Resubmissions

16/09/2026, 04:42

260916-fbybdszv5k

16/09/2026, 04:35

260916-e7phpavgrb10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/09/2026, 04:35

General

  • Target
    2026-09-16_e322df41ea2f26cc6ab75a11366ed2c4_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
  • Size 2.8MB
  • Sample260916-e7phpavgrb
  • SHA256 3c993f4cd376dc0e098e61185931e154b80a5741c463fd4914f0bc845367b924
  • 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 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\2026-09-16_e322df41ea2f26cc6ab75a11366ed2c4_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-16_e322df41ea2f26cc6ab75a11366ed2c4_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.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:580
    • C:\Windows\SysWOW64\sqlctf.exe
      C:\Windows\SysWOW64\sqlctf.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3776
  • C:\Windows\SysWOW64\sqlctf.exe
    C:\Windows\SysWOW64\sqlctf.exe
    1⤵
    • Executes dropped EXE
    PID:2520
  • C:\Windows\SysWOW64\apifs.exe
    "C:\Windows\SysWOW64\apifs.exe" 4hk
    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:3132
  • C:\Windows\SysWOW64\apifs.exe
    C:\Windows\SysWOW64\apifs.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4472

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        fwnt.scr

        • Path C:\Users\Admin\AppData\Local\Temp\fwnt.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

        apifs.exe

        • Path C:\Windows\SysWOW64\apifs.exe
        • Size 2.8MB
        • SHA256 3eefb69d6b64ba139cf97b104b005600c1921e7dda12df9aca27af4d17be0006
        • MD5 SHA1 SHA512 SSDEEP TLSH

        sqlctf.exe

        • Path C:\Windows\SysWOW64\sqlctf.exe
        • Size 1.6MB
        • SHA256 95b231961f479407363e4ebc4d605fdad3282807b61d2d739f6ee751b6c55ce2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/580-1-0x0000000000400000-0x00000000005D5000-memory.dmp

        memory/580-4-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/580-2-0x0000000000400000-0x00000000005D5000-memory.dmp

        memory/580-0-0x0000000000400000-0x00000000005D5000-memory.dmp

        memory/580-5-0x0000000002790000-0x00000000027D8000-memory.dmp

        memory/580-3-0x0000000002790000-0x00000000027D8000-memory.dmp

        memory/3132-74-0x0000000000400000-0x00000000005D5000-memory.dmp

        memory/3132-33-0x0000000000400000-0x00000000005D5000-memory.dmp

        memory/3132-34-0x0000000000400000-0x00000000005D5000-memory.dmp

        memory/4472-37-0x0000000000400000-0x00000000005D5000-memory.dmp

        memory/4472-75-0x0000000000400000-0x00000000005D5000-memory.dmp

        memory/4472-76-0x00000000008D0000-0x0000000000918000-memory.dmp

        memory/4472-78-0x00000000008D0000-0x0000000000918000-memory.dmp

        memory/4472-80-0x0000000000400000-0x0000000000438000-memory.dmp