8e75be83152c73008320184e978f63053ff5fa3ecf8cb1e5e613c56c4c4add51

Analysis

max time kernel
120s
max time network
120s
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, 18:30

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General

Target

4458886108f7250bcf853baabfcca770N.exe
Size

68KB
MD5

4458886108f7250bcf853baabfcca770
SHA1

71be40052e496236f503f9f47c05a442d8ad95d3
SHA256

8e75be83152c73008320184e978f63053ff5fa3ecf8cb1e5e613c56c4c4add51
SHA512

c5e238304b8012157f1deafb9ffa6d4eb7229737fa57c641061b06b8d1e1d1b2e82cb0c655ea8b71bdf19611f9164497800d47b170394f25beea632ee8506e33
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjSEXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2r+:V7Zf/FAxTWtnMdyGdy4AnAP4A

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4638) 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/1508-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002340c-2.dat	upx
behavioral2/files/0x0004000000022922-6.dat	upx
behavioral2/memory/1508-848-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription2-ul-oob.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_MAK_AE-ul-phn.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_KMS_Client-ul-oob.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\MicrosoftDataStreamerforExcel.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\7-Zip\7zCon.sfx.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationClientSideProviders.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\zh-CN.pak.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\sv\msipc.dll.mui.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\7-Zip\Lang\tr.txt.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Grace-ul-oob.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-ppd.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-timezone-l1-1-0.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\directshow.md.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_KMS_Client-ul.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-white_scale-140.png.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\ja-JP\msinfo32.exe.mui.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Drawing.Primitives.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.Primitives.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\lcms.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-white_scale-80.png.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\clrgc.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Emit.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Presentation.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.ReportingServices.QueryDesigners.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Common Files\System\msadc\en-US\msdaremr.dll.mui.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\limited\local_policy.jar.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jre-1.8\bin\net.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\sunmscapi.jar.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue II.xml.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Retail-ppd.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Grace-ul-oob.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\WindowsBase.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-datetime-l1-1-0.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\keytool.exe.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription1-ul-oob.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.reportviewer.winforms.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\hu\msipc.dll.mui.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\msvcp140.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Forms.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\WindowsBase.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\System.Runtime.InteropServices.RuntimeInformation.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Forms.Design.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Forms.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\CIEXYZ.pf.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-ul-phn.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui.xml.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\WindowsBase.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Input.Manipulations.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-process-l1-1-0.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.HttpListener.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Input.Manipulations.resources.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\bci.dll.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-ul-oob.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_KMS_Client_AE-ul.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeOneNote.nrr.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\sql120.xsl.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Grace-ppd.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_KMS_Client_AE-ul.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-pl.xrm-ms.tmp	4458886108f7250bcf853baabfcca770N.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	4458886108f7250bcf853baabfcca770N.exe

C:\Users\Admin\AppData\Local\Temp\4458886108f7250bcf853baabfcca770N.exe
"C:\Users\Admin\AppData\Local\Temp\4458886108f7250bcf853baabfcca770N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1508

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
68KB

MD5
bd5030fcfdf3141663a3d6a672ed0f75

SHA1
f5391afbf79ee68b5038e4dae3889c8a82406d95

SHA256
c2e5dcdf96370af9aabaec71858420a4972210f9866e5204296ef4ee65e6f993

SHA512
a28e802dc485ec06d23d3f9c88e06e950988cdafcc29c33ef7e6d97f174129e95ed9d6081e9f90af2b1607d132543681d5033b0f43338d2308ec5f065ba93a8b

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

Filesize
167KB

MD5
a7b7588d8d6995f50d597842a6922230

SHA1
cfec7b92584e58128d57e6e237ea71dee366e912

SHA256
481d7078ed27f48f6b1e3e3856ed65800b88f58eb1bf1473fc78d93e9db75023

SHA512
15749714aefbca4aa13edb3bac3426c60271d43d999644fd6d9638658ce6c626ec5d84290a4929e1b518a0522f025fa3a5d55cb16b2261ee5adfd0e53daf4d3c

Download Submit
memory/1508-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1508-848-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download