Overview

overview

10

Static

static

10

2026-05-27..._s.exe

windows10-2004-x64

10

2026-05-27..._s.exe

windows11-21h2-x64

10

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
    27/05/2026, 10:16

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General

  • Target
    2026-05-27_8d4b22e99c034bc23978e2d8e03ac84e_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
  • Size 2.5MB
  • Sample260527-ma3caads9t
  • SHA256 b3e8402c8bfa7a742fcb40ac893c8f5c046e5c787a54e8bda134927c0b5ffe62
  • 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 5 IoCs
    backdooraptapt29
  • Custom signature
    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.

    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 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\2026-05-27_8d4b22e99c034bc23978e2d8e03ac84e_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-27_8d4b22e99c034bc23978e2d8e03ac84e_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:2888
    • C:\Windows\SysWOW64\srvurl.exe
      C:\Windows\SysWOW64\srvurl.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4848
  • C:\Windows\SysWOW64\dnsudf.exe
    C:\Windows\SysWOW64\dnsudf.exe sww
    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:3376
  • C:\Windows\SysWOW64\srvurl.exe
    C:\Windows\SysWOW64\srvurl.exe
    1⤵
    • Executes dropped EXE
    PID:3404
  • C:\Windows\SysWOW64\dnsudf.exe
    C:\Windows\SysWOW64\dnsudf.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5584
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5584 -s 528
      2⤵
      • Program crash
      PID:4276
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5584 -s 536
      2⤵
      • Program crash
      PID:4092
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5584 -s 688
      2⤵
      • Program crash
      PID:5412
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5584 -ip 5584
    1⤵
      PID:4352
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 5584 -ip 5584
      1⤵
        PID:2160
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 5584 -ip 5584
        1⤵
          PID:3748

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              udfsql.scr
              • Path C:\Users\Admin\AppData\Local\Temp\udfsql.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

              dnsudf.exe
              • Path C:\Windows\SysWOW64\dnsudf.exe
              • Size 2.5MB
              • SHA256 70d8e942eb10f7a5a5041eb168758b9a1667ad03fad72f0a13b8d208c3f17d57
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              srvurl.exe
              • Path C:\Windows\SysWOW64\srvurl.exe
              • Size 1.7MB
              • SHA256 5ba6f6a4c8d9b75afe7c79fc7438e832fb68fc9727b668a905ca4473ac1c1921
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/2888-4-0x0000000000400000-0x0000000000420000-memory.dmp
              Download

              memory/2888-5-0x0000000000400000-0x00000000005B4000-memory.dmp
              Download

              memory/2888-0-0x0000000000400000-0x00000000005B4000-memory.dmp
              Download

              memory/2888-3-0x0000000000400000-0x00000000005B4000-memory.dmp
              Download

              memory/2888-2-0x0000000000400000-0x00000000005B4000-memory.dmp
              Download

              memory/2888-1-0x0000000000423000-0x0000000000424000-memory.dmp
              Download

              memory/3376-35-0x0000000000400000-0x00000000005B4000-memory.dmp
              Download

              memory/3376-76-0x0000000000400000-0x00000000005B4000-memory.dmp
              Download

              memory/3376-77-0x0000000000400000-0x00000000005B4000-memory.dmp
              Download

              memory/3376-80-0x0000000000400000-0x00000000005B4000-memory.dmp
              Download

              memory/5584-78-0x0000000000400000-0x00000000005B4000-memory.dmp
              Download

              memory/5584-83-0x0000000000400000-0x0000000000438000-memory.dmp
              Download