4cdc72a5b428940259beb9f39d47abacff7d429be59bca48d5ecf169d142644e

Analysis

max time kernel
120s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-08-2024 01:33

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General

Target

bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
Size

34KB
MD5

bc33fbb5ff37ca949354e7f3bb2c9df0
SHA1

02e5c4d9489d7b7432e7d665303a156ff55eb2bf
SHA256

4cdc72a5b428940259beb9f39d47abacff7d429be59bca48d5ecf169d142644e
SHA512

cb9ab67e4d2485f8b9359739adee932903e8e7675866508cbf0c0f9633ccc33471740a06fc5c5eaf959e6958c252097bfd8d3f17eaa7bf05ce321675b456b4d3
SSDEEP

192:pACU3DIY0Br5xjL/EAgAQmP1oynLb22vB7m/FJHo7m/FJHhpqW7U7OKpM:yBs7Br5xjL8AgA71FbhvszwLpM

Score

9^/10

discovery ransomware

Malware Config

Signatures

Renames multiple (4681) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre-1.8\bin\server\Xusage.txt.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\asm.md.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Trial-pl.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.AnalysisServices.AdomdClientUI.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ko-kr.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Input.Manipulations.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\net.properties.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_K_COL.HXK.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-black_scale-140.png.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\wpfgfx_cor3.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Forms.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\SUCTION.WAV.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.Native.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PPINTL.DLL.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.PowerBI.AdomdClient.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.Annotations.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\coreclr.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Input.Manipulations.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\ReachFramework.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-conio-l1-1-0.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Trial-ul-oob.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\PresentationCore.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sk.pak.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\7-Zip\Lang\eo.txt.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msaddsr.dll.mui.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Configuration.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Quic.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Security.Cryptography.Xml.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\WindowsBase.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management\jmxremote.access.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-140.png.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.Parallel.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Forms.Primitives.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ul-phn.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordVL_MAK-ul-oob.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp120.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\PresentationCore.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\PresentationCore.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\relaxngcc.md.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\mfc140u.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Trial-ul-oob.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Data.SapClient.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshe.xml.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Compression.Native.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationProvider.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_SubTrial-ppd.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-ul-oob.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Grace-ppd.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Globalization.Calendars.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\UIAutomationProvider.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr\default.jfc.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mce.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\amd64\jvm.cfg.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\meta-index.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-white_scale-180.png.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.officemui.msi.16.en-us.xml.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-pl.xrm-ms.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Excel.dll.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrcommonlm.dat.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
File created	C:\Program Files\Common Files\System\ado\msado21.tlb.tmp	bc33fbb5ff37ca949354e7f3bb2c9df0N.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	bc33fbb5ff37ca949354e7f3bb2c9df0N.exe

C:\Users\Admin\AppData\Local\Temp\bc33fbb5ff37ca949354e7f3bb2c9df0N.exe
"C:\Users\Admin\AppData\Local\Temp\bc33fbb5ff37ca949354e7f3bb2c9df0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1740

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-1-5-21-786284298-625481688-3210388970-1000\desktop.ini.tmp

Filesize
34KB

MD5
a95e766667eb6e4a00421c2821bff460

SHA1
6df0c9a22004d60e910bf65b8f53653934647577

SHA256
48fa3fc84db1313931d72800d0ac7a81be2996a53b2395361aa770ef0555f592

SHA512
803d6c50b0ad4afb858dd2f7c8dd75ba5ccb3ad2755336bbe2dd58ab5088c1f33f7c6382b24a57c8346c18f22e42cb75c1efd39966e3f1984865d1df0570dfe8

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

Filesize
133KB

MD5
ba73778f1add984626a42d10c1c1c629

SHA1
07a60f625a26b9b431bc8743bdffe4fda05fb7d0

SHA256
96563ba5af6e63ab6222919decac44eff013be7d80fba76ba802f46fe0e6784e

SHA512
69b1d734dfd47a92cfb637c17ef51fc04bf1ce315f2e5726df5979bc73e51757533f55053d7639d9e79d72374883a360658f01a6328028fbcf742d9906e6d8c3

Download Submit
memory/1740-0-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1740-986-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download