Analysis
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max time kernel
141s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-12-2024 01:39
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2024-12-21_b79ab13d2657031cc3359a72cb9f111e_smoke-loader_wapomi.exe
Resource
win7-20240903-en
windows7-x64
12 signatures
150 seconds
General
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Target
2024-12-21_b79ab13d2657031cc3359a72cb9f111e_smoke-loader_wapomi.exe
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Size
94KB
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MD5
b79ab13d2657031cc3359a72cb9f111e
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SHA1
e5f93a88416a90f24ebdcdf4ec15d01d18a1343e
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SHA256
b1acae16ba101aba78c4e18dd3e7848a632e3cd32553a18660caa4e2e3fac538
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SHA512
d15fbb5e93999eaf1abf425f16f40bdaa53253b16f4fada9a3bb34c6df77421a564e0970ee101c8cb65ab5a36691a1256e91f477b39ed12dd77f05f8da396fd4
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SSDEEP
1536:4jkR3EeVVBS8gdigqdnynen2sgdaYZu9Gw1kbhR94k7NgribZINtotN6Sz7kxTa4:CY0eVVBJgdiPny34N1k9n4k7NgribZIZ
Malware Config
Extracted
Family
bdaejec
C2
ddos.dnsnb8.net
Signatures
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Bdaejec family
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Detects Bdaejec Backdoor. 1 IoCs
Bdaejec is backdoor written in C++.
resource yara_rule behavioral2/memory/4516-8-0x0000000000520000-0x0000000000529000-memory.dmp family_bdaejec_backdoor -
Detected Nirsoft tools 2 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/5048-0-0x0000000000400000-0x000000000041C000-memory.dmp Nirsoft behavioral2/memory/5048-7-0x0000000000400000-0x000000000041C000-memory.dmp Nirsoft -
resource yara_rule behavioral2/files/0x0008000000023c99-3.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation vOYmt.exe -
Executes dropped EXE 1 IoCs
pid Process 4516 vOYmt.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrmstp.exe vOYmt.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.exe vOYmt.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe vOYmt.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeApp.exe vOYmt.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\xjc.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe vOYmt.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java.exe vOYmt.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jinfo.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe vOYmt.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Notes.exe vOYmt.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBackgroundHost.exe vOYmt.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdate.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javapackager.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe vOYmt.exe File opened for modification C:\Program Files\Mozilla Firefox\private_browsing.exe vOYmt.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\keytool.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\pack200.exe vOYmt.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.exe vOYmt.exe File opened for modification C:\Program Files (x86)\Google\Update\Install\{F123CA10-B28F-434D-9884-6C3679B73C43}\chrome_installer.exe vOYmt.exe File opened for modification C:\Program Files (x86)\Windows Mail\wab.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoev.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE vOYmt.exe File opened for modification C:\Program Files\VideoLAN\VLC\uninstall.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE vOYmt.exe File opened for modification C:\Program Files\7-Zip\7zG.exe vOYmt.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jstatd.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE vOYmt.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE vOYmt.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc.exe vOYmt.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\kinit.exe vOYmt.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\kinit.exe vOYmt.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 vOYmt.exe File opened for modification C:\Program Files\Mozilla Firefox\maintenanceservice.exe vOYmt.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe vOYmt.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxOutlook.exe vOYmt.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javah.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jhat.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE vOYmt.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe vOYmt.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\ktab.exe vOYmt.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe vOYmt.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxTsr.exe vOYmt.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 vOYmt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-12-21_b79ab13d2657031cc3359a72cb9f111e_smoke-loader_wapomi.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5048 wrote to memory of 4516 5048 2024-12-21_b79ab13d2657031cc3359a72cb9f111e_smoke-loader_wapomi.exe 83 PID 5048 wrote to memory of 4516 5048 2024-12-21_b79ab13d2657031cc3359a72cb9f111e_smoke-loader_wapomi.exe 83 PID 5048 wrote to memory of 4516 5048 2024-12-21_b79ab13d2657031cc3359a72cb9f111e_smoke-loader_wapomi.exe 83 PID 4516 wrote to memory of 4976 4516 vOYmt.exe 101 PID 4516 wrote to memory of 4976 4516 vOYmt.exe 101 PID 4516 wrote to memory of 4976 4516 vOYmt.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-21_b79ab13d2657031cc3359a72cb9f111e_smoke-loader_wapomi.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-21_b79ab13d2657031cc3359a72cb9f111e_smoke-loader_wapomi.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5048 -
C:\Users\Admin\AppData\Local\Temp\vOYmt.exeC:\Users\Admin\AppData\Local\Temp\vOYmt.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:4516 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\11037a38.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:4976
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
185B
MD5878958054108811be85984ab9a87bbfc
SHA1e8512eda09cf3c967ad7a6068b90250fec812e5e
SHA256ef19817cb86592698616ac4ce89a3137009b7805a3c8eb2763da7923d6b631cc
SHA512be33d68d60090825806d390548d2461af69321d25f004634f7b59cfccb80820ec0eea584143d9a01ea42192156f2a1c5bf224e669e9031b0f15e7b2f817cc70e
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Filesize
15KB
MD556b2c3810dba2e939a8bb9fa36d3cf96
SHA199ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA2564354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
SHA51227812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e