Analysis
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max time kernel
96s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-01-2025 02:26
Static task
static1
Behavioral task
behavioral1
Sample
2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe
Resource
win7-20240903-en
General
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Target
2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe
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Size
395KB
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MD5
04d6830a22f71714baeec3bb406276b7
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SHA1
6dc77b029df0c984f323f743817987894ad5e440
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SHA256
17941b01a96b55c9c45ba56839cc62ba349a8b44bb5a2d6ee8bd2e6975bb0a8a
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SHA512
1e90afd2d7f6c4154b653fa18d00e40a32b5d9e78e65a80903fe66a2dda09d25ef3616384c3ecd7960e35ab9b83d11951ca9336519d4d7064e45bad1534c49eb
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SSDEEP
12288:wT9GthZLYM+ZIwjRhY6EidkiKJh44zNmb/uEpApx:wskEirKc4zAb4x
Malware Config
Extracted
bdaejec
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/5104-47-0x0000000000AE0000-0x0000000000AE9000-memory.dmp family_bdaejec_backdoor -
resource yara_rule behavioral2/files/0x0010000000023bc5-3.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation wtkjeg.exe -
Executes dropped EXE 1 IoCs
pid Process 5104 wtkjeg.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmic.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jdeps.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\wsimport.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jjs.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoia.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe wtkjeg.exe File opened for modification C:\Program Files\CopyMeasure.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jinfo.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe wtkjeg.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jstack.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\tnameserv.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\policytool.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ONENOTEM.EXE wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE wtkjeg.exe File opened for modification C:\Program Files\Mozilla Firefox\minidump-analyzer.exe wtkjeg.exe File opened for modification C:\Program Files\dotnet\dotnet.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\keytool.exe wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\fmui\fmui.exe wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office 15\ClientX64\IntegratedOffice.exe wtkjeg.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\Wordconv.exe wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteim.exe wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe wtkjeg.exe File opened for modification C:\Program Files\7-Zip\Uninstall.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\servertool.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javac.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\unpack200.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE wtkjeg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe wtkjeg.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\notification_helper.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE wtkjeg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe wtkjeg.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 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wtkjeg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1168 wrote to memory of 5104 1168 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe 83 PID 1168 wrote to memory of 5104 1168 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe 83 PID 1168 wrote to memory of 5104 1168 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe 83 PID 5104 wrote to memory of 2392 5104 wtkjeg.exe 85 PID 5104 wrote to memory of 2392 5104 wtkjeg.exe 85 PID 5104 wrote to memory of 2392 5104 wtkjeg.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1168 -
C:\Users\Admin\AppData\Local\Temp\wtkjeg.exeC:\Users\Admin\AppData\Local\Temp\wtkjeg.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:5104 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\6b926b3a.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:2392
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4B
MD5d3b07384d113edec49eaa6238ad5ff00
SHA1f1d2d2f924e986ac86fdf7b36c94bcdf32beec15
SHA256b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
SHA5120cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6
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Filesize
4B
MD520879c987e2f9a916e578386d499f629
SHA1c7b33ddcc42361fdb847036fc07e880b81935d5d
SHA2569f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
SHA512bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f
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Filesize
187B
MD53372833347517a93d4dd3c343f662b9e
SHA1cd7f91b1a849457feaa1516065e73d4a4a371c72
SHA256fd2f3b52e51a071aa8230d6ab72944e031b9e3314b3a631bb06403178018eb36
SHA512cdb181d81831f4ad287e3a79fde081644a518b5a98c29e720af9b9019e492e3e9ea7c39bbf81f3553c371d1d1013291c808053e175165db292dcbef16827632a
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Filesize
15KB
MD556b2c3810dba2e939a8bb9fa36d3cf96
SHA199ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA2564354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
SHA51227812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e