86e589fcebef31711c7dce1c9fadeac9646a7bd40ac2253b3fac2f8f3baf4fa1

Analysis

max time kernel
120s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2024, 14:55

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General

Target

779c75678a9e7eafdb8893fca11eb870N.exe
Size

27KB
MD5

779c75678a9e7eafdb8893fca11eb870
SHA1

71c72ffe8454e49cba2ffba1ac0ce6dc357b1d0d
SHA256

86e589fcebef31711c7dce1c9fadeac9646a7bd40ac2253b3fac2f8f3baf4fa1
SHA512

427ee33a96ee7d5d5aeff57efd3ef81e61fff8137cf40d943eeadc68b45137c74950a490ccda43943d4cfdffb05c62c8126bf7e913d0f77a99e9f5dd5430cd72
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9bJSsJSNOnOH:CTW7JJ7TFJSsJS1

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4685) 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/4936-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0009000000023462-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/4936-1018-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\mip_telemetry.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\7-Zip\Lang\sv.txt.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\ReachFramework.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\excelcnvpxy.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ul-phn.xrm-ms.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationProvider.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Extensions.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\PresentationCore.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\icu.md.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Java\jre-1.8\bin\JAWTAccessBridge-64.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ViewOnly_ZeroGrace-ul-oob.xrm-ms.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymxb.ttf.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-environment-l1-1-0.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebProxy.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Reader.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.Common.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_OEM_Perp-ul-oob.xrm-ms.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientOSub_eula.txt.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.scale-140.png.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\7-Zip\Lang\ku-ckb.txt.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.Serialization.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Permissions.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\UIAutomationProvider.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelFloatieTextModel.bin.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\TabTip.exe.mui.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Java\jre-1.8\lib\tzmappings.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-140.png.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Common Files\System\msadc\msadco.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.CSharp.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\ReachFramework.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessRuntimeR_PrepidBypass-ppd.xrm-ms.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\sr-Cyrl-RS\msipc.dll.mui.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\InkObj.dll.mui.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\UIAutomationProvider.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.IO.Packaging.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jawt.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-pl.xrm-ms.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-80.png.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Compression.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\UIAutomationProvider.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\System.Xaml.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\SUCTION.WAV.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clretwrc.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\WindowsBase.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libffi.md.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\jpeg.md.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymxl.ttf.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.scale-140.png.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\WindowsFormsIntegration.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\WindowsFormsIntegration.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Internet Explorer\ieinstal.exe.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-file-l1-2-0.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ComponentModel.Annotations.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Drawing.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Internet Explorer\en-US\iexplore.exe.mui.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail3-pl.xrm-ms.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Retail-ul-oob.xrm-ms.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\MSOSEC.XML.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\PresentationUI.resources.dll.tmp	779c75678a9e7eafdb8893fca11eb870N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Retail-pl.xrm-ms.tmp	779c75678a9e7eafdb8893fca11eb870N.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	779c75678a9e7eafdb8893fca11eb870N.exe

C:\Users\Admin\AppData\Local\Temp\779c75678a9e7eafdb8893fca11eb870N.exe
"C:\Users\Admin\AppData\Local\Temp\779c75678a9e7eafdb8893fca11eb870N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4936

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-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

Filesize
28KB

MD5
39803c24677875396590d397f3e0b040

SHA1
fc3935616b9c444d3ffec6d41fe5231c80fc0f3c

SHA256
4a8acfbe24562c9d1ae413d6c6a30c007e67c752bd598c9fa387b570db3a3ed2

SHA512
d94be9e38450c5c1f83c1c60ed5222cb47db08ccb5c57cf7e2592b052c3655347e5988a87282907937954a57877f0c98f913deb12742c6217e1e63c85ca1c934

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

Filesize
126KB

MD5
c838fd44c68674f22fc7b6e44de37e7e

SHA1
ac659019c76a45a93d66a10c6fae72f8d66b39cf

SHA256
e494d973a2d74c9d37d124e543ad98d0f387bac04cc396c75c0333281eee9f13

SHA512
9b25e561b06f3c92a65f269a3f44b1040108270789e007dc9af4a07ebb38f122e4d1a65377330d9c84ebcd222f64b6346dc61841dab3dfec2819bcc3e8333dae

Download Submit
memory/4936-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4936-1018-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download