Analysis

  • max time kernel
    35s
  • max time network
    39s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/06/2024, 17:06

General

  • Target
    FMmain.exe
  • Size 106.5MB
  • Sample240608-vmlt3adf2z
  • SHA256 9db95e638d73aee4722aced1f2483535335b4f619dae5ffab47890eb28696f9d
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 64 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FMmain.exe
    "C:\Users\Admin\AppData\Local\Temp\FMmain.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2304
    • C:\Users\Admin\AppData\Local\Temp\FMmain.exe
      "C:\Users\Admin\AppData\Local\Temp\FMmain.exe"
      2⤵
      • Loads dropped DLL
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1420
      • C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\QtWebEngineProcess.exe
        "C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\QtWebEngineProcess.exe" --type=utility --enable-features=AllowContentInitiatedDataUrlNavigations,TracingServiceInProcess --disable-features=BackgroundFetch,ConsolidatedMovementXY,DnsOverHttpsUpgrade,FormControlsRefresh,MojoVideoCapture,PictureInPicture,SmsReceiver,UseSkiaRenderer,WebPayments,WebUSB --lang=en-US --service-sandbox-type=network --use-gl=angle --application-name=FM%20Browser --webengine-schemes=qrc:sLV --mojo-platform-channel-handle=2400 /prefetch:8
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        PID:2328
      • C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\QtWebEngineProcess.exe
        "C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\QtWebEngineProcess.exe" --type=renderer --disable-speech-api --enable-threaded-compositing --enable-features=AllowContentInitiatedDataUrlNavigations,TracingServiceInProcess --disable-features=BackgroundFetch,ConsolidatedMovementXY,DnsOverHttpsUpgrade,FormControlsRefresh,MojoVideoCapture,PictureInPicture,SmsReceiver,UseSkiaRenderer,WebPayments,WebUSB --lang=en-US --webengine-schemes=qrc:sLV --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=3 --mojo-platform-channel-handle=2464 /prefetch:1
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:4928

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        CURRENT

        • Path C:\Users\Admin\AppData\Local\FM Browser\QtWebEngine\Default\Local Storage\leveldb\CURRENT
        • Size 16B
        • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
        • MD5 SHA1 SHA512

        index.txt

        • Path C:\Users\Admin\AppData\Local\FM Browser\QtWebEngine\Default\Service Worker\CacheStorage\379f1cbab5b08b6fc9e08681e42d8be311441c88\index.txt
        • Size 107B
        • SHA256 0ec1cea563030ead99f282fbb3b2a5d1db8a6505bc99a5af3c8913523e354381
        • MD5 SHA1 SHA512

        index.txt.tmp

        • Path C:\Users\Admin\AppData\Local\FM Browser\QtWebEngine\Default\Service Worker\CacheStorage\379f1cbab5b08b6fc9e08681e42d8be311441c88\index.txt.tmp
        • Size 182B
        • SHA256 34975cc2f248d10e93583799eca649b8bdaf0c59746f7be5c53c3445c0d57f5c
        • MD5 SHA1 SHA512

        index.txt.tmp

        • Path C:\Users\Admin\AppData\Local\FM Browser\QtWebEngine\Default\Service Worker\CacheStorage\379f1cbab5b08b6fc9e08681e42d8be311441c88\index.txt.tmp
        • Size 191B
        • SHA256 3788ef9174e19addcaff9955054ca39dc1b38fb17bee38228bf2e0af24837821
        • MD5 SHA1 SHA512

        index.txt.tmp

        • Path C:\Users\Admin\AppData\Local\FM Browser\QtWebEngine\Default\Service Worker\CacheStorage\379f1cbab5b08b6fc9e08681e42d8be311441c88\index.txt.tmp
        • Size 100B
        • SHA256 b61bdf40ead297cdf29b0067193ceb478750405a486b974d0cb01f2da65bf670
        • MD5 SHA1 SHA512

        MANIFEST-000001

        • Path C:\Users\Admin\AppData\Local\FM Browser\QtWebEngine\Default\Session Storage\MANIFEST-000001
        • Size 41B
        • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
        • MD5 SHA1 SHA512

        MSVCP140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\MSVCP140.dll
        • Size 576KB
        • SHA256 88f55d86b50b0a7e55e71ad2d8f7552146ba26e927230daf2e26ad3a971973c5
        • MD5 SHA1 SHA512 SSDEEP

        MSVCP140_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\MSVCP140_1.dll
        • Size 30KB
        • SHA256 446c48c1224c289bd3080087fe15d6759416d64f4136addf30086abd5415d83f
        • MD5 SHA1 SHA512 SSDEEP

        Qt5Core.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5Core.dll
        • Size 5.7MB
        • SHA256 8d2ff4ce9096ddccc4f4cd62c2e41fc854cfd1b0d6e8d296645a7f5fd4ae565a
        • MD5 SHA1 SHA512 SSDEEP

