Analysis
- max time kernel
148s - 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
08/08/2024, 06:48
Behavioral task
behavioral1
Sample
aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173.exe
Resource
win7-20240729-en
windows7-x64
11 signatures
150 seconds
General
- Target aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173.exe
- Size 604KB
- Sample240808-hkr7vavapd
- SHA256 aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173
- MD5 6fc865494ea46ecfb9a4482e0c072f35
- SHA1 e5900d001331bb5069e184e65b8ecf22df8151db
- SHA512 48695cdc03ff7383df43d726137e3495d9a3671348c4ed7229716e74328ecf7267087192f12afd124014f4bbc922bfb17c81dc12853b98d6649e4814d747c880
- SSDEEP 12288:AiHVHaAdSTC6/y3d4FZpYRNe//ypJ0pAiRsTJS/JZvzE61YdqBpHay769uFl6qd3:AiHgqQC6/GijpYRNe//ynRJejrE6VP6Z
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detect Blackmoon payload 2 IoCs
resource yara_rule behavioral2/memory/3856-21-0x0000000000400000-0x0000000000669000-memory.dmp family_blackmoon behavioral2/memory/3856-43-0x0000000000400000-0x0000000000669000-memory.dmp family_blackmoon -
resource yara_rule behavioral2/files/0x0009000000023442-3.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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation fFKnEz.exe - Executes dropped EXE 1 IoCs
pid Process 2164 fFKnEz.exe -
resource yara_rule behavioral2/memory/3856-0-0x0000000000400000-0x0000000000669000-memory.dmp upx behavioral2/memory/3856-21-0x0000000000400000-0x0000000000669000-memory.dmp upx behavioral2/memory/3856-43-0x0000000000400000-0x0000000000669000-memory.dmp upx - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jre-1.8\bin\ktab.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\AppVLP.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe fFKnEz.exe File opened for modification C:\Program Files\Windows Mail\wab.exe fFKnEz.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.exe fFKnEz.exe File opened for modification C:\Program Files\7-Zip\Uninstall.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\klist.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE fFKnEz.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe fFKnEz.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jconsole.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jstack.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javaw.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe fFKnEz.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe fFKnEz.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdate.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\serialver.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE fFKnEz.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\wsimport.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jinfo.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe fFKnEz.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jjs.exe fFKnEz.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe fFKnEz.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe fFKnEz.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoev.exe fFKnEz.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe fFKnEz.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc.exe fFKnEz.exe File opened for modification C:\Program Files\7-Zip\7z.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE fFKnEz.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe fFKnEz.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe fFKnEz.exe File opened for modification C:\Program Files\Mozilla Firefox\plugin-container.exe fFKnEz.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Weather.exe fFKnEz.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\xjc.exe fFKnEz.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 fFKnEz.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\setup.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe fFKnEz.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe fFKnEz.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.exe fFKnEz.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\klist.exe fFKnEz.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe fFKnEz.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerPythonRedirector.exe fFKnEz.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe fFKnEz.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 aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fFKnEz.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3856 aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3856 wrote to memory of 2164 3856 aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173.exe 83 PID 3856 wrote to memory of 2164 3856 aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173.exe 83 PID 3856 wrote to memory of 2164 3856 aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173.exe 83 PID 2164 wrote to memory of 2212 2164 fFKnEz.exe 87 PID 2164 wrote to memory of 2212 2164 fFKnEz.exe 87 PID 2164 wrote to memory of 2212 2164 fFKnEz.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173.exe"C:\Users\Admin\AppData\Local\Temp\aef4b3af74049742715f49a35d2dae9ee9b478e813a9ecaaa59f99dc43799173.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3856 -
C:\Users\Admin\AppData\Local\Temp\fFKnEz.exeC:\Users\Admin\AppData\Local\Temp\fFKnEz.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:2164 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\0d437aeb.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:2212
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WLXU5DI6\k2[1].rar
- Size 4B
- SHA256 b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
- MD5 d3b07384d113edec49eaa6238ad5ff00
- SHA1 f1d2d2f924e986ac86fdf7b36c94bcdf32beec15
- SHA512 0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\0d437aeb.bat
- Size 187B
- SHA256 a58c13fbeeff552ae31ac9e31a79b488f46c10a6370326da06f9643f43382ee5
- MD5 d0dcbd8895fb8718112d9b9c14ece9b0
- SHA1 a18b438a4329d74b7b9000bd5d9bbbdb419e623b
- SHA512 337118b40993cbca32d64e75080703e08a580da7e61bcab5ef42a7d3b07295f87004a3351b1cf2c15dcabb78f0cb334865792c1c1f2ff138eb27b9a328a2b811
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\20ED4D61.exe
- Size 4B
- SHA256 9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
- MD5 20879c987e2f9a916e578386d499f629
- SHA1 c7b33ddcc42361fdb847036fc07e880b81935d5d
- SHA512 bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\fFKnEz.exe
- Size 15KB
- SHA256 4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
- MD5 56b2c3810dba2e939a8bb9fa36d3cf96
- SHA1 99ee31cd4b0d6a4b62779da36e0eeecdd80589fc
- SHA512 27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e
- SSDEEP 384:7XZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:1QGPL4vzZq2o9W7GsxBbPr
- MD5 SHA1 SHA512 SSDEEP