9ab62910818ea9dd7c54777e4af652521a40c5b996502db61f4f1f0ebc9fda8f

Analysis

max time kernel
120s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/09/2024, 01:38

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General

Target

81804d6ce551a73b38a5e844a8cb2290N.exe
Size

50KB
MD5

81804d6ce551a73b38a5e844a8cb2290
SHA1

b821c18dfa78f50ea87f0ea4f73753a8f7a393c8
SHA256

9ab62910818ea9dd7c54777e4af652521a40c5b996502db61f4f1f0ebc9fda8f
SHA512

2d599404150db8928151b077a07c1a809a93456f43233bb5b5c19ba5579e83b0003c8d5d830fe28af8f4553a13c025fbf2a1fc9ec5cae6a30e40627fd6288525
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9nGcjkK2rvVk//Nyz/VCyz/Vh:CTW7JJ7T7jkKCVk//NypCyph

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4652) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3168-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0008000000023482-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/3168-864-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\PresentationFramework.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\es-419.pak.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri Light-Constantia.xml.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\STSLIST.CHM.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Excel.Common.FrontEnd.XmlSerializers.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Drawing.Primitives.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\amd64\jvm.cfg.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr\profile.jfc.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Grace-ppd.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Trial-pl.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT_COL.HXT.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_ghost_school.png.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.scale-80.png.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jre-1.8\lib\psfont.properties.ja.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTrial-ppd.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\rtscom.dll.mui.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\System.Windows.Forms.Primitives.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationClient.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\ReachFramework.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsdt.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management\snmp.acl.template.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-pl.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-pl.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\vstoee90.tlb.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\Microsoft.VisualBasic.Forms.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\System.Windows.Forms.Design.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationTypes.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-stdio-l1-1-0.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mip_upe_sdk.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Input.Manipulations.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationClientSideProviders.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Trial-pl.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ShapeCollector.exe.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\InstallRepair.wmf.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\7-Zip\Lang\sr-spl.txt.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Common Files\System\ado\msadox28.tlb.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\UIAutomationProvider.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\PresentationUI.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-console-l1-1-0.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javafx_font.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-pl.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-pl.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\.version.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\[email protected]	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00C1-0000-1000-0000000FF1CE.xml.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial5-pl.xrm-ms.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\oledb32r.dll.mui.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Tasks.Extensions.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\msquic.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\ReachFramework.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\UIAutomationClient.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-console-l1-1-0.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\en\LocalizedStrings.xml.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Forms.Primitives.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\UIAutomationTypes.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\WindowsBase.resources.dll.tmp	81804d6ce551a73b38a5e844a8cb2290N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	81804d6ce551a73b38a5e844a8cb2290N.exe

C:\Users\Admin\AppData\Local\Temp\81804d6ce551a73b38a5e844a8cb2290N.exe
"C:\Users\Admin\AppData\Local\Temp\81804d6ce551a73b38a5e844a8cb2290N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-656926755-4116854191-210765258-1000\desktop.ini.tmp

Filesize
50KB

MD5
3814f8966ff983ed3f02c11bc75d67c8

SHA1
6f0b76241f060f38cb8b1f6d4a9065201ab23603

SHA256
c3b87738e2f93154cad0e6e247a3614217fcbe19ad8acea5c2c2f1ba23ffd4d1

SHA512
22bb8a5b246db7d07cc3ec54d2e56ed8736a18b5c08a8817ed450d2c62b3cdc4bd615c88287d974cc1aac8beb46a2d6db94815e3d0898272bb285adfd5d6884d

Download Submit
C:\Program Files\7-Zip\7-zip.dll.tmp

Filesize
149KB

MD5
f211319e58faccf1f098223f0fa26683

SHA1
389491798b0cfd16c50167573e8cecbb6e6c2cad

SHA256
92b6be13dd4235036d2bb4a82ffbea02a03bce499224338d983793b16dee252e

SHA512
8a225cc35889098d0f736e95f45d4f27b97b09588c01b0a406f97b2d596ff31d9413f3307754bf7a249b895e33a278fb8fedaa27c49bd162ade11890a1a5001b

Download Submit
memory/3168-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3168-864-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download