avoslocker | eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115

General

Target

eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
Size

1002KB
MD5

97b34aecdcbe69cc57b4d321b0700cd9
SHA1

b2f2a027512a6f2b4ea856468eaccf6250a555d4
SHA256

eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115
SHA512

5436ad5e25083f167de6a30d2aa06d4dce514a4b5a2cc6d9ca5a4b1f7d3903f2d0bb70f64fa4562b26857dac7bd36ef7c8bb5b766d4975a0fef39a01dac63327
SSDEEP

24576:Lgg34ayddj+yYCVj2EG1bWIL0oHPVRV37AXVJmUCOsvxFdUwcT:E2edj4CwE4bFbl7AqUgvrFcT

Score

10^/10

avoslocker defense_evasion evasion execution impact ransomware

Malware Config

Signatures

Avoslocker Ransomware
Avoslocker is a relatively new ransomware, that was observed in late June and early July, 2021.
ransomware avoslocker
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
ransomware evasion

Inhibit System Recovery
T1490

Processes:

bcdedit.exebcdedit.exe

pid process

4260 bcdedit.exe
9196 bcdedit.exe
Renames multiple (8461) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

pid	process
4260	bcdedit.exe
9196	bcdedit.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe

description	ioc	process
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe

Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe

description ioc process

File opened (read-only) \??\Z: eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe

description	ioc	process
File opened (read-only)	\??\Z:	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1513918393.png"	reg.exe

Drops file in Program Files directory 64 IoCs

Processes:

eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\thaidict.md	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\ob-preview\js\nls\sk-sk\ui-strings.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\js\nls\en-il\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\EmptyView.scale-400.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Windows Media Player\fr-FR\setup_wm.exe.mui	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription1-ul-oob.xrm-ms	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\Snooze.scale-64.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files\VideoLAN\VLC\lua\http\css\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_KMS_Client-ul-oob.xrm-ms	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\en-GB\tipresx.dll.mui	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\js\nls\tr-tr\ui-strings.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\combinepdf\images\themes\dark\rhp_world_icon.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\nl-nl\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\EmptySearch-Dark.scale-125.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\models\mail.config	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\EmptySearch-Dark.scale-100.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files\VideoLAN\VLC\locale\bn_IN\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\pages-app\js\nls\de-de\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer-select\js\nls\ui-strings.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\js\nls\ru-ru\ui-strings.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\win8-scrollbar\arrow-up.gif	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\export.svg	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Retail-ul-phn.xrm-ms	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcDemoR_BypassTrial365-ppd.xrm-ms	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\js\nls\ro-ro\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\js\nls\he-il\ui-strings.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\am\LC_MESSAGES\vlc.mo	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MEDIA\BOMB.WAV	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MEDIA\SUCTION.WAV	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\js\nls\sv-se\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\js\nls\ca-es\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files\Windows Defender\it-IT\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\STUDIO\THMBNAIL.PNG	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\desktop-connector-files\js\nls\en-ae\ui-strings.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\js\plugins\rhp\createpdfupsell-app-tool-view.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\FileAttachmentPlaceholder.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\offsymt.ttf	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest4-ppd.xrm-ms	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_KMS_Client_AE-ppd.xrm-ms	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Internet Explorer\ie9props.propdesc	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_ellipses_selected-hover.svg	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files\VideoLAN\VLC\locale\id\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\ICE\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN001.XML	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\Internet Explorer\de-DE\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\Doughboy.scale-125.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\7-Zip\readme.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer-select\js\nls\es-es\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\LinkedInboxMediumTile.scale-200.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\RMNSQUE\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_OEM_Perp-ul-oob.xrm-ms	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Locales\fil.pak	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\js\nls\nb-no\ui-strings.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\signatures\js\nls\zh-cn\ui-strings.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\zh-cn\ui-strings.js	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\ExchangeBadge.scale-125.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\fr-FR\msaddsr.dll.mui	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\images\themes\dark\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Tracker\turnOnNotificationInAcrobat.gif	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxA-GoogleCloudCacheMini.scale-125.png	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\Fonts\private\GARA.TTF	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\ja\LC_MESSAGES\vlc.mo	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial1-ppd.xrm-ms	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
File created	C:\Program Files (x86)\WindowsPowerShell\Configuration\Registration\GET_YOUR_FILES_BACK.txt	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

43924 powershell.exe
27372 powershell.exe
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

