81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 21:25

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General

Target

81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
Size

210KB
MD5

536a1aa0e02e95af1701f6758a955a27
SHA1

3e83738829fdc3e284ecbe81a05f2797b5d65e6d
SHA256

81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80
SHA512

bdaf2e75e8427220fb68a1c549c5239a396f7393e78fc669e55fec24d00bc5f062763a6b2dfb606bc65a1cfdd2b8467989bab8aa7dd971614e0599722a7388a0
SSDEEP

3072:fny1tEyyj2yAeCgjJQWHIjN3tj6qnv0b2UrXkbvLiPP0:KbEyyj2yAIJbIjNDv0bNXkbvLiP8

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (3940) 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/4244-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000d000000023b6d-2.dat	upx
behavioral2/files/0x00140000000228f9-6.dat	upx
behavioral2/memory/4244-650-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\kk.txt.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-heap-l1-1-0.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-ppd.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\7-Zip\Lang\hu.txt.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.Parallel.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Grace-ppd.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Grace-ppd.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Retail-ul-phn.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msadcer.dll.mui.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Contracts.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.VisualBasic.Core.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.WindowsDesktop.App.runtimeconfig.json.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\WindowsBase.resources.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\joni.md.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ppd.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription2-ul-oob.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.EventLog.Messages.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationTypes.resources.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework-SystemCore.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jre-1.8\bin\w2k_lsa_auth.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-006E-0409-1000-0000000FF1CE.xml.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Retail-ul-oob.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-ul-phn.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\7-Zip\Lang\ps.txt.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\LogoCanary.png.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_KMS_Automation-ppd.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\7-Zip\Lang\ro.txt.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.TraceSource.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Linq.Parallel.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationClient.resources.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsita.xml.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\coreclr.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Paper.xml.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_KMS_Client-ul-oob.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\da-DK\tipresx.dll.mui.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\WindowsBase.resources.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\PresentationFramework.resources.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-math-l1-1-0.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Trial-ul-oob.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-ppd.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019MSDNR_Retail-ppd.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\bn.pak.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XPath.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\DirectWriteForwarder.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\System.Xaml.resources.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTrial-ppd.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Grace-ppd.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.OpenSsl.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\System.Windows.Forms.Design.resources.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-process-l1-1-0.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\gstreamer-lite.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\7-Zip\Lang\eo.txt.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-synch-l1-2-0.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jre-1.8\lib\plugin.jar.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest2-ul-oob.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Retail-ul-oob.xrm-ms.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\7-Zip\Lang\gu.txt.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Mail.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management\management.properties.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jre-1.8\bin\jp2ssv.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationClientSideProviders.resources.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-processthreads-l1-1-0.dll.tmp	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.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	81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe

C:\Users\Admin\AppData\Local\Temp\81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe
"C:\Users\Admin\AppData\Local\Temp\81e13f2a1945db30b65bbe904a75f3652009d8fb1d20309dd48333c710308a80.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4244

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-1-5-21-1045960512-3948844814-3059691613-1000\desktop.ini.tmp

Filesize
210KB

MD5
e9f599503e3f664359d45e5ea1ddcf12

SHA1
85f14101b4db741b29c6269569fa80bbd611d42c

SHA256
fc092174a483e02631ab0e4233d2fc662ad39f329444b0538c10e8068d7ea49b

SHA512
c2e3feb452351f3c5f98d99fde5ac083915a40d6df02053f810e01b0f24c9196c81cdd755d25969b08cf54efd561b65f36705a7e1795028053debdede7cd3736

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

Filesize
309KB

MD5
5387373376b9a7a04ece3c3828dee635

SHA1
55e5e09a63b41c82e01d06e9a005240f4d505e8b

SHA256
5b6e1c7dd22c7c2d8d1f7969eaa2f3980508f7acb30e2a5880caae2d0521b8c4

SHA512
fdfdeccf29b00d4952109afb5e9faf92659dd94fe0b8333c7c75a2051e7777792cefc202641734f55a002ffe0bfe3e79fdc86afe62ac6eba10a2fb5896cf6c3a

Download Submit
memory/4244-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4244-650-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download