Analysis

  • user interaction
    yes
  • max time kernel
    720s
  • max time network
    723s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/08/2026, 20:45

General

  • Target
    cb-launcher.exe
  • Size 2.4MB
  • Sample260802-zjs67afp2x
  • SHA256 98f2834b4139bde1cc1afcd5f17a995cecb3d232f49de5bacef79ad2aadee8d0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Remus

    Remus is a stealer written in C++.

  • Detects Remus stealer 1 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Contacts third-party web service commonly abused for C2 1 TTPs 64 IoCs

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

  • Downloads MZ/PE file 8 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Loads dropped DLL 15 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 47 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 45 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe
    "C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe"
    1⤵
    • Downloads MZ/PE file
    • Loads dropped DLL
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe
      "C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-sandbox --use-angle=swiftshader-webgl --use-gl=angle --enable-experimental-web-platform-features --locales-dir-path="C:\Users\Admin\AppData\Local\cbservers\data\cef\release\locales" --log-severity=disable --resources-dir-path="C:\Users\Admin\AppData\Local\cbservers\data\cef\release" --lang=en-US --user-data-dir="C:\Users\Admin\AppData\Local\cbservers\user\cef-data\user" --cb-subprocess --log-file="C:\Users\Admin\AppData\Local\cbservers\user\cef-data\debug.log" --mojo-platform-channel-handle=2744 --field-trial-handle=2748,i,15927367769432320364,9903295134984168932,262144 --enable-features=BlockInsecurePrivateNetworkRequests,BlockInsecurePrivateNetworkRequestsForNavigations,BlockInsecurePrivateNetworkRequestsFromPrivate,BlockInsecurePrivateNetworkRequestsFromUnknown,ClientHintThirdPartyDelegation,ClientHintsMetaEquivDelegateCH,ClientHintsMetaHTTPEquivAcceptCH,ClipboardCustomFormats,CookieSameSiteConsidersRedirectChain,CreateImageBitmapOrientationNone,CriticalClientHint,DocumentPictureInPictureAPI,DocumentPolicyNegotiation,DocumentReporting,EditContext,EnableCanvas2DLayers,ExperimentalContentSecurityPolicyFeatures,OriginIsolationHeader,PendingBeaconAPI,PrivateNetworkAccessRespectPreflightResults,SchemefulSameSite,StorageAccessAPI,StorageAccessAPIForOriginExtension,ThirdPartyStoragePartitioning,UserAgentClientHint --disable-features=BackForwardCache,CalculateNativeWinOcclusion /prefetch:8
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:3460
    • C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe
      "C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-sandbox --use-angle=swiftshader-webgl --use-gl=angle --enable-experimental-web-platform-features --locales-dir-path="C:\Users\Admin\AppData\Local\cbservers\data\cef\release\locales" --log-severity=disable --resources-dir-path="C:\Users\Admin\AppData\Local\cbservers\data\cef\release" --lang=en-US --user-data-dir="C:\Users\Admin\AppData\Local\cbservers\user\cef-data\user" --cb-subprocess --log-file="C:\Users\Admin\AppData\Local\cbservers\user\cef-data\debug.log" --mojo-platform-channel-handle=2752 --field-trial-handle=2748,i,15927367769432320364,9903295134984168932,262144 --enable-features=BlockInsecurePrivateNetworkRequests,BlockInsecurePrivateNetworkRequestsForNavigations,BlockInsecurePrivateNetworkRequestsFromPrivate,BlockInsecurePrivateNetworkRequestsFromUnknown,ClientHintThirdPartyDelegation,ClientHintsMetaEquivDelegateCH,ClientHintsMetaHTTPEquivAcceptCH,ClipboardCustomFormats,CookieSameSiteConsidersRedirectChain,CreateImageBitmapOrientationNone,CriticalClientHint,DocumentPictureInPictureAPI,DocumentPolicyNegotiation,DocumentReporting,EditContext,EnableCanvas2DLayers,ExperimentalContentSecurityPolicyFeatures,OriginIsolationHeader,PendingBeaconAPI,PrivateNetworkAccessRespectPreflightResults,SchemefulSameSite,StorageAccessAPI,StorageAccessAPIForOriginExtension,ThirdPartyStoragePartitioning,UserAgentClientHint --disable-features=BackForwardCache,CalculateNativeWinOcclusion /prefetch:8
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:4896
    • C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe
      "C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe" --type=renderer --locales-dir-path="C:\Users\Admin\AppData\Local\cbservers\data\cef\release\locales" --log-severity=disable --resources-dir-path="C:\Users\Admin\AppData\Local\cbservers\data\cef\release" --user-data-dir="C:\Users\Admin\AppData\Local\cbservers\user\cef-data\user" --cb-subprocess --first-renderer-process --no-sandbox --enable-experimental-web-platform-features --log-file="C:\Users\Admin\AppData\Local\cbservers\user\cef-data\debug.log" --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3040 --field-trial-handle=2748,i,15927367769432320364,9903295134984168932,262144 --enable-features=BlockInsecurePrivateNetworkRequests,BlockInsecurePrivateNetworkRequestsForNavigations,BlockInsecurePrivateNetworkRequestsFromPrivate,BlockInsecurePrivateNetworkRequestsFromUnknown,ClientHintThirdPartyDelegation,ClientHintsMetaEquivDelegateCH,ClientHintsMetaHTTPEquivAcceptCH,ClipboardCustomFormats,CookieSameSiteConsidersRedirectChain,CreateImageBitmapOrientationNone,CriticalClientHint,DocumentPictureInPictureAPI,DocumentPolicyNegotiation,DocumentReporting,EditContext,EnableCanvas2DLayers,ExperimentalContentSecurityPolicyFeatures,OriginIsolationHeader,PendingBeaconAPI,PrivateNetworkAccessRespectPreflightResults,SchemefulSameSite,StorageAccessAPI,StorageAccessAPIForOriginExtension,ThirdPartyStoragePartitioning,UserAgentClientHint --disable-features=BackForwardCache,CalculateNativeWinOcclusion /prefetch:1
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:3984
    • C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe
      "C:\Users\Admin\AppData\Local\Temp\cb-launcher.exe" --type=renderer --locales-dir-path="C:\Users\Admin\AppData\Local\cbservers\data\cef\release\locales" --log-severity=disable --resources-dir-path="C:\Users\Admin\AppData\Local\cbservers\data\cef\release" --user-data-dir="C:\Users\Admin\AppData\Local\cbservers\user\cef-data\user" --cb-subprocess --no-sandbox --enable-experimental-web-platform-features --log-file="C:\Users\Admin\AppData\Local\cbservers\user\cef-data\debug.log" --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3048 --field-trial-handle=2748,i,15927367769432320364,9903295134984168932,262144 --enable-features=BlockInsecurePrivateNetworkRequests,BlockInsecurePrivateNetworkRequestsForNavigations,BlockInsecurePrivateNetworkRequestsFromPrivate,BlockInsecurePrivateNetworkRequestsFromUnknown,ClientHintThirdPartyDelegation,ClientHintsMetaEquivDelegateCH,ClientHintsMetaHTTPEquivAcceptCH,ClipboardCustomFormats,CookieSameSiteConsidersRedirectChain,CreateImageBitmapOrientationNone,CriticalClientHint,DocumentPictureInPictureAPI,DocumentPolicyNegotiation,DocumentReporting,EditContext,EnableCanvas2DLayers,ExperimentalContentSecurityPolicyFeatures,OriginIsolationHeader,PendingBeaconAPI,PrivateNetworkAccessRespectPreflightResults,SchemefulSameSite,StorageAccessAPI,StorageAccessAPIForOriginExtension,ThirdPartyStoragePartitioning,UserAgentClientHint --disable-features=BackForwardCache,CalculateNativeWinOcclusion /prefetch:1
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:3568
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:1268
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3196
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:3216
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:5948
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4404
    • C:\Windows\System32\SecurityHealthHost.exe
      \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
      1⤵
        PID:8