7632 vssadmin.exe

pid	process
43924	powershell.exe
27372	powershell.exe

pid	process
7632	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exepowershell.exepowershell.exe

pid	process
2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
27372	powershell.exe
27372	powershell.exe
27372	powershell.exe
43924	powershell.exe
43924	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exeWMIC.exepowershell.exevssvc.exe

description	pid	process
Token: SeTakeOwnershipPrivilege	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
Token: SeIncreaseQuotaPrivilege	4324	WMIC.exe
Token: SeSecurityPrivilege	4324	WMIC.exe
Token: SeTakeOwnershipPrivilege	4324	WMIC.exe
Token: SeLoadDriverPrivilege	4324	WMIC.exe
Token: SeSystemProfilePrivilege	4324	WMIC.exe
Token: SeSystemtimePrivilege	4324	WMIC.exe
Token: SeProfSingleProcessPrivilege	4324	WMIC.exe
Token: SeIncBasePriorityPrivilege	4324	WMIC.exe
Token: SeCreatePagefilePrivilege	4324	WMIC.exe
Token: SeBackupPrivilege	4324	WMIC.exe
Token: SeRestorePrivilege	4324	WMIC.exe
Token: SeShutdownPrivilege	4324	WMIC.exe
Token: SeDebugPrivilege	4324	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4324	WMIC.exe
Token: SeRemoteShutdownPrivilege	4324	WMIC.exe
Token: SeUndockPrivilege	4324	WMIC.exe
Token: SeManageVolumePrivilege	4324	WMIC.exe
Token: 33	4324	WMIC.exe
Token: 34	4324	WMIC.exe
Token: 35	4324	WMIC.exe
Token: 36	4324	WMIC.exe
Token: SeDebugPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	28840	vssvc.exe
Token: SeRestorePrivilege	28840	vssvc.exe
Token: SeAuditPrivilege	28840	vssvc.exe
Token: SeIncreaseQuotaPrivilege	4324	WMIC.exe
Token: SeSecurityPrivilege	4324	WMIC.exe
Token: SeTakeOwnershipPrivilege	4324	WMIC.exe
Token: SeLoadDriverPrivilege	4324	WMIC.exe
Token: SeSystemProfilePrivilege	4324	WMIC.exe
Token: SeSystemtimePrivilege	4324	WMIC.exe
Token: SeProfSingleProcessPrivilege	4324	WMIC.exe
Token: SeIncBasePriorityPrivilege	4324	WMIC.exe
Token: SeCreatePagefilePrivilege	4324	WMIC.exe
Token: SeBackupPrivilege	4324	WMIC.exe
Token: SeRestorePrivilege	4324	WMIC.exe
Token: SeShutdownPrivilege	4324	WMIC.exe
Token: SeDebugPrivilege	4324	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4324	WMIC.exe
Token: SeRemoteShutdownPrivilege	4324	WMIC.exe
Token: SeUndockPrivilege	4324	WMIC.exe
Token: SeManageVolumePrivilege	4324	WMIC.exe
Token: 33	4324	WMIC.exe
Token: 34	4324	WMIC.exe
Token: 35	4324	WMIC.exe
Token: 36	4324	WMIC.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeSecurityPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeSecurityPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe
Token: SeSecurityPrivilege	27372	powershell.exe
Token: SeBackupPrivilege	27372	powershell.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.execmd.execmd.execmd.execmd.execmd.exepowershell.exe

