a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59

Analysis

max time kernel
150s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 11:47

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General

Target

a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
Size

456KB
MD5

32ab7a43a3cf837491cf18665f5d85e0
SHA1

c4fe994e088ed5f5b6d17ab81410636027da28cc
SHA256

a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59
SHA512

481e81a302db035a4355b5495bd0173d8187a2d3ac60977fe54f9d28ae3ee3bb071ab0ab74b7b2222fe3102b6725d5ac74d4517d9bc0b86f7ef779975bf64613
SSDEEP

6144:KiQSo6iaNSCKSkl3U73P/c00ROzq0U/glP10pIut+Wg:VQthH6RGAepIuJg

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (3954) 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/2388-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c94-2.dat	upx
behavioral2/files/0x0014000000022905-6.dat	upx
behavioral2/memory/2388-516-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-utility-l1-1-0.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-console-l1-2-0.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_SubTrial-pl.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Console.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Extensions.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\Microsoft.VisualBasic.Forms.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\meta-index.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri-Cambria.xml.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVIsvVirtualization.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskmenu.xml.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Drawing.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscordaccore.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\ReachFramework.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jdk-1.8\LICENSE.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-040C-1000-0000000FF1CE.xml.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\PresentationFramework.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTest-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad.xml.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationCore.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-ul-oob.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Grace-ul-oob.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrfrash.dat.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-console-l1-2-0.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsBase.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\ReachFramework.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-locale-l1-1-0.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_pt_BR.properties.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalDemoR_BypassTrial180-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Grace-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_MAK-ul-oob.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Pipes.AccessControl.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\PresentationUI.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Retail-ul-oob.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019MSDNR_Retail-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lt-lt.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\offreg.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\System.Windows.Forms.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial2-pl.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Retail-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TabTip.exe.mui.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Linq.Parallel.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Linq.Queryable.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_d3d.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_KMS_Client_AE-ul.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremDemoR_BypassTrial365-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Grace-ppd.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Thread.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jli.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_pwa_launcher.exe.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-pl.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_MAK_AE-ul-oob.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\Microsoft.VisualBasic.Forms.resources.dll.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jar.exe.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Trial-ul-oob.xrm-ms.tmp	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.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	a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe

C:\Users\Admin\AppData\Local\Temp\a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe
"C:\Users\Admin\AppData\Local\Temp\a48fbf495dcd3a19db531e91044b9388e8af57c6c2924165bd3a8976c7486e59N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2388

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-1-5-21-4089630652-1596403869-279772308-1000\desktop.ini.tmp

Filesize
456KB

MD5
603e5ab0a75a9697b2e5ed9dd059eace

SHA1
7a73031bed979fa388050e9ff7d7f14cc9a564e3

SHA256
7a03226a791e621bdc1223618d9526fb0df2496ea48a4b6e80984338f450e7c3

SHA512
505f6199d72809316cb6cc192539c50f0a0ac3018e70bb1641a8e2ff1ebecd4625880461db510f833e8d825d72ea71bfb9cfc19b05fa6f24ecf1f8370e019913

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

Filesize
555KB

MD5
1310a8aab3acf235f79053c9559832a2

SHA1
a6084f439827aa80e8077c0e958694f56330935b

SHA256
f0c38f42f44cacbfa4e87fd4ec2874931e76f2636b17226e4aebf8d80884ba72

SHA512
d5571c7e09eef2d461eeba931e2563533923cce623167950365196ee3d15ec85631f4ed45ed2586279d83de7bf3798f7da147d13b1750316ffdb0fdfd03f16c2

Download Submit
memory/2388-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2388-516-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download