Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/05/2026, 04:28

General

  • Target
    2026-05-03_78d43442451294cf800a7374274b6682_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
  • Size 2.8MB
  • Sample260503-e35zwabw4z
  • SHA256 ab2726e5d8aea90968f878276c1de8c474c88a4b72ac16db67fcc124b0f7d076
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: MiniDuke, CosmicDuke,TinyBaron

    MiniDuke aka CosmicDuke or TinyBaron is a backdoor used by the APT29 group, written in C++.

  • Detects MiniDuke aka CosmicDuke or TinyBaron 3 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\2026-05-03_78d43442451294cf800a7374274b6682_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-03_78d43442451294cf800a7374274b6682_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:5048
    • C:\Windows\SysWOW64\tapiusb.exe
      C:\Windows\SysWOW64\tapiusb.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4308
  • C:\Windows\SysWOW64\cplsvc.exe
    C:\Windows\SysWOW64\cplsvc.exe v2c
    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:5000
  • C:\Windows\SysWOW64\tapiusb.exe
    C:\Windows\SysWOW64\tapiusb.exe
    1⤵
    • Executes dropped EXE
    PID:1640
  • C:\Windows\SysWOW64\cplsvc.exe
    C:\Windows\SysWOW64\cplsvc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3824
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3824 -s 536
      2⤵
      • Program crash
      PID:4468
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3824 -s 528
      2⤵
      • Program crash
      PID:5320
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3824 -s 700
      2⤵
      • Program crash
      PID:656
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3824 -ip 3824
    1⤵
      PID:3900
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3824 -ip 3824
      1⤵
        PID:1004
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3824 -ip 3824
        1⤵
          PID:1472

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              apicfg.scr

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

              cplsvc.exe

              • Path C:\Windows\SysWOW64\cplsvc.exe
              • Size 2.8MB
              • SHA256 f261e1d1f151359414afc05e3472514a19195d23f734a490208433e3045014c0
              • MD5 SHA1 SHA512 SSDEEP TLSH

              tapiusb.exe

              • Path C:\Windows\SysWOW64\tapiusb.exe
              • Size 1.5MB
              • SHA256 bf7d069e20eb17ac90115c8a3bbf771cce9d56a5719bd5f4781ee71ba21aff2d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/3824-43-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/3824-94-0x0000000000400000-0x0000000000438000-memory.dmp

              memory/3824-92-0x0000000000400000-0x0000000000420000-memory.dmp

              memory/3824-85-0x0000000002720000-0x000000000281E000-memory.dmp

              memory/3824-83-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/5000-36-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/5000-82-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/5000-146-0x0000000000440000-0x000000000053E000-memory.dmp

              memory/5000-147-0x0000000001F50000-0x0000000001FA1000-memory.dmp

              memory/5000-79-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/5000-87-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/5000-84-0x0000000000440000-0x000000000053E000-memory.dmp

              memory/5000-39-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/5048-2-0x00000000026F0000-0x0000000002738000-memory.dmp

              memory/5048-80-0x0000000000440000-0x000000000053E000-memory.dmp

              memory/5048-3-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/5048-81-0x00000000034B0000-0x0000000003501000-memory.dmp

              memory/5048-1-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/5048-5-0x0000000000440000-0x000000000053E000-memory.dmp

              memory/5048-0-0x0000000000400000-0x00000000005D5000-memory.dmp

              memory/5048-4-0x0000000000400000-0x0000000000420000-memory.dmp