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            prep_Activatable Class_Hermes_perf.cache

            • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
            • Size 595B
            • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
            • MD5 SHA1 SHA512 TLSH

            chrome_100_percent.pak

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\chrome_100_percent.pak
            • Size 607KB
            • SHA256 80139849d4cf4a9dc8ad429be071229bd7538c41f5af5aed498fd981873bd4cf
            • MD5 SHA1 SHA512 SSDEEP TLSH

            chrome_200_percent.pak

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\chrome_200_percent.pak
            • Size 915KB
            • SHA256 f2a2c9dd0ec8baf6820b445a1485787c6651d3f0c8d0ec8f58a808b836fa04d0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            chrome_elf.dll

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\chrome_elf.dll
            • Size 1.4MB
            • SHA256 08ab23efb637be966b98a446e7bade2c321c40d276d1bc9b7bf2c2e372773fc1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            d3dcompiler_47.dll

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\d3dcompiler_47.dll
            • Size 4.7MB
            • SHA256 e4bc3420a28069bd13dc3be725d46676a7c0e99de221026e8c43cd6f7ed45c0b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            icudtl.dat

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\icudtl.dat
            • Size 10.1MB
            • SHA256 ee3c8883effd90edfb0ff5b758c560cbca25d1598fcb55b80ef67e990dd19d41
            • MD5 SHA1 SHA512 SSDEEP TLSH

            libEGL.dll

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\libEGL.dll
            • Size 464KB
            • SHA256 f7d7ac7f1728e2b9005c018dd3b02e7abbb6e72cc5e6487170f4789370d0d73d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            libGLESv2.dll

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\libGLESv2.dll
            • Size 7.0MB
            • SHA256 25c093a77b4a1ea7ed6281b0fea3ff78b65b92943dd428b7b03ca30ba3d18b9f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            en-US.pak

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\locales\en-US.pak
            • Size 384KB
            • SHA256 18b68d00be426a4f7acd4efc1e45ae296720ade13ca66d3cf768e48d814b6a25
            • MD5 SHA1 SHA512 SSDEEP TLSH

            resources.pak

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\resources.pak
            • Size 7.4MB
            • SHA256 6f9dafb5d3f16b89d13c01bcd52695d0671a66f6719a6bc54a878106903516c0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            v8_context_snapshot.bin

