d0402cb26e1a4e4c67578681c28639a5fc37f2485838d7600f1d6dfaa8bc7bf0

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, 21:57

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General

Target

1fb58a80028c62a6dc9b3359e1b02850N.exe
Size

30KB
MD5

1fb58a80028c62a6dc9b3359e1b02850
SHA1

44e3808573f6f821bd3fe0d4fe0e9ecaa09a339b
SHA256

d0402cb26e1a4e4c67578681c28639a5fc37f2485838d7600f1d6dfaa8bc7bf0
SHA512

49c06a480c874af8cbb2ab81ccd322c1147465668df8de61b22494d29f48602c8329eb6a42fb516041185091dc95c04e9b1e0b011a95a67fc4e1755ead183930
SSDEEP

768:kBT37CPKK1EXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rcu90TKe+0TKeHhli3:CTWpji3

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4703) 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/2916-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233ef-2.dat	upx
behavioral2/files/0x000400000002291b-6.dat	upx
behavioral2/memory/2916-1029-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\jre\bin\dtplugin\deployJava1.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\resource.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\relaxngdatatype.md.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Grace-ul-oob.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknumpad\osknumpadbase.xml.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial-ul-oob.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\FrequentOfficeUpdateSchedule.xml.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\gstreamer-lite.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ul-oob.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription3-ppd.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_MAK_AE-ppd.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp-ppd.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial2-ppd.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Ping.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.Specialized.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-pl.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Retail-pl.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSSRINTL.DLL.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Resources\1033\PowerPivotExcelClientAddIn.rll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Configuration.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.MemoryMappedFiles.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Microsoft.VisualBasic.Forms.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javafx_iio.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Arial Black-Arial.xml.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription2-pl.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-process-l1-1-0.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-ul-oob.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Common.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\ecc.md.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-80.png.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_K_COL.HXK.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp-ul-oob.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_KMS_Automation-ppd.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\msvcp140.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ObjectModel.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jre-1.8\bin\zip.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jre-1.8\README.txt.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-ul-oob.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial2-pl.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Principal.Windows.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msdaremr.dll.mui.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.VisualStudio.Tools.Applications.Runtime.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\sqloledb.rll.mui.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\PresentationFramework.resources.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr.jar.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\icu_web.md.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\webkit.md.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-ppd.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_MAK_AE-ppd.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Printing.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_Subscription-ul-oob.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sk.pak.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteFreeR_Bypass-ppd.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ul-phn.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-pl.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Retail-ul-phn.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\WindowsBase.resources.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Common Files\System\Ole DB\oledb32r.dll.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-pl.xrm-ms.tmp	1fb58a80028c62a6dc9b3359e1b02850N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\InkObj.dll.mui.tmp	1fb58a80028c62a6dc9b3359e1b02850N.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	1fb58a80028c62a6dc9b3359e1b02850N.exe

C:\Users\Admin\AppData\Local\Temp\1fb58a80028c62a6dc9b3359e1b02850N.exe
"C:\Users\Admin\AppData\Local\Temp\1fb58a80028c62a6dc9b3359e1b02850N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2916

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
30KB

MD5
885a432ed9bfef9bdcbf59afa54b83a9

SHA1
93ce705dec3626506ac40e4a4e20a78fbd4d0564

SHA256
8f121de22ae32d5cc6e451705406e8d016cfa1db7390c272471e9df770996783

SHA512
cddc40dc0068249b2af5a31780b1d23ae48e7683b8ec3434e0bbf2e53b5967777cd2050000a65ddd3668583da7de6626d64d3b03457d3fa0ab5907fa92f6cc94

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

Filesize
129KB

MD5
e955bd329ed13805c9e7ade7fc0bbe15

SHA1
5b18503590f02eeb8ba65a9605a61ba2b412f376

SHA256
cc7749fd135a31ed98272b5854a8f63aa005dad0b7364c273e5d0fb05be196c9

SHA512
c0a6d32cd74605c49e026c685fda99bd4f6a5bc1bf65dc65e8313c7c5ccaeabe7040b6402c24b093e83b7efcdfba00500cab1ff5ed586b15b367feed9783e141

Download Submit
memory/2916-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2916-1029-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download