Analysis
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max time kernel
163s -
max time network
170s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
25-10-2023 14:01
Behavioral task
behavioral1
Sample
1.exe
Resource
win7-20231020-en
windows7-x64
17 signatures
150 seconds
Behavioral task
behavioral2
Sample
1.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
13 signatures
150 seconds
Behavioral task
behavioral3
Sample
2.exe
Resource
win7-20231020-en
windows7-x64
16 signatures
150 seconds
Behavioral task
behavioral4
Sample
2.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
13 signatures
150 seconds
General
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Target
2.exe
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Size
92KB
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MD5
32e3001eb783b182de6b45e5f729d3ba
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SHA1
896a8963fb57c10d30c05b56465401babe48ff0b
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SHA256
2210baa7b596879b413965c17f9f33dbf698ac183b2b82329d397c73dee5fc3d
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SHA512
27572a35b5f21e5217012b93ebe03e59d5dfeea6bd2446316d2e74230b961e6378ae700cd4d78b0033e516adc9f494e8520c01170f74a401204cc84337a92e65
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SSDEEP
1536:mBwl+KXpsqN5vlwWYyhY9S4Ax5ALyqEIxS6CRxVcFuVWZp17i:Qw+asqN5aW/hLL5LqrxSbRYE
Score
10/10
Malware Config
Signatures
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Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (90) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2.exe 2.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2.exe = "C:\\Windows\\System32\\2.exe" 2.exe -
Drops desktop.ini file(s) 4 IoCs
description ioc Process File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3125601242-331447593-1512828465-1000\desktop.ini 2.exe File opened for modification C:\Program Files\desktop.ini 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI 2.exe File opened for modification C:\$Recycle.Bin\S-1-5-21-3125601242-331447593-1512828465-1000\desktop.ini 2.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\System32\2.exe 2.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Common Files\microsoft shared\ink\en-US\InkObj.dll.mui 2.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-white_scale-180.png.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\ICE\THMBNAIL.PNG.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\plugin2\vcruntime140.dll.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Java\jre-1.8\lib\net.properties.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SAMPLES\SOLVSAMP.XLS 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_KMS_Client_AE-ppd.xrm-ms 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Trial-ppd.xrm-ms.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\Cartridges\Informix.xsl.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-ul.xrm-ms 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-pl.xrm-ms 2.exe File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription-ul-oob.xrm-ms.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\STUDIO\THMBNAIL.PNG 2.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Trial-pl.xrm-ms.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\images\Video-48.png.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Java\jre-1.8\legal\jdk\ecc.md.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial2-ul-oob.xrm-ms.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-white_scale-100.png 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\cardview-addtotable-dark.png 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-pl.xrm-ms 2.exe File opened for modification C:\Program Files\7-Zip\Lang\eo.txt.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spl.txt 2.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sv-se.dll.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription5-pl.xrm-ms 2.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\Cartridges\sql70.xsl.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Java\jdk-1.8\jre\legal\javafx\gstreamer.md.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\rsod\officemuiset.msi.16.en-us.boot.tree.dat 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest5-ppd.xrm-ms.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\rsod\onenotemui.msi.16.en-us.boot.tree.dat 2.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ul-oob.xrm-ms.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\VideoLAN\VLC\skins\skin.dtd.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Common Files\System\msadc\de-DE\msadcor.dll.mui 2.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\sqlpdw.xsl.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected].[[email protected]].2023 2.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\fr-FR\oledb32r.dll.mui 2.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\policytool.exe.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Trial-pl.xrm-ms.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-locale-l1-1-0.dll.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\zh-phonetic.xml 2.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\es-ES\tipresx.dll.mui 2.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-black_scale-80.png.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ppd.xrm-ms 2.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\LISTS\1033\DATES.XML 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Trial-ppd.xrm-ms.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11wrapper.md.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\ext\zipfs.jar 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\Office.Runtime.js 2.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\unpack200.exe 2.exe File created C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_200_percent.pak.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ppd.xrm-ms.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ExcelCombinedFloatieModel.bin.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription3-pl.xrm-ms 2.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\BLENDS\THMBNAIL.PNG.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\7-Zip\Lang\br.txt 2.exe File created C:\Program Files\7-Zip\readme.txt.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\ext\sunec.jar.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\accessibility.properties.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_es.properties.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected].[[email protected]].2023 2.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-rtlsupport-l1-1-0.dll 2.exe File created C:\Program Files\Microsoft Office\root\rsod\powerview.x-none.msi.16.x-none.tree.dat.id-A6E5F06F.[[email protected]].2023 2.exe File created C:\Program Files\Mozilla Firefox\defaultagent.ini.id-A6E5F06F.[[email protected]].2023 2.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\et.pak.id-A6E5F06F.[[email protected]].2023 2.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 3620 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe 1956 2.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 1724 vssvc.exe Token: SeRestorePrivilege 1724 vssvc.exe Token: SeAuditPrivilege 1724 vssvc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1956 wrote to memory of 1412 1956 2.exe 91 PID 1956 wrote to memory of 1412 1956 2.exe 91 PID 1412 wrote to memory of 4424 1412 cmd.exe 93 PID 1412 wrote to memory of 4424 1412 cmd.exe 93 PID 1412 wrote to memory of 3620 1412 cmd.exe 94 PID 1412 wrote to memory of 3620 1412 cmd.exe 94 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2.exe"C:\Users\Admin\AppData\Local\Temp\2.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:1956 -
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1412 -
C:\Windows\system32\mode.commode con cp select=12513⤵PID:4424
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:3620
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1724
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.id-A6E5F06F.[[email protected]].2023
Filesize3.2MB
MD5f7aea1f4a09336df7f336f3b38cdbfa9
SHA11c9d5c4d5bed3b4b53d316dfbace4b0df579cec0
SHA256709d4fca8ac67df0ff025520723d673b84ea98293673ee5ec465b835b85e7103
SHA51230453eb148f6c170d147e464c8786db475865f6869099481d7cb8d12ab8b8f81c92d639df998dbcc74dde05cce8e31f74a66a9e3c78164ed07bd134aaffde5c4