d4651e3dd4df112e0bfec1856166e104d2641da5f579329b061c7fc72c40f361

Analysis

max time kernel
120s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 07:44

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General

Target

c93d762aaf913e7d35020d6c70321af0N.exe
Size

54KB
MD5

c93d762aaf913e7d35020d6c70321af0
SHA1

7bcaaa0db30815ab825a7519e55a2f009cf2ba0e
SHA256

d4651e3dd4df112e0bfec1856166e104d2641da5f579329b061c7fc72c40f361
SHA512

3ce0584eef2d9e41e7c5bae0a0d3efe7f22fe2ca873a2510af76126935eb3a7369a07f8ef4e944d36e62fb475b8ef4c2d2c91054dcb1b98ec01161ae6add89f4
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATNy2/mepYXwILQ7ZVnEbisFhiXFhar7:CTW7JJZENTNyavf73tQqarjrL

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4654) 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/4312-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233f5-2.dat	upx
behavioral2/files/0x0014000000022912-6.dat	upx
behavioral2/memory/4312-901-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial2-ul-oob.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-black_scale-80.png.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.en-us.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fi-FI\tipresx.dll.mui.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Common Files\microsoft shared\VGX\VGX.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\netstandard.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_KMS_Client-ul-oob.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\wpfgfx_cor3.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Windows.Forms.Design.resources.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\EXCELPLUGINCORE.DLL.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hi-in.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ko-KR\tipresx.dll.mui.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Process.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\ca\msipc.dll.mui.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\WidevineCdm\LICENSE.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-datetime-l1-1-0.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\7-Zip\Lang\hr.txt.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Formatters.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\ReachFramework.resources.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\de.pak.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-pl.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\ja-JP\oledb32r.dll.mui.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-utility-l1-1-0.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Grace-ul-oob.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH_COL.HXC.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Controls.Ribbon.resources.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\sl\msipc.dll.mui.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.Design.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\pkeyconfig-office-client15.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mip_telemetry.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msdaps.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_OEM_Perp-ppd.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Aspect.xml.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ppd.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TipRes.dll.mui.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\mscordaccore_amd64_amd64_6.0.2724.6912.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationClient.resources.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\ReachFramework.resources.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr\default.jfc.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.TypeConverter.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\WindowsBase.resources.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ppd.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.PPT.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-errorhandling-l1-1-0.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\System.Windows.Controls.Ribbon.resources.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial5-pl.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Retail-ul-oob.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientARMRefer2019_eula.txt.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Office 2007 - 2010.eftx.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Retail-ul-oob.xrm-ms.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Spatial.NetFX35.V7.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-white_scale-140.png.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Excel.EditorRibbon.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.scale-140.png.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Extensions.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Timer.dll.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jvm.hprof.txt.tmp	c93d762aaf913e7d35020d6c70321af0N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\orb.idl.tmp	c93d762aaf913e7d35020d6c70321af0N.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	c93d762aaf913e7d35020d6c70321af0N.exe

C:\Users\Admin\AppData\Local\Temp\c93d762aaf913e7d35020d6c70321af0N.exe
"C:\Users\Admin\AppData\Local\Temp\c93d762aaf913e7d35020d6c70321af0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4312

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-1-5-21-786284298-625481688-3210388970-1000\desktop.ini.tmp

Filesize
54KB

MD5
ba5c4c05470d68502895d89f13af65db

SHA1
f7f0591526ca358fa934ec9524cfb3e31e2ce45a

SHA256
a52fe8cfa472596198b5d66ea0fdd4baa2915af6420358de3b559cdbd5eab9fc

SHA512
ac1b1d5697d10b8a533f858ed188509118b402e165cff56160c7d59619d9ca45bf126d9009b74b66477c8bde8a7bd507f41619ad275d2215d71db2f2627f8209

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

Filesize
153KB

MD5
d0add57aa5d7e060499c6c0a8b885253

SHA1
9ac0fba11bcf43a2bc1ed84c33e75ca2d1bdc345

SHA256
185bd902eae291169a035b3b8d967e57012cd51ace8e029a138ee0a96663b8e8

SHA512
941eb586fa60edfcac83b8744209ef8d5f4ac763a7948b4c036e09f70197c49582d4e3c520171f988a643661553407b1b1ba6026bf94bc707d8555587e004688

Download Submit
memory/4312-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4312-901-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download