56f4ce89f8859b87c80d92a6142ab0447a27f39482ab8a623bc2dfc41f483bb6

Analysis

max time kernel
120s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/09/2024, 21:44

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General

Target

e2b9b7ac4661025333411dd83974d1f0N.exe
Size

94KB
MD5

e2b9b7ac4661025333411dd83974d1f0
SHA1

ddf8c1d6f6b084d89662d31a395eb4b5e74c4aef
SHA256

56f4ce89f8859b87c80d92a6142ab0447a27f39482ab8a623bc2dfc41f483bb6
SHA512

2f77ea853e6319eeaafd6175d0c92eece29cd271d859b74113735bae507a00a8194f5467d4e553bcfada3b7c2e3418e929e125005f43b5673d74acb7ab9eedf6
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8asUsJOLKc/xJtLJtTGKNf8:fnyiQSohsUsUKCNf8

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4615) 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/3940-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00080000000234d1-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/3940-848-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Tasks.Dataflow.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\PresentationCore.resources.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\gu.pak.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\OFFICE.DLL.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\InstallerMainShell.tlb.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\7-Zip\Lang\ba.txt.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\System.Windows.Forms.Primitives.resources.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial2-pl.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-white_scale-140.png.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.DataIntegration.FuzzyMatching.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.exe.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsBase.resources.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\Microsoft.VisualBasic.Forms.resources.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaBrightRegular.ttf.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ul-oob.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Trial-ppd.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-process-l1-1-0.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-runtime-l1-1-0.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.TraceSource.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Internet Explorer\es-ES\iexplore.exe.mui.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_MAK_AE-ppd.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-ul-oob.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ul-phn.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\no\msipc.dll.mui.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTest-ppd.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\PresentationFramework.resources.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\System.Windows.Input.Manipulations.resources.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Red Violet.xml.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Red.xml.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail2-pl.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\relaxngdatatype.md.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Retail-pl.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_SubTrial-ul-oob.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\TabTip.exe.mui.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskmenu.xml.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework-SystemXml.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Java\jdk-1.8\COPYRIGHT.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\7-Zip\Lang\de.txt.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Forms.resources.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\libffi.md.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ul-phn.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-ul-phn.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ShapeCollector.exe.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Controls.Ribbon.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\UIAutomationClientSideProviders.resources.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\javaws.jar.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_OEM_Perp-ppd.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ppd.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRINTL32.DLL.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\7-Zip\Lang\pt-br.txt.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\concrt140.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\jaccess.jar.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_OEM_Perp-ul-phn.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-ul-phn.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.OpenSsl.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\PresentationUI.resources.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSOUC.HXS.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\McePerfCtr.man.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Luna.dll.tmp	e2b9b7ac4661025333411dd83974d1f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-ul-oob.xrm-ms.tmp	e2b9b7ac4661025333411dd83974d1f0N.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	e2b9b7ac4661025333411dd83974d1f0N.exe

C:\Users\Admin\AppData\Local\Temp\e2b9b7ac4661025333411dd83974d1f0N.exe
"C:\Users\Admin\AppData\Local\Temp\e2b9b7ac4661025333411dd83974d1f0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3940

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-1-5-21-4182098368-2521458979-3782681353-1000\desktop.ini.tmp

Filesize
94KB

MD5
e25ec889dd4916a5bf4a537c17b35c5f

SHA1
c1dfa065a179baa64ee23b6e050adcf8172d8a58

SHA256
1041a3d6b66619aa5c53b0eb85710e1b97d6720562d409fb4d858b40ef4eb9ea

SHA512
b25c29febfe88961c829ddecc0d26674fb18b55b472e1b07a2bc2fb50c2fad6b1b4b5c96dcaa627ba1de3774b78bd4a9d9213f48109b45a6b78a0ca82333a91f

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

Filesize
193KB

MD5
dec100eef69afbf267d7aea74285ab2d

SHA1
70c6c331b0222b3b57a80bd401b590730b1d2371

SHA256
31206d980a9dc216f823e57861ed9ee51da30162b68421ceeb9184b8ae389cad

SHA512
224e63f7b7fcc5c4d087c1fa6139fb11f7250685fc29b070faa17e2352a572001dbe1673a5c4769fea09c5b8a2769bd793b21baa0da2dbc453edf694d7678c90

Download Submit
memory/3940-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3940-848-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download