afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261

Analysis

max time kernel
150s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-10-2024 02:16

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General

Target

afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
Size

121KB
MD5

6cd7bce15a8540107d23b353f85caceb
SHA1

280a587654c5739d5258e0729097ea3c2a06de47
SHA256

afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261
SHA512

53ed179783a927a0e99a0b8fe69088de6bde5c5a62573310c9dbbd386c55b502d558a3025324c1bd8fc8e922573d73f7ea055aca21a2b5ef566c0c1ded30411e
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxkNb4mwe:fnyiQSozNb4mwe

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4775) 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/3948-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000c000000023ba1-2.dat	upx
behavioral2/files/0x001400000002291d-6.dat	upx
behavioral2/memory/3948-660-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.Annotations.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.UnmanagedMemoryStream.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encoding.CodePages.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Forms.Design.resources.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-math-l1-1-0.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessRuntime2019R_PrepidBypass-ul-oob.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProMSDNR_Retail-ppd.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_Subscription-ul-oob.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\JitV.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.scale-140.png.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Common Files\System\Ole DB\ja-JP\oledb32r.dll.mui.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Data.DataSetExtensions.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationTypes.resources.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Xaml.resources.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-ppd.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\7-Zip\Lang\va.txt.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\Content.xml.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Forms.resources.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Cryptography.Xml.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Java\jdk-1.8\jre\THIRDPARTYLICENSEREADME.txt.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\sqlxmlx.rll.mui.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.RegularExpressions.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.Win32.Primitives.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.deps.json.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Internet Explorer\iediagcmd.exe.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-debug-l1-1-0.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-processthreads-l1-1-1.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\hprof.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Java\jdk-1.8\jre\LICENSE.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_pt_BR.properties.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-white_scale-140.png.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\fr\msipc.dll.mui.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-string-l1-1-0.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Green Yellow.xml.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-pl.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-ul-phn.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-pl.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\DIFF_MATCH_PATCH_WIN32.DLL.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.scale-80.png.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationClient.resources.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Aero2.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationTypes.resources.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\af.pak.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-pl.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL054.XML.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\PresentationCore.resources.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Trial-ul-oob.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipTsf.dll.mui.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\WindowsBase.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_Subscription-pl.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.ReportingServices.DataExtensions.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-file-l1-2-0.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.scale-80.png.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail3-ul-phn.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ul-phn.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXPTOOWS.XLA.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\NL7MODELS000C.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL086.XML.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL089.XML.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\UIAutomationProvider.resources.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-datetime-l1-1-0.dll.tmp	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.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	afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe

C:\Users\Admin\AppData\Local\Temp\afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe
"C:\Users\Admin\AppData\Local\Temp\afcaa7e091fce3cd3dd267e1edd58df60f9713300ca86e0152d9bc53d21c9261.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3948

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-1-5-21-3756129449-3121373848-4276368241-1000\desktop.ini.tmp

Filesize
122KB

MD5
6ca0d3954b6893c46091e84e57738371

SHA1
0b7ea35fd08e549967ec91db4f0e0a2966b7a506

SHA256
aa0eccf0ead07a04005ee1fa938d4da01638da02d801db4c152ee8a057ce52f3

SHA512
14e79fbf2903c1794d9995ff4c2554be709abb8e643fc4a65e959243fb72e10a86b7a79cd915e8b5044cc86a82359829ecba1a3e9febbb9d70bbe90a7854c236

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

Filesize
220KB

MD5
c2e19d3e5d89f3648dad9285f89e6542

SHA1
1842de86bb524221aeabdaf52f66e40b12d8189b

SHA256
eb89e0a64eb49f56e3f27cd4b926afc90c1a219a2393bed3439b3e7ee23db8b1

SHA512
c0edfa100060708ef782079b0e6a96451c73e2a715c03b65d483e2850b14a28e6431c43de066a8227d1faa1de18e801c6b3247484ae0020c109b7d445d4604d1

Download Submit
memory/3948-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3948-660-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download