7588a6ff607472d7eba6c3b6812fa89ad5d8c0920c95c6e0efa556e94ec29659

Analysis

max time kernel
120s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 12:34

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General

Target

da8b76047bf13dde9b89570126ea6fd0N.exe
Size

56KB
MD5

da8b76047bf13dde9b89570126ea6fd0
SHA1

a8d794acb38cc0e4fb0eb3b39411bc641b1b9a0f
SHA256

7588a6ff607472d7eba6c3b6812fa89ad5d8c0920c95c6e0efa556e94ec29659
SHA512

d6db0fe100eaeefb76541070d2742128319c400c43038d666ef2bfa8b1e38c6cdcbae7408c09e8ad7f6032cad74d20c59e025db96a3ab714d64339166861ed78
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJcbQbf1Oti1JGBQOOiQJhATNydWK9WKF9ADJI:V7Zf/FAxTWoJJZENTNyoKIKMe

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4649) 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/5084-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023463-2.dat	upx
behavioral2/files/0x00080000000234c3-6.dat	upx
behavioral2/memory/5084-900-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteFreeR_Bypass-ppd.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSBARCODE.DLL.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\cpprestsdk.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msdaprsr.dll.mui.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Linq.Parallel.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Forms.Primitives.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems32.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-processthreads-l1-1-1.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Extensions.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-ppd.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.NETCore.App.deps.json.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Controls.Ribbon.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial-pl.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-ppd.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\PowerPivotExcelClientAddIn.tlb.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-convert-l1-1-0.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebSockets.Client.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\System.Windows.Controls.Ribbon.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_KMS_Client-ul.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\TipRes.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-time-l1-1-0.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.VisualBasic.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Forms.Primitives.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.ReaderWriter.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Internet Explorer\es-ES\ieinstal.exe.mui.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-errorhandling-l1-1-0.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\SIST02.XSL.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Forms.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\System.Windows.Input.Manipulations.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\WIND.WAV.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSVCP140_APP.DLL.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\colorimaging.md.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Trial-pl.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT_K_COL.HXK.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Mail.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\WindowsFormsIntegration.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.VisualBasic.Forms.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-datetime-l1-1-0.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-stdio-l1-1-0.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationClient.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_Grace-ul-oob.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Forms.Design.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jstat.exe.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Trial-pl.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-white_scale-180.png.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-black_scale-100.png.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Drawing.Design.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\LogoBeta.png.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-ppd.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-pl.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientARMRefer_eula.txt.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\7-Zip\7-zip.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-heap-l1-1-0.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.UnmanagedMemoryStream.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\PresentationFramework.resources.dll.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\sunjce_provider.jar.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_OEM_Perp-ul-phn.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordVL_MAK-ppd.xrm-ms.tmp	da8b76047bf13dde9b89570126ea6fd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSO.FRAMEPROTOCOLWIN32.DLL.tmp	da8b76047bf13dde9b89570126ea6fd0N.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	da8b76047bf13dde9b89570126ea6fd0N.exe

C:\Users\Admin\AppData\Local\Temp\da8b76047bf13dde9b89570126ea6fd0N.exe
"C:\Users\Admin\AppData\Local\Temp\da8b76047bf13dde9b89570126ea6fd0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5084

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
57KB

MD5
8f34e7144613696fb142c88fcb1478a0

SHA1
4487b56c4e312462b854578e9fd99a7534f49b57

SHA256
0d2b9e85146a72f5e18065e65ba35f3e92da6f6b56818d4f9f8399a2d101124b

SHA512
5f47b5818ce97843bc6678558ac4bea1cb8c6eefeda85c25e816eddb394ea2fd663c826b157d85caa286f3de3bfc89ec29eb6addbefc83d7ee9d5d507d9350b7

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

Filesize
155KB

MD5
cb00cc0ee6d1f492715b29fb98f954b2

SHA1
e224179df66b96c6bebec27a74c9c80dacfc459a

SHA256
f048811fa0ad1a11a4d4af779194c5ac2d874c919a7226e1220641f723a6ea6f

SHA512
84271bbde2d1d042d038e8f9b0d46f28822326f42e074dffcde347c37d0b63142cb2c4e0bfd979b019be771749d1b02124c9ab430a1d02dd7b2462a64b2b84eb

Download Submit
memory/5084-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5084-900-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download