c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec

Analysis

max time kernel
150s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-08-2024 02:21

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General

Target

c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
Size

57KB
MD5

61475ca5ae69257dddb452bc5053a459
SHA1

e8e8a980f9c548ffa60fc6172cbbec511c8daeb1
SHA256

c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec
SHA512

c93bc7068487e7472cee35c4642ff48fc15283452203839156f13065cdd1947b6cfb57ef0e2dd3ca830d4795a9d48c7e27b7839bac647f1dbf30d1a1a55d9e40
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJcbQbf1Oti1JGBQOOiQJhATNydWK9WKvhmkX:V7Zf/FAxTWoJJZENTNyoKIKQkX

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5203) 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/4312-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000800000002346c-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/4312-1972-0x0000000000400000-0x000000000040B000-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\de\System.Windows.Forms.Design.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\xerces.md.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_OEM_Perp-ul-phn.xrm-ms.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\VVIEWER.DLL.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Extensions.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\Microsoft.VisualBasic.Forms.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Xaml.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\Classic.dotx.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\msgr8fr.dub.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Web.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\UIAutomationProvider.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sk.pak.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\basicelegant.dotx.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\rtscom.dll.mui.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\relaxngdatatype.md.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OneNote\SendToOneNote.gpd.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\[email protected]	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Java\jre-1.8\lib\tzmappings.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\7-Zip\Lang\ba.txt.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\7-Zip\Lang\sl.txt.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Common Files\microsoft shared\VC\msdia100.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemDrawing.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\DirectWriteForwarder.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH_F_COL.HXK.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\Sybase.xsl.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ONBttnIELinkedNotes.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\jpeg.md.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Java\jre-1.8\lib\jfxswt.jar.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-pl.xrm-ms.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\micaut.dll.mui.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\TipRes.dll.mui.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOLoader.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Retail-pl.xrm-ms.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OSF.DLL.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Xaml.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\Microsoft.VisualBasic.Forms.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\java.security.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\7-Zip\Lang\fy.txt.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.TypeConverter.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationClient.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Forms.Design.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Common AppData\Microsoft Help\MS.EXCEL.16.1033.hxn.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\Office16\SLERROR.XML.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.NETCore.App.deps.json.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.Primitives.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\Microsoft.VisualBasic.Forms.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Forms.Design.resources.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\InkDiv.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Common Files\System\ado\it-IT\msader15.dll.mui.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l2-1-0.dll.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\es-419.pak.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\tracedefinition130.xml.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019MSDNR_Retail-ul-phn.xrm-ms.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Fonts\private\BOOKOSBI.TTF.tmp	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.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	c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe

C:\Users\Admin\AppData\Local\Temp\c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe
"C:\Users\Admin\AppData\Local\Temp\c4b615647ae4973fbf1edc0dbfb1bd44e430f05cefeb0ac4ff0a5e957d8c12ec.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4312

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-1-5-21-656926755-4116854191-210765258-1000\desktop.ini.tmp

Filesize
57KB

MD5
e6ffcdf3a97c2232d2882bec8a88ac06

SHA1
66fd4bd7e4146893d56ba33e842bfcf84ae500db

SHA256
15ccd9138805e32638abc00efb369932a6b122d8075c5285b6c747130f0b830e

SHA512
08fb2222579e09df72e288f633f06d2d0dd3bb38b75e3a299770414c0aab49efc2ca0d53f09f6e5cd4ae5801a7a87cc0036a6dc6d11e479280b736cc5a1b3b9f

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

Filesize
156KB

MD5
9552357c032ec7a92c530fe3a8d8d1ad

SHA1
687db9f5afe53d0774ebf1f2f3138d4b2e2ace13

SHA256
508fbe5e5445e9c199b57ddfcdc1c805aaff443608e8f114fa981ea046721b72

SHA512
2c00f0b18426708ff0b3efbf944ef2391d1b5d166cd51620281b21d7845301a7d77cca2fbe66f1a89eb36ab4f7a02af8e3867033a749c7ce50541a9044f15728

Download Submit
memory/4312-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4312-1972-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download