851b5af4dc8af34971a33c4a4c6df53cb9fad60e91977e542fbb1978473b704f

Analysis

max time kernel
120s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14-09-2024 11:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c06fa66d78772575e2deea6d48505850N.exe
Size

144KB
MD5

c06fa66d78772575e2deea6d48505850
SHA1

156622fe1b42d4da1250e156b8e0a45bf59bb987
SHA256

851b5af4dc8af34971a33c4a4c6df53cb9fad60e91977e542fbb1978473b704f
SHA512

bf1f353cbf9663375ef032c079958b4a5302a464afedb4a065b099ee0f8ccaeafb1ea8917ca9ba0347ee4be2ccd554bf3bf54170723c78539a41f49f2bd24490
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxY5dN74uTWn1++PJHJXA/OsIZfzc3/z:fnyiQSox5/QSox5Y

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4280) 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/1856-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00080000000233c9-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/1856-794-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr\default.jfc.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RIntLoc.en-us.16.msi.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\tracedefinition130.xml.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\InkObj.dll.mui.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\WindowsFormsIntegration.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_SubTest-ul-oob.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_Subscription-pl.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\hprof.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\Office16\SLERROR.XML.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\UIAutomationTypes.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\ReachFramework.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteFreeR_Bypass-ppd.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Retail-ul-phn.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTrial-pl.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationClient.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationTypes.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Trial-ul-oob.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\MsoAriaCApiWrapper.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\as80.xsl.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\blacklist.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_KMS_Client-ul.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Trial-ul-oob.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-pl.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.DriveInfo.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\PYCC.pf.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XPath.XDocument.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Forms.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_PrepidBypass-ul-oob.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ul-oob.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.he-il.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.ReaderWriter.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Forms.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_200_percent.pak.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Grace-ul-oob.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Trial-ul-oob.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ppd.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\TipTsf.dll.mui.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Common Files\System\Ole DB\oledb32.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Channels.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\zip.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_es.properties.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\trusted.libraries.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-ul-phn.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\7-Zip\Lang\is.txt.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.Primitives.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Retail-pl.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Document.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\UIAutomationClientSideProviders.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrlatinlm.dat.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationClient.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\de-DE\msinfo32.exe.mui.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationProvider.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Windows.Controls.Ribbon.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\7-Zip\Lang\lij.txt.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\7-Zip\Lang\sa.txt.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\7-Zip\Lang\es.txt.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Forms.Design.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\dnsns.jar.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\libxslt.md.tmp	c06fa66d78772575e2deea6d48505850N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_KMS_Client_AE-ul.xrm-ms.tmp	c06fa66d78772575e2deea6d48505850N.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	c06fa66d78772575e2deea6d48505850N.exe

C:\Users\Admin\AppData\Local\Temp\c06fa66d78772575e2deea6d48505850N.exe
"C:\Users\Admin\AppData\Local\Temp\c06fa66d78772575e2deea6d48505850N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1856

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

Loading Replay Monitor...

Downloads

C:\$Recycle.Bin\S-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
144KB

MD5
96108cf3f641d475fd4bb0940a330c7d

SHA1
93648dc1d4adfe6037d1959cf6882309c7a3c46d

SHA256
6aba809ae2836f0370e530f20f1d55b2df8f4108b83fe05f031a1eb02c6e38c1

SHA512
562895aab92c47cca949c145456471b1c9eb8d171b919b87bd321e8590cf9cbf48ce2a63efc0bb37cd65c27bf0ad8d2d793fe7404f7795e52a3342dd3a0ebbc7

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

Filesize
243KB

MD5
aa0598a12c70847d5c6504bc508ad267

SHA1
3c51d4d3ec54a52f70791b6de62716a6bab07404

SHA256
0ff56736d0ac319655d35b4e42114934a1c0d4d76f05a1976aaf4793e110eb01

SHA512
597188997be31183aa8d9b8aafdb0e0b4bd18a98133731671c0ab39973581b5e3b470d02d0b982f08e6b96175563620756a61f5a66c11859a77bf323827e68d0

Download Submit
memory/1856-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1856-794-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download