eb57b7c75d8cd07d0cff9a8ac9e41877869b6b26fa2ee7b498c186f2ecc4867d

Analysis

max time kernel
120s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16/08/2024, 23:23

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General

Target

f03ad07e38b3cb3a7d141f08fc3832d0N.exe
Size

42KB
MD5

f03ad07e38b3cb3a7d141f08fc3832d0
SHA1

05d45f7b711ed283ec0e4bce3d2416c1f9aa1e16
SHA256

eb57b7c75d8cd07d0cff9a8ac9e41877869b6b26fa2ee7b498c186f2ecc4867d
SHA512

c3061623ac14bbd7528eb3237de524c71af067b039e9815b64d235e23c8bfc8ec7c8880054f14eb94deba91828ce01a07aa0ca0c483c16ebd99eea4d3a6d19b5
SSDEEP

384:FBt7Br5xjL2Kd5AsAoh6n5eaOlIBXDaU7CPKK0TIh6SjeYDTcYDTkZX:V7Blpf/FAK65euBT37CPKK0SjA

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4679) 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/1740-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233fb-2.dat	upx
behavioral2/files/0x000400000002291b-6.dat	upx
behavioral2/memory/1740-998-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Arial Black-Arial.xml.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\ea-sym.xml.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-interlocked-l1-1-0.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management\snmp.acl.template.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-ul-oob.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\id\msipc.dll.mui.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msxactps.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\dynalink.md.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00C1-0409-1000-0000000FF1CE.xml.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymxl.ttf.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsoundds.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_ja.properties.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_Subscription-ppd.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_OEM_Perp-pl.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-ul-oob.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Subscription-ppd.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-pl.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Formats.Asn1.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Input.Manipulations.resources.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\kinit.exe.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-utility-l1-1-0.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\PresentationFramework.resources.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfxmedia.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp3-pl.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\AccessRuntime2019_eula.txt.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\tracedefinition130.xml.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogo.contrast-white_scale-100.png.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-console-l1-2-0.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.ThreadPool.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.excelmui.msi.16.en-us.xml.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationTypes.resources.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Grace-ul-oob.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-pl.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\bci.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTest-ppd.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ja-jp.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\ReachFramework.resources.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\WindowsFormsIntegration.resources.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\clretwrc.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationCore.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\PresentationFramework.resources.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Trial-pl.xrm-ms.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\sv\msipc.dll.mui.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\7-Zip\7-zip.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipskor.xml.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\oledbjvs.inc.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Timer.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationUI.resources.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\gstreamer-lite.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaBrightDemiBold.ttf.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Yellow.xml.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msaddsr.dll.mui.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.EventBasedAsync.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Web.HttpUtility.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.onenotemui.msi.16.en-us.xml.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Redshift\lib\sbicuuc53_64.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Data.Recommendation.Client.Picasso.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\fr-FR\msdasqlr.dll.mui.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Threading.AccessControl.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Storage.XmlSerializers.dll.tmp	f03ad07e38b3cb3a7d141f08fc3832d0N.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	f03ad07e38b3cb3a7d141f08fc3832d0N.exe

C:\Users\Admin\AppData\Local\Temp\f03ad07e38b3cb3a7d141f08fc3832d0N.exe
"C:\Users\Admin\AppData\Local\Temp\f03ad07e38b3cb3a7d141f08fc3832d0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1740

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-1-5-21-1302416131-1437503476-2806442725-1000\desktop.ini.tmp

Filesize
42KB

MD5
22294f57bf8a0ca2b9b4af75fc77f021

SHA1
04a5bf315a99c65572d25e5526d1719d3832f77d

SHA256
b358288ade01493f03711e66d45d4ea29addc8bd3863107996255e4d2e46525f

SHA512
01d98aede2b68c97ad14d9682c4963d3842fb7fcf2a4c8f0c19f5e83314d7f2ea6e8925bab88a4ef75b77eab1289f0481beef66e5289213d90c9508698311403

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

Filesize
141KB

MD5
b8ced8fc3943a32e63bd5e0260e0aa5a

SHA1
779b2877248737ab2dcc2cabd3abf2ad0f8ecd57

SHA256
8f1c7116c574a802695ea3a645c1c86fe573028a357ea2ae8d6b3679f10ef067

SHA512
e557c791d4e1eee619773414daaf10486741c915c44daea7bc65646c6df0e7cfe3fc6849b4ef7bc78a6cf3bea4696eb038b7fa71a9a256f38c394d58314f461b

Download Submit
memory/1740-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1740-998-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download