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Analysis
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max time kernel
92s -
max time network
105s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/10/2022, 04:45
Static task
static1
Behavioral task
behavioral1
Sample
5b43695e86a754d3dcf8d5ffd37c93b84993defb262e47faac8542f64249c47a.exe
Resource
win7-20220901-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
5b43695e86a754d3dcf8d5ffd37c93b84993defb262e47faac8542f64249c47a.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
6 signatures
150 seconds
General
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Target
5b43695e86a754d3dcf8d5ffd37c93b84993defb262e47faac8542f64249c47a.exe
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Size
80KB
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MD5
66812f41b2b9653051f2e8fdba4888e0
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SHA1
9f208e4dcb64df19ea6a5d8288066f6beb7ed9ae
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SHA256
5b43695e86a754d3dcf8d5ffd37c93b84993defb262e47faac8542f64249c47a
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SHA512
f4e1f9351afde6584231050e7069d3b3c4a47d243b96d50f4a37724a31fa98e07dbdfaebfe19497203c2ae8950b840ddfbb93a0ee39fc9ff52cb2763f235e28d
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SSDEEP
1536:fHB0UxMkzOt7HcvJGt5AdHIOWnToIf12ZtrGCq2iW7z:fhAWJGSCTBf12Z1GCH
Score
8/10
Malware Config
Signatures
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resource yara_rule behavioral2/files/0x0008000000022f63-134.dat aspack_v212_v242 behavioral2/files/0x0008000000022f63-135.dat aspack_v212_v242 -
Executes dropped EXE 1 IoCs
pid Process 3388 riaFcv.exe -
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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation riaFcv.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\javaws.exe riaFcv.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\ssvagent.exe riaFcv.exe File opened for modification C:\Program Files\Mozilla Firefox\minidump-analyzer.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\rmiregistry.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\unpack200.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe riaFcv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe riaFcv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe riaFcv.exe File opened for modification C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\89.0.4389.114\chrome_installer.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\jps.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\jstatd.exe riaFcv.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\policytool.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoia.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Win32Bridge.Server.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE riaFcv.exe File opened for modification C:\Program Files\Microsoft Office 15\ClientX64\IntegratedOffice.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxTsr.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe riaFcv.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\keytool.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE riaFcv.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe riaFcv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\serialver.exe riaFcv.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\rmid.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\bin\jabswitch.exe riaFcv.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\unpack200.exe riaFcv.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\kinit.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe riaFcv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\idlj.exe riaFcv.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.exe riaFcv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxOutlook.exe riaFcv.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.71\GoogleUpdateOnDemand.exe riaFcv.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\xjc.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\bin\keytool.exe riaFcv.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 riaFcv.exe File opened for modification C:\Program Files\Mozilla Firefox\default-browser-agent.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\rmic.exe riaFcv.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\pack200.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe riaFcv.exe File opened for modification C:\Program Files\Windows Mail\wab.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\javah.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\tnameserv.exe riaFcv.exe File opened for modification C:\Program Files\VideoLAN\VLC\uninstall.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE riaFcv.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.exe riaFcv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe riaFcv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe riaFcv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\jstat.exe riaFcv.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\keytool.exe riaFcv.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\javacpl.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe riaFcv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE riaFcv.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1732 wrote to memory of 3388 1732 5b43695e86a754d3dcf8d5ffd37c93b84993defb262e47faac8542f64249c47a.exe 81 PID 1732 wrote to memory of 3388 1732 5b43695e86a754d3dcf8d5ffd37c93b84993defb262e47faac8542f64249c47a.exe 81 PID 1732 wrote to memory of 3388 1732 5b43695e86a754d3dcf8d5ffd37c93b84993defb262e47faac8542f64249c47a.exe 81 PID 3388 wrote to memory of 1920 3388 riaFcv.exe 84 PID 3388 wrote to memory of 1920 3388 riaFcv.exe 84 PID 3388 wrote to memory of 1920 3388 riaFcv.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\5b43695e86a754d3dcf8d5ffd37c93b84993defb262e47faac8542f64249c47a.exe"C:\Users\Admin\AppData\Local\Temp\5b43695e86a754d3dcf8d5ffd37c93b84993defb262e47faac8542f64249c47a.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Users\Admin\AppData\Local\Temp\riaFcv.exeC:\Users\Admin\AppData\Local\Temp\riaFcv.exe2⤵
- Executes dropped EXE
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3388 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\41485fee.bat" "3⤵PID:1920
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
187B
MD559d7b6999fc26fcbc86eba177b8a1eb8
SHA14953733f9cfc952801e3beaec5f6780be9c949a3
SHA256cabe2badc19539528e02a01ecbc5bdabaa4540cc30070d8d3d7b79259bef86e7
SHA512927dd126efcdb50845364cb93ed779e94d99629a56c1ca4813907631f74e5bfcce49c4e1d278469c28600f7072f0bdd8cd05c8cfd4520b39c98ffa4b52eaa5ec
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Filesize
15KB
MD556b2c3810dba2e939a8bb9fa36d3cf96
SHA199ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA2564354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
SHA51227812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e
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Filesize
15KB
MD556b2c3810dba2e939a8bb9fa36d3cf96
SHA199ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA2564354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
SHA51227812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e