Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    14/10/2026, 03:59

General

  • Target
    FM4ffx.exe
  • Size 319KB
  • Sample261014-ej56jaft4s
  • 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:2004

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        nseCE8F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nseCE8F.tmp
        • Size 718B
        • SHA256 99a327f8c4529bb9bddf1043147a8161b0682c8ec2a18230937eb9c687252abc
        • MD5 SHA1 SHA512 TLSH

        nseCEE1.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nseCEE1.tmp
        • Size 929B
        • SHA256 9c2335996ceb66a27605581f43a97cc4db9d6cb71bf33482992fde75e2f2fea7
        • MD5 SHA1 SHA512 TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsjCD20.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Time.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsjCD20.tmp\Time.dll
        • Size 10KB
        • SHA256 b4a95a455e53372c59f91bc1b5fb9e5c8e4a10a506fa04aaf7be27048b30ae35
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsjCD20.tmp\mt.dll
        • Size 5KB
        • SHA256 6dc2644a389feeef9e0ac65e2c8b01fc18ca6e53b253f10efffcb117e0a852dd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsisos.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsjCD20.tmp\nsisos.dll
        • Size 5KB
        • SHA256 ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nspCFC6.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nspCFC6.tmp
        • Size 523B
        • SHA256 a238081a76e7db3764fa1d707f688afa3e15021d28dfcade328344d317a0b0a9
        • MD5 SHA1 SHA512 TLSH

        nszCE6F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nszCE6F.tmp
        • Size 661B
        • SHA256 149d79b07683eab060da551caca6c8ceae9a98aac00d25d401f586b10a6411ed
        • MD5 SHA1 SHA512 TLSH

        nszD007.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nszD007.tmp
        • Size 679B
        • SHA256 3873cb55b178adb19aa745785b882dec484b7d7c61de9b446a37cb718e8be8aa
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\edapv89t.Admin\user.js
        • Size 597B
        • SHA256 d9cbe6ad8dfb494767ec7cff8eeec71c8ec877669d4287b39edb66014462b6d7
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\edapv89t.Admin\user.js
        • Size 979B
        • SHA256 4de89f9c2deb2f0eff42bd6744f6c5139b9f1fe5e9313da30615366957f12567
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\edapv89t.Admin\user.js
        • Size 1KB
        • SHA256 451124487141938fff3334b8f1a4ecd729160c89a20e7e70a041435b8a1a89ad
        • MD5 SHA1 SHA512 TLSH

        cn.png

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\hqbw6bhi.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\hqbw6bhi.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\hqbw6bhi.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\hqbw6bhi.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\hqbw6bhi.default-release\user.js
        • Size 468B
        • SHA256 1dcf0563e014e0258b7381064dc1ed900343397204ec28681bdb3fe7ae6dbeaf
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\hqbw6bhi.default-release\user.js
        • Size 729B
        • SHA256 f6a11e3cf3f0c0b6e842b7ec9754aed27af95f1ac45330c8fe73c45df726560e
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\hqbw6bhi.default-release\user.js
        • Size 830B
        • SHA256 d20f813e914105654038f4bccf5c73f2af447a37de797e667d4f68cb6ba2b8b7
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\hqbw6bhi.default-release\user.js
        • Size 411B
        • SHA256 44fc471d26f1dc98daff6f298b17d906365e634e04a72127f814cf0bc3235cca
        • MD5 SHA1 SHA512 TLSH