Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/11/2026, 21:55

General

  • Target
    2026-11-06_d82ab58cffcc56374a83c255b2477c27_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
  • Size 2.5MB
  • Sample261107-1synps117k
  • SHA256 cfdc820e70e303ee2cf902dd9ff05b3b6c4a96ff8454e966803e5f321a8c7443
  • 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 5 IoCs
  • Custom signature
    UPX dump on OEP (original entry point) 5 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
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • System Location Discovery: System Language Discovery 1 TTPs 4 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\2026-11-06_d82ab58cffcc56374a83c255b2477c27_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-06_d82ab58cffcc56374a83c255b2477c27_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.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:2964
    • C:\Windows\SysWOW64\wmnt.exe
      C:\Windows\SysWOW64\wmnt.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2568
  • C:\Windows\SysWOW64\wmnt.exe
    C:\Windows\SysWOW64\wmnt.exe
    1⤵
    • Executes dropped EXE
    PID:3800
  • C:\Windows\SysWOW64\libpc.exe
    "C:\Windows\SysWOW64\libpc.exe" ld1
    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:5384
  • C:\Windows\SysWOW64\libpc.exe
    C:\Windows\SysWOW64\libpc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1984

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        fslib.exe

        • Path C:\Users\Admin\AppData\Local\Temp\fslib.exe
        • Size 5KB
        • SHA256 5b50e26a01b320f05d66727e9d220d5858cdac203ff62e4b9ced1cafc2683637
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tapilsa.scr

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

        ntuser{4CB43D7F-7DCA-4906-8698-FFFFFFFF80CD9101}.pol

        • Path C:\Users\Public\Documents\ntuser{4CB43D7F-7DCA-4906-8698-FFFFFFFF80CD9101}.pol
        • Size 4B
        • SHA256 443c07a2c83b7b0253a325d2b72ac757c3aa5b41cd749842bc74fb3ee9b26866
        • MD5 SHA1 SHA512

        libpc.exe

        • Path C:\Windows\SysWOW64\libpc.exe
        • Size 2.5MB
        • SHA256 fc2f1143297a86dd305a4c1dc83df6e1a1f7b713f0ac7bf4906d10c29384a19f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wmnt.exe

        • Path C:\Windows\SysWOW64\wmnt.exe
        • Size 2.2MB
        • SHA256 16e05202d0f0947d77d2cbffe255fbc86643521ea250217147903addab27cce7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1984-74-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/1984-75-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/1984-77-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/1984-79-0x0000000000400000-0x0000000000438000-memory.dmp

        memory/2964-5-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/2964-4-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/2964-3-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/2964-2-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/2964-1-0x0000000000423000-0x0000000000424000-memory.dmp

        memory/2964-0-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/5384-73-0x0000000000400000-0x00000000005B4000-memory.dmp