Overview

overview

10

Static

static

3

2026-04-24...ar.exe

windows10-2004-x64

10

2026-04-24...ar.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    158s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    24/04/2026, 10:38

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General

  • Target
    2026-04-24_96dd6b1f928b8abc55e33f4158f26208_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
  • Size 3.0MB
  • Sample260424-mpql2aez8s
  • SHA256 916271b7d70612eb90d850c0bd964e08855d15f0d8b2cbdc8919b129e87b8464
  • 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 5 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\2026-04-24_96dd6b1f928b8abc55e33f4158f26208_cosmicduke_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_tofsee_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-24_96dd6b1f928b8abc55e33f4158f26208_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:4136
    • C:\Windows\SysWOW64\rasurl.exe
      C:\Windows\SysWOW64\rasurl.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2512
  • C:\Windows\SysWOW64\fssql.exe
    C:\Windows\SysWOW64\fssql.exe 0i5
    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:548
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 548 -s 1452
      2⤵
      • Program crash
      PID:432
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 548 -s 1468
      2⤵
      • Program crash
      PID:3300
  • C:\Windows\SysWOW64\rasurl.exe
    C:\Windows\SysWOW64\rasurl.exe
    1⤵
    • Executes dropped EXE
    PID:1908
  • C:\Windows\SysWOW64\fssql.exe
    C:\Windows\SysWOW64\fssql.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 540
      2⤵
      • Program crash
      PID:2340
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 532
      2⤵
      • Program crash
      PID:1060
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 696
      2⤵
      • Program crash
      PID:2324
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1860 -ip 1860
    1⤵
      PID:3824
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1860 -ip 1860
      1⤵
        PID:1752
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1860 -ip 1860
        1⤵
          PID:724
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 548 -ip 548
          1⤵
            PID:4236
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 548 -ip 548
            1⤵
              PID:4364

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

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

                  svcsrv.exe
                  • Path C:\Users\Admin\AppData\Local\Temp\svcsrv.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

                  fssql.exe
                  • Path C:\Windows\SysWOW64\fssql.exe
                  • Size 3.0MB
                  • SHA256 6968d07f53226d4ee79813ab010aed28d610a71bdf4efbadef309bcb28870b52
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  rasurl.exe
                  • Path C:\Windows\SysWOW64\rasurl.exe
                  • Size 1.6MB
                  • SHA256 a670e8c8c164fa98583d592a70c8ef79e358b9fc8e56fadc3011079058ae942d
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  memory/548-41-0x0000000000400000-0x00000000005D5000-memory.dmp
                  Download

                  memory/548-151-0x0000000000400000-0x0000000000438000-memory.dmp
                  Download

                  memory/548-149-0x0000000000440000-0x00000000004FB000-memory.dmp
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                  memory/548-150-0x0000000001130000-0x0000000001194000-memory.dmp
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                  memory/548-88-0x0000000000440000-0x00000000004FB000-memory.dmp
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                  memory/548-81-0x0000000000400000-0x00000000005D5000-memory.dmp
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                  memory/1860-39-0x0000000000400000-0x00000000005D5000-memory.dmp
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                  memory/1860-83-0x0000000000400000-0x00000000005D5000-memory.dmp
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                  memory/1860-92-0x0000000000400000-0x0000000000438000-memory.dmp
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                  memory/1860-89-0x0000000000440000-0x00000000004FB000-memory.dmp
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                  memory/1860-87-0x0000000000400000-0x00000000005D5000-memory.dmp
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                  memory/1860-82-0x0000000000400000-0x00000000005D5000-memory.dmp
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                  memory/4136-80-0x0000000000550000-0x00000000005B4000-memory.dmp
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                  memory/4136-85-0x0000000000440000-0x00000000004FB000-memory.dmp
                  Download

                  memory/4136-1-0x0000000000400000-0x00000000005D5000-memory.dmp
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                  memory/4136-2-0x0000000000400000-0x00000000005D5000-memory.dmp
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                  memory/4136-5-0x0000000000440000-0x00000000004FB000-memory.dmp
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                  memory/4136-79-0x0000000000440000-0x00000000004FB000-memory.dmp
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                  memory/4136-3-0x0000000002210000-0x0000000002258000-memory.dmp
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                  memory/4136-4-0x0000000000400000-0x0000000000420000-memory.dmp
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                  memory/4136-0-0x0000000000400000-0x00000000005D5000-memory.dmp
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                  memory/4136-158-0x0000000000440000-0x00000000004FB000-memory.dmp
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