cc33f7fc1d29542d012f0ea37ad82c4d9229aad60ade9380b23142763af2b664

Analysis

max time kernel
120s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 22:16

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General

Target

2f6f759f9a272e51ec222420ff52e1d0N.exe
Size

99KB
MD5

2f6f759f9a272e51ec222420ff52e1d0
SHA1

55bca575823ce5c6cdbc9c9a008fe75e55189c57
SHA256

cc33f7fc1d29542d012f0ea37ad82c4d9229aad60ade9380b23142763af2b664
SHA512

b8425c18e600bcdf23c1c78df5a2f233097684444dc0743a1f3722c1c9f5a4eeb9ebc5a001fdbcbbf7541ca2be428c6a2e619494c50daca3ee87ac539811d93e
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8IZxJfes9r9CZcZT:fnyiQSo7ZxJdZCZcZT

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (2439) 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/4412-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233d9-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/4412-380-0x0000000000400000-0x000000000040B000-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\Microsoft.VisualBasic.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\Microsoft.VisualBasic.Forms.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\UIAutomationClientSideProviders.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\7-Zip\Lang\fr.txt.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\WindowsFormsIntegration.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\UIAutomationTypes.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationProvider.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\freebxml.md.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Console.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Contracts.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.Primitives.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\UIAutomationTypes.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\PresentationFramework.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Web.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Diagnostics.EventLog.Messages.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\wpfgfx_cor3.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\WindowsBase.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\7-Zip\Lang\ext.txt.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Formats.Asn1.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.IsolatedStorage.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Configuration.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\System.Windows.Forms.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-math-l1-1-0.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\splashscreen.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\tr.pak.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ObjectModel.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.deps.json.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\PresentationCore.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\WindowsBase.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\WindowsBase.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jp2native.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\he-IL\tipresx.dll.mui.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msxactps.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\WindowsBase.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\eventlog_provider.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javaw.exe.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Configuration.ConfigurationManager.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\ReachFramework.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\bg.pak.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TabTip.exe.mui.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Http.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Reader.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Extensions.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationTypes.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msdaremr.dll.mui.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Xml.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Microsoft.Win32.Registry.AccessControl.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\ssv.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\7-Zip\Lang\en.ttt.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\7-Zip\Lang\sw.txt.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Memory.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Forms.Design.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\msvcp140.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\giflib.md.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\fr-FR\oledb32r.dll.mui.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-interlocked-l1-1-0.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\WindowsBase.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Forms.resources.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jmap.exe.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_ca.xml.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\pt-PT\tipresx.dll.mui.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\santuario.md.tmp	2f6f759f9a272e51ec222420ff52e1d0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_d3d.dll.tmp	2f6f759f9a272e51ec222420ff52e1d0N.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	2f6f759f9a272e51ec222420ff52e1d0N.exe

C:\Users\Admin\AppData\Local\Temp\2f6f759f9a272e51ec222420ff52e1d0N.exe
"C:\Users\Admin\AppData\Local\Temp\2f6f759f9a272e51ec222420ff52e1d0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4412

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-1-5-21-945322488-2060912225-3527527000-1000\desktop.ini.tmp

Filesize
99KB

MD5
458ab8cb4e058f8b6c1d577c7df304d3

SHA1
cdcf2fc0a2308ef811bf49355cc11cea4bdeae26

SHA256
fa68183f55b1e59cbdb3506044337c33017bdfc287954018cdcf5f9b0af9733c

SHA512
7ba10ced4b3db778a84028cf24b77a724d25c3641e80ccf3a58a729cf1c95a9e545460a7ae16b457d83b80f50d2b16a1cca7a56430bfee4d44e52c4dd60f2879

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

Filesize
198KB

MD5
200f997b0a07406235bfe2315ba0e7ce

SHA1
05b1dbad8b29127452e339dcecd2eb79828710e6

SHA256
248380840535a89a9e35c85a5e971452b6dbbfe6b2e9f29c3e9e67c3d3bbd955

SHA512
3045c28b7f243e066488a4dfebb94719538817c94c4d382f73a669439a3edf80f677d9914b45569d136a8d7c50746a9863972ec0196328e75b3cea99ac171b8d

Download Submit
memory/4412-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4412-380-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download