Analysis
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max time kernel
118s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240910-en -
resource tags
arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system -
submitted
03-10-2024 02:11
Static task
static1
Behavioral task
behavioral1
Sample
d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe
Resource
win10v2004-20240910-en
General
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Target
d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe
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Size
905KB
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MD5
f6e5f0ed974c89e2b4a47989fc987c79
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SHA1
1906b34b2b7b30abeea67cf5bd1bd895624d2702
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SHA256
d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3
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SHA512
f16de7dba20b7443b4c19bed4ed9e8ae82bda2b4b352cbac0aeddc26b18a583ccf8d6d8177fc061f69ea8789a2f224cafef3e01f670aa734695d2a31fc496275
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SSDEEP
6144:/I99bj5oxq4BhArStlw0vRK/NMMmJZ/76jOMFMJnUm5cOgdVzOTeE:7IStlw0vRK/6h/7tJnLhgXXE
Malware Config
Signatures
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Detects Rhysida ransom note 1 IoCs
resource yara_rule behavioral2/files/0x000f000000023a27-4.dat family_rhysida_ransomnote -
Rhysida
Rhysida is a ransomware that is written in C++ and discovered in 2023.
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Renames multiple (8124) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ul-phn.xrm-ms.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\Windows Sidebar\Shared Gadgets\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\ob-preview\images\themeless\index_poster.jpg.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\ob-preview\images\themeless\example_icons.png.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\svgCheckboxUnselected.svg.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_reject_18.svg.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\js\nls\pt-br\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_zh_CN.properties.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\Templates\1033\Word 2010 look.dotx.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\SelectSubmit.m3u.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\WindowsPowerShell\Modules\PackageManagement\1.0.0.1\DSCResources\MSFT_PackageManagement\fr-FR\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\Cartridges\sql120.xsl.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\Windows Defender\en-US\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\js\nls\fr-fr\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\plugins\tracked-send\js\nls\pl-pl\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Fonts\private\MSYHBD.TTC.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\uk-ua\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\Localized_images\en-us\AppStore_icon.svg.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\desktop-connector-files\js\nls\zh-cn\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\home\js\nls\ja-jp\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\js\nls\zh-cn\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Java\jdk-1.8\javafx-src.zip.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\ReactAssets\assets\RNApp\app\uwp\images\stickers\word_art\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\activity-badge\js\nls\pt-br\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Speech\en-US\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\css\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\ResiliencyLinks\Locales\hu.pak.DATA.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\7-Zip\Lang\mr.txt.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-ul-oob.xrm-ms.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\System\ole db\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\ReactAssets\assets\RNApp\app\uwp\images\commerce\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Work\LTR\contrast-white\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\win8-scrollbar\themes\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\pt-br\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.NETCore.App.runtimeconfig.json.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp5-ul-phn.xrm-ms.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_MAK-ppd.xrm-ms.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\signatures\js\nls\de-de\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\aicuc\js\nls\ja-jp\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\js\nls\ko-kr\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\css\main-selector.css.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\ro-ro\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\Appstore\Download_on_the_App_Store_Badge_nl_135x40.svg.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\Common Files\System\uk-UA\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected] d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\VideoLAN\VLC\locale\am_ET\LC_MESSAGES\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\Office Setup Controller\Office.en-us\PSS10R.CHM.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\en-gb\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins3d\2d.x3d.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\pl-pl\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ppd.xrm-ms.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File created C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\CriticalBreachDetected.pdf d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\ca-es\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\generic-rhp-app\js\nls\root\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\images\themes\dark\AddressBook2x.png.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Common Files\Microsoft Shared\ink\ja-JP\TipRes.dll.mui.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Common Files\System\Ole DB\ja-JP\oledb32r.dll.mui.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\FrequentOfficeUpdateSchedule.xml.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.WindowsDesktop.App.deps.json.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest3-ppd.xrm-ms.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\file_types\delete.svg.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\ob-preview\js\nls\hr-hr\ui-strings.js.rhysida d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2284 cmd.exe 544 cmd.exe 1380 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1380 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2188 d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe 2188 d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2188 wrote to memory of 2284 2188 d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe 98 PID 2188 wrote to memory of 2284 2188 d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe 98 PID 2284 wrote to memory of 544 2284 cmd.exe 100 PID 2284 wrote to memory of 544 2284 cmd.exe 100 PID 544 wrote to memory of 1380 544 cmd.exe 101 PID 544 wrote to memory of 1380 544 cmd.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe"C:\Users\Admin\AppData\Local\Temp\d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe"1⤵
- Drops startup file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2188 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c cmd.exe /c start ping 127.0.0.1 -n 2 > nul && del /f /q "C:\Users\Admin\AppData\Local\Temp\C:\Users\Admin\AppData\Local\Temp\d7ba9881345d71862a68080d210643e2c2d3e17fd13065385edcd3b3391898c3.exe"2⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Windows\system32\cmd.execmd.exe /c start ping 127.0.0.1 -n 23⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:544 -
C:\Windows\system32\PING.EXEping 127.0.0.1 -n 24⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1380
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
111KB
MD51a89f87fe9f32b46bee6600ff2053647
SHA1a215d017a30f0f41116dbebe6b13e4d144962408
SHA25671c8257174b75afb74598a130a806d5272e551ed9f556dbc4dc8e31f83883293
SHA512f53b63d0ca57ac8180468ee747da727fb478e1ca7761cfa7c54ef4046bc393baf7a1a268c4870b972cc2858970b33f401ad979375d274a7b3ed4c1ab271e784e