Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/10/2026, 03:59

General

  • Target
    FM4ffx.exe
  • Size 319KB
  • Sample261014-ej8awsx1gw
  • SHA256 3ac3c700060a0487060724f3fd22faf70d5f633e69401641964d7ba4d6e6e570
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 64 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

Processes

  • C:\Users\Admin\AppData\Local\Temp\FM4ffx.exe
    "C:\Users\Admin\AppData\Local\Temp\FM4ffx.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    PID:3392

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        nsa36C4.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsa36C4.tmp
        • Size 979B
        • SHA256 f28839b33fb2ff8f17317756988fc73c4037fa4b7da30d268ef8556a7989fe27
        • MD5 SHA1 SHA512 TLSH

        nsb3854.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsb3854.tmp
        • Size 523B
        • SHA256 91e55e4de44aef7596f5b7f2bd8da289d4b663542602a87465e51b2b1d6d12b5
        • MD5 SHA1 SHA512 TLSH

        nse350A.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nse350A.tmp
        • Size 773B
        • SHA256 3eaea8c7e7da3277fa6561e96e1eb88f4b5aa764ef6d7bdfd9e481bce1aadb80
        • MD5 SHA1 SHA512 TLSH

        nsf3646.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsf3646.tmp
        • Size 929B
        • SHA256 ccc28b3f8bf91259f0b50d7166f0aaf43035da60bf46f121048f6b060e8ed499
        • MD5 SHA1 SHA512 TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsi3213.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Time.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsi3213.tmp\Time.dll
        • Size 10KB
        • SHA256 b4a95a455e53372c59f91bc1b5fb9e5c8e4a10a506fa04aaf7be27048b30ae35
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsi3213.tmp\mt.dll
        • Size 5KB
        • SHA256 6dc2644a389feeef9e0ac65e2c8b01fc18ca6e53b253f10efffcb117e0a852dd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsisos.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsi3213.tmp\nsisos.dll
        • Size 5KB
        • SHA256 ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsl37F4.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsl37F4.tmp
        • Size 411B
        • SHA256 b1556307b9ead45dbeaf29ea9d8df11add8e5a9ae6ed43d7d9915ba52269262f
        • MD5 SHA1 SHA512 TLSH

        nsq3723.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsq3723.tmp
        • Size 1KB
        • SHA256 2e0b8d50e1846e7567c9d6629f055997121b341d696667bf085c39a918f5057a
        • MD5 SHA1 SHA512 TLSH

        nsv37E1.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsv37E1.tmp
        • Size 236B
        • SHA256 29ccb95b0b400b72cb85c97689847b33306c8ee6bea80cd90899e3766977d8c4
        • MD5 SHA1 SHA512 TLSH

        nsz349C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsz349C.tmp
        • Size 718B
        • SHA256 ff0bb629d72f19e994d5f17ef0d90cb2fa3a4d9a9eaadcef61d6709118490378
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\roe4b6uz.Admin\user.js
        • Size 431B
        • SHA256 d8510e77e866f706f4f0f65b3f21c0517e5be0b9cb78ee7efb384b72210c237b
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\roe4b6uz.Admin\user.js
        • Size 661B
        • SHA256 744ca8b05181573578b476566985d24573f88840fe22970613c2e5d7d79855bf
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\roe4b6uz.Admin\user.js
        • Size 877B
        • SHA256 d125160fa056585289a49de642cd0c51a9794e30712e6bb41f8c9c1e905bd548
        • MD5 SHA1 SHA512 TLSH

        cn.png

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\v0mjt9aw.default-release\extensions\[email protected]\content\imgs\flgs\cn.png
        • Size 472B
        • SHA256 7058233b5bdfdd4279e92e9dfe64bd4a61afd7e76d97dba498ce1d5777b92185
        • MD5 SHA1 SHA512 TLSH

        il.png

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\v0mjt9aw.default-release\extensions\[email protected]\content\imgs\flgs\il.png
        • Size 431B
        • SHA256 5432e244f03e3973153451b1ec88d649459580eab66e2df936fe2f70f2fed823
        • MD5 SHA1 SHA512 TLSH

        jp.png

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\v0mjt9aw.default-release\extensions\[email protected]\content\imgs\flgs\jp.png
        • Size 420B
        • SHA256 5efce88ac7228ea159bcf7fd1cc56d73c19428394218706524bac0e9151d4c61
        • MD5 SHA1 SHA512 TLSH

        us.png

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\v0mjt9aw.default-release\extensions\[email protected]\content\imgs\flgs\us.png
        • Size 609B
        • SHA256 36cce5cae3d2e0045b2b2b6cbffdad7a0aba3e99919cc219bbf0578efdc45585
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\v0mjt9aw.default-release\user.js
        • Size 729B
        • SHA256 3450d043fe110c36293fcaf752bba3417a51fe456a011d21ba5423e10db20a46
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\v0mjt9aw.default-release\user.js
        • Size 830B
        • SHA256 3cf163e7f091d9fa2490f72705da07dab948476759b118cd71b284511a045510
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\v0mjt9aw.default-release\user.js
        • Size 468B
        • SHA256 da4ffa959c43b957d7a40464269ed0ffc11ca98b34a4a89b0ac3e6c728c2f0ca
        • MD5 SHA1 SHA512 TLSH