dharma | 4bbdf86d327ac03a42048029850d82af8cd93ee3937daf44693fab983e16ea75

General

Target

build.exe
Size

92KB
MD5

411f12fb592afc7f32456cbb18ecaf71
SHA1

22573293e8d3a95109322beb4010446402bd783f
SHA256

141043cebebde233ff9e5e003079dcdd3eda14b4785b6917dffbe5966fe77a82
SHA512

221b1a51823c471c0ef45ad8044c6d219a15422ff17c3771ff7a77dcb9c7a36522ec1bbda5129636b3622217ea8f40b9a3d340887c047b7e9f6da1d02d2a82a0

Score

10^/10

dharma persistence ransomware

Malware Config

Signatures

Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
ransomware dharma
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Drops startup file 1 IoCs

Processes:

build.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\build.exe build.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\build.exe	build.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

build.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\build.exe = "C:\\Windows\\System32\\build.exe"	build.exe

Drops desktop.ini file(s) 3 IoCs

Processes:

build.exe

description	ioc	process
File opened for modification	C:\$Recycle.Bin\S-1-5-21-2632097139-1792035885-811742494-1000\desktop.ini	build.exe
File opened for modification	C:\Program Files\desktop.ini	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI	build.exe

Drops file in System32 directory 1 IoCs

Processes:

build.exe

description ioc process

File created C:\Windows\System32\build.exe build.exe

description	ioc	process
File created	C:\Windows\System32\build.exe	build.exe

Drops file in Program Files directory 64 IoCs

Processes:

build.exe

description	ioc	process
File opened for modification	C:\Program Files\Google\Chrome\Application\master_preferences	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\desktop-connector-files\js\nls\fr-fr\ui-strings.js.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sr-spl.txt.id-390233FC.[[email protected]].ROGER	build.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\config\Modules\org-netbeans-core-multitabs.xml.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_neutral_split.scale-200_8wekyb3d8bbwe\Win10\MicrosoftSolitaireSmallTile.scale-200.jpg	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\Assets\Audio\Skype_In_App_Notification.m4a	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-16_altform-unplated_contrast-black.png	build.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxCalendarSmallTile.scale-125.png	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\AppList.targetsize-96.png	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_OEM_Perp-ppd.xrm-ms	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\Assets\Images\SkypeTile.scale-200.png	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\AppCore\Location\Shifter\Relicensing Statement.txt	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_editpdf_18.svg	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\hu-hu\ui-strings.js	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\contrast-white\OrientationControlInnerCircle.png	build.exe
File created	C:\Program Files\7-Zip\Lang\nb.txt.id-390233FC.[[email protected]].ROGER	build.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\vstoee.dll.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-white\OneNoteAppList.targetsize-30_altform-unplated.png	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer-select\js\nls\hu-hu\ui-strings.js	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\Download_on_the_App_Store_Badge_cs_135x40.svg	build.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\unpack200.exe.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.DataIntegration.FuzzyMatching.dll.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\css\main.css	build.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\Localized_images\ko-kr\PlayStore_icon.svg.id-390233FC.[[email protected]].ROGER	build.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.mbeanbrowser.ja_5.5.0.165303.jar.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\js\nls\en-ae\ui-strings.js	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\de-de\ui-strings.js.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\pt-BR\tipresx.dll.mui	build.exe
File created	C:\Program Files\Microsoft Office\root\Templates\1033\TimelessReport.dotx.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\plugins\tracked-send\js\nls\de-de\ui-strings.js	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Retail-ppd.xrm-ms	build.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\modules\locale\org-netbeans-modules-spi-actions_zh_CN.jar	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Tracker\bl.gif.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Excel.Common.FrontEnd.XmlSerializers.dll.id-390233FC.[[email protected]].ROGER	build.exe
File created	C:\Program Files\Java\jre1.8.0_66\bin\npt.dll.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\generic-rhp-app\images\themes\dark\rhp_world_icon.png	build.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\leftnav.gif.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\fr-fr\ui-strings.js	build.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sk-sk.dll.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.core_0.10.100.v20140424-2042.jar.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\ktab.exe.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\win-scrollbar\themes\dark\vscroll-thumb.png.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\app\dev\nls\ca-es\ui-strings.js.id-390233FC.[[email protected]].ROGER	build.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\ro-ro\ui-strings.js.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.exe.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\Assets\ScreenSketchSquare44x44Logo.targetsize-48_altform-unplated_contrast-black_devicefamily-colorfulunplated.png	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ExcelCtxUICellModel.bin	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_KMS_Client_AE-ppd.xrm-ms.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\desktop-connector-files-select\css\main-selector.css	build.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.feature_3.9.0.v20140827-1444\asl-v20.txt.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxMailMediumTile.scale-150.png	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-96_contrast-white.png	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTrial-pl.xrm-ms	build.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\pages-app\css\main.css	build.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\plugins\tracked-send\images\cstm_brand_preview.png.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN095.XML	build.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Assets\Images\contrast-black\Settings.png	build.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\olh.htm.id-390233FC.[[email protected]].ROGER	build.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected].[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\rmid.exe.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ul-phn.xrm-ms.id-390233FC.[[email protected]].ROGER	build.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial5-ul-oob.xrm-ms	build.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsCamera_2018.826.98.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraSmallTile.contrast-black_scale-125.png	build.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\lib\jfxswt.jar	build.exe

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

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

4568 vssadmin.exe

pid	process
4568	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

build.exe

pid	process
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe
3016	build.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 5076 vssvc.exe
Token: SeRestorePrivilege 5076 vssvc.exe
Token: SeAuditPrivilege 5076 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	5076	vssvc.exe
Token: SeRestorePrivilege	5076	vssvc.exe
Token: SeAuditPrivilege	5076	vssvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

build.execmd.exe

description	pid	process	target process
PID 3016 wrote to memory of 4964	3016	build.exe	cmd.exe
PID 3016 wrote to memory of 4964	3016	build.exe	cmd.exe
PID 4964 wrote to memory of 3408	4964	cmd.exe	mode.com
PID 4964 wrote to memory of 3408	4964	cmd.exe	mode.com
PID 4964 wrote to memory of 4568	4964	cmd.exe	vssadmin.exe
PID 4964 wrote to memory of 4568	4964	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3016

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4964

C:\Windows\system32\mode.com
mode con cp select=1251
3⤵
PID:3408

C:\Windows\system32\vssadmin.exe
vssadmin delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:4568

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

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Downloads

memory/3408-131-0x0000000000000000-mapping.dmp

Download
memory/4568-132-0x0000000000000000-mapping.dmp

Download
memory/4964-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads