Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/07/2026, 01:52

General

  • Target
    2026-07-29_64a1518d01e3e953f5b122dc43784a04_amadey_cosmicduke_elex_glassworm_smoke-loader_tofsee.exe
  • Size 1.5MB
  • Sample260730-cat1ssac64
  • SHA256 b1351e881bfa3ccc74299e448a6d76724eae61159e5d562343f8121806501697
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: CosmicDuke,TinyBaron

    CosmicDuke aka TinyBaron is an information stealer used by the APT29 group.

  • Detects CosmicDuke or TinyBaron 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 42 IoCs

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

  • Drops file in System32 directory 16 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies Control Panel 5 IoCs
  • Modifies data under HKEY_USERS 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-29_64a1518d01e3e953f5b122dc43784a04_amadey_cosmicduke_elex_glassworm_smoke-loader_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-29_64a1518d01e3e953f5b122dc43784a04_amadey_cosmicduke_elex_glassworm_smoke-loader_tofsee.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Enumerates connected drives
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_win_path
    PID:5352
    • C:\Windows\SysWOW64\infenv.exe
      C:\Windows\SysWOW64\infenv.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4800
  • C:\Windows\SysWOW64\infenv.exe
    C:\Windows\SysWOW64\infenv.exe
    1⤵
    • Executes dropped EXE
    PID:2308
  • C:\Windows\SysWOW64\msmgr.exe
    "C:\Windows\SysWOW64\msmgr.exe" 1ds
    1⤵
    • Executes dropped EXE
    • Enumerates connected drives
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2540
  • C:\Windows\SysWOW64\msmgr.exe
    C:\Windows\SysWOW64\msmgr.exe
    1⤵
    • Executes dropped EXE
    PID:3120

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        msid.scr

        • Path C:\Users\Admin\AppData\Local\Temp\msid.scr
        • Size 3KB
        • SHA256 47f3405ab0da5af125bcc6ebb6d17a1573b090c54d7a0a00630ec170ccc4b9d1
        • MD5 SHA1 SHA512 TLSH

        ntuser{4CB43D7F-7DCA-4906-8698-FFFFFFFF8094E303}.pol

        • Path C:\Users\Public\Documents\ntuser{4CB43D7F-7DCA-4906-8698-FFFFFFFF8094E303}.pol
        • Size 4B
        • SHA256 443c07a2c83b7b0253a325d2b72ac757c3aa5b41cd749842bc74fb3ee9b26866
        • MD5 SHA1 SHA512

        infenv.exe

        • Path C:\Windows\SysWOW64\infenv.exe
        • Size 980KB
        • SHA256 1fc9450b5ffa84ace990ba6b876c128491c3d8c75532ed87b2f535a17815b9c4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msmgr.exe

        • Path C:\Windows\SysWOW64\msmgr.exe
        • Size 1.7MB
        • SHA256 f1123641ee3433344a8b74270b0318dcd9af73447f5e38c8c46ce1a75b2685ed
        • MD5 SHA1 SHA512 SSDEEP TLSH