Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system - submitted
25/07/2024, 02:57
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe
Resource
win7-20240705-en
windows7-x64
9 signatures
150 seconds
General
- Target 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe
- Size 270KB
- Sample240725-df4ymavbjr
- SHA256 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d
- MD5 49d7edc4f51e03058654bdaffdfe9992
- SHA1 8f6831a72019f1361e1174e1dbaa00113a034618
- SHA512 05795d5a19f24bd6a14a8942730e588d5a5ef5b186d3f65ed3821efeb9d0e29c49352867bf8d8d7bc933f3f5356b55d40dd2e39080847d564bf0c24afd7a36d7
- SSDEEP 6144:SzrS9ZldfBpR/xV/tlTUEuA38xplKK9/2Y/Um4voF:ScdfBpR/xV/tuTa85K4JU
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pub1
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
-
resource yara_rule behavioral2/files/0x0009000000023476-3.dat aspack_v212_v242 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation bkmRoO.exe - Executes dropped EXE 1 IoCs
pid Process 3460 bkmRoO.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 944 set thread context of 2696 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 84 - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.106\chrome_pwa_launcher.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javapackager.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe bkmRoO.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\policytool.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\rmid.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Video.UI.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\filecompare.exe bkmRoO.exe File opened for modification C:\Program Files\VideoLAN\VLC\uninstall.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.exe bkmRoO.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe bkmRoO.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\serialver.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.exe bkmRoO.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe bkmRoO.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe bkmRoO.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Integrator.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe bkmRoO.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\servertool.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\keytool.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javah.exe bkmRoO.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\unpack200.exe bkmRoO.exe File opened for modification C:\Program Files\Mozilla Firefox\private_browsing.exe bkmRoO.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe bkmRoO.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe bkmRoO.exe File opened for modification C:\Program Files\7-Zip\7z.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\tnameserv.exe bkmRoO.exe File opened for modification C:\Program Files\Mozilla Firefox\updater.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\idlj.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Maps.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe bkmRoO.exe File opened for modification C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\123.0.6312.106\chrome_installer.exe bkmRoO.exe File opened for modification C:\Program Files (x86)\Google\Update\Install\{04733A16-1E1C-4429-8CB3-9E461F0CABA4}\chrome_installer.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\pack200.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\ScreenSketch.exe bkmRoO.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBackgroundHost.exe bkmRoO.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javac.exe bkmRoO.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jdeps.exe bkmRoO.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bkmRoO.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 944 wrote to memory of 3460 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 83 PID 944 wrote to memory of 3460 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 83 PID 944 wrote to memory of 3460 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 83 PID 944 wrote to memory of 2696 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 84 PID 944 wrote to memory of 2696 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 84 PID 944 wrote to memory of 2696 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 84 PID 944 wrote to memory of 2696 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 84 PID 944 wrote to memory of 2696 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 84 PID 944 wrote to memory of 2696 944 53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe 84 PID 3460 wrote to memory of 3500 3460 bkmRoO.exe 88 PID 3460 wrote to memory of 3500 3460 bkmRoO.exe 88 PID 3460 wrote to memory of 3500 3460 bkmRoO.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe"C:\Users\Admin\AppData\Local\Temp\53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:944 -
C:\Users\Admin\AppData\Local\Temp\bkmRoO.exeC:\Users\Admin\AppData\Local\Temp\bkmRoO.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3460 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\4c13363b.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:3500
-
-
-
C:\Users\Admin\AppData\Local\Temp\53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe"C:\Users\Admin\AppData\Local\Temp\53bcd8239258dcbb10f9d3b6d057103c18fe3dd614c5809053426b01b741500d.exe"2⤵
- Checks SCSI registry key(s)
PID:2696
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\A4F1OTIC\k2[1].rar
- Size 4B
- SHA256 b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
- MD5 d3b07384d113edec49eaa6238ad5ff00
- SHA1 f1d2d2f924e986ac86fdf7b36c94bcdf32beec15
- SHA512 0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\4c13363b.bat
- Size 187B
- SHA256 0444e3bebf81ef1fdad51114d49a9432daea4e9353b928295fda9347271ebd7d
- MD5 963597da807bd3d68a02cd3f59307f0c
- SHA1 65a88e908904a6e60044946669081b43f0899415
- SHA512 6269bd14d9e825053fa956eda7e52f06efd95279d5226bf05dbaef32d35f59a14aceab85c1228f6d7f5e399e4f456afce4b3283696c68fe7613a70f9ef705f42
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\6A0A14C6.exe
- Size 4B
- SHA256 9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
- MD5 20879c987e2f9a916e578386d499f629
- SHA1 c7b33ddcc42361fdb847036fc07e880b81935d5d
- SHA512 bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\bkmRoO.exe
- Size 15KB
- SHA256 4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794
- MD5 f7d21de5c4e81341eccd280c11ddcc9a
- SHA1 d4e9ef10d7685d491583c6fa93ae5d9105d815bd
- SHA512 e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3
- SSDEEP 384:IXZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:gQGPL4vzZq2o9W7GsxBbPr
- MD5 SHA1 SHA512 SSDEEP