        Qt5Gui.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5Gui.dll
        • Size 6.7MB
        • SHA256 5e7d2d41b8b92a880e83b8cc0ca173f5da61218604186196787ee1600956be1e
        • MD5 SHA1 SHA512 SSDEEP

        Qt5Network.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5Network.dll
        • Size 1.3MB
        • SHA256 4ef341ae9302e793878020f0740b09b0f31cb380408a697f75c69fdbd20fc7a1
        • MD5 SHA1 SHA512 SSDEEP

        Qt5Positioning.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5Positioning.dll
        • Size 308KB
        • SHA256 8889372b8880e9ab78b86d863cfb1a7c4e22cfaa5360d3761bd03b9de10228bd
        • MD5 SHA1 SHA512 SSDEEP

        Qt5PrintSupport.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5PrintSupport.dll
        • Size 309KB
        • SHA256 783d4f1feb8dc0bc00acb8c094d6c1ab39ac6b5858874e60dd3d45677af4307a
        • MD5 SHA1 SHA512 SSDEEP

        Qt5Qml.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5Qml.dll
        • Size 3.4MB
        • SHA256 30035484c81590976627f8face9507caa8581a7dc7630cccf6a8d6de65cab707
        • MD5 SHA1 SHA512 SSDEEP

        Qt5QmlModels.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5QmlModels.dll
        • Size 428KB
        • SHA256 51e4e5a5e91f78774c44f69b599fae4735277ef2918f7061778615cb5c4f6e81
        • MD5 SHA1 SHA512 SSDEEP

        Qt5Quick.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5Quick.dll
        • Size 4.0MB
        • SHA256 c81ad3c1111544064b1830c6f1aef3c1fd13b401546ab3b852d697c0f4d854b3
        • MD5 SHA1 SHA512 SSDEEP

        Qt5QuickWidgets.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5QuickWidgets.dll
        • Size 80KB
        • SHA256 d82e8df844ac7b1d0a71a897ce7c93ba8601bfee6413c8a1206b0b7cbf69d02f
        • MD5 SHA1 SHA512 SSDEEP

        Qt5WebChannel.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5WebChannel.dll
        • Size 130KB
        • SHA256 b4779c806f60183899c2027dd919c133062de83f7395aa40c1c32e6c6498de37
        • MD5 SHA1 SHA512 SSDEEP

        Qt5WebEngineWidgets.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5WebEngineWidgets.dll
        • Size 244KB
        • SHA256 2bd29d50306ac49f1df65c22e736a873f3021a0fb65f950271161a2609056e1f
        • MD5 SHA1 SHA512 SSDEEP

        Qt5Widgets.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\Qt5Widgets.dll
        • Size 5.2MB
        • SHA256 3788c669d4b645e5a576de9fc77fca776bf516d43c89143dc2ca28291ba14358
        • MD5 SHA1 SHA512 SSDEEP

        VCRUNTIME140_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\bin\VCRUNTIME140_1.dll
        • Size 43KB
        • SHA256 1f0f5f2ce671e0f68cf96176721df0e5e6f527c8ca9cfa98aa875b5a3816d460
        • MD5 SHA1 SHA512 SSDEEP

        qtlocation_en.qm

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\Qt5\translations\qtlocation_en.qm
        • Size 16B
        • SHA256 9959b510b15d18937848ad13007e30459d2e993c67e564badbfc18f935695c85
        • MD5 SHA1 SHA512

        QtCore.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\QtCore.pyd
        • Size 2.4MB
        • SHA256 5a2aed6f96abec6905e6a36d33bc00d2c23e13f6333ea0545a32ab57b33a7c47
        • MD5 SHA1 SHA512 SSDEEP

        QtGui.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\QtGui.pyd
        • Size 2.4MB
        • SHA256 8c425d163b0c650cb8dc4662625de4998bed2ad9a3f2e04a8664e2e72a69f845
        • MD5 SHA1 SHA512 SSDEEP

        QtNetwork.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\QtNetwork.pyd
        • Size 692KB
        • SHA256 c7c12c09a86e1a6b935b94c9939065827a389377874d85294186791500b72c2d
        • MD5 SHA1 SHA512 SSDEEP

        QtWebChannel.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\QtWebChannel.pyd
        • Size 37KB
        • SHA256 33553c789249d406ea242ab24f4786982235824ce48056f9108118281ed9f538
        • MD5 SHA1 SHA512 SSDEEP

        QtWebEngineWidgets.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\QtWebEngineWidgets.pyd
        • Size 222KB
        • SHA256 78327dac1f28f9907f10a25198017727da330fb04f1c4ba2fec6e33b854f7b1d
        • MD5 SHA1 SHA512 SSDEEP

