Analysis

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

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    27/05/2026, 10:20

General

  • Target
    2026-05-27_9c9f4a61110452e6ef66d52705d6cf56_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
  • Size 2.9MB
  • Sample260527-mdfmpadt7w
  • SHA256 466b67790133e28f8810dd1e7529abb362dc9c9b4eccb7026fb78d75e23f497e
  • 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 4 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 6 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\2026-05-27_9c9f4a61110452e6ef66d52705d6cf56_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-27_9c9f4a61110452e6ef66d52705d6cf56_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:2204
    • C:\Windows\SysWOW64\dhcpcms.exe
      C:\Windows\SysWOW64\dhcpcms.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1268
  • C:\Windows\SysWOW64\usbwm.exe
    C:\Windows\SysWOW64\usbwm.exe bic
    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:1648
  • C:\Windows\SysWOW64\dhcpcms.exe
    C:\Windows\SysWOW64\dhcpcms.exe
    1⤵
    • Executes dropped EXE
    PID:1516
  • C:\Windows\SysWOW64\usbwm.exe
    C:\Windows\SysWOW64\usbwm.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1364
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 524
      2⤵
      • Program crash
      PID:1444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 536
      2⤵
      • Program crash
      PID:3212
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 528
      2⤵
      • Program crash
      PID:1176
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1364 -ip 1364
    1⤵
      PID:4016
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1364 -ip 1364
      1⤵
        PID:3432
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1364 -ip 1364
        1⤵
          PID:4164

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              usbfw.scr

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

              dhcpcms.exe

              • Path C:\Windows\SysWOW64\dhcpcms.exe
              • Size 1.5MB
              • SHA256 b1e38c929672663d9ce7cf2dd783880228538d48ec1d58fd7b731936f90b3a33
              • MD5 SHA1 SHA512 SSDEEP TLSH

              usbwm.exe

              • Path C:\Windows\SysWOW64\usbwm.exe
              • Size 2.9MB
              • SHA256 5ff8d40bf39d09d5c2062507022ed6f228e6fcf762634f3e770ebef7c8509fd1
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/1364-77-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1364-78-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1364-80-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1364-82-0x0000000000400000-0x0000000000438000-memory.dmp

              memory/1648-35-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/1648-76-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/2204-5-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/2204-4-0x0000000000400000-0x0000000000420000-memory.dmp

              memory/2204-3-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/2204-2-0x0000000000400000-0x00000000005DA000-memory.dmp

              memory/2204-1-0x0000000000423000-0x0000000000424000-memory.dmp

              memory/2204-0-0x0000000000400000-0x00000000005DA000-memory.dmp