484b3a535c24cffa08a32f6e1818e30830331a027e3735d7dd5cfad1ffa57f42

Analysis

max time kernel
119s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 05:08

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General

Target

c1aae1af6d1609ea0e0d7aa123e67a90N.exe
Size

56KB
MD5

c1aae1af6d1609ea0e0d7aa123e67a90
SHA1

e13b181808bcba5b451267177894f3e5fb26f35e
SHA256

484b3a535c24cffa08a32f6e1818e30830331a027e3735d7dd5cfad1ffa57f42
SHA512

bca9120e53ef5aa2054d881559d3cec76d8311ca9425e28ff50f9a0f57dd6144f2362e3edf4426f72fc585889e8866b9cfec0bcd5208148e9476834d6cebeb01
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9BQGwj:V7Zf/FAxTWoJJ7TnQGwj

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4675) 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/316-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233f8-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/316-914-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ObjectModel.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\PresentationCore.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l1-2-0.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_OEM_Perp-ppd.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mscss7cm_es.dub.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\sk-SK\tipresx.dll.mui.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\System.Windows.Forms.Design.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\bci.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019MSDNR_Retail-ppd.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationProvider.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ul-phn.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.ReportingServices.ReportDesign.Common.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_common.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-pl.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Retail-ppd.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Core.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Resources.Reader.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Forms.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationFramework.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXPTOOWS.DLL.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Retail-ppd.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\MICROSOFT.DATA.RECOMMENDATION.COMMON.DLL.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-white_scale-100.png.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Subscription-ppd.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Common Files\System\msadc\msdaprst.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.Specialized.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.Encoding.CodePages.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationCore.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\tipresx.dll.mui.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\WindowsFormsIntegration.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\word2013.dotx.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Requests.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\mshwLatin.dll.mui.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\DisconnectRename.vdx.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-errorhandling-l1-1-0.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\msvcp140_1.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\COPYRIGHT.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_MAK_AE-ul-phn.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Primitives.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationClient.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\Microsoft.VisualBasic.Forms.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\UIAutomationTypes.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Accessibility.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ReachFramework.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_MoveNoDrop32x32.gif.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AUDIOSEARCHSAPIFE.DLL.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVOrchestration.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\PresentationUI.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTest-pl.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\ClearOut.xltx.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\PresentationUI.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_100_percent.pak.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription3-pl.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\PresentationUI.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Grace-ul-oob.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\cpprestsdk.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Forms.Design.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\PresentationCore.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Xaml.resources.dll.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-white_scale-180.png.tmp	c1aae1af6d1609ea0e0d7aa123e67a90N.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	c1aae1af6d1609ea0e0d7aa123e67a90N.exe

C:\Users\Admin\AppData\Local\Temp\c1aae1af6d1609ea0e0d7aa123e67a90N.exe
"C:\Users\Admin\AppData\Local\Temp\c1aae1af6d1609ea0e0d7aa123e67a90N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:316

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-1-5-21-4182098368-2521458979-3782681353-1000\desktop.ini.tmp

Filesize
56KB

MD5
e5df95c471d962ef9695d30ef6f81b71

SHA1
193c0606e65b09362a915bf5c63130edf3cda7c7

SHA256
f90308b0930e42045bab3df24d0fb2b14caf780c44c17accceecdd8934449063

SHA512
7c8495daac2c5c47ba92899ed333407a59abaf217d66482f06bfb78018e955845b05e84d4d243e9e8b0e2f33638c39e2a53c75e705e2f1b740914d055cac1b4e

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

Filesize
155KB

MD5
1abcf08990fb8e25c106d4779c2be348

SHA1
7d7758160339b3a3f72b41bd15edeabfbe00d52c

SHA256
7f58b880bfb15cfca7e8c81dc6f4bb780dab2e03a85d1bf6ca9dc6afe9acf751

SHA512
4f52b641e3bb0a3b1949359d6fbb202de04e4d1b98a1518cfb680a3e1f4f18da7e2af9f59c56ff44fa76659aa4fe938e0c6774e1ee5091d1cf9868e3f7b035ea

Download Submit
memory/316-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/316-914-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download