d32848fc09fb814245e327e4d417904ca4b5ae7b666e3ff05aaf2fd384de9d54

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2024, 06:57

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General

Target

a765590f8485e653819d8e0832b1fc90N.exe
Size

54KB
MD5

a765590f8485e653819d8e0832b1fc90
SHA1

2cfad5d0fb72e190b59752351daca2670a596b97
SHA256

d32848fc09fb814245e327e4d417904ca4b5ae7b666e3ff05aaf2fd384de9d54
SHA512

61a25cf71bac2fcf91410c540e795fae78b6e962efa3e44c2fe96dc36208dbcee3495b9652900345d4ba27af0443bcac0437ef62d532605419838b30b664b3bb
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATNy2/mepYXwILQ7ZVnEbisFhiXFhari:CTW7JJZENTNyavf73tQqarjry

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4528) 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/2444-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0009000000023474-2.dat	upx
behavioral2/files/0x0004000000022922-6.dat	upx
behavioral2/memory/2444-802-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\ado\msado60.tlb.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-runtime-l1-1-0.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-pl.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\WindowsBase.resources.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationTypes.resources.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\setup.exe.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jstack.exe.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Retail-ul-phn.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Aero.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\D3DCompiler_47_cor3.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\pkeyconfig-office-client15.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipRes.dll.mui.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Channels.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\System.Windows.Forms.resources.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\Microsoft.VisualBasic.Forms.resources.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Century Gothic-Palatino Linotype.xml.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfr.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.office32mui.msi.16.en-us.xml.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription2-ppd.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ul-phn.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHLTS.DAT.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\ReportingServicesNativeClient.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART9.BDR.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Xaml.resources.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\WindowsBase.resources.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0090-0000-1000-0000000FF1CE.xml.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_Subscription-ppd.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Grace-ul-oob.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ospintl.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.Office.Tools.Excel.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\TURABIAN.XSL.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\el.pak.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-ul-phn.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-pl.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.PowerBI.Diagnostics.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelCtxUIFormulaBarModel.bin.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-timezone-l1-1-0.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\cmm\sRGB.pf.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.PowerPoint.PowerPoint.x-none.msi.16.x-none.xml.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\7-Zip\Lang\nn.txt.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Cryptography.Pkcs.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Office Theme.thmx.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses\c2rpridslicensefiles_auto.xml.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART13.BDR.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\InputPersonalization.exe.mui.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_WHATSNEW.XML.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.scale-180.png.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Yellow Orange.xml.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.dcfmui.msi.16.en-us.xml.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp2-ul-oob.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-ppd.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTest-ppd.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\ea.xml.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Classic.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Threading.AccessControl.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\UIAutomationProvider.resources.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_PrepidBypass-ppd.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Common Files\microsoft shared\VC\msdia90.dll.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\nashorn.jar.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-ul-phn.xrm-ms.tmp	a765590f8485e653819d8e0832b1fc90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\BCSRuntimeRes.dll.tmp	a765590f8485e653819d8e0832b1fc90N.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	a765590f8485e653819d8e0832b1fc90N.exe

C:\Users\Admin\AppData\Local\Temp\a765590f8485e653819d8e0832b1fc90N.exe
"C:\Users\Admin\AppData\Local\Temp\a765590f8485e653819d8e0832b1fc90N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2444

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-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini.tmp

Filesize
54KB

MD5
1c390cf7b875950a9bb605030d190fcb

SHA1
7661c7dbbc3df41c90ddb5588846968dbf6ec362

SHA256
ff3f9c8d86f9fd655ca1bfc7328358a1cca282f5f5485bd07c1d6faf99a18f25

SHA512
2d8c9f92142e8f8ea34b01596b0ab7af32839f2e2be3bbbeb61b8d500c9ffcf7c7062069606d3ff20a881102038afee6436361c684c9e693dc4af05fc3e07ed1

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

Filesize
153KB

MD5
ec3db00542d3a439185ad9967ab956e1

SHA1
c3de409be6a8d9fbdc3d6abc027ea4fc975b69f1

SHA256
116effe604896b3cd5f15bcc578a3fc7bd8e38d0fb4136754deee07fb01accc8

SHA512
c10ae89c6bb69f765e39887cc0760600b47aee925c28a5f341d9663dadf1bbb32600fe2e6c35cf339887a97a68958bcb5bf4dbb12d4f058b7d874572f97e1edb

Download Submit
memory/2444-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2444-802-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download