72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524

Analysis

max time kernel
150s
max time network
93s
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, 23:40

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General

Target

72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
Size

59KB
MD5

cf540467c9526467b093b0fff4e37c13
SHA1

82381c6e7636e4e91e82b367dbc620195c5b46cb
SHA256

72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524
SHA512

cac89e07c286fe873a2856b65eb18f3bf74077ef1f6d9b1d9de395d749d874142e0761ab84d61c670eb8e3559984eab7171a8d8f0241a6e18e77c5b29392b378
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJcbQbf1Oti1JGBQOOiQJhATNydWK9WKF9ADJH:V7Zf/FAxTWoJJZENTNyoKIKMF

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5033) 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/3848-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023401-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/3848-900-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Http.Json.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\pt-BR.pak.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\es\msipc.dll.mui.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\asm.md.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Java\jre-1.8\lib\javafx.properties.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\7-Zip\Lang\ps.txt.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationProvider.resources.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jli.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Forms.Primitives.resources.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Subscription-ul-oob.xrm-ms.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\MicrosoftDataStreamerforExcel.dll.manifest.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Data.DataSetExtensions.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\UIAutomationClient.resources.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WINWORD_COL.HXT.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\VISUALIZATIONENGINE.DLL.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\7-Zip\Lang\nb.txt.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\7-Zip\Lang\ug.txt.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Common Files\System\uk-UA\wab32res.dll.mui.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\Microsoft.VisualBasic.Forms.resources.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\classlist.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\trusted.libraries.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Java\jdk-1.8\lib\deployment.config.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Xml.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.DriveInfo.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\fr.pak.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription3-ul-oob.xrm-ms.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp-ppd.xrm-ms.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial-ul-oob.xrm-ms.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\DIFF_MATCH_PATCH_WIN32.DLL.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\nl-NL\tipresx.dll.mui.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\UIAutomationClient.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\javafx_iio.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00A1-0000-1000-0000000FF1CE.xml.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OUTLFLTR.DLL.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_terms_dict.txt.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-100.png.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\.version.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.PPT.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\7-Zip\Lang\lv.txt.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr.jar.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_K_COL.HXK.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\msgr8fr.dub.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Extensions.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Windows.Forms.resources.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\af.pak.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\as90.xsl.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\mshwLatin.dll.mui.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\sRGB.pf.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_OEM_Perp-ul-phn.xrm-ms.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Overlapped.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.scale-100.png.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.AccessControl.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.InteropServices.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\WindowsFormsIntegration.resources.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri Light-Constantia.xml.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_MAK_AE-pl.xrm-ms.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.vi-vn.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Tracing.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Primitives.dll.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_MAK_AE-ul-oob.xrm-ms.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_ghost_profile.png.tmp	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.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	72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe

C:\Users\Admin\AppData\Local\Temp\72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe
"C:\Users\Admin\AppData\Local\Temp\72981fac4ad7af8fc209e71bb6704cf59e83cc9d7f68be258217308b7dabc524.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3848

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
59KB

MD5
f6d2f37c89c7e9e383396f4de00205ff

SHA1
b1fc1191ae2b3f0bae278036423fc36eb7413cbc

SHA256
7f30d68cfaa944bc5409131a70d2e0284252ec1ae814786556b5146770879506

SHA512
6ed9b12a29c1a5c5ee632ce0ebf59c013190f9ee4618c5987bc30f194652ddd76dfe6819679164866e7b72b4b92f1aafa022b5effbc21e59d3aa4004f5b55609

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

Filesize
158KB

MD5
0bd215592c430ae8629991761d8c51b2

SHA1
c9627c163b3c3e3a6f072b28724d8411fc3d03c3

SHA256
b705ee9d5a87e11ef2443e188a4453c0aff6ac8310251f6d7ed11925259d241a

SHA512
3bbcbb02969dcf83a0e08f47bbccbe577c0e61de58b1e6a1b80a7782531846eb3abfdbccfe72f562f9e744ab8417dc93229c6a18b4e2fd86a719061ec79b2278

Download Submit
memory/3848-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3848-900-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download