Analysis

  • max time kernel
    144s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/08/2024, 23:31

General

  • Target

    33865addf2f2d9c6a7272bc366348f60dc30329243a9dc8e07f46939e01bf763.exe

  • Size

    2.0MB

  • MD5

    5d1996a8f9b5d1ca4e0677a41f3871af

  • SHA1

    0b94f2dafedab762e17ad38ea8fa8498b46390e1

  • SHA256

    33865addf2f2d9c6a7272bc366348f60dc30329243a9dc8e07f46939e01bf763

  • SHA512

    3a554727d43c44680259b13946c726ea19e00e01bc2dd1da364d04ffdad9ca4cd7fafb2c1f7f9f231ac1e952b254e33aa89431c1199e64fdfa5dd8eda30268c5

  • SSDEEP

    49152:DVAbwuGwKOco09gsJcxlV8fTguPOAItUIrhO5Ov:pApQx5+Mc27g9tfoMv

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33865addf2f2d9c6a7272bc366348f60dc30329243a9dc8e07f46939e01bf763.exe
    "C:\Users\Admin\AppData\Local\Temp\33865addf2f2d9c6a7272bc366348f60dc30329243a9dc8e07f46939e01bf763.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Users\Admin\AppData\Local\Temp\7zS45499718\setup.exe
      C:\Users\Admin\AppData\Local\Temp\7zS45499718\setup.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Users\Admin\AppData\Local\Temp\7zS45499718\setup.exe
        C:\Users\Admin\AppData\Local\Temp\7zS45499718\setup.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=112.0.5197.53 --initial-client-data=0x32c,0x330,0x334,0x300,0x338,0x74d5a174,0x74d5a180,0x74d5a18c
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2696
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\setup.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2676
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408192331391\assistant\Assistant_112.0.5197.30_Setup.exe_sfx.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408192331391\assistant\Assistant_112.0.5197.30_Setup.exe_sfx.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1560
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408192331391\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408192331391\assistant\assistant_installer.exe" --version
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1348
        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408192331391\assistant\assistant_installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408192331391\assistant\assistant_installer.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=112.0.5197.30 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x918f40,0x918f4c,0x918f58
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:868
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4400,i,6510295916244954942,10164894160290787457,262144 --variations-seed-version --mojo-platform-channel-handle=4440 /prefetch:8
    1⤵
      PID:456

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\BKKBWXOR\Assistant_112.0.5197.30_Setup[1].exe

            Filesize

            2.6MB

            MD5

            1bf64fd766bd850bcf8e0ffa9093484b

            SHA1

            01524bb2c88b7066391da291ee474004a4904891

            SHA256

            58794b1bf4d84bd7566ee89fd8a8a4157dc70c598d229ec5101959f30b6f3491

            SHA512

            cdf2830edc5d4f30beae41591f3a1bcff820f75444d70338a4c6d36e10df43475f383a9f291b619a008452c53e0dddf65547f217386389000535d6d264854e7f

          • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408192331391\assistant\assistant_installer.exe

            Filesize

            1.9MB

            MD5

            9afe96db501220cf42b262fdac954dc8

            SHA1

            d3471998f674b267256e72a30977a79abcd8fca9

            SHA256

            fc5608bf95bb02e889aa9be15abc5c066acd62ba07f886b323383e75909a2566

            SHA512

            ecff52ca7467e3948faa244c1fc7c3d4d1f1dbe74077d071b78147729a078cc6a676212e0606111edcf542d554045c4f5a4d502545b2f0a285cda6c5d0b69b27

          • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408192331391\assistant\dbgcore.dll

            Filesize

            166KB

            MD5

            e0274730d20eb9571d59f2da20d165a2

            SHA1

            b746aeca5f7cbee0de163309c9d207c94f9b8d64

            SHA256

            c5c4c6430bcfe6118a4f499c94afa460401e369dc548a24688532c95fd202ec5

            SHA512

            d95998b69e6c3d25037e12e038f2773960de2d18df1af0342fd805c7c349bd630a21d0e0fe7490baaf274e90781ebf6a2667e64593f9d91174d040bfe640bddf

          • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202408192331391\assistant\dbghelp.dll

            Filesize

            1.7MB

            MD5

            6e9976cc7b2def7a37106703e47626a5

            SHA1

            edcb4758f8ee56e9c6515f912d5024aeca9ead50

            SHA256

            fd8840fab4b61db4e9e09168e5b1b4f0e9bfea0a64482fd475ab63c712b92b9c

            SHA512

            27091e6ad001dac22897a295806925e02f693096d79667e587de74ca955ffb9b2773b22c83e306e7164862524e02ad028e68684c2ca7d9e4da1ff03787dd40ca

          • C:\Users\Admin\AppData\Local\Temp\7zS45499718\setup.exe

            Filesize

            5.2MB

            MD5

            44908c157516d82119d84a3b1c4a31f7

            SHA1

            dea19891d14b4e3598844f624c919b0dc5ce236f

            SHA256

            be21539218a31ff278f218a172b9972f4d8978a281387acdadf9a25b86e30b1a

            SHA512

            5a83d45533202ba573941d041619bd7f17e997f352f73528029d1f07da9a26c4f50f1cf77c822f972b596fa75bd2eeb0bca8170d89343d8b590ba869be058106

          • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2408192331373012908.dll

            Filesize

            4.7MB

            MD5

            d7b7e0f7865a3cc624e95cefe2bc205c

            SHA1

            1352733bfaa54292d1457d3f7a87069c00a1f56f

            SHA256

            94028494f0c28a14f21179ef4096e0c52f1d022a5ad65b070f0d8584b500b597

            SHA512

            e5bced68446f702de4236a6f11ec005bc5233915ff689693a1894afe7ea924ca6d6d8ae722b12daa0ee0b4e35223606a55f13b34db648bfb24e96a76e834ff08

          • C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports\settings.dat

            Filesize

            40B

            MD5

            a8bbc0840cbab8fffc8171aa248b9067

            SHA1

            adcd260ead3af163409357699ce7f5a4e2f46fdd

            SHA256

            d6289e9a90f986740a76822603a4c49f1e237b20946cf16050dfe719b6d167f6

            SHA512

            90d88d555d66ba5ee129bc749777b7851892cf60df796e95b2ed12c9c113cba91f2000e85a47c90741c2c1494b16281b5251b11fc4a3b81e0d389bce24708c4c