d4cbfa6d7004f91ee70973767ff8f684066d8089553f13bf7a50814f3e860351

Analysis

max time kernel
120s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 10:06

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General

Target

fe33d3062e23f4ace3ba87af7ddceef0N.exe
Size

74KB
MD5

fe33d3062e23f4ace3ba87af7ddceef0
SHA1

287cf4c63607530a6f03c6f9f063aae2ea719780
SHA256

d4cbfa6d7004f91ee70973767ff8f684066d8089553f13bf7a50814f3e860351
SHA512

2a3b9b4ed4473a98d3f1817a8e5405764ba825604a5551c8963c6ab5ebb7a9170354198f1bf5b0443398c7c757200bd7a5b339609d5343b11c28e6046272827f
SSDEEP

1536:CTWn1++PJHJXA/OsIZfzc3/Q8IZf2XcqvcYC:KQSo7Zf2X0

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4652) 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/3840-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000234ce-2.dat	upx
behavioral2/files/0x00080000000234e3-6.dat	upx
behavioral2/memory/3840-903-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\de-DE\msinfo32.exe.mui.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msxactps.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Presentation.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Internet Explorer\SIGNUP\install.ins.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\sunjce_provider.jar.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\C2R64.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\tr\msipc.dll.mui.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\ja-JP\sqlxmlx.rll.mui.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\UIAutomationProvider.resources.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\currency.data.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Trial-ppd.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Retail-ul-phn.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\WindowsBase.resources.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_Subscription-pl.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-process-l1-1-0.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Ping.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\UIAutomationProvider.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Retail-ul-phn.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSOUC.HXS.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\msvcp140.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemData.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-synch-l1-2-0.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_KMS_Client-ul-oob.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ppd.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.zh-cn.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_MAK-pl.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_MAK_AE-ppd.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\fxplugins.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue Warm.xml.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_OEM_Perp-ppd.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fontconfig.bfc.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-oob.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ul-oob.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\en-US\sqloledb.rll.mui.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.StackTrace.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\UIAutomationClientSideProviders.resources.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management\jmxremote.password.template.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-synch-l1-2-0.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.osmuxmui.msi.16.en-us.xml.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial-ul-oob.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp3-ul-phn.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_MAK_AE-ul-phn.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\msjet.xsl.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationClient.resources.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O17EnterpriseVL_Bypass30-ul-oob.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-pl.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Mail.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationProvider.resources.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription5-pl.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-ul-phn.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsyml.ttf.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.VisualStudio.Tools.Applications.Runtime.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Localytics.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Xaml.resources.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Retail-ppd.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-ppd.xrm-ms.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\WindowsBase.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.PerformanceCounter.dll.tmp	fe33d3062e23f4ace3ba87af7ddceef0N.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	fe33d3062e23f4ace3ba87af7ddceef0N.exe

C:\Users\Admin\AppData\Local\Temp\fe33d3062e23f4ace3ba87af7ddceef0N.exe
"C:\Users\Admin\AppData\Local\Temp\fe33d3062e23f4ace3ba87af7ddceef0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3840

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
75KB

MD5
b175d3eb8dd992d9878a1f34da9dd7cb

SHA1
04c60bc1c4e95ee93edd7eb001e663dfeb269c44

SHA256
7b561ad39008e0851fce5cd6099731b3da14ecfef5ae15f6ce8581112c777b2b

SHA512
c59c53dafb04415d94da7b59480ed9484f0bf2424817f124f163b5268433a601453ddf5dbb9191a3889309e7a1ce88ca3b5c8803f3a5c03f93699b92ed8b6287

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

Filesize
173KB

MD5
f32aeae6f10419eb0b790cc46c4085c2

SHA1
f63e2fc36856be63546b60d7cabcbfe78c39cd09

SHA256
8229ee7979aa9015b7dbe3a0c2f5fc019e89e25cf8264a8b9e6d1d9b427cd7a8

SHA512
78b207ba64ee3b6abdf354df486568814dcd599e013a5bdc1d607477c0da52bdf10a9d352d3c33c8b7c0cae6cd929d4dc1bbde675e0206fdea9bd334988819ed

Download Submit
memory/3840-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3840-903-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download