ea315a1c9f74780943dcb8aba0977c016abdaa2d9037cb05a4eeee24d937d2fd

Analysis

max time kernel
119s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2024, 08:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

855938396ac12639f7f547c64a9fe0e0N.exe
Size

51KB
MD5

855938396ac12639f7f547c64a9fe0e0
SHA1

b9803c5aa065f3019ff7b6908ddb243ccec64021
SHA256

ea315a1c9f74780943dcb8aba0977c016abdaa2d9037cb05a4eeee24d937d2fd
SHA512

ee1c33b5e44775d3cac0e31182e10eec492fbf5989ca1e831854b892036c2678ea6bfa0015a2588ef7ad76b25322e1826964d977fd768cbccfb03407403ff6df
SSDEEP

768:kBT37CPKKIm0CAbLg++PJHJzIWD+dVdCYgck5sIZFlzc3/Sg2aDM9uA9DM9uAFzH:CTWn1++PJHJXA/OsIZfzc3/Q8zxF

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4649) 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/5092-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233fa-2.dat	upx
behavioral2/files/0x000c0000000220a6-6.dat	upx
behavioral2/memory/5092-1114-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp140.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Serialization.Json.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\WindowsFormsIntegration.resources.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019MSDNR_Retail-ul-phn.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription2-ul-oob.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-ul-phn.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\gl\msipc.dll.mui.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationTypes.resources.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\zh-CN.pak.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_LinkDrop32x32.gif.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Grace-ppd.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\7-Zip\7zFM.exe.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp-ul-phn.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Trial-pl.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONINTL.DLL.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ul-oob.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-white_scale-180.png.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\offreg.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-file-l2-1-0.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_KMS_Client-ppd.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Trial-pl.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-oob.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_MAK_AE-ul-oob.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Data.Recommendation.Common.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Numerics.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\PresentationCore.resources.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\he.pak.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-black_scale-180.png.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\hprof.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_KMS_Client-ppd.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-pl.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Grace-ul-oob.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Drawing.Primitives.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.AccessControl.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Encoding.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-console-l1-2-0.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial5-ul-oob.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_OEM_Perp-ppd.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-ppd.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONGuide.onepkg.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_SubTrial-ppd.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Serialization.Primitives.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaSansDemiBold.ttf.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\directshow.md.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\access-bridge-64.jar.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Tasks.Extensions.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XDocument.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Retail-pl.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-math-l1-1-0.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationProvider.resources.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\InputPersonalization.exe.mui.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.Native.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Internet Explorer\fr-FR\ieinstal.exe.mui.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\TrebuchetMs.xml.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Ping.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationCore.resources.dll.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_zh_CN.properties.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msoutilstat.etw.man.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp6-ul-phn.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_KMS_Client_AE-ul.xrm-ms.tmp	855938396ac12639f7f547c64a9fe0e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\zh-TW.pak.tmp	855938396ac12639f7f547c64a9fe0e0N.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	855938396ac12639f7f547c64a9fe0e0N.exe

C:\Users\Admin\AppData\Local\Temp\855938396ac12639f7f547c64a9fe0e0N.exe
"C:\Users\Admin\AppData\Local\Temp\855938396ac12639f7f547c64a9fe0e0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5092

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-1-5-21-523280732-2327480845-3730041215-1000\desktop.ini.tmp

Filesize
51KB

MD5
aaa11d461ea113a6ff0dfe2149d916db

SHA1
91c61cb2fa31ff5df5eecd6d3e3ba6af5fc4188f

SHA256
50c03a9cdea1315a64a670264e296d4387ba31e3ff5bc15ddd61dbf9dd9d9397

SHA512
a5cb2c81362503244d85f02e2391b93d5e6dce8388a2eaa648b0b329b43cf54de826dbc4b31406b1a2d17f512d9423ed73758ce85f92a6d6641fefddb2991c17

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

Filesize
150KB

MD5
6c1cf98b1fe427b21d0907c4b0248404

SHA1
2c2a5964ce3984ece473f78fe6758bb68e9b4349

SHA256
e71a7d5d667004a84c56e15bf8ec1b0a91784151a1dd35222ecd0621defa38b5

SHA512
8f8a38b7b8febe277bf7ab8e96212bcf1f7ef6b2e83c5c7b8bba047c3bd6834f19ada949a46202415c8f4789bb677aee2f08cbce40675b5e47baf0827e4c0455

Download Submit
memory/5092-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/5092-1114-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download