3e0586bd12c6374d5db958ab336898dc08fd8f36afdcf69c94d1030a887a7673

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2024, 11:14

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General

Target

856e44e06ad805a0b9a654164a106d20N.exe
Size

61KB
MD5

856e44e06ad805a0b9a654164a106d20
SHA1

cb66f87276db617881351bd9256627a2de4aeafb
SHA256

3e0586bd12c6374d5db958ab336898dc08fd8f36afdcf69c94d1030a887a7673
SHA512

0447ac47bed6d750839660bc85f989252a8f6df733ad7eacb31edf9b3d8f53ea02911e2f0fcc9237df5d7e5f03c1f65c6d774ce31c15729e273fc8da29484c30
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjSEXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rZ:V7Zf/FAxTWtnMdyGdy/

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4640) 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/972-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023452-2.dat	upx
behavioral2/files/0x0004000000022922-6.dat	upx
behavioral2/memory/972-1912-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscordbi.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jmap.exe.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Grace-ul-oob.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Retail-ppd.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\7-Zip\7-zip.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Emit.Lightweight.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Windows.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationProvider.resources.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\unicode.md.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\tabskb.dll.mui.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.ResourceManager.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_ko.properties.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Retail-pl.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msoianetutil.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscorrc.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationProvider.resources.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\gstreamer.md.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-ul-oob.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\7-Zip\Lang\en.ttt.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.TextWriterTraceListener.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription1-pl.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelCtxUICellLayoutModel.bin.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-pl.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ppd.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_Subscription-pl.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Dataflow.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial1-ul-oob.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.scale-140.png.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\micaut.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.RegularExpressions.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Xaml.resources.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jsdt.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-string-l1-1-0.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\bin\java_crw_demo.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\ecc.md.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\localedata.jar.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationCore.resources.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\TPN.txt.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\PresentationCore.resources.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-time-l1-1-0.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\pkeyconfig-office.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\UIAutomationProvider.resources.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-ul.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-pl.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.scale-140.png.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\cursors.properties.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management-agent.jar.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ViewOnly_ZeroGrace-ul-oob.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.pt-pt.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\PresentationCore.resources.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\WindowsFormsIntegration.resources.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\tzdb.dat.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_zh_CN.properties.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial4-pl.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp4-ul-phn.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Grace-ul-oob.xrm-ms.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.OData.Core.NetFX35.V7.dll.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\LASER.WAV.tmp	856e44e06ad805a0b9a654164a106d20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\it\msipc.dll.mui.tmp	856e44e06ad805a0b9a654164a106d20N.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	856e44e06ad805a0b9a654164a106d20N.exe

C:\Users\Admin\AppData\Local\Temp\856e44e06ad805a0b9a654164a106d20N.exe
"C:\Users\Admin\AppData\Local\Temp\856e44e06ad805a0b9a654164a106d20N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:972

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-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini.tmp

Filesize
61KB

MD5
9d6fbc3dad0ce9e3ac903a79b0cf21e3

SHA1
2e3a3bd47fc666662bd8f7964e582d6375364a17

SHA256
bb324857688d556d98347414f8387f4a235c653dc02a9b1f5e0306c5e2a031b8

SHA512
94798673578cee526398ca9b5f688bea7177a56c18a6212cf5af52aac4803d15e7523941d5cc989a7f094894e7f6528a3aa5d0ae229904489ab9b509f363a3f2

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

Filesize
160KB

MD5
4314577c800b227f332b5024a2966f44

SHA1
b13c8405f0b95ccb8235d530029d855dca949f1a

SHA256
a3b9ede891c7c0feb5cc81699ec45d0f8bc91b2cfd0dff1a136c2a86c7d1a3a8

SHA512
10bfb5a74ebbf83cd227a9a4cab76faba15bf53adc7fd0e8b64def85ed7c825db4f52c030525db8f51eae0a775c145117dc8899d2991472adfa0467641c5bc8d

Download Submit
memory/972-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/972-1912-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download