Analysis
- max time kernel
148s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/07/2026, 17:55
Static task
static1
Behavioral task
behavioral1
Sample
2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.exe
Resource
win11ltsc2024-20260709-en
General
- Target 2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.exe
- Size 486KB
- Sample260720-whyhqsat8m
- SHA256 e1f920907f926e8097ba3399fd38ad9561589dc8d6072d8d0b90fa49192ff963
- MD5 35a6ca90e31bc4f6b645dc8fb6ebf5c5
- SHA1 43242b4c99ea60f481c6f0229dff43c3da4f977e
- SHA512 19215db31521f5c59fb08ba5d5333936b9306ebc53f1fe598d7bdaee974e55a5aa9577a96cfb3b8558a4ba30bbc329bb2abf0fba2e7b0ecd0d18adc83a130f46
- SSDEEP 12288:frF2600C97YBldhHhEaCj3AyzCX2LXExJeUg:fro6s9srJQ8y10xMB
- TLSH T18DB4AD136A848032F57203361AA5BBB2052A7D615352F1F777917EBD6A73AC3E930237
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4568 B63B.tmp - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language B63B.tmp - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3797332335-34111092-3597280141-1000_Classes\Local Settings B63B.tmp - Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 1924 WINWORD.EXE 1924 WINWORD.EXE - Suspicious behavior: RenamesItself 1 IoCs
pid Process 4568 B63B.tmp - Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1924 WINWORD.EXE 1924 WINWORD.EXE 1924 WINWORD.EXE 1924 WINWORD.EXE 1924 WINWORD.EXE - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 5936 wrote to memory of 4568 5936 2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.exe 88 PID 4568 wrote to memory of 1924 4568 B63B.tmp 90 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5936 -
C:\Users\Admin\AppData\Local\Temp\B63B.tmp"C:\Users\Admin\AppData\Local\Temp\B63B.tmp" --helpC:\Users\Admin\AppData\Local\Temp\2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.exe EFFA3B020F4B867C821112E156F22653E190BB0073C6FE2F716454D091E00EAFAF4BC5A09E8B8CCAB3F5F85A57F2A953DB7CF2967DC41C41BE16595D316C537C2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4568 -
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.docx" /o ""3⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1924
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\2026-07-20_35a6ca90e31bc4f6b645dc8fb6ebf5c5_elex_mafia_stealc_tofsee.docx
- Size 140KB
- SHA256 ca91bbd477e2a516997c48dde3da1a5eae4cad86ca664fea54f0103739073c94
- MD5 e90e498009a13ae957dcde4e01065e7d
- SHA1 dcb4cc9b7d1ed3becc625597422d60aaf068a759
- SHA512 4d0868f653e6c57d4011430ab81688f4f039550a9a0b5b1ce5ab1a695cb1dca7d7cdfb1d7c3920c35bbd3a8b441c820f00ae4e71f749650545ddd6894d597766
- SSDEEP 1536:0lllllllllllllllllllllllllllllollllllllllllllllllllllllllllllUlX:gh7z
- TLSH T15EE3B14F3FB19143FE9B6E7454E950163929BCE45901D207B8423ADA877B6BA4C30A2F
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\B63B.tmp
- Size 486KB
- SHA256 0a9545796f0f64b44dd8d174e158bd5b426a5092e38e98302dd8e21ed4ea602c
- MD5 08e32e174d74638167151f3d51528e9e
- SHA1 4ee93574935d3dccb4afc7a07ad67e063bf3b608
- SHA512 ec305c541451b1a1185f26026bb040c143c6df12310a038e11540e6c6bae408632def014b7f8b3171bb1aee62e8d59882d7dbb132ddeed597d41b39452bf339a
- SSDEEP 6144:fpzhInoFPRsVmVE600C978/UyiUpZ14/th1QFPwQ8pnUVnp4SVsHpeUmZ:frF2600C97zqpmth1QF4lCSJeUg
- TLSH T1D6B4BD136A448021F172033616A5FB71152A7D615712F0F77BA57EBE6A73AC3EA3023B
- MD5 SHA1 SHA512 SSDEEP TLSH