31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18-09-2024 09:26

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General

Target

31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
Size

50KB
MD5

bc1168de1f1f89befcc608f29a6b1c20
SHA1

9b940a1ea4f4423a77f4094fc27eb7bcaab4fb26
SHA256

31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8
SHA512

df91bb05cc31ae39f1194137b8ac196ddbd18be2bdaa955f5435f20cab55dd3fc9f133571bfc830d161973f817964eb491ad1568f7790041cde8c91fb72aea98
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9ARFRX:V7Zf/FAxTWoJJ7TC

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4672) 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/1256-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000234da-2.dat	upx
behavioral2/files/0x000c0000000220a6-6.dat	upx
behavioral2/memory/1256-1018-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_MAK-pl.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\Microsoft.VisualBasic.Forms.resources.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\glib.md.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTest-pl.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_MAK_AE-ppd.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_MAKC2R-ppd.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.NETCore.App.deps.json.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Controls.Ribbon.resources.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial2-ul-oob.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-pl.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Trial-ppd.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-white_scale-100.png.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Internet Explorer\iexplore.exe.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jdk-1.8\include\jni.h.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javafx_iio.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-pl.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jdk-1.8\release.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ul-phn.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\tr.pak.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Http.Json.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationFramework.resources.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\WindowsBase.resources.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Forms.Primitives.resources.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Cryptography.Pkcs.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.DCF.DCF.x-none.msi.16.x-none.xml.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial2-ppd.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_logo_large.png.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-ul-oob.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ul-oob.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTrial-pl.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\MicrosoftDataStreamerforExcel.vsto.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Common Files\System\Ole DB\fr-FR\msdasqlr.dll.mui.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteFreeR_Bypass-ppd.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProMSDNR_Retail-pl.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_KMS_Client-ppd.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Xaml.resources.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-handle-l1-1-0.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-convert-l1-1-0.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_FA000000009\FA000000009.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\rtscom.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Forms.Primitives.resources.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sunec.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Gill Sans MT.xml.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_FA000000050\FA000000050.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsdeu.xml.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Globalization.Extensions.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Extensions.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.Primitives.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSOUC_COL.HXT.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsnor.xml.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Buffers.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Timer.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Primitives.resources.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationProvider.resources.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Trial-ul-oob.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ul-oob.xrm-ms.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Globalization.Calendars.dll.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\xjc.exe.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\jcup.md.tmp	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.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	31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe

C:\Users\Admin\AppData\Local\Temp\31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe
"C:\Users\Admin\AppData\Local\Temp\31f394aba7f3b7a210ef6fcfe6dc4a5a8215b63e602f402d220a3768a8d2a3e8N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1256

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-1-5-21-523280732-2327480845-3730041215-1000\desktop.ini.tmp

Filesize
50KB

MD5
fab01ef93495d4e756bd4c22636246c4

SHA1
3b66cdf5e95ddcd9dfe90abd399f19900b00eb4c

SHA256
aac7c9c6fc4c65d41658356fcf193d1edbd40264a11944cefda58584694a39f2

SHA512
0b45cb8e3120cf7bd91bbc03e18f5d469aa9a1cb809b05c2e584728471762da12f17880cf988e1e2100da7a7004ccf6c43e2fe71cf7f2ba5a07a5dc04d64f3df

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

Filesize
149KB

MD5
a2418698db4bcc7bfb86d12494f9f593

SHA1
fa0d0e4d7e9602bd4599a8692f845bd683d7bb7a

SHA256
b57f101ec6ff505a2d6525f0b6357f6f5a01e0a27bdc6ea394924ccd5feee17d

SHA512
2659f8eb4172e858cbd44af019b30c3936bb4da9508ebf5497a194ef5701ca28885ed9515092063d586308fd2a5e95ac2f3111e8fb52bbd8c817366c1a07d69a

Download Submit
memory/1256-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1256-1018-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download