8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367be

Analysis

max time kernel
150s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2024, 12:49

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General

Target

8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
Size

92KB
MD5

9aa8b1323b9ef46ffe3ab1db19414420
SHA1

21e88f0a1e9423fb032c0f8ecab018b741b2534c
SHA256

8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367be
SHA512

e0a6f0648cf00c35f9d4a9c641b0d2771e03ecd110ae20897065255222c3ab203fb0622d8e7251908bf658187bc4f2509b08b7bf90d1f665fe6804b9da2358f5
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxY5wTC:fnyiQSox5wTC

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5032) 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/3084-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b62-2.dat	upx
behavioral2/files/0x001400000002292e-6.dat	upx
behavioral2/memory/3084-748-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Aero2.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\resources.pak.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\msvcp140_2.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest2-ppd.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest4-ppd.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTrial-pl.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Common Files\System\msadc\msadds.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.PerformanceCounter.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Numerics.Vectors.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Printing.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfxmedia.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial2-pl.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail2-pl.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipssrb.xml.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ThirdPartyNotices.MSHWLatin.txt.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.ReportingServices.QueryDesigners.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\APASixthEditionOfficeOnline.xsl.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_ghost_school.png.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\clrjit.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Java\jdk-1.8\bin\serialver.exe.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\DirectWriteForwarder.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Controls.Ribbon.resources.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\wxpr.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\id\msipc.dll.mui.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Common Files\System\ado\msado20.tlb.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.SecureString.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ONLNTCOMLIB.DLL.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\cardview-flag.png.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_KMS_Client_AE-ul.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-white_scale-80.png.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Grace-ppd.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\MicrosoftDataStreamerforExcel.dll.config.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Common Files\System\ado\msado27.tlb.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp4-pl.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Grace-ppd.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Forms.Design.resources.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Retail-ul-oob.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Retail-pl.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT_COL.HXT.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelFloatieXLEditTextModel.bin.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\dotnet.exe.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XPath.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\Bibliography\BIBFORM.XML.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\manifest.xml.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Presentation.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-pl.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_MAK-ul-oob.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.Primitives.resources.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\WindowsBase.resources.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-string-l1-1-0.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Georgia.xml.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-pl.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.DiaSymReader.Native.amd64.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Cng.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.scale-80.png.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-processthreads-l1-1-1.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Java\jre-1.8\bin\server\jvm.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\no\msipc.dll.mui.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\PresentationFramework.resources.dll.tmp	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.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	8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe

C:\Users\Admin\AppData\Local\Temp\8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe
"C:\Users\Admin\AppData\Local\Temp\8cae4044b2c945c2fd4c4d634ca87a8a22cf6699479e200a547db28c063367beN.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3084

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-1-5-21-940901362-3608833189-1915618603-1000\desktop.ini.tmp

Filesize
92KB

MD5
3050724c12f9740e86b277e8814f35dd

SHA1
7f13559cfd23fd967edc6ec8fe73ad1d96e8b470

SHA256
52bc72efee4f6c71245f50417e56e8a708cce46f6fe060b32ecd57f32f7bd5d4

SHA512
3d4e711b2090eb8f2f7b31e57abdde67eea1b51262f7ef9d2c6c07cf87448d9e3587c9a828ce7011c04307329757ce3c4bacf70662800018bffa9287fc64bab6

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

Filesize
191KB

MD5
7027fa652ba45356c7d3109504060c0f

SHA1
6b4e6eb24c98669d1f3cc9070234bcf632e6164a

SHA256
a8a0acda930cf022c97817bcdf7eee039f6de1066c3887fa77f899a2ee3efad5

SHA512
9f6be53dee73619693aefc15d8087dade369d5d028e5f9c6ce4857195580bacd645a091d44ab35c2fdeb8b282cddf0dde17d837f4faa459851364aefb27a444e

Download Submit
memory/3084-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3084-748-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download