d5be8fae0ddf1f7a5dad8daf8323a18190c0fe3f71faa6714f3d5945c4ebd9af

Analysis

max time kernel
119s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 07:30

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General

Target

2b8482afcbac08d3d6c52bf384d910b0N.exe
Size

59KB
MD5

2b8482afcbac08d3d6c52bf384d910b0
SHA1

f340118fafcba49387e0fcd80078e21d7ec1f317
SHA256

d5be8fae0ddf1f7a5dad8daf8323a18190c0fe3f71faa6714f3d5945c4ebd9af
SHA512

63c96cdf9ed1602e1f6b92d3de94feacc44430e0a6caaace79bc32d6fa599af6f8b38dc692800211cb5e0aac4cf0e4742fef9897f78c0f534433c8633d807337
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJcbQbf1Oti1JGBQOOiQJhATNyHF/MF/6m0mdQ:V7Zf/FAxTWoJJZENTNyl2Sm0mdnwN1/

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4650) 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/3256-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002340d-2.dat	upx
behavioral2/files/0x0014000000022912-6.dat	upx
behavioral2/memory/3256-866-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationClient.resources.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\UIAutomationClient.resources.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri.xml.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_FA000000050\FA000000050.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\el-GR\tipresx.dll.mui.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.Client.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.Linq.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad\auxbase.xml.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-namedpipe-l1-1-0.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Author2XML.XSL.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Subtle Solids.eftx.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Trial-ppd.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest2-ul-oob.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-ul-phn.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\shaded.dotx.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Drawing.Primitives.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationProvider.resources.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\Office16\OSPP.VBS.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Retail-ppd.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_Subscription-pl.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTrial-pl.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\PowerPivotExcelClientAddIn.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\en-US\sqlxmlx.rll.mui.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\ConvertJoin.cr2.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_fr.properties.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Xaml.resources.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\XLINTL32.DLL.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsjpn.xml.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Common Files\System\msadc\adcvbs.inc.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Compression.ZipFile.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\nio.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-pl.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.NETCore.App.deps.json.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.AccessControl.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ta.pak.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ul-oob.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Retail-pl.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\7-Zip\Lang\ru.txt.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.nb-no.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ppd.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Common Files\System\ado\msado15.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_MAK-ul-oob.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\rmid.exe.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial-ppd.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.PowerBI.AdomdDataExtension.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-conio-l1-1-0.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\netstandard.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\PresentationFramework.resources.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-ul-oob.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTrial-ppd.xrm-ms.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHSRN.DAT.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.scale-140.png.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\fr-FR\msinfo32.exe.mui.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Tracing.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\ReachFramework.resources.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.resources.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationProvider.resources.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\System.Windows.Input.Manipulations.resources.dll.tmp	2b8482afcbac08d3d6c52bf384d910b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\SmallLogoBeta.png.tmp	2b8482afcbac08d3d6c52bf384d910b0N.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	2b8482afcbac08d3d6c52bf384d910b0N.exe

C:\Users\Admin\AppData\Local\Temp\2b8482afcbac08d3d6c52bf384d910b0N.exe
"C:\Users\Admin\AppData\Local\Temp\2b8482afcbac08d3d6c52bf384d910b0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3256

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
60KB

MD5
1fcf6af40c345e4a2e43a5120115d4c5

SHA1
bc472ca87f58f0a13fd277c5c7191491e66a6d75

SHA256
c9781206b26a470828876febe1da7d7e370104a1f8357f3b6f58bc008e4fe40a

SHA512
cd6cfa0bc3968e71af564d97ba823af960d56553f50a6cccf119929cbc481b6bcb152827479b51a6c08be15106507496f9192ce9cfb1b0d97ad590a3c2a6f480

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

Filesize
158KB

MD5
615a0315629e852068e8d712e8978a0d

SHA1
c05f9b8c9e732def728442260d9ef88c6a0e96d8

SHA256
94369e9effc6540aaec258e7443ba57c199a9bac0a535500ca63c495797f475c

SHA512
3261ccfa6c14cd4762a66ac92fa18375b5fe923a74a000cbe6e74cdc33b000e6f71a2a0b7927e83fdb88e0571557d1141ee23d15182882f1bc6c3a4242af8f12

Download Submit
memory/3256-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3256-866-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download