Analysis

  • max time kernel
    149s
  • max time network
    137s
  • 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-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:5776

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        nseB48F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nseB48F.tmp
        • Size 718B
        • SHA256 b03edd27d467d96ab54bd147a0d747ef3e34a14885295ff8365a84c6d4b65536
        • MD5 SHA1 SHA512 TLSH

        nseB4DF.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nseB4DF.tmp
        • Size 824B
        • SHA256 03c95478adbfad50fa22b89eb512ea4c5deb339fd19f156be1fcc0472ebfb983
        • MD5 SHA1 SHA512 TLSH

        nsfB677.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsfB677.tmp
        • Size 778B
        • SHA256 6c8a184f3d243fae9148e76b1bad8e76f6c3812e77a31ae3abffa0980aefb667
        • MD5 SHA1 SHA512 TLSH

        nsjB4FF.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsjB4FF.tmp
        • Size 877B
        • SHA256 b22175459245fe32b8c56a1883effb23db3f7177393519ee32dcbf207be95cc4
        • MD5 SHA1 SHA512 TLSH

        nsjB54E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsjB54E.tmp
        • Size 929B
        • SHA256 5848dbc26610edd17a4baeb2cf6a4e4e0dc3882fdc51bc4f7704398729bca620
        • MD5 SHA1 SHA512 TLSH

        nsjB59E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsjB59E.tmp
        • Size 1KB
        • SHA256 c05392c15ce6202376d22577de8c2c06137d7ac1913205f5734ede01957f7350
        • MD5 SHA1 SHA512 TLSH

        nsoB38F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsoB38F.tmp
        • Size 355B
        • SHA256 42fe6aede59d0b4629f96288d1ab22008aca8576815f9d70fdb91810e2fed48c
        • MD5 SHA1 SHA512 TLSH

        nspB56F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nspB56F.tmp
        • Size 979B
        • SHA256 32a9d990a60d04c056e6bdeab33b406ef3716331e4e65df36058650d4ba2ec3f
        • MD5 SHA1 SHA512 TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nstB310.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Time.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nstB310.tmp\Time.dll
        • Size 10KB
        • SHA256 b4a95a455e53372c59f91bc1b5fb9e5c8e4a10a506fa04aaf7be27048b30ae35
        • MD5 SHA1 SHA512 SSDEEP TLSH

        mt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nstB310.tmp\mt.dll
        • Size 5KB
        • SHA256 6dc2644a389feeef9e0ac65e2c8b01fc18ca6e53b253f10efffcb117e0a852dd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsisos.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nstB310.tmp\nsisos.dll
        • Size 5KB
        • SHA256 ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nstB49F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nstB49F.tmp
        • Size 773B
        • SHA256 6a1810a3e6845a80096c7f52f9d31a8837dd229cf4fc36b10e8e0e42c03aec61
        • MD5 SHA1 SHA512 TLSH

        cn.png

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16h2m5ny.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\16h2m5ny.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\16h2m5ny.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\16h2m5ny.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\16h2m5ny.default-release\user.js
        • Size 830B
        • SHA256 5088c8d113537c16d533412a84e4a1f3fe33227afbf5bbeb2913f39c432666a8
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\16h2m5ny.default-release\user.js
        • Size 523B
        • SHA256 7883197d32194325fc2925e0b9985cf81f5badf6a26a8d69958e389cb25328cf
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xlhu326a.Admin\user.js
        • Size 541B
        • SHA256 05d5cf3e66ea18d098039e67a8053f68db625a9c0c78abbac45405c9323f03b1
        • MD5 SHA1 SHA512 TLSH

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xlhu326a.Admin\user.js
        • Size 661B
        • SHA256 5a2fcfbedbde0eb077c53e118e1e589fb2635cff45a6efc5fc34c705c0fd755c
        • MD5 SHA1 SHA512 TLSH