Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system - submitted
24/07/2024, 15:17
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe
Resource
win7-20240704-en
windows7-x64
9 signatures
150 seconds
General
- Target 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe
- Size 270KB
- Sample240724-sn1y9sseqm
- SHA256 7c74a8c41e24f69015185f78b8fbc177edcbe9d27099e904497b2310999f74cb
- MD5 5d7bf93da08731aaf8893746fb43b9a3
- SHA1 6ee7469ec907b4a8a7887f8f425263693d59b2db
- SHA512 48f742462880e1f6c30132822165c6177bd9b218e523e2c5f3a325321d41e8140a019fcb6a14840aba752a7da9ba9fd0f7a7291544719db58fea46e811e0e7e9
- SSDEEP 6144:O5I5UNTHGqnnm6qVLYKfKn2MjClPKZow:OUUNTHGqnj+LESl
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pub2
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
-
resource yara_rule behavioral2/files/0x00090000000234a5-3.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-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation klBTGc.exe - Executes dropped EXE 1 IoCs
pid Process 4360 klBTGc.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2284 set thread context of 2724 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 85 - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe klBTGc.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe klBTGc.exe File opened for modification C:\Program Files (x86)\Windows Mail\wabmig.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javac.exe klBTGc.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe klBTGc.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jjs.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE klBTGc.exe File opened for modification C:\Program Files\Windows Photo Viewer\ImagingDevices.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE klBTGc.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.exe klBTGc.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe klBTGc.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteim.exe klBTGc.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe klBTGc.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javacpl.exe klBTGc.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\pack200.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE klBTGc.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.106\Installer\chrmstp.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\unpack200.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe klBTGc.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe klBTGc.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe klBTGc.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.exe klBTGc.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE klBTGc.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe klBTGc.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmic.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe klBTGc.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe klBTGc.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe klBTGc.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.106\notification_helper.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\idlj.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jconsole.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe klBTGc.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\kinit.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe klBTGc.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\servertool.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE klBTGc.exe File opened for modification C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\123.0.6312.106\chrome_installer.exe klBTGc.exe File opened for modification C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javapackager.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\wsimport.exe klBTGc.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\klist.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE klBTGc.exe File opened for modification C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javaw.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\xjc.exe klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE klBTGc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE klBTGc.exe File opened for modification C:\Program Files\Mozilla Firefox\maintenanceservice.exe klBTGc.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe klBTGc.exe File opened for modification C:\Program Files\7-Zip\7zG.exe klBTGc.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe klBTGc.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 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language klBTGc.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 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2284 wrote to memory of 4360 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 84 PID 2284 wrote to memory of 4360 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 84 PID 2284 wrote to memory of 4360 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 84 PID 2284 wrote to memory of 2724 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 85 PID 2284 wrote to memory of 2724 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 85 PID 2284 wrote to memory of 2724 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 85 PID 2284 wrote to memory of 2724 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 85 PID 2284 wrote to memory of 2724 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 85 PID 2284 wrote to memory of 2724 2284 674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe 85 PID 4360 wrote to memory of 3488 4360 klBTGc.exe 89 PID 4360 wrote to memory of 3488 4360 klBTGc.exe 89 PID 4360 wrote to memory of 3488 4360 klBTGc.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe"C:\Users\Admin\AppData\Local\Temp\674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Users\Admin\AppData\Local\Temp\klBTGc.exeC:\Users\Admin\AppData\Local\Temp\klBTGc.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:4360 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1f395753.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:3488
-
-
-
C:\Users\Admin\AppData\Local\Temp\674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe"C:\Users\Admin\AppData\Local\Temp\674F2D1AFFFFC011E997D1BEC6A1B4A08AC66AB3A6159C084CF31A4F27151D9B.exe"2⤵
- Checks SCSI registry key(s)
PID:2724
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\I0E3LJN0\k2[1].rar
- Size 4B
- SHA256 b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
- MD5 d3b07384d113edec49eaa6238ad5ff00
- SHA1 f1d2d2f924e986ac86fdf7b36c94bcdf32beec15
- SHA512 0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\0F9E2B37.exe
- Size 4B
- SHA256 9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
- MD5 20879c987e2f9a916e578386d499f629
- SHA1 c7b33ddcc42361fdb847036fc07e880b81935d5d
- SHA512 bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\1f395753.bat
- Size 187B
- SHA256 7121e1ff1e2d19e508c1ba8e1cfde4bfedab2eee99a2825f67af0f0acfe31b70
- MD5 521ea37c1cc032335f08681260edd6c3
- SHA1 9ff113d135ba5136335d38a97e370e672e667a82
- SHA512 255088f2073840a71866d29cbaa0d23263983d094144bd71fd3613f0b5c76f5e4166fe41c0a135c46a623c6c0125d8b2ad7e61df344f98d6a3b7b5a8a1b573ca
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\klBTGc.exe
- Size 15KB
- SHA256 4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794
- MD5 f7d21de5c4e81341eccd280c11ddcc9a
- SHA1 d4e9ef10d7685d491583c6fa93ae5d9105d815bd
- SHA512 e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3
- SSDEEP 384:IXZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:gQGPL4vzZq2o9W7GsxBbPr
- MD5 SHA1 SHA512 SSDEEP