Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    18/07/2026, 06:53

General

  • Target
    2026-07-18_9f5fbfbc5b9819614f26dc20a35bbfd0_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee.exe
  • Size 1.8MB
  • Sample260718-hn4eaaey2z
  • SHA256 67ea7ae014db6944b5d7d6b5a2f6ea6a6db7ab4ccf8c8a69aef20da91d1b12a4
  • 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 2 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
  • Program crash 3 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\2026-07-18_9f5fbfbc5b9819614f26dc20a35bbfd0_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-18_9f5fbfbc5b9819614f26dc20a35bbfd0_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_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:1132
    • C:\Windows\SysWOW64\usbobj.exe
      C:\Windows\SysWOW64\usbobj.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:560
  • C:\Windows\SysWOW64\pptpfw.exe
    C:\Windows\SysWOW64\pptpfw.exe azf
    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:4508
  • C:\Windows\SysWOW64\usbobj.exe
    C:\Windows\SysWOW64\usbobj.exe
    1⤵
    • Executes dropped EXE
    PID:452
  • C:\Windows\SysWOW64\pptpfw.exe
    C:\Windows\SysWOW64\pptpfw.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2560
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 504
      2⤵
      • Program crash
      PID:972
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 500
      2⤵
      • Program crash
      PID:5116
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 656
      2⤵
      • Program crash
      PID:5012
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2560 -ip 2560
    1⤵
      PID:4752
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2560 -ip 2560
      1⤵
        PID:1268
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2560 -ip 2560
        1⤵
          PID:2640

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              cmsdsp.scr

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

              pptpfw.exe

              • Path C:\Windows\SysWOW64\pptpfw.exe
              • Size 2.1MB
              • SHA256 6ae272052a327331f7bbab52c23f4a4710c7f3243d326ee7cb65961772d0cdcc
              • MD5 SHA1 SHA512 SSDEEP TLSH

              usbobj.exe

              • Path C:\Windows\SysWOW64\usbobj.exe
              • Size 1.9MB
              • SHA256 6392f805da0bd1377525f45b2704254e83c1f58f431e31f8f21a3bd6d907d2ac
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/1132-4-0x0000000000400000-0x0000000000420000-memory.dmp

              memory/1132-0-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/1132-3-0x0000000002210000-0x0000000002258000-memory.dmp

              memory/1132-2-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/1132-1-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/2560-79-0x0000000002190000-0x00000000021D8000-memory.dmp

              memory/2560-41-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/2560-42-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/2560-80-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/2560-82-0x0000000002190000-0x00000000021D8000-memory.dmp

              memory/2560-85-0x0000000000400000-0x0000000000438000-memory.dmp

              memory/4508-36-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/4508-78-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/4508-34-0x0000000000400000-0x00000000005AF000-memory.dmp