 TLSH

        F15827BEC5BABE89C21DCDAE77464BF1

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F15827BEC5BABE89C21DCDAE77464BF1
        • Size 192B
        • SHA256 0e1a8a4fb8f52c0d45ed32619a808319889362ecffa65d3b8eb3b22a32ae5285
        • MD5 SHA1 SHA512 TLSH

        SecurityCore.exe

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\SecurityCore.exe
        • Size 6.8MB
        • SHA256 a7a354c505d383532996dc0204e20af3cc212859f1fbe9948f7f30b2bc4e81d1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UserSession.exe

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search\UserSession.exe
        • Size 6.3MB
        • SHA256 6f0a56e2d2cce97bea698b9765d3208a4a03ab03a95eb8fbedb6191d073ad78e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WindowsShell.exe

        • Path C:\Users\Admin\AppData\Local\Temp\WindowsShell.exe
        • Size 6.6MB
        • SHA256 4d5f2f6dfdc09e6e8d5021d17238b9a6dc35af7728c8c114717a0d46cae0dded
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WindowsInternal.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Diagnostics\WindowsInternal.exe
        • Size 7.0MB
        • SHA256 6767ea1ffd3d7b0b85dec0932bb4289e85e53389e03f1345bae58b6baa33dc50
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UpdateService.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\UpdateService.exe
        • Size 6.4MB
        • SHA256 a19036947de7fe50edaa8267238f282b47839ec044015af2e919841fdb7c13ef
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UpdateService.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Explorer\UpdateService.exe
        • Size 7.1MB
        • SHA256 2515e1e5d5379c4b96a173f1676f227e46b9fba5a000169c9512b2ad0e28d032
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CoreSystem.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\CoreSystem.exe
        • Size 6.9MB
        • SHA256 a3ddd53046b284ce29a90006ddb45fc3e1186e55a85c7589193f626e20ab5fd8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UserSession.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemMonitor\UserSession.exe
        • Size 6.5MB
        • SHA256 2599768f8096c30e09f87fec9e2191aa2fd83e422f5ce07ac354bf2a14251c55
        • MD5 SHA1 SHA512 SSDEEP TLSH