4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b

Analysis

max time kernel
120s
max time network
99s
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 22:27

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General

Target

4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
Size

364KB
MD5

f2be745b64c74bee4f77624c418d2c03
SHA1

854e2a37f2071dbd4b10664c9d4e7c3e7c89886f
SHA256

4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b
SHA512

86add2f9b8d03efca9d49c972402e79bee80040a6a054b98cd886a17c20b87b1eede63406c5cc322978c189952645ea4164523babb11486a55f6cc4b442182e5
SSDEEP

6144:fEyyj2yAIJbIjNDv0bNXkbvLiPqEyyj2yAIJbIjNDv0bNXkbvLiPs:PyAUbIZGNXkbvL7yAUbIZGNXkbvL3

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (2826) 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/4248-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000c000000023b94-2.dat	upx
behavioral2/files/0x00040000000228fe-6.dat	upx
behavioral2/memory/4248-563-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msadcor.dll.mui.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\ReachFramework.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Input.Manipulations.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwritash.dat.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.RegularExpressions.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.Design.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\UIAutomationClientSideProviders.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management\jmxremote.password.template.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.AppContext.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.VisualBasic.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Primitives.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationClient.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\dom.md.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jre-1.8\bin\WindowsAccessBridge-64.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Writer.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XmlSerializer.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Forms.Primitives.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\sound.properties.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\bcel.md.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Cryptography.Xml.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\de-DE\msinfo32.exe.mui.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.Watcher.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Http.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationTypes.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.deps.json.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\bcel.md.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_rtl.xml.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msadcor.dll.mui.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.IsolatedStorage.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\PresentationUI.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\deploy.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jre-1.8\lib\calendars.properties.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\oskclearuibase.xml.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.Emit.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\WindowsBase.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\ReachFramework.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\GrantCopy.ini.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\System\msadc\en-US\msadcer.dll.mui.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Forms.Design.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Xaml.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\DirectWriteForwarder.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Windows.Controls.Ribbon.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\WindowsBase.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Controls.Ribbon.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\include\jvmticmlr.h.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\7-Zip\Lang\ps.txt.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-runtime-l1-1-0.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVIntegration.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XPath.XDocument.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Forms.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-handle-l1-1-0.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Input.Manipulations.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\joni.md.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\nb-NO\tipresx.dll.mui.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Common Files\System\ja-JP\wab32res.dll.mui.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.Compression.Native.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\PresentationCore.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationClientSideProviders.resources.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-root.xrm-ms.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Linq.Expressions.dll.tmp	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.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	4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe

C:\Users\Admin\AppData\Local\Temp\4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe
"C:\Users\Admin\AppData\Local\Temp\4cd28bce599f29d5dd195092e647a5675a838d5aa38bbbe3639f508a33e5144b.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4248

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-1-5-21-3350944739-639801879-157714471-1000\desktop.ini.tmp

Filesize
364KB

MD5
ab6420d88e8581cdf091306e04817d1e

SHA1
26e1f7c680c21fde2f4f6c71bee55e342f706f17

SHA256
b6329f6bb764c8a5374c80998af6225a12e4a13307ae6d1fce17ca2ddb907532

SHA512
075c76695f3c916cccfd2f1dcb3bd1931b709940d31056f202629273d98111a6e03291dd310ec9195433c5c9612b5bf0fdc45b22ed53570b244b317d8f0e35a1

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

Filesize
463KB

MD5
a7c8723e5a4d2c2f78eb30d71cfa757b

SHA1
172c33ffccce112e97ca15cd75608d2ef2f71ce6

SHA256
50d225f514d1afdcb7f1a24600c1b5403aba9658f9ab79c4c384d662f9e180b4

SHA512
bfa30ae70a935a5278686af028a89d638713fb259e9835f3c81b1c3b00253225c68935b5b680e37f4e692f52926acf222ecc6d46315757e4e5d115c06b9e2c19

Download Submit
memory/4248-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4248-563-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download