cf3a238308754e5781ad5544c03358b17b2fd68e19c63be12e8f2e0a1048241b

Analysis

max time kernel
120s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
21/07/2024, 13:46

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General

Target

cfa9b7f221576b2eb0cbd72d40d395e0N.exe
Size

49KB
MD5

cfa9b7f221576b2eb0cbd72d40d395e0
SHA1

ccd0a6a4fcc5bf28955558931899a9090e1621bb
SHA256

cf3a238308754e5781ad5544c03358b17b2fd68e19c63be12e8f2e0a1048241b
SHA512

70fa614c3f2324e7920f93c6d2a4a51fa109ba91235dbc522cf63fc5055194fd0adc4f2bef547d3a1e97024b61e03f207f2c3c9855321628c19ccb47bfbd9a9e
SSDEEP

768:kBT37CPKKIm0CAbLg++PJHJzIWD+dVdCYgck5sIZFlzc3/Sg2aDM9uA9DM9uAFzH:CTWn1++PJHJXA/OsIZfzc3/Q8zxR

Score

9^/10

ransomware upx

Malware Config

Signatures

Renames multiple (4184) 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/1980-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0009000000023401-2.dat	upx
behavioral2/files/0x001400000002291a-6.dat	upx
behavioral2/memory/1980-936-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Transactions.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-utility-l1-1-0.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SETLANG_K_COL.HXK.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\resource.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\pkcs11wrapper.md.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ul-phn.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Xaml.resources.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\lv-LV\tipresx.dll.mui.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\ReachFramework.resources.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sawindbg.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\cryptix.md.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_KMS_Client-ul-oob.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Storage.XmlSerializers.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-convert-l1-1-0.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lt-lt.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.zh-cn.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrlatinlm.dat.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\wpfgfx_cor3.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.common.16.xml.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTest-pl.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeOneNote.nrr.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVIsvSubsystemController.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\WindowsFormsIntegration.resources.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Reader.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ppd.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.ReportingServices.Interfaces.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\xerces.md.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_OEM_Perp-ul-oob.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vcruntime140.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.Design.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ul-phn.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Ping.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\sr.pak.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\icu.md.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_Subscription-ul-oob.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WacLangPackEula.txt.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\PresentationFramework.resources.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial-pl.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javafxpackager.exe.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Trial-pl.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-phn.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\lcms.md.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\WindowsFormsIntegration.resources.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTest-ul-oob.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\7-Zip\7-zip.chm.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\relaxngcc.md.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_LinkDrop32x32.gif.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.OleDbInterop.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Overlapped.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ppd.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymsb.ttf.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\7-Zip\Lang\de.txt.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest4-ppd.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Trial-ul-oob.xrm-ms.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Forms.Primitives.resources.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\UIAutomationClientSideProviders.resources.dll.tmp	cfa9b7f221576b2eb0cbd72d40d395e0N.exe

C:\Users\Admin\AppData\Local\Temp\cfa9b7f221576b2eb0cbd72d40d395e0N.exe
"C:\Users\Admin\AppData\Local\Temp\cfa9b7f221576b2eb0cbd72d40d395e0N.exe"
1⤵
- Drops file in Program Files directory
PID:1980

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-2990742725-2267136959-192470804-1000\desktop.ini.tmp

Filesize
49KB

MD5
e00bff472061626e1223099fa4a0f749

SHA1
5ef253892c5414d1b258d6fca6754d1003b1ca38

SHA256
42c32247e289bfa31fc3e7cf60d7abbed2ab0d220d8ef8066f366e4c450deac1

SHA512
c9fb65d60eea2eb27ab4688ff0b55818e258e7387590fb605f37e0eca9c1f8f3e069214bfef2d213835886c0fe9c9c5467cf53227161ba31234b0933236012de

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

Filesize
148KB

MD5
d234879401ddf9723a557f0c28783f13

SHA1
4c68a477c9f71c486468d4abed7ee18228691f72

SHA256
82adbe45a17d9aab6bb555868b093b42001efcc523cce2843911f72729b14ba7

SHA512
4d94c497382c784b956cea816fd1d49329e013911b87454ec3477ecab065c9765aca00bce948663bafaa64e225763f0c163e04615124aca0505937dbd9bc1ac9

Download Submit
memory/1980-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1980-936-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads