Overview

overview

10

Static

static

3

2026-04-23...ar.exe

windows10-2004-x64

10

2026-04-23...ar.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    23/04/2026, 09:36

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General

  • Target
    2026-04-23_0e29a4c47edf964a4ef4dc2f814136f0_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
  • Size 2.2MB
  • Sample260423-llevpagx71
  • SHA256 4773bff97e7fc6caadd42097693956fd79a3f51d65b4e15ad6057718c6ddd286
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
apt29aptbackdoorcollectiondefense_evasiondiscoveryminidukespywarestealer

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 1 IoCs
    backdooraptapt29
  • 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
  • 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\2026-04-23_0e29a4c47edf964a4ef4dc2f814136f0_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-23_0e29a4c47edf964a4ef4dc2f814136f0_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.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:432
    • C:\Windows\SysWOW64\monras.exe
      C:\Windows\SysWOW64\monras.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1780
  • C:\Windows\SysWOW64\hosturl.exe
    C:\Windows\SysWOW64\hosturl.exe xeu
    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:5300
  • C:\Windows\SysWOW64\hosturl.exe
    C:\Windows\SysWOW64\hosturl.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5264 -s 540
      2⤵
      • Program crash
      PID:5584
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5264 -s 532
      2⤵
      • Program crash
      PID:5732
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5264 -s 536
      2⤵
      • Program crash
      PID:6136
  • C:\Windows\SysWOW64\monras.exe
    C:\Windows\SysWOW64\monras.exe
    1⤵
    • Executes dropped EXE
    PID:5280
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5264 -ip 5264
    1⤵
      PID:5852
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5264 -ip 5264
      1⤵
        PID:5680
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5264 -ip 5264
        1⤵
          PID:5984

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

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

              hosturl.exe
              • Path C:\Windows\SysWOW64\hosturl.exe
              • Size 2.2MB
              • SHA256 c40ec1016b714e0315cb69312ac421005acd7f750eb9b70bc63b1989d6b4b789
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              monras.exe
              • Path C:\Windows\SysWOW64\monras.exe
              • Size 1.1MB
              • SHA256 233a9e2cc050f1fb1cf15b9db3a555125270b124a2ae0d1cab46dd465277e8a2
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/432-79-0x0000000002720000-0x0000000002D22000-memory.dmp
              Download

              memory/432-4-0x0000000000400000-0x0000000000420000-memory.dmp
              Download

              memory/432-3-0x00000000026D0000-0x0000000002718000-memory.dmp
              Download

              memory/432-2-0x0000000000400000-0x00000000005AF000-memory.dmp
              Download

              memory/432-5-0x0000000002720000-0x0000000002D22000-memory.dmp
              Download

              memory/432-0-0x0000000000400000-0x00000000005AF000-memory.dmp
              Download

              memory/432-80-0x00000000039B0000-0x00000000039CA000-memory.dmp
              Download

              memory/432-1-0x0000000000400000-0x00000000005AF000-memory.dmp
              Download

              memory/5264-84-0x0000000002700000-0x0000000002D02000-memory.dmp
              Download

              memory/5264-40-0x0000000000400000-0x00000000005AF000-memory.dmp
              Download

              memory/5264-41-0x0000000000400000-0x00000000005AF000-memory.dmp
              Download

              memory/5264-90-0x0000000000400000-0x0000000000438000-memory.dmp
              Download

              memory/5264-82-0x0000000000400000-0x0000000000420000-memory.dmp
              Download

              memory/5300-37-0x0000000000400000-0x00000000005AF000-memory.dmp
              Download

              memory/5300-83-0x00000000013E0000-0x00000000019E2000-memory.dmp
              Download

              memory/5300-81-0x0000000000400000-0x00000000005AF000-memory.dmp
              Download

              memory/5300-92-0x0000000000400000-0x0000000000420000-memory.dmp
              Download

              memory/5300-145-0x0000000000890000-0x00000000008AA000-memory.dmp
              Download

              memory/5300-144-0x00000000013E0000-0x00000000019E2000-memory.dmp
              Download