5e8a415aa6fd51b42dbb073559b64d213c223dd080e06efffa8779a2311b2b78

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/09/2024, 01:01

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General

Target

fb8e850a1e520c79c12e30ab183f1870N.exe
Size

129KB
MD5

fb8e850a1e520c79c12e30ab183f1870
SHA1

688b600d6f8da4a85a28ab29ad035b36a49291fc
SHA256

5e8a415aa6fd51b42dbb073559b64d213c223dd080e06efffa8779a2311b2b78
SHA512

5200eb4fc9e02c47e4f496a6fb786527e6cbb739f318fea808d42fb6a7a1795b5a1e755f17ce90634b70f8ade8843d3255e9d848af4f11f36408a46c510a7f59
SSDEEP

1536:V7Zf/FAxTWoJJZENTBWv36DidAz9gmHXwDNn5e24sPP4FmIFOTpWqhVAqKVxmq:fny1tEevW4ABKeCPwFmnpWqhVAqKVxb

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4367) 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/1032-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023416-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/1032-852-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationProvider.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\pl.pak.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Trial-pl.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\CT_ROOTS.XML.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-synch-l1-2-0.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.zh-tw.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\IpsMigrationPlugin.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Buffers.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\UIAutomationClient.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ucrtbase.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Red Orange.xml.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\en-US\msinfo32.exe.mui.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Xaml.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_MAK_AE-ppd.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Grace-ul-oob.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\WindowsFormsIntegration.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationTypes.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Grace-ul-oob.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTest-ul-oob.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_OEM_Perp-ppd.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.Compression.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\UIAutomationProvider.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Configuration.ConfigurationManager.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\giflib.md.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Trial-ppd.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-pl.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTest-ppd.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Excel.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshrv.xml.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Transactions.Local.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.MemoryMappedFiles.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Controls.Ribbon.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\PresentationUI.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\da.pak.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-ul-oob.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Common Files\System\msadc\msdaremr.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.Xml.Linq.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\MICROSOFT.DATA.RECOMMENDATION.CLIENT.CORE.DLL.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\gstreamer-lite.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.SqlServer.Types.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\APASixthEditionOfficeOnline.xsl.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\InitializeOpen.easmx.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-synch-l1-1-0.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\jni_md.h.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\bcel.md.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Trial-ppd.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-ul-oob.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\WindowsFormsIntegration.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationUI.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationClient.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Retail-ul-oob.xrm-ms.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.el-gr.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-debug-l1-1-0.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Pipes.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ObjectModel.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\UIAutomationProvider.resources.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\XLINTL32.DLL.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Common Files\System\it-IT\wab32res.dll.mui.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.Win32.Primitives.dll.tmp	fb8e850a1e520c79c12e30ab183f1870N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Green.xml.tmp	fb8e850a1e520c79c12e30ab183f1870N.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	fb8e850a1e520c79c12e30ab183f1870N.exe

C:\Users\Admin\AppData\Local\Temp\fb8e850a1e520c79c12e30ab183f1870N.exe
"C:\Users\Admin\AppData\Local\Temp\fb8e850a1e520c79c12e30ab183f1870N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1032

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-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

Filesize
130KB

MD5
7d86ab1e706edda5f612ccf5215db767

SHA1
e13dc86e5dc63f18d1640570ffd25901a87723db

SHA256
fb0d30a5266a5fb41c6923b3655e7a2cd6e315a981fec438c1f6a4a53e2173ec

SHA512
c1f1f6251659eddf4394313d4944cf768a155e7dfa3d1253b4b5555c646dd124bf7114eac02e8646f7166de0459e0f203e185cccb4de8344f7732d3910eb7f7c

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

Filesize
228KB

MD5
388a25676b610f7ffb59063dce608329

SHA1
307144aaed74b373fbbb645bf52b369d0c7eb215

SHA256
0a6febbec6ce31b7f378343d8c3573f61a7982bf25ce8f41c50642b75ddd5b03

SHA512
d8b88dd251ec0957f22c42378e8ec740b5e1fb3a609058a8b18e5d9823c6fe2bd6900cd292db7ea9f9551b7e851a10a8c7bdef3cc265eecf40620e75bd3321f8

Download Submit
memory/1032-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1032-852-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download