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
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-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) 6 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 4 IoCs

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

    upx
  • 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.

    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:4720
    • C:\Windows\SysWOW64\lsasrv.exe
      C:\Windows\SysWOW64\lsasrv.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3796
  • C:\Windows\SysWOW64\engcms.exe
    C:\Windows\SysWOW64\engcms.exe ros
    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:1116
  • C:\Windows\SysWOW64\lsasrv.exe
    C:\Windows\SysWOW64\lsasrv.exe
    1⤵
    • Executes dropped EXE
    PID:3492
  • C:\Windows\SysWOW64\engcms.exe
    C:\Windows\SysWOW64\engcms.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5436
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5436 -s 492
      2⤵
      • Program crash
      PID:1888
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5436 -s 644
      2⤵
      • Program crash
      PID:3956
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5436 -s 648
      2⤵
      • Program crash
      PID:4604
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5436 -ip 5436
    1⤵
      PID:4008
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5436 -ip 5436
      1⤵
        PID:1388
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 5436 -ip 5436
        1⤵
          PID:1444

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

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

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

              engcms.exe
              • Path C:\Windows\SysWOW64\engcms.exe
              • Size 2.9MB
              • SHA256 b4f8ee29a13909a49d166a101737d4179ea81228e48b633b052d5d6dcf7ae099
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              lsasrv.exe
              • Path C:\Windows\SysWOW64\lsasrv.exe
              • Size 770KB
              • SHA256 9b0d9cc2b45966fb292ca977fae36f804350c7e38faa6bc5819bad7542cea340
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/1116-142-0x0000000001F30000-0x0000000001F37000-memory.dmp
              Download

              memory/1116-141-0x00000000005C0000-0x00000000005D9000-memory.dmp
              Download

              memory/1116-75-0x0000000000400000-0x00000000005DA000-memory.dmp
              Download

              memory/4720-5-0x0000000000400000-0x00000000005DA000-memory.dmp
              Download

              memory/4720-0-0x0000000000400000-0x00000000005DA000-memory.dmp
              Download

              memory/4720-4-0x0000000000400000-0x0000000000420000-memory.dmp
              Download

              memory/4720-3-0x0000000000400000-0x00000000005DA000-memory.dmp
              Download

              memory/4720-78-0x00000000026E0000-0x00000000027B3000-memory.dmp
              Download

              memory/4720-80-0x0000000003BE0000-0x0000000003BE7000-memory.dmp
              Download

              memory/4720-79-0x00000000005C0000-0x00000000005D9000-memory.dmp
              Download

              memory/4720-2-0x0000000000400000-0x00000000005DA000-memory.dmp
              Download

              memory/4720-1-0x0000000000423000-0x0000000000424000-memory.dmp
              Download

              memory/5436-76-0x00000000025F0000-0x0000000002638000-memory.dmp
              Download

              memory/5436-77-0x0000000000400000-0x00000000005DA000-memory.dmp
              Download

              memory/5436-82-0x00000000025F0000-0x0000000002638000-memory.dmp
              Download

              memory/5436-88-0x0000000000400000-0x0000000000438000-memory.dmp
              Download