4070c38ccee1f946a8b0a296d848e7762314750da7dd8e2f58fb0fa2a0d05054

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 14:42

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General

Target

bf670698688f30747ea025c7fb2e55e4.exe
Size

70KB
MD5

bf670698688f30747ea025c7fb2e55e4
SHA1

6ec670aefc1ca2611e3314f5b31dc4d96d88fa70
SHA256

4070c38ccee1f946a8b0a296d848e7762314750da7dd8e2f58fb0fa2a0d05054
SHA512

8d38714f20e4b1990818a27806f8213725bb35db1e98ea3a909f53949e8388c2c3d7a8d6165be198c801b5103799976fbfd60c7538f9d4cb2980544a7ad62c3d
SSDEEP

1536:67Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8asUsry1Sy1t:+nyiQSohsUseVn

Score

9^/10

ransomware upx

Malware Config

Signatures

Renames multiple (5036) 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/1336-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000600000002327d-2.dat	upx
behavioral2/files/0x0008000000023408-6.dat	upx
behavioral2/memory/1336-1790-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.Design.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-util-l1-1-0.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub2019_eula.txt.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_f2\FA000000002.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.VisualBasic.Core.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sunec.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-runtime-l1-1-0.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Trial-pl.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\CheckpointHide.TTS.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.X509Certificates.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.CoreLib.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Java\jdk-1.8\include\classfile_constants.h.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-sysinfo-l1-1-0.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\mesa3d.md.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_MAK-ul-phn.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\System.ValueTuple.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\7-Zip\Lang\bn.txt.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Forms.Design.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Locales\zh-TW.pak.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\sunec.jar.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\XLLEX.DLL.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL105.XML.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Intrinsics.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Forms.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\PresentationUI.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymsb.ttf.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Cryptography.Xml.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsesp.xml.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\tipresx.dll.mui.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL108.XML.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\VISSHE.DLL.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\UIAutomationProvider.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_MAK-ul-phn.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems32.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationClient.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Xaml.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\javaws.policy.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessEntryR_PrepidBypass-ul-oob.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\ReachFramework.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-ul-oob.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SLINTL.DLL.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Windows.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.reportviewer.winforms.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Input.Manipulations.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\PresentationCore.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp3-pl.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-ppd.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-140.png.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSVCP140_APP.DLL.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipskor.xml.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationTypes.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\WindowsFormsIntegration.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Google\Chrome\Application\110.0.5481.104\eventlog_provider.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-GB\tipresx.dll.mui.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTrial-pl.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mscss7en.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000042\mecontrol.png.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Java\jre-1.8\bin\jp2iexp.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Locales\ur.pak.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_MAK-pl.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ul-oob.xrm-ms.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymk.ttf.tmp	bf670698688f30747ea025c7fb2e55e4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Controls.Ribbon.resources.dll.tmp	bf670698688f30747ea025c7fb2e55e4.exe

C:\Users\Admin\AppData\Local\Temp\bf670698688f30747ea025c7fb2e55e4.exe
"C:\Users\Admin\AppData\Local\Temp\bf670698688f30747ea025c7fb2e55e4.exe"
1⤵
- Drops file in Program Files directory
PID:1336

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-711569230-3659488422-571408806-1000\desktop.ini.tmp

Filesize
70KB

MD5
386e836b511d6a774e0a6e8f993a1a53

SHA1
8e20f7d36831ffbec0caaa7a2290c2fb3ae8bf8b

SHA256
6d70e3cb9ad2b846f24a674cfcfdefd64d29ec780b6d3ced4850f8f64c43a5d1

SHA512
f5b4568ba4a5ee62ddc5e4b9ae08591fd9945228bfd09553ba3eeb3eb5b520e1ce24d29cbd0da0cf827e021d4a1886fa81ee7c7c7efde16ed38183e2aaf71e3d

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

Filesize
169KB

MD5
00ff3d718e294a2407ce0ae90881f359

SHA1
21dd61cf2ce44bc0e74e2341878b91660e434e68

SHA256
85402ee494a56ae79c40212cdebab8fe64af73cb81d9a726961b468395c348c4

SHA512
6defd2c5ac17ce0e80026eb9b8ad41261b75e5937f7b43cce2e3854a84856952cc04a8984c0c8fd19661cb3723d81a9dc934504a8a488eea55d683e9e3e53997

Download Submit
memory/1336-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1336-1790-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads