75ac50dea422e3eb59804b5322f2a83962eced0330577abf0d3e1a765b53e1fe

Analysis

max time kernel
120s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27-07-2024 09:37

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General

Target

b09bb3795701ed83d4b4e3c925d21cc0N.exe
Size

146KB
MD5

b09bb3795701ed83d4b4e3c925d21cc0
SHA1

bd81d8be11814bb676e520ac55a1fd4c59abd42a
SHA256

75ac50dea422e3eb59804b5322f2a83962eced0330577abf0d3e1a765b53e1fe
SHA512

ae90383a3e91ca07c155392985f39d869a25e79fd83df77630734133edf2a2d34c14e603f91c734c114236e23e0b1ec9584515ae1abc109ef6c54547f94b586c
SSDEEP

1536:V7Zf/FAxTWoJJZENTNyl2aP7kLfQOVvZQh2bAFq:fny1tE42PVw2EFq

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (1325) 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/2908-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00080000000234a4-2.dat	upx
behavioral2/files/0x0014000000022905-6.dat	upx
behavioral2/memory/2908-802-0x0000000000400000-0x000000000040B000-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.id-id.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\7-Zip\Lang\co.txt.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipscat.xml.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Encoding.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.Extensions.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\PresentationCore.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\WindowsBase.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\7-Zip\Lang\sq.txt.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOLoader.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\netstandard.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\WindowsBase.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-file-l2-1-0.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.VisualBasic.Core.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lv-lv.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.CompilerServices.Unsafe.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.Emit.Lightweight.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\oledbjvs.inc.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Web.HttpUtility.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Pipes.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\ReachFramework.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Forms.Design.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\PresentationUI.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.kk-kz.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ServiceModel.Web.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.IsolatedStorage.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\7-Zip\Lang\eu.txt.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.DriveInfo.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Windows.Forms.Primitives.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\7-Zip\Lang\uk.txt.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrcommonlm.dat.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\TabIpsps.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationUI.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.DiaSymReader.Native.amd64.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hr-hr.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\System\ado\fr-FR\msader15.dll.mui.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-math-l1-1-0.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscordbi.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\WindowsBase.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\oledb32r.dll.mui.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.MemoryMappedFiles.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Claims.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\7-Zip\descript.ion.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\InputPersonalization.exe.mui.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.NetworkInformation.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\zh-dayi.xml.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\lt-LT\tipresx.dll.mui.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ComponentModel.Annotations.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Windows.Input.Manipulations.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\el-GR\tipresx.dll.mui.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\InkObj.dll.mui.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-private-l1-1-0.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.AccessControl.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationClientSideProviders.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\7-Zip\Lang\mk.txt.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\PresentationCore.resources.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrusash.dat.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ru-RU\tipresx.dll.mui.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\rtscom.dll.mui.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-localization-l1-2-0.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.TextWriterTraceListener.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.DataContractSerialization.dll.tmp	b09bb3795701ed83d4b4e3c925d21cc0N.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	b09bb3795701ed83d4b4e3c925d21cc0N.exe

C:\Users\Admin\AppData\Local\Temp\b09bb3795701ed83d4b4e3c925d21cc0N.exe
"C:\Users\Admin\AppData\Local\Temp\b09bb3795701ed83d4b4e3c925d21cc0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2908

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-1-5-21-2636447293-1148739154-93880854-1000\desktop.ini.tmp

Filesize
146KB

MD5
af4b2119df307e4b978a498e511441d3

SHA1
5e2a886731e8b4655b5f4ba563148fb9adb3b1d1

SHA256
870cef5c1c5716795cb11a25f0abf36b935e7982a2222da985e3410953a2a9ad

SHA512
85158a1f8e519015434cc971b4c2ca94bb269af03be38d02ce7509c27fa909f14aa51736c37e1ae01207a3b3233bb387c976e999a0d903677d3076b684532b26

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

Filesize
245KB

MD5
53b684e2b9a6618bbf2c5010c8bfe3f3

SHA1
2ee6eb793614db5654d56b645a5ff9ffc1e9ce30

SHA256
337b6119d2f226e7c066e391241eff27d1d0c331b476bdf8aa52aaab7ded885c

SHA512
33264976ce23935173689bc92f47338f24f374cb5a47bc43824bf2ca95c1516a49ac84fa539b9102cfe364c452475b90fe24787c566263b286727e78a12bc332

Download Submit
memory/2908-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2908-802-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download