Overview

overview

10

Static

static

10

2026-04-26..._s.exe

windows10-2004-x64

10

2026-04-26..._s.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    26/04/2026, 16:14

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General

  • Target
    2026-04-26_ce2ad38ab7e228cb6f3d0e29c928a414_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
  • Size 2.9MB
  • Sample260426-tp2gvsax41
  • SHA256 6f90b9c5d4b10b3713abbc006f497b38e6dcfd3ba66ec24be52f6d6ae721b27c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
apt29aptbackdoorcollectiondefense_evasiondiscoveryminidukespywarestealerupx

Malware Config

Signatures

  • Family: MiniDuke, CosmicDuke,TinyBaron

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

    backdoorminiduke
  • Detects MiniDuke aka CosmicDuke or TinyBaron 4 IoCs
    backdooraptapt29
  • UPX dump on OEP (original entry point) 8 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.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
    collection
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • 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.

    upx
  • Program crash 5 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.

    discovery
  • Modifies Control Panel 5 IoCs
    defense_evasion
  • 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\2026-04-26_ce2ad38ab7e228cb6f3d0e29c928a414_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-26_ce2ad38ab7e228cb6f3d0e29c928a414_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:3496
    • C:\Windows\SysWOW64\cmsfs.exe
      C:\Windows\SysWOW64\cmsfs.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:736
  • C:\Windows\SysWOW64\winusb.exe
    C:\Windows\SysWOW64\winusb.exe 515
    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:2164
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2164 -s 1376
      2⤵
      • Program crash
      PID:3532
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2164 -s 1384
      2⤵
      • Program crash
      PID:4132
  • C:\Windows\SysWOW64\cmsfs.exe
    C:\Windows\SysWOW64\cmsfs.exe
    1⤵
    • Executes dropped EXE
    PID:3164
  • C:\Windows\SysWOW64\winusb.exe
    C:\Windows\SysWOW64\winusb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:392
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 536
      2⤵
      • Program crash
      PID:2900
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 532
      2⤵
      • Program crash
      PID:4388
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 524
      2⤵
      • Program crash
      PID:2208
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 392 -ip 392
    1⤵
      PID:1672
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 392 -ip 392
      1⤵
        PID:5012
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 392 -ip 392
        1⤵
          PID:2472
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2164 -ip 2164
          1⤵
            PID:2752
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2164 -ip 2164
            1⤵
              PID:2660

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  nttapi.scr
                  • Path C:\Users\Admin\AppData\Local\Temp\nttapi.scr
                  • Size 3KB
                  • SHA256 47f3405ab0da5af125bcc6ebb6d17a1573b090c54d7a0a00630ec170ccc4b9d1
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download

                  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
                  Submit Download

                  cmsfs.exe
                  • Path C:\Windows\SysWOW64\cmsfs.exe
                  • Size 1.3MB
                  • SHA256 98532eedc1851b3e5dc2ba12d2a7a329d02f71d0c5a4e102957a74b8ee81b213
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  winusb.exe
                  • Path C:\Windows\SysWOW64\winusb.exe
                  • Size 2.9MB
                  • SHA256 ac31a5776f2264904e672c30fa4df31960a0dff84d95a3eadfb08f15b5298b16
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  memory/392-42-0x0000000000400000-0x00000000005DA000-memory.dmp
                  Download

                  memory/392-94-0x0000000000400000-0x0000000000438000-memory.dmp
                  Download

                  memory/392-86-0x00000000026B0000-0x00000000026F8000-memory.dmp
                  Download

                  memory/392-84-0x0000000000440000-0x00000000004FB000-memory.dmp
                  Download

                  memory/392-83-0x00000000026B0000-0x00000000026F8000-memory.dmp
                  Download

                  memory/392-82-0x0000000000400000-0x00000000005DA000-memory.dmp
                  Download

                  memory/2164-81-0x0000000000400000-0x00000000005DA000-memory.dmp
                  Download

                  memory/2164-89-0x0000000000440000-0x00000000004FB000-memory.dmp
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                  memory/2164-151-0x00000000015A0000-0x00000000015A7000-memory.dmp
                  Download

                  memory/2164-152-0x0000000000400000-0x0000000000438000-memory.dmp
                  Download

                  memory/2164-150-0x0000000000440000-0x00000000004FB000-memory.dmp
                  Download

                  memory/2164-38-0x0000000000400000-0x00000000005DA000-memory.dmp
                  Download

                  memory/3496-79-0x0000000000440000-0x00000000004FB000-memory.dmp
                  Download

                  memory/3496-5-0x0000000000440000-0x00000000004FB000-memory.dmp
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                  memory/3496-4-0x0000000000400000-0x0000000000420000-memory.dmp
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                  memory/3496-3-0x0000000000400000-0x00000000005DA000-memory.dmp
                  Download

                  memory/3496-2-0x0000000000400000-0x00000000005DA000-memory.dmp
                  Download

                  memory/3496-80-0x00000000038B0000-0x00000000038B7000-memory.dmp
                  Download

                  memory/3496-0-0x0000000000400000-0x00000000005DA000-memory.dmp
                  Download

                  memory/3496-1-0x0000000000423000-0x0000000000424000-memory.dmp
                  Download

                  memory/3496-6-0x0000000000400000-0x00000000005DA000-memory.dmp
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                  memory/3496-35-0x0000000000440000-0x00000000004FB000-memory.dmp
                  Download

                  memory/3496-159-0x0000000000440000-0x00000000004FB000-memory.dmp
                  Download

                  memory/3496-163-0x0000000000440000-0x00000000004FB000-memory.dmp
                  Download