        QtWidgets.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\QtWidgets.pyd
        • Size 4.9MB
        • SHA256 e732f15729fa69c3067dc33abb60e241570398aa9ab3359d9ff2a9714d1a1e4c
        • MD5 SHA1 SHA512 SSDEEP

        sip.cp312-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\PyQt5\sip.cp312-win_amd64.pyd
        • Size 117KB
        • SHA256 4e1a8a32a84dd2098eea849a804885ce7cd0fb7c6fa3513f1cb60bc4e7578171
        • MD5 SHA1 SHA512 SSDEEP

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\VCRUNTIME140.dll
        • Size 116KB
        • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
        • MD5 SHA1 SHA512 SSDEEP

        VCRUNTIME140_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\VCRUNTIME140_1.dll
        • Size 48KB
        • SHA256 a113f192195f245f17389e6ecbed8005990bcb2476ddad33f7c4c6c86327afe5
        • MD5 SHA1 SHA512 SSDEEP

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\_bz2.pyd
        • Size 83KB
        • SHA256 3ed0e5058d370fb14aa5469d81f96c5685559c054917c7280dd4125f21d25f62
        • MD5 SHA1 SHA512 SSDEEP

        _decimal.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\_decimal.pyd
        • Size 251KB
        • SHA256 b8221d1c9e2c892dd6227a6042d1e49200cd5cb82adbd998e4a77f4ee0e9abf1
        • MD5 SHA1 SHA512 SSDEEP

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\_hashlib.pyd
        • Size 64KB
        • SHA256 fd77a5756a17ec0788989f73222b0e7334dd4494b8c8647b43fe554cf3cfb354
        • MD5 SHA1 SHA512 SSDEEP

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\_lzma.pyd
        • Size 156KB
        • SHA256 7bf9ff61babebd90c499a8ed9b62141f947f90d87e0bbd41a12e99d20e06954a
        • MD5 SHA1 SHA512 SSDEEP

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\_socket.pyd
        • Size 81KB
        • SHA256 b102522c23dac2332511eb3502466caf842d6bcd092fbc276b7b55e9cc01b085
        • MD5 SHA1 SHA512 SSDEEP

        base_library.zip

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\base_library.zip
        • Size 1.3MB
        • SHA256 29556cc179d145e9f64d287f0455991bd62a8dc4304e20429f83a1a40959fd09
        • MD5 SHA1 SHA512 SSDEEP

        libcrypto-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\libcrypto-3.dll
        • Size 5.0MB
        • SHA256 05fe080eab7fc535c51e10c1bd76a2f3e6217f9c91a25034774588881c3f99de
        • MD5 SHA1 SHA512 SSDEEP

        python3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\python3.dll
        • Size 66KB
        • SHA256 5146005c36455e7ede4b8ecc0dc6f6fa8ea6b4a99fedbabc1994ae27dfab9d1b
        • MD5 SHA1 SHA512 SSDEEP

        python312.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\python312.dll
        • Size 6.6MB
        • SHA256 21700f0bad5769a1b61ea408dc0a140ffd0a356a774c6eb0cc70e574b929d2e2
        • MD5 SHA1 SHA512 SSDEEP

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\select.pyd
        • Size 30KB
        • SHA256 411d6f538bdbaf60f1a1798fa8aa7ed3a4e8fcc99c9f9f10d21270d2f3742019
        • MD5 SHA1 SHA512 SSDEEP

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI23042\unicodedata.pyd
        • Size 1.1MB
        • SHA256 bc2cf23b7b7491edcf03103b78dbaf42afd84a60ea71e764af9a1ddd0fe84268
        • MD5 SHA1 SHA512 SSDEEP

        memory/1420-1604-0x00007FFA32AE0000-0x00007FFA32D45000-memory.dmp

        memory/1420-1622-0x00007FFA1FCD0000-0x00007FFA200C8000-memory.dmp

        memory/1420-1601-0x00007FFA200D0000-0x00007FFA20611000-memory.dmp

        memory/1420-1584-0x00007FFA32D50000-0x00007FFA32FB3000-memory.dmp

        memory/1420-1600-0x00007FFA20CE0000-0x00007FFA211D0000-memory.dmp

        memory/2328-1648-0x00007FFA1FCD0000-0x00007FFA200C8000-memory.dmp

        memory/4928-1667-0x0000021183EE0000-0x0000021183F11000-memory.dmp

        memory/4928-1645-0x00007FFA410C0000-0x00007FFA410C1000-memory.dmp

        memory/4928-1646-0x00007FFA40540000-0x00007FFA40541000-memory.dmp

        memory/4928-1647-0x00007FFA41DE0000-0x00007FFA41DE1000-memory.dmp

        memory/4928-1649-0x00007FFA1FCD0000-0x00007FFA200C8000-memory.dmp