4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9

Analysis

max time kernel
120s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15/10/2024, 00:22

Sharing

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General

Target

4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
Size

28KB
MD5

73dbecbc97c616fda719d188dd11fb90
SHA1

68cd18a7c51f8f8064bb30a04a273cc71b3d0442
SHA256

4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9
SHA512

89ee826d34c50b5739fa3da7492864f0f5669bcafa3231d9f3de5e6eab78b61c12d72d57b2fecd3a8d9c70bdd7370ac03d70145a04fe81fbd9bedaab30b04e19
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9Y9tKGUKG1:CTW7JJ7TAEF

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4631) 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/3940-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000c000000023b35-2.dat	upx
behavioral2/files/0x00040000000228fe-6.dat	upx
behavioral2/memory/3940-672-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-handle-l1-1-0.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ssv.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTrial-pl.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ul-phn.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Tracing.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationUI.resources.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationClient.resources.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\Office16\OSPP.VBS.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\InkObj.dll.mui.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.NetworkInformation.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\WindowsBase.resources.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfr.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0000-1000-0000000FF1CE.xml.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Grace-ul-oob.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-ul-oob.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART8.BDR.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Primitives.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Grace-ppd.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH_COL.HXC.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Common.Wizard.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Design.resources.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Java\jre-1.8\bin\zip.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_PrepidBypass-ul-oob.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_COL.HXC.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\7-Zip\Lang\tk.txt.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationProvider.resources.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\splash.gif.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_KMS_Client_AE-ul.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-ppd.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Buffers.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Diagnostics.PerformanceCounter.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemCore.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javaw.exe.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_SubTrial-ul-oob.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Retail-ppd.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.MemoryMappedFiles.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebSockets.Client.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.Excel.Excel.x-none.msi.16.x-none.xml.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XmlSerializer.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ReachFramework.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp140.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest2-ul-oob.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTrial-pl.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\UIAutomationClient.resources.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\uk.pak.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\WindowsFormsIntegration.resources.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-locale-l1-1-0.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.powerpointmui.msi.16.en-us.xml.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrenUSlm.dat.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Handles.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-oob.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription5-pl.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\access-bridge-64.jar.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.common.16.xml.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.VisualBasic.Forms.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_f7\FA000000007.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ppd.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_PrepidBypass-ul-oob.xrm-ms.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Storage.XmlSerializers.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.Reporting.Common.dll.tmp	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.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	4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe

C:\Users\Admin\AppData\Local\Temp\4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe
"C:\Users\Admin\AppData\Local\Temp\4a65e326ee6015d40822d3cbe0a01003f758cc20d6a42e6831d73e82292a07a9N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3940

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-1-5-21-3350944739-639801879-157714471-1000\desktop.ini.tmp

Filesize
28KB

MD5
d6bbe6b1148578a72bbdfa8d166c3b3d

SHA1
a4b3e31b5b9bbfd9cf9687eac8c1c48120374e2e

SHA256
841a0e7035bcfe427422b02502c586910b41d4599d98ba54347d994d3900c28f

SHA512
d2ed95a1b5369f6a38fc5c19d1f0a028d70c338668b3987483750834363d4cd1a49120f580044063fd502d2b5b09abfae54ef44ed8f8334ac95d9d6e6b94e054

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

Filesize
127KB

MD5
ba7443bd435fa65176977d7896760a58

SHA1
9d5ba46d428b6a775270f40818dcfb8ec158be86

SHA256
4d811f208e0b40044330da672ed0c66a3fcc57accc12a04171cd6c272f57da31

SHA512
4fcbafc821bb8ba0b52cbff0051d911ce6250e7a1cfbeaa7f1475dda896b5461116b840e7bb3dcabca99127eb227f6d19855a6bb9e0a6ea3e70618840e74a2f2

Download Submit
memory/3940-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3940-672-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download