901b98dc70daf87f2f1e37fac8947e56954384c1b38d5638a07c917d4b309579

Analysis

max time kernel
120s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-08-2024 14:55

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General

Target

c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
Size

83KB
MD5

c29c8ea16e6e2e5c7885a2dfd98fecf0
SHA1

0a4af1c39213afe59c21fc2501769b4c36f2ab7d
SHA256

901b98dc70daf87f2f1e37fac8947e56954384c1b38d5638a07c917d4b309579
SHA512

6c9aad8ecb1c05fb43cd21d51c480420a32d79155aaad926a9335ff4b4dac4d392f0b99c5e3928d9f0ab21a302ececbf8b5e9541ae46f8644f1fd89de2e182e2
SSDEEP

1536:V7Zf/FAxTWoJJZENTB6iwLqEKhrUheDBZzm:fny1tEiiwLdKhzDDa

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4508) 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/4552-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0007000000022aa5-2.dat	upx
behavioral2/files/0x0004000000022922-6.dat	upx
behavioral2/memory/4552-860-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\Ole DB\ja-JP\msdasqlr.dll.mui.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\UIAutomationClient.resources.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTrial-ul-oob.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\PresentationUI.resources.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\ReachFramework.resources.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\PresentationCore.resources.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Paper.xml.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Grace-ppd.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-debug-l1-1-0.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Extensions.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.InteropServices.RuntimeInformation.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\santuario.md.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-heap-l1-1-0.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.osmuxmui.msi.16.en-us.xml.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebProxy.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.TraceSource.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-phn.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\Informix.xsl.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Transactions.Local.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Requests.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.CompilerServices.Unsafe.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationFramework.resources.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\xmlresolver.md.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationProvider.resources.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\JavaAccessBridge-64.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_MAK_AE-ppd.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_COL.HXC.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\tracedefinition130.xml.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ul-phn.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp3-pl.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH_F_COL.HXK.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Controls.Ribbon.resources.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub_eula.txt.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ro-ro.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome.dll.sig.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_MAK_AE-ppd.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_MAK_AE-pl.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\IFDPINTL.DLL.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Windows.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-black_scale-80.png.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipssrl.xml.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Threading.AccessControl.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\LINEAR_RGB.pf.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTrial-ul-oob.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-locale-l1-1-0.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.EventBasedAsync.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Handles.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\PresentationFramework.resources.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-pl.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l1-2-0.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\t2k.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\thaidict.md.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Grace-ppd.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Grace-ppd.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Grace-ppd.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Trial-ul-oob.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTest-ul-oob.xrm-ms.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHKEY.DAT.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ComponentModel.EventBasedAsync.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsdt.dll.tmp	c29c8ea16e6e2e5c7885a2dfd98fecf0N.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	c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe

C:\Users\Admin\AppData\Local\Temp\c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe
"C:\Users\Admin\AppData\Local\Temp\c29c8ea16e6e2e5c7885a2dfd98fecf0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4552

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
84KB

MD5
2bbeb04313db53718172a29506d99ec7

SHA1
65b6f5ed7e00339ab7b9bfb3bb0814e0a2d8f89d

SHA256
684d8ed117d34caac7d80f22c29e291cf3dbfe0a52c968ef19a20dfdbcacd8f3

SHA512
c3de798a4c92bfa68f073b2eeb96a910ec263f3de108ab40826cb97240f567722e412e239e948311b70cf491f3fd08e66984756c2ee5fb997b2ec0ae422157ad

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

Filesize
182KB

MD5
f8cb38d80cdee64f8acd521e42fdb81d

SHA1
8b1b7b6aea3ed41b0a163e01463a3533e78def3a

SHA256
96419fc37297cb50d764a4b86fcd849f6ab872fddb43f3d131d59b91d7d28b39

SHA512
209e875d26b60bf014277df3da5b069697aea6f519fec0ff6c361a6698dc0d022f5c8cc2dc06d5e29ccaf985bde172e7587ee85730dd4682ea3ddc5b7a79bf01

Download Submit
memory/4552-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4552-860-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download