b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17/10/2024, 13:21

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General

Target

b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
Size

67KB
MD5

420e73253b010bbfd4a46517ced87100
SHA1

2739180d7a28dfa7c6c3fc4fcace42f31f6ff77e
SHA256

b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168
SHA512

42194901f336496cc402fce4a22b8945a70d061920a59d08995773753134f8d982051fa8c893cc64d2dc7a3e52eb0bf9871a69f04aed683403ee82f35a8edc6d
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcwBcCBcw/tio/tiJFEFuod6:V7Zf/FAxTWoJJ7TTQoQPyPhehyDbaDbr

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4773) 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/2692-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000a000000023c12-2.dat	upx
behavioral2/files/0x0014000000022905-6.dat	upx
behavioral2/memory/2692-660-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-ppd.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\en-US.pak.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Subtle Solids.eftx.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Internet Explorer\ja-JP\iexplore.exe.mui.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Java\jre-1.8\bin\t2k.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\DATATRANSFORMERWRAPPER.DLL.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\sqlxmlx.rll.mui.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Numerics.Vectors.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\xerces.md.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O17EnterpriseVL_Bypass30-ppd.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Web.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\ant-javafx.jar.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_Grace-ul-oob.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_MAK_AE-pl.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClient.man.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msadcer.dll.mui.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ComponentModel.Annotations.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_F_COL.HXK.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_WHATSNEW.XML.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Common Files\System\ja-JP\wab32res.dll.mui.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\msquic.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ul-oob.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\concrt140.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Principal.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Diagnostics.EventLog.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\gu.pak.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EntityPickerIntl.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\officeinventoryagentfallback.xml.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelInterProviderRanker.bin.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\WindowsFormsIntegration.resources.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.deps.json.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial2-ppd.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Retail-ul-oob.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\libxml2.md.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Grace-ppd.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Retail-pl.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-black_scale-140.png.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL012.XML.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\mshwLatin.dll.mui.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.InteropServices.RuntimeInformation.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-convert-l1-1-0.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_MAK_AE-ul-oob.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ORGCHART.CHM.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Common Files\System\Ole DB\oledbjvs.inc.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.Client.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\libffi.md.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcDemoR_BypassTrial365-ppd.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Retail-ul-phn.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Tracing.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\PresentationUI.resources.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-processthreads-l1-1-1.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-006E-0409-1000-0000000FF1CE.xml.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.ReportingServices.ReportDesign.Common.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\ReachFramework.resources.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\PresentationFramework.resources.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\PresentationUI.resources.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProDemoR_BypassTrial180-ppd.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial5-ul-oob.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-ul-oob.xrm-ms.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.NetworkInformation.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\UIAutomationProvider.resources.dll.tmp	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.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	b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe

C:\Users\Admin\AppData\Local\Temp\b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe
"C:\Users\Admin\AppData\Local\Temp\b4d21649d94346f6e02bd35bdd1acdfb36d233878700e4284e2daf0ccc95f168N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2692

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-1-5-21-2045521122-590294423-3465680274-1000\desktop.ini.tmp

Filesize
68KB

MD5
5be5f1e0215f580ba559064dd11e7532

SHA1
1ff98cc2ba076e7f61bafb214d1ff7ddad219fe3

SHA256
214089136b1805b4e04cecfd4566f6ee0dfdae8e2fc795bc585591ae31998b53

SHA512
39f92a94b47e633635b8ddad3d8d9e93370ce457e8b7e074e7fc15465855de63ccaecc37cceeeac09343526097ecf44a980b16a4ed7e97eb6180e0cb46316683

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

Filesize
166KB

MD5
5d26c6d73f48758db2e25e49165571ea

SHA1
08e6c9d801320e8e6af78b83a76d9a3f041f61a8

SHA256
c64e31e0af212e75a62da2f0a272634129b26308bc0926cfe346958ab0c4a87d

SHA512
8826d168a2072c96f7416fea98c985691c87dee4cbf3044e96414aa37fa1b5aea1c714b0b0f72ab047f40a1cde880e0f4658a4463f300fec8353592014eb3d22

Download Submit
memory/2692-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2692-660-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download