Overview

overview

10

Static

static

3

2026-04-18...ar.exe

windows10-2004-x64

10

2026-04-18...ar.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    18/04/2026, 04:28

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General

  • Target
    2026-04-18_0e6a842763fab4bb36753479b1a63834_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
  • Size 2.0MB
  • Sample260418-e3r31sgw3x
  • SHA256 e548ed6c8d3d4772ef9e07391c01e117c135b4532a222d31e36cac515fe44a23
  • 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 3 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\2026-04-18_0e6a842763fab4bb36753479b1a63834_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-18_0e6a842763fab4bb36753479b1a63834_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:4900
    • C:\Windows\SysWOW64\objui.exe
      C:\Windows\SysWOW64\objui.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1708
  • C:\Windows\SysWOW64\usbpc.exe
    C:\Windows\SysWOW64\usbpc.exe azo
    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:4872
  • C:\Windows\SysWOW64\objui.exe
    C:\Windows\SysWOW64\objui.exe
    1⤵
    • Executes dropped EXE
    PID:2476
  • C:\Windows\SysWOW64\usbpc.exe
    C:\Windows\SysWOW64\usbpc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2568
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 536
      2⤵
      • Program crash
      PID:2308
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 528
      2⤵
      • Program crash
      PID:780
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 692
      2⤵
      • Program crash
      PID:4468
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2568 -ip 2568
    1⤵
      PID:884
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2568 -ip 2568
      1⤵
        PID:4932
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2568 -ip 2568
        1⤵
          PID:1148

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

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

              objui.exe
              • Path C:\Windows\SysWOW64\objui.exe
              • Size 1.9MB
              • SHA256 d2d89c5a380cb66ae2deedf40325fca78f4e1bf6fa97024ab931cc411f88c6df
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              usbpc.exe
              • Path C:\Windows\SysWOW64\usbpc.exe
              • Size 2.0MB
              • SHA256 31ebe87eff6ed59e5e6789a0cf07daeaf0457170d68d7e899c1a74f866e0b327
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/2568-86-0x0000000002730000-0x00000000029BB000-memory.dmp
              Download

              memory/2568-81-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/2568-95-0x0000000000400000-0x0000000000438000-memory.dmp
              Download

              memory/2568-93-0x0000000000400000-0x0000000000420000-memory.dmp
              Download

              memory/2568-42-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/2568-43-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4872-88-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4872-38-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4872-171-0x00000000013F0000-0x000000000167B000-memory.dmp
              Download

              memory/4872-85-0x00000000013F0000-0x000000000167B000-memory.dmp
              Download

              memory/4872-80-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4872-79-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4872-82-0x0000000000400000-0x0000000000420000-memory.dmp
              Download

              memory/4872-147-0x00000000013F0000-0x000000000167B000-memory.dmp
              Download

              memory/4872-148-0x00000000005B0000-0x00000000005CA000-memory.dmp
              Download

              memory/4900-84-0x0000000002F90000-0x0000000002FAA000-memory.dmp
              Download

              memory/4900-1-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4900-0-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4900-83-0x0000000002720000-0x00000000029AB000-memory.dmp
              Download

              memory/4900-4-0x0000000000400000-0x0000000000420000-memory.dmp
              Download

              memory/4900-3-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4900-35-0x0000000002720000-0x00000000029AB000-memory.dmp
              Download

              memory/4900-5-0x0000000002720000-0x00000000029AB000-memory.dmp
              Download

              memory/4900-161-0x0000000002720000-0x00000000029AB000-memory.dmp
              Download

              memory/4900-2-0x00000000026D0000-0x0000000002718000-memory.dmp
              Download