4a876793b3435ee0d38b88c73339dbc5b1e794ad9537666ab5827d0863383c70

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
01/09/2024, 13:51

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General

Target

803a180197b07d28e5882079ef866fa0N.exe
Size

43KB
MD5

803a180197b07d28e5882079ef866fa0
SHA1

b0d2f3828cc2853f06311bba112e9280ba00f6d9
SHA256

4a876793b3435ee0d38b88c73339dbc5b1e794ad9537666ab5827d0863383c70
SHA512

da03905ae799963c0eb7d4f1c33c4cbd04b1534ab6509389d4f296c734d7ffd3353355f96f4b1765761d7c7a32e8728daaa8bd62d67cd2f88a856c0643f8f21f
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcwBcCBcw/tio/tiqQT:CTW7JJ7TTQoQqQT

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4674) 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/2728-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000900000002340e-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/2728-986-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\sr-spl.txt.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Grace-ppd.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GR8GALRY.GRA.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-timezone-l1-1-0.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-ul-oob.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ul-oob.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Retail-ul-oob.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ul-phn.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-ul-phn.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\PresentationFramework.resources.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Security.Cryptography.Xml.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\thaidict.md.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\fxplugins.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\7-Zip\Lang\uk.txt.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\PresentationFramework.resources.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\UIAutomationClient.resources.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_Subscription-ul-oob.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\nl-NL\tipresx.dll.mui.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Yellow.xml.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ppd.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_KMS_Client-ppd.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\plugin2\vcruntime140_1.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_altgr.xml.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msdaremr.dll.mui.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ComponentModel.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\awt.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelCtxUIFormulaBarModel.bin.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Memory.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Controls.Ribbon.resources.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\cmm\LINEAR_RGB.pf.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management\management.properties.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.DriveInfo.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Trial-ul-oob.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-convert-l1-1-0.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\WindowsBase.resources.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libxslt.md.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_OEM_Perp-ul-phn.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Crashpad\metadata.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\awt.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-ul-phn.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Resources\1033\PowerPivotExcelClientAddIn.rll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial1-ul-oob.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\msdasqlr.dll.mui.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Data.Common.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Organic.thmx.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Tw Cen MT.xml.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\ReachFramework.resources.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\lcms.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-black_scale-80.png.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\sbicudt58_64.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\nl.pak.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-string-l1-1-0.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Common.Wizard.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Trial-pl.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Trial-pl.xrm-ms.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_expiration_terms_dict.txt.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\EntityDataHandler.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\7-Zip\Lang\tg.txt.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\WindowsFormsIntegration.resources.dll.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\es-419.pak.tmp	803a180197b07d28e5882079ef866fa0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\kinit.exe.tmp	803a180197b07d28e5882079ef866fa0N.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	803a180197b07d28e5882079ef866fa0N.exe

C:\Users\Admin\AppData\Local\Temp\803a180197b07d28e5882079ef866fa0N.exe
"C:\Users\Admin\AppData\Local\Temp\803a180197b07d28e5882079ef866fa0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2728

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
43KB

MD5
e06471adc568d14750c340d3ef5cbc83

SHA1
b7f763fd675675718372ca9bb6d911fcc3b7084a

SHA256
0c5052eddb013d34e81760795877eaca865d3304880e8b38a637f58e3d207ee8

SHA512
caff6a3cf7bf871b3bbbd7890299a990613303cbb2972aca357d990a018d492e3bbdf63a48d630fecf291c01fe4d49ee9829023dca025bc514e8262674c59f98

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

Filesize
142KB

MD5
2858261cc2b88c6d60800639dc7cce20

SHA1
1aa9090d19e2158aa2d147303cd1cda342c41e35

SHA256
076007de0d968fc4860dff194de1a11910259f220c1a4b189760266acff910cb

SHA512
61d48eb051a56379160fee878400e59f3895c957238300bac3fa2ac5e3ec9e7060d0ccee9da56132f28e6bde07381c321221011b4c394bbf2fc80a99d86c6c35

Download Submit
memory/2728-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2728-986-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download