description	pid	process	target process
PID 2012 wrote to memory of 3748	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 2012 wrote to memory of 3748	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 2012 wrote to memory of 2404	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 2012 wrote to memory of 2404	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 2012 wrote to memory of 4660	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 2012 wrote to memory of 4660	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 2012 wrote to memory of 4544	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 2012 wrote to memory of 4544	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 2012 wrote to memory of 740	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 2012 wrote to memory of 740	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	cmd.exe
PID 3748 wrote to memory of 4324	3748	cmd.exe	WMIC.exe
PID 3748 wrote to memory of 4324	3748	cmd.exe	WMIC.exe
PID 4660 wrote to memory of 4260	4660	cmd.exe	bcdedit.exe
PID 4660 wrote to memory of 4260	4660	cmd.exe	bcdedit.exe
PID 2404 wrote to memory of 7632	2404	cmd.exe	vssadmin.exe
PID 2404 wrote to memory of 7632	2404	cmd.exe	vssadmin.exe
PID 4544 wrote to memory of 9196	4544	cmd.exe	bcdedit.exe
PID 4544 wrote to memory of 9196	4544	cmd.exe	bcdedit.exe
PID 740 wrote to memory of 27372	740	cmd.exe	powershell.exe
PID 740 wrote to memory of 27372	740	cmd.exe	powershell.exe
PID 2012 wrote to memory of 43924	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	powershell.exe
PID 2012 wrote to memory of 43924	2012	eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe	powershell.exe
PID 43924 wrote to memory of 43492	43924	powershell.exe	reg.exe
PID 43924 wrote to memory of 43492	43924	powershell.exe	reg.exe
PID 43924 wrote to memory of 43064	43924	powershell.exe	rundll32.exe
PID 43924 wrote to memory of 43064	43924	powershell.exe	rundll32.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe
"C:\Users\Admin\AppData\Local\Temp\eba3a5a7171c68752065faeff30716844b53d14bba821bf33002189b64eda115.exe"
1⤵
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c wmic shadowcopy delete /nointeractive
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3748
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic shadowcopy delete /nointeractive
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4324
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:7632
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c bcdedit /set {default} recoveryenabled No
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4660
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {default} recoveryenabled No
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:4260
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4544
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {default} bootstatuspolicy ignoreallfailures
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:9196
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:740
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:27372
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "$a = [System.IO.File]::ReadAllText(\"C:\GET_YOUR_FILES_BACK.txt\");Add-Type -AssemblyName System.Drawing;$filename = \"$env:temp\$(Get-Random).png\";$bmp = new-object System.Drawing.Bitmap 1920,1080;$font = new-object System.Drawing.Font Consolas,10;$brushBg = [System.Drawing.Brushes]::Black;$brushFg = [System.Drawing.Brushes]::White;$format = [System.Drawing.StringFormat]::GenericDefault;$format.Alignment = [System.Drawing.StringAlignment]::Center;$format.LineAlignment = [System.Drawing.StringAlignment]::Center;$graphics = [System.Drawing.Graphics]::FromImage($bmp);$graphics.FillRectangle($brushBg,0,0,$bmp.Width,$bmp.Height);$graphics.DrawString($a,$font,$brushFg,[System.Drawing.RectangleF]::FromLTRB(0, 0, 1920, 1080),$format);$graphics.Dispose();$bmp.Save($filename);reg add \"HKEY_CURRENT_USER\Control Panel\Desktop\" /v Wallpaper /t REG_SZ /d $filename /f;Start-Sleep 1;rundll32.exe user32.dll, UpdatePerUserSystemParameters, 0, $false;"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:43924
- - C:\Windows\system32\reg.exe
    "C:\Windows\system32\reg.exe" add "HKEY_CURRENT_USER\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\1513918393.png /f
    3⤵
    - Sets desktop wallpaper using registry
    PID:43492
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" user32.dll UpdatePerUserSystemParameters 0 False
    3⤵
    PID:43064

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:28840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Windows Management Instrumentation

1

T1047

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

2

T1070

File Deletion

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Inhibit System Recovery

3

T1490

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Downloads

C:\GET_YOUR_FILES_BACK.txt

Filesize
1011B

MD5
36d08e3dadf813cefd755ba410908b16

SHA1
3ec7b14da6eaaf24f99be6c68301a6a7d05e6e5a

SHA256
4b38c6732593914ff892b2ed9fd337d4fa3cac8df096bae3fc532e606b3d1752

SHA512
8828d2f7cd763dfafff76f28ed990498a241ae6abace6fa7ce96060672216143d6c5a92eef8eacdf1060ae239c275571640328452b2e516ed90d8c14b245c52e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
6cf293cb4d80be23433eecf74ddb5503

SHA1
24fe4752df102c2ef492954d6b046cb5512ad408

SHA256
b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8

SHA512
0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
d8b9a260789a22d72263ef3bb119108c

SHA1
376a9bd48726f422679f2cd65003442c0b6f6dd5

SHA256
d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

SHA512
550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fogknyz4.zwi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2012-2-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2012-4-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download
memory/2012-8-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2012-6-0x0000000000401000-0x000000000049D000-memory.dmp

Filesize
624KB

Download
memory/2012-0-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2012-5-0x0000000000640000-0x0000000000683000-memory.dmp

Filesize
268KB

Download
memory/2012-7-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2012-22633-0x0000000000401000-0x000000000049D000-memory.dmp

Filesize
624KB

Download
memory/2012-22631-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2012-3-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/2012-22632-0x0000000000640000-0x0000000000683000-memory.dmp

Filesize
268KB

Download
memory/2012-1-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/27372-16908-0x0000021427FB0000-0x0000021427FD2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads