b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2

Analysis

max time kernel
150s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/08/2024, 02:13

Sharing

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General

Target

b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
Size

116KB
MD5

1226502f9f0d4d1f77cc90e59a8ba0f5
SHA1

bf3bb61caff7c745f595ceb8e3fe520eb01de7a5
SHA256

b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2
SHA512

6915e01822725a76f2b890dbfbedc89970931052dfedac60e0d3e132f382d120926d01a9ca74dcedc872ef082646b991c210635e20cf45265ad39d2440e573e1
SSDEEP

1536:V7Zf/FAxTWoJJZENTNyl2Sm0mcxTcCF2wMDKyyvog1vopDR/Kr2ur/SOX6kiF7+Q:fny1tE42meXJ

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4942) 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/2768-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002339d-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/2768-1782-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.de-de.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.Queryable.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\ReachFramework.resources.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jre-1.8\bin\sspi_bridge.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientARMRefer2019_eula.txt.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH_F_COL.HXK.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jre-1.8\Welcome.html.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-conio-l1-1-0.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest1-ul-oob.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL109.XML.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.da-dk.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msdaremr.dll.mui.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-synch-l1-1-0.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Google\Chrome\Application\chrome.exe.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Retail-ppd.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\pkeyconfig-office.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Debug.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.HttpListener.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javap.exe.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Trial-ul-oob.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jdk-1.8\bin\keytool.exe.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelCtxUICellLayoutModel.bin.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\msgrammar8.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\7-Zip\Lang\ku.txt.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\D3DCompiler_47_cor3.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l1-1-0.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Retail-pl.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRINTL32.DLL.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Dallas.OAuthClient.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Luna.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\jpeg_fx.md.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\react-native-win32.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Forms.Design.resources.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.resources.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\dt_socket.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ul-oob.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_MAK_AE-ul-oob.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OCSCLIENTWIN32.DLL.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\powerpnt.exe.manifest.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Data.Recommendation.Client.Picasso.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\ReachFramework.resources.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Resources.Extensions.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-locale-l1-1-0.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-ul-oob.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-ul-oob.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Grace-ppd.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Data.DataSetExtensions.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Csp.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemCore.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libffi.md.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OneNote.OneNote.x-none.msi.16.x-none.xml.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Grace-ul-oob.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.ReportingServices.AdHoc.Excel.Client.Entry.Interfaces.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Mail.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\UIAutomationTypes.resources.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\ReachFramework.resources.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.Primitives.resources.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\splash_11-lic.gif.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\meta-index.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp2-ul-phn.xrm-ms.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Console.dll.tmp	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.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	b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe

C:\Users\Admin\AppData\Local\Temp\b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe
"C:\Users\Admin\AppData\Local\Temp\b78807e16bcc8fa1a1dce1278d4a9f7e6b2ef955dc647bd8da221374551af3d2.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2768

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
117KB

MD5
c6d436ed45b4f1c0e863fed8b4825779

SHA1
4fe70a100d7fbc2e53bb2e40d6205806ce18b2ac

SHA256
8404d0da05d610e347a19cf4a54bb4b6c9f80bc95fc0112962dd8252834fc0be

SHA512
9b7b175a79d9de1287f836f96507d5682a79b60e6b3a3549e8f8c9e2a1ac0ea59a0a868ebbd2fe87c47465f5707be8c39095ae7dd205a852277ac9847b87f185

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

Filesize
215KB

MD5
0006b22a5ed75724365752b575251c0d

SHA1
7350d24b097fc32fa4d4225cb95fada1b6675b19

SHA256
42ebf411254d40767078e4391be266e101e32bb04f468ee75ad7fcf6b9697f14

SHA512
677d905f4554e376592624333ffb628fd9e079a399d5c8a004b8342807f344d8554b47b2cf542c7df874533691c41066aabe9a8f328425f7462c61f5184f71b8

Download Submit
memory/2768-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2768-1782-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download