Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    19/04/2026, 18:18

General

  • Target
    2026-04-19_767bf419f9e4b414483d8d64a8725a12_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
  • Size 2.2MB
  • Sample260419-wxqrfadv4t
  • SHA256 18e6d42fa84fab6d987e88703ec687795446ec0ab50a546de7afcc2a8e3c0da6
  • 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 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
  • 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\2026-04-19_767bf419f9e4b414483d8d64a8725a12_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-19_767bf419f9e4b414483d8d64a8725a12_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:3852
    • C:\Windows\SysWOW64\tapiinf.exe
      C:\Windows\SysWOW64\tapiinf.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4448
  • C:\Windows\SysWOW64\msctf.exe
    C:\Windows\SysWOW64\msctf.exe 3og
    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:1564
  • C:\Windows\SysWOW64\tapiinf.exe
    C:\Windows\SysWOW64\tapiinf.exe
    1⤵
    • Executes dropped EXE
    PID:5108
  • C:\Windows\SysWOW64\msctf.exe
    C:\Windows\SysWOW64\msctf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4440
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 612
      2⤵
      • Program crash
      PID:4068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 656
      2⤵
      • Program crash
      PID:2476
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 592
      2⤵
      • Program crash
      PID:4880
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4440 -ip 4440
    1⤵
      PID:3468
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4440 -ip 4440
      1⤵
        PID:1660
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4440 -ip 4440
        1⤵
          PID:4056

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              pcms.scr

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

              msctf.exe

              • Path C:\Windows\SysWOW64\msctf.exe
              • Size 2.2MB
              • SHA256 fc76ae06e6829e5db82f6fd4f1155c093666feb6079ad886e8c49a20688d8913
              • MD5 SHA1 SHA512 SSDEEP TLSH

              tapiinf.exe

              • Path C:\Windows\SysWOW64\tapiinf.exe
              • Size 1.2MB
              • SHA256 b1e533bb33e8a7709d1d3e8c2268c9bab7a1909a3d7ec160281f65b69e160821
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/1564-78-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/1564-90-0x0000000000400000-0x0000000000420000-memory.dmp

              memory/1564-146-0x00000000012E0000-0x0000000001561000-memory.dmp

              memory/1564-84-0x00000000012E0000-0x0000000001561000-memory.dmp

              memory/1564-35-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/1564-164-0x00000000012E0000-0x0000000001561000-memory.dmp

              memory/3852-36-0x0000000002800000-0x0000000002A81000-memory.dmp

              memory/3852-156-0x0000000002800000-0x0000000002A81000-memory.dmp

              memory/3852-0-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/3852-2-0x0000000002610000-0x0000000002658000-memory.dmp

              memory/3852-4-0x0000000002800000-0x0000000002A81000-memory.dmp

              memory/3852-3-0x0000000000400000-0x0000000000420000-memory.dmp

              memory/3852-1-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/3852-82-0x0000000002800000-0x0000000002A81000-memory.dmp

              memory/3852-83-0x00000000030D0000-0x00000000031A3000-memory.dmp

              memory/4440-93-0x0000000000400000-0x0000000000438000-memory.dmp

              memory/4440-85-0x0000000002780000-0x0000000002A01000-memory.dmp

              memory/4440-87-0x0000000000730000-0x0000000000778000-memory.dmp

              memory/4440-79-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/4440-80-0x0000000000730000-0x0000000000778000-memory.dmp

              memory/4440-81-0x0000000000400000-0x0000000000420000-memory.dmp

              memory/4440-41-0x0000000000400000-0x00000000005AF000-memory.dmp

              memory/4440-40-0x0000000000400000-0x00000000005AF000-memory.dmp