6d8768994c31ca34613456b5ca046b57f3e191b091a3d235a336ce398b39af83

Analysis

max time kernel
120s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 15:43

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General

Target

a64662cda6f26951571ae358635663d0N.exe
Size

130KB
MD5

a64662cda6f26951571ae358635663d0
SHA1

bdd9cb3702645fcf8111e05046f2bd1aaf9d7d2e
SHA256

6d8768994c31ca34613456b5ca046b57f3e191b091a3d235a336ce398b39af83
SHA512

0bf7e08bce03000442be007964cc5fcee4e1e80b866c5729053e1698edf8265d44333cb5d0183f10af51872a9b91834804908a902d495c52ac77ad8ccae0e979
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8IZT4TWn1++PJHJXA/OsIZfzc3/Q8IZTX:fnyiQSo7ZUQSo7Zj

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4360) 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/3288-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233fe-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/3288-848-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Forms.Design.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\relaxngdatatype.md.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Windows.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Windows.Forms.Design.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_f33\FA000000033.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Data.Common.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\UIAutomationClient.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\unicode.md.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationFramework.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-environment-l1-1-0.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_MAK-ul-oob.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Common Files\System\ado\msado26.tlb.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Primitives.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\System.Windows.Forms.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.TraceSource.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\ReachFramework.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTrial-pl.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Numerics.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SETLANG_COL.HXC.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-stdio-l1-1-0.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-runtime-l1-1-0.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_OEM_Perp-ul-phn.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.Specialized.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Emit.Lightweight.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationTypes.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Java\jdk-1.8\release.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial2-ppd.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-time-l1-1-0.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Handles.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-ppd.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jhat.exe.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.osmmui.msi.16.en-us.xml.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\WindowsBase.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.WindowsDesktop.App.runtimeconfig.json.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\fr.pak.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Xaml.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\UIAutomationTypes.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\PresentationFramework.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems32.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Dynamic.Runtime.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XmlSerializer.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ValueTuple.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\jfr\default.jfc.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\oledb32r.dll.mui.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\UIAutomationClient.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\public_suffix_list.dat.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientVolumeLicense_eula.txt.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\splash.gif.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Grace-ppd.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ul-phn.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSOUC_COL.HXT.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.FileSystem.DriveInfo.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.Extensions.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\UIAutomationClientSideProviders.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Retail-ul-phn.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-bridge-office.xrm-ms.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-processthreads-l1-1-1.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipTsf.dll.mui.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Json.dll.tmp	a64662cda6f26951571ae358635663d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\PresentationUI.resources.dll.tmp	a64662cda6f26951571ae358635663d0N.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	a64662cda6f26951571ae358635663d0N.exe

C:\Users\Admin\AppData\Local\Temp\a64662cda6f26951571ae358635663d0N.exe
"C:\Users\Admin\AppData\Local\Temp\a64662cda6f26951571ae358635663d0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3288

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-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

Filesize
130KB

MD5
2b2fac5253652450dd12865c2b99f781

SHA1
bdc1ff3e157bd462ebf3416285a490d6fab25f52

SHA256
05c6efb99a62886d92daffdd8c798aa5942ac6a80e09fff4470a026bd40ef21e

SHA512
21f7b3ea079e973bba6214a22d6efc580b498de029a3e4bc772431c476d20b31f47e73851d30af2611500b2f4b5c34d4c41d00e49d33acd710ce790c3f1d310f

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

Filesize
229KB

MD5
90b671e6e614a32979fe7ed786330e3e

SHA1
ca3c66945498b9d42e589805c7caff4c183ce02f

SHA256
b44de552f48c5abb2d4f6e82073b78dfe0062774b1484b5a326875bf30c68e09

SHA512
04a14350afe710531553160ef0d1fa864cf4d1c8d9984f69d68cc4dc14daaba2309620e9cd4d2e61a9ddd79b303426f7719411aab318e44a9bdcebf6a2998431

Download Submit
memory/3288-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3288-848-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download