Analysis

  • max time kernel
    149s
  • max time network
    117s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/05/2026, 11:14

General

  • Target
    2026-05-17_f76526302cbc8807376ed01d9cf0db7f_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
  • Size 2.9MB
  • Sample260517-nb36msfv31
  • SHA256 b8e9358d1d6076631186eeb2e0b00af6968a701a50d715a8474b73ac1108e744
  • 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) 7 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 5 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\2026-05-17_f76526302cbc8807376ed01d9cf0db7f_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-17_f76526302cbc8807376ed01d9cf0db7f_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:1952
    • C:\Windows\SysWOW64\udfip.exe
      C:\Windows\SysWOW64\udfip.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4980
  • C:\Windows\SysWOW64\cfgsql.exe
    C:\Windows\SysWOW64\cfgsql.exe 1fd
    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:3100
  • C:\Windows\SysWOW64\udfip.exe
    C:\Windows\SysWOW64\udfip.exe
    1⤵
    • Executes dropped EXE
    PID:2996
  • C:\Windows\SysWOW64\cfgsql.exe
    C:\Windows\SysWOW64\cfgsql.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 536
      2⤵
      • Program crash
      PID:1524
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 528
      2⤵
      • Program crash
      PID:4344
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 640
      2⤵
      • Program crash
      PID:3832
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4440 -ip 4440
    1⤵
      PID:1924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4440 -ip 4440
      1⤵
        PID:2488
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4440 -ip 4440
        1⤵
          PID:5060

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              cplcms.exe

              • Path C:\Users\Admin\AppData\Local\Temp\cplcms.exe
              • Size 5KB
              • SHA256 5b50e26a01b320f05d66727e9d220d5858cdac203ff62e4b9ced1cafc2683637
              • MD5 SHA1 SHA512 SSDEEP TLSH

              monusb.scr

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

              cfgsql.exe

              • Path C:\Windows\SysWOW64\cfgsql.exe
              • Size 2.9MB
              • SHA256 ceebd217c0fb6a5a38f22dc9c29d0ebe2e070a0c3d64ee9acd053f8021a9e081
              • MD5 SHA1 SHA512 SSDEEP TLSH

              udfip.exe

              • Path C:\Windows\SysWOW64\udfip.exe
              • Size 982KB
              • SHA256 e86f99cba03b56a41aa647cbb57f6cb2029af5ac67e89ad66dd3310376511cea
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/1952-5-0x0000000000400000-0x0000000000420000-memory.dmp

              memory/1952-6-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1952-0-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1952-4-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1952-2-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1952-1-0x0000000000423000-0x0000000000424000-memory.dmp

              memory/3100-76-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/4440-77-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/4440-78-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/4440-79-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/4440-81-0x0000000000400000-0x0000000000438000-memory.dmp