08865f24b60e042692443cdf1f1563d48d0c19cf27d2f643f440956643bba4ed

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2024 11:21

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General

Target

b967202a907e2c8ec0b49748f7dfb790N.exe
Size

32KB
MD5

b967202a907e2c8ec0b49748f7dfb790
SHA1

da538823cd5551692a3094af3ec1d56d48faa879
SHA256

08865f24b60e042692443cdf1f1563d48d0c19cf27d2f643f440956643bba4ed
SHA512

bc93339d8ede37b8536aa5b3626db5591f5498adc989b71356f30f4fd564a593303699b8fd7fbe218d0a6530d81167740a4b1350fd3d7c376176cf2c390211c7
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATBApwp2ZgZ7FATJGxHFATJGxs:CTW7JJZENTBAOUYo

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4647) 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/2688-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000235db-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/2688-902-0x0000000000400000-0x000000000040A000-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\zh-Hant\UIAutomationClientSideProviders.resources.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Windows.Controls.Ribbon.resources.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jvm.lib.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Resources.Writer.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Forms.Primitives.resources.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_KMS_Client-ppd.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial-ppd.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\7-Zip\Lang\co.txt.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ar-SA\tipresx.dll.mui.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\xalan.md.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\dnsns.jar.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\policy\limited\local_policy.jar.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_MAK-ul-phn.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_OEM_Perp-ul-phn.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework-SystemDrawing.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Intrinsics.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Windows.Forms.Primitives.resources.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_OEM_Perp-ul-oob.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.SPClient.Interfaces.DLL.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TabTip.exe.mui.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Common Files\System\msadc\msdaremr.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.TypeExtensions.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationClient.resources.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_MAK_AE-ul-phn.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-ul-phn.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Reader.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationProvider.resources.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Windows.Controls.Ribbon.resources.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-ppd.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.SapBwProvider.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.DiaSymReader.Native.amd64.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemCore.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Office.PowerPivot.ExcelAddIn.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\7-Zip\History.txt.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationProvider.resources.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Trial-ppd.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.scale-80.png.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l1-1-0.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Tracing.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsound.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Grace-ul-oob.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-ul-phn.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\cacerts.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-convert-l1-1-0.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsjpn.xml.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fontconfig.bfc.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jpeg.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Java\jre-1.8\bin\wsdetect.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\7-Zip\Lang\si.txt.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.Encoding.CodePages.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-ul.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Grace-ppd.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TelemetryDashboard.xltx.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-root.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Grace-ppd.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.TextWriterTraceListener.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.EventLog.Messages.dll.tmp	b967202a907e2c8ec0b49748f7dfb790N.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	b967202a907e2c8ec0b49748f7dfb790N.exe

C:\Users\Admin\AppData\Local\Temp\b967202a907e2c8ec0b49748f7dfb790N.exe
"C:\Users\Admin\AppData\Local\Temp\b967202a907e2c8ec0b49748f7dfb790N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2688

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1432,i,12470628711992022444,7767535593390851522,262144 --variations-seed-version --mojo-platform-channel-handle=4292 /prefetch:8
1⤵
PID:4832

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-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.tmp

Filesize
33KB

MD5
3ff7a7a63c20b0832cc9f76c05b6fbb8

SHA1
a8bcc0ef28f481dd9d86acc5859b319ab3897429

SHA256
4518641949150ff3e1401eee2be09bad4da820c975c96918c40fb890f919d964

SHA512
d4d40e867c46385081d6b1973c05fc450d49ecbed9d1e4eeac26b74b7f52bfc51c45b26d2b13729bcfdb293d24f6b9be004aca1f8375a4cd04bbec75eceaf2a5

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

Filesize
145KB

MD5
8cbdf3d68d13c8c464352b40580b0efe

SHA1
fb1229f6705f4c0bdba412765e1df04a0cd1d4c4

SHA256
c51fe26d030fa4651675efe26abd55c7205bd79adbb8edb1997458b052e94ba8

SHA512
16aad0a7785def3a21b6bc62fe7553a8e8973f4cfea6601a39f36de89b6a85900a39b40630c2f1fc0418fb3c3e81a0f8331c47f0f5863cb5dc69f51cd92383b3

Download Submit
memory/2688-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2688-902-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download