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\v8_context_snapshot.bin
            • Size 661KB
            • SHA256 eb3bb6497db6ed980a1702ef2db9df891ea6327a6498e670d038b41f69c3ff10
            • MD5 SHA1 SHA512 SSDEEP TLSH

            vulkan-1.dll

            • Path C:\Users\Admin\AppData\Local\cbservers\data\cef\release\vulkan-1.dll
            • Size 902KB
            • SHA256 ae91c4e7548eaf48b1a65c43f518e2c1989b4740efe82726b56b6be31cbfd1c3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            discord_partner_sdk.dll

            • Path C:\Users\Admin\AppData\Local\cbservers\data\discord\discord_partner_sdk.dll
            • Size 9.4MB
            • SHA256 46170463bf263045972fde1ccaa51b380eb1443541036a809d24f4e6a9f9c388
            • MD5 SHA1 SHA512 SSDEEP TLSH

            the-real-index

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\Code Cache\js\index-dir\the-real-index
            • Size 432B
            • SHA256 b08480bfbbbb0a374d45226a7b46e9a709abc610b2473b5964712ba822b4583f
            • MD5 SHA1 SHA512 TLSH

            the-real-index~RFe60f253.TMP

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\Code Cache\js\index-dir\the-real-index~RFe60f253.TMP
            • Size 48B
            • SHA256 fd1a48dd48350be535f753b54187cfb3744cb34f1ae57025d9862621c9b47d12
            • MD5 SHA1 SHA512

            CURRENT

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\Local Storage\leveldb\CURRENT
            • Size 16B
            • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
            • MD5 SHA1 SHA512

            LocalPrefs.json

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\LocalPrefs.json
            • Size 681B
            • SHA256 09448239410947a88b06574945a020060c0ab069688963661af1738849f525d6
            • MD5 SHA1 SHA512 TLSH

            LocalPrefs.json~RFe61b45b.TMP

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\LocalPrefs.json~RFe61b45b.TMP
            • Size 508B
            • SHA256 4ed5787d2c42f59d626008cdb1d7a6eb95f37e3bd7505a6ceacbbb745477db2c
            • MD5 SHA1 SHA512 TLSH

            Network Persistent State

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\Network\Network Persistent State
            • Size 770B
            • SHA256 af1fe3cc1f4a421da33322a18e22525e761bbdfc4bc1d9a9f8522b7a2d204f58
            • MD5 SHA1 SHA512 TLSH

            Network Persistent State~RFe61bf38.TMP

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\Network\Network Persistent State~RFe61bf38.TMP
            • Size 59B
            • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
            • MD5 SHA1 SHA512 TLSH

            TransportSecurity

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\Network\TransportSecurity
            • Size 186B
            • SHA256 765eb221e6e69fefeb0599c90cc690eff25c4d3c3abb1fc18584c0bc91f5949d
            • MD5 SHA1 SHA512 TLSH

            TransportSecurity~RFe61499b.TMP

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\Network\TransportSecurity~RFe61499b.TMP
            • Size 186B
            • SHA256 82a75b56abc8e1d9500b853fd569fc2d266b9931ec67f5775f54a4b041d90513
            • MD5 SHA1 SHA512 TLSH

            MANIFEST-000001

            • Path C:\Users\Admin\AppData\Local\cbservers\user\cef-data\cache\Session Storage\MANIFEST-000001
            • Size 41B
            • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
            • MD5 SHA1 SHA512

            properties.json

            • Path C:\Users\Admin\AppData\Local\cbservers\user\properties.json
            • Size 95B
            • SHA256 1bd1483aefdb80b0ffaffce351bf77027c02ffbb7e79009735406f8514b83771
            • MD5 SHA1 SHA512 TLSH

            CB Servers Launcher.lnk

            • Path C:\Users\Admin\Desktop\CB Servers Launcher.lnk
            • Size 1KB
            • SHA256 4bef62ff115868a59328e8ba216682bc8014934b29e6ea2ebf6185df5b256dfa
            • MD5 SHA1 SHA512 TLSH

            memory/4404-750-0x000001BADDAA0000-0x000001BADDD3E000-memory.dmp

            memory/5948-572-0x000001D8001E0000-0x000001D8002E0000-memory.dmp

            memory/5948-749-0x000001E01F6E0000-0x000001E01F97E000-memory.dmp

            memory/5948-571-0x000001D8001E0000-0x000001D8002E0000-memory.dmp

            memory/5948-584-0x000001D803EB0000-0x000001D803ED0000-memory.dmp

            memory/5948-570-0x000001D8001E0000-0x000001D8002E0000-memory.dmp

            memory/5948-585-0x000001D8142E0000-0x000001D8143E0000-memory.dmp

            memory/5948-602-0x000001D804100000-0x000001D804120000-memory.dmp

            memory/5948-616-0x000001D814C30000-0x000001D814C50000-memory.dmp