Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    25/05/2026, 09:50

General

  • Target
    2026-05-25_2f57b9594774dc876a649b10e7602b7c_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
  • Size 2.2MB
  • Sample260525-ltwheags5t
  • SHA256 4698769b43d54f14068b979838c7e033752798e3de84edcccc361602d8071fe2
  • 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 5 IoCs
  • UPX dump on OEP (original entry point) 9 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 7 IoCs

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

  • 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\2026-05-25_2f57b9594774dc876a649b10e7602b7c_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-25_2f57b9594774dc876a649b10e7602b7c_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:2456
    • C:\Windows\SysWOW64\cfgdhcp.exe
      C:\Windows\SysWOW64\cfgdhcp.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4684
  • C:\Windows\SysWOW64\cfgdhcp.exe
    C:\Windows\SysWOW64\cfgdhcp.exe
    1⤵
    • Executes dropped EXE
    PID:4516
  • C:\Windows\SysWOW64\rasobj.exe
    C:\Windows\SysWOW64\rasobj.exe rvr
    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:1896
  • C:\Windows\SysWOW64\rasobj.exe
    C:\Windows\SysWOW64\rasobj.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1016
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1016 -s 524
      2⤵
      • Program crash
      PID:404
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1016 -s 684
      2⤵
      • Program crash
      PID:3212
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1016 -s 688
      2⤵
      • Program crash
      PID:572
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1016 -ip 1016
    1⤵
      PID:2612
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1016 -ip 1016
      1⤵
        PID:1296
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1016 -ip 1016
        1⤵
          PID:1560

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              mgrschd.scr

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

              cfgdhcp.exe

              • Path C:\Windows\SysWOW64\cfgdhcp.exe
              • Size 1.1MB
              • SHA256 9f3f58ba2ecb3859509a98ebdcd168690ccc04bebddba0e8ca1c49845f93ccd6
              • MD5 SHA1 SHA512 SSDEEP TLSH

              rasobj.exe

              • Path C:\Windows\SysWOW64\rasobj.exe
              • Size 2.2MB
              • SHA256 4698769b43d54f14068b979838c7e033752798e3de84edcccc361602d8071fe2
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/1016-85-0x0000000000400000-0x0000000000438000-memory.dmp

              memory/1016-77-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1016-39-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1896-35-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1896-76-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1896-78-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1896-80-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/2456-1-0x0000000000423000-0x0000000000424000-memory.dmp

              memory/2456-4-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/2456-3-0x0000000000400000-0x0000000000420000-memory.dmp

              memory/2456-2-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/2456-0-0x0000000000400000-0x00000000005DA000-memory.dmp