Overview

overview

10

Static

static

3

2026-04-20...ar.exe

windows10-2004-x64

10

2026-04-20...ar.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
    20/04/2026, 03:47

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    2026-04-20_83f9d7258d9f89cd6c4928cbf4c3c521_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
  • Size 2.1MB
  • Sample260420-eck7sagt6j
  • SHA256 48e61800f631fe20908de2bc72466b12f1fdcf368d360d4f476afd813d453847
  • 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\2026-04-20_83f9d7258d9f89cd6c4928cbf4c3c521_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-20_83f9d7258d9f89cd6c4928cbf4c3c521_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:3324
    • C:\Windows\SysWOW64\netudf.exe
      C:\Windows\SysWOW64\netudf.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4104
  • C:\Windows\SysWOW64\syshost.exe
    C:\Windows\SysWOW64\syshost.exe ors
    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:4448
  • C:\Windows\SysWOW64\syshost.exe
    C:\Windows\SysWOW64\syshost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4192
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 504
      2⤵
      • Program crash
      PID:4632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 652
      2⤵
      • Program crash
      PID:1712
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 672
      2⤵
      • Program crash
      PID:1548
  • C:\Windows\SysWOW64\netudf.exe
    C:\Windows\SysWOW64\netudf.exe
    1⤵
    • Executes dropped EXE
    PID:2868
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4192 -ip 4192
    1⤵
      PID:3264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4192 -ip 4192
      1⤵
        PID:5088
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4192 -ip 4192
        1⤵
          PID:4196

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

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

              netudf.exe
              • Path C:\Windows\SysWOW64\netudf.exe
              • Size 766KB
              • SHA256 96aafe7dd4184f5df2cade0bc0df67e86ae891022201de29668b949d5f5d1ca8
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              syshost.exe
              • Path C:\Windows\SysWOW64\syshost.exe
              • Size 2.1MB
              • SHA256 c2081cb4895e70bb750c6fc9acd3f384c377792469549038b6c99fae7e2f5d1c
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/3324-4-0x0000000000400000-0x0000000000420000-memory.dmp
              Download

              memory/3324-5-0x00000000025B0000-0x00000000025F8000-memory.dmp
              Download

              memory/3324-3-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/3324-2-0x00000000025B0000-0x00000000025F8000-memory.dmp
              Download

              memory/3324-1-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/3324-0-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4192-41-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4192-40-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4192-80-0x0000000002150000-0x0000000002198000-memory.dmp
              Download

              memory/4192-79-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4192-82-0x0000000002150000-0x0000000002198000-memory.dmp
              Download

              memory/4192-85-0x0000000000400000-0x0000000000438000-memory.dmp
              Download

              memory/4448-36-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download

              memory/4448-78-0x0000000000400000-0x00000000005D5000-memory.dmp
              Download