ryuk | 59a777daa0a5b26077c69c7cb26b7f72be6b38604b7caea7c6aef0e89991c748

Resubmissions

25-12-2024 03:42

241225-d9c21axjdn 10

25-12-2024 03:39

241225-d74ryawqfw 10

25-12-2024 03:37

241225-d6fzgswqbw 10

25-12-2024 03:21

241225-dwt4cswpdj 10

Analysis

max time kernel
21s
max time network
19s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 03:39

Sharing

Copy URL

Twitter E-mail

Reason

Machine shutdown

Report Analysis Logs

General

Target

28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
Size

321KB
MD5

04ba14a9828b000add142d0bcb42ac2d
SHA1

928a705a481384dee3aa9985bb2a9e1e6827902f
SHA256

28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33
SHA512

2fc56d6fdf360c0435f76822f3d99288c3b31462931eb128c7ed895bf93d88b00663801c1a5394b1ae5bb081ac76b004deaf46fdf2b0b9c027b2945a7c030909
SSDEEP

6144:ba4FsUiep6JzvI74kZO/+SJtwOW8HFBwK3SBDmhYfFQ:ba4Fs/7IfO/+SJFW8HF+KCIG

Score

10^/10

ryuk discovery persistence ransomware vmprotect

Malware Config

Extracted

Path

F:\RyukReadMe.txt

Family

ryuk

Ransom Note

Your network has been penetrated. All files on each host in the network have been encrypted with a strong algorithm. Backups were either encrypted or deleted or backup disks were formatted. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. We exclusively have decryption software for your situation No decryption software is available in the public. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. This may lead to the impossibility of recovery of the certain files. To get info (decrypt your files) contact us at [email protected] or [email protected] BTC wallet: 14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk Ryuk No system is safe

Emails

[email protected]

Wallets

14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk

Signatures

Ryuk
Ransomware distributed via existing botnets, often Trickbot or Emotet.
ransomware ryuk
Ryuk family
ryuk

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe

VMProtect packed file 3 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral12/memory/4520-0-0x0000000030000000-0x00000000303DF000-memory.dmp	vmprotect
behavioral12/memory/4520-2-0x0000000030000000-0x00000000303DF000-memory.dmp	vmprotect
behavioral12/memory/4520-3-0x0000000030000000-0x00000000303DF000-memory.dmp	vmprotect

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchos = "C:\\Users\\Admin\\AppData\\Local\\Temp\\28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe"	reg.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\aicuc\js\nls\nl-nl\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\OFFICE16\Office Setup Controller\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-ul-phn.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\RMNSQUE\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\System\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vreg\osm.x-none.msi.16.x-none.vreg.dat	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroApp\ENU\CollectSignatures.aapp	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\sl-si\ui-strings.js	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\cryptix.md	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ppd.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\ga\LC_MESSAGES\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Click on 'Change' to select default PDF handler.pdf	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\Toast.svg	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Java\jre-1.8\legal\javafx\libffi.md	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-ppd.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\EVRGREEN\EVRGREEN.INF	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Java\jre-1.8\lib\deploy\messages_zh_CN.properties	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Corbel.xml	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Trial-pl.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_MAKC2R-ul-phn.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office15\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub_M365_eula.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\BLUECALM\BLUECALM.INF	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\file_types\s_shared_multi_filetype.svg	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\core\dev\nls\sv-se\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mr.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ru-RU\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\legal\javafx\libxslt.md	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_KMS_Client_AE-ppd.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-100.png	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\Cartridges\Sybase.xsl	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_backarrow_default.svg	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\pl-pl\ui-strings.js	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ul-phn.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\legal\jdk\jopt-simple.md	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Century Gothic.xml	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_OEM_Perp-ppd.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Trial-ul-oob.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_KMS_Client-ul.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\FPA_w1\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Common Files\System\fr-FR\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\dtplugin\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ViewOnly_ZeroGrace-ul-oob.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial5-ppd.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\ClientPreview_eula.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\DataModel\Resources\1033\msmdsrvi_xl.rll	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_gridview.svg	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\pt-br\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\plugin2\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest2-ppd.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcDemoR_BypassTrial365-ul-oob.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-phn.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN044.XML	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\organize.svg	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.Proof.Culture.msi.16.es-es.xml	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\notice.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\fi\LC_MESSAGES\vlc.mo	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_listview-hover.svg	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\core\dev\nls\tr-tr\RyukReadMe.txt	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\ui-strings.js	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-oob.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ppd.xrm-ms	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 3528	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	84
PID 4520 wrote to memory of 3528	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	84
PID 4520 wrote to memory of 3528	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	84
PID 4520 wrote to memory of 688	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	51
PID 3528 wrote to memory of 4212	3528	cmd.exe	86
PID 3528 wrote to memory of 4212	3528	cmd.exe	86
PID 3528 wrote to memory of 4212	3528	cmd.exe	86
PID 4520 wrote to memory of 3076	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	52
PID 4520 wrote to memory of 3132	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	53
PID 4520 wrote to memory of 3580	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	57
PID 4520 wrote to memory of 3756	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	58
PID 4520 wrote to memory of 3852	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	59
PID 4520 wrote to memory of 3920	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	60
PID 4520 wrote to memory of 3996	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	61
PID 4520 wrote to memory of 8	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	62
PID 4520 wrote to memory of 4680	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	74
PID 4520 wrote to memory of 4320	4520	28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe	76

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:688

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:3076

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:3132

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3580

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3756

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3852

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3920

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:3996

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:8

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
1⤵
PID:4680

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4320

C:\Users\Admin\AppData\Local\Temp\28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe
"C:\Users\Admin\AppData\Local\Temp\28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe" /f /reg:64
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3528
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\28e7dc4aebbfea61a2ad942f00ecab3bbb32a636679587a6fbd6c8dd69a0ef33.exe" /f /reg:64
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:4212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Microsoft\ClickToRun\MachineData\Catalog\Packages\{9AC08E99-230B-47E8-9721-4577B7F124EA}\{1A8308C7-90D1-4200-B16E-646F163A08E8}\Manifest.xml

Filesize
2.3MB

MD5
1dade92ffc5ce275d80eaa05a3d48116

SHA1
790c0b4f00b457d035a9c5d5a64875eed91f3869

SHA256
bfb5fbf357fbca6bcd25a875417b62c127af1fec7f61c9eb2c606e8e1736693e

SHA512
c1ac0bd62cd120c17f2b5dc406495accd88471c466b23a5e8d322edb8e8dc40d94b3d29bc32d6fef2f2e69820334ebbb37e2921967053de5c694d6ee121d6043

Download Submit
F:\RyukReadMe.txt

Filesize
804B

MD5
cd99cba6153cbc0b14b7a849e4d0180f

SHA1
375961866404a705916cbc6cd4915de7d9778923

SHA256
74c43a177917b1d57ea2eaf6212ccf3b9012b4d68bc45284349443eed0bf5ee2

SHA512
0c9f250c0e2ec9736b072a9807b6c3bec4b670ab2f511e65cf5d79e9a8c9a209eb91736ce2765b52b6d94a57c6aa1c16bb08e16727660699b70608439c8b7cda

Download Submit
memory/4520-0-0x0000000030000000-0x00000000303DF000-memory.dmp

Filesize
3.9MB

Download
memory/4520-2-0x0000000030000000-0x00000000303DF000-memory.dmp

Filesize
3.9MB

Download
memory/4520-3-0x0000000030000000-0x00000000303DF000-memory.dmp

Filesize
3.9MB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads