bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afa

Analysis

max time kernel
119s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/09/2024, 03:44

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General

Target

bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
Size

39KB
MD5

bfbac203a702ff4fd60ebeb0b42eecb0
SHA1

2b2b85fbacf6df0cd88fcbcd0c652862cdadc74d
SHA256

bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afa
SHA512

b855595e30bbce86a8f65eea51e505edd886292c999a0aa2d08f5412e3f5dc78ca3b1ef4b64dd5522cce75c5640c36792f4bc925445489f882c77766cace704d
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9Hx3R9pi1xOR9pi1xY:CTW7JJ7Th9ko9kU

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4669) 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/1056-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233da-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/1056-1013-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_OEM_Perp-ppd.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\STSLISTI.DLL.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Process.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\resources.pak.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationTypes.resources.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Grace-ppd.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\blacklist.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-ul.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_MAK_AE-ul-phn.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\Sybase.xsl.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\DBGCORE.DLL.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Forms.resources.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\mesa3d.md.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-errorhandling-l1-1-0.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\trusted.libraries.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Times New Roman-Arial.xml.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Grace-ul-oob.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART6.BDR.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVCatalog.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationTypes.resources.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\jpeg.md.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_OEM_Perp-ul-phn.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Grace-ppd.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CHART.DLL.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClient.man.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Parallel.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\zh-CN.pak.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.scale-180.png.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Core.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\PresentationUI.resources.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\WindowsFormsIntegration.resources.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jre-1.8\bin\resource.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.DataAnnotations.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Quic.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\Microsoft.VisualBasic.Forms.resources.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\THIRDPARTYLICENSEREADME-JAVAFX.txt.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-ul-phn.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\MicrosoftDataStreamerforExcel.dll.manifest.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.ServicePoint.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\PresentationUI.resources.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-ul-oob.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OART.DLL.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Data.DataSetExtensions.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Numerics.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\et.pak.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Internet Explorer\ielowutil.exe.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-processthreads-l1-1-0.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-synch-l1-1-0.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.VisualBasic.Core.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Numerics.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_OEM_Perp-ul-phn.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail2-ppd.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019MSDNR_Retail-ul-phn.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ul-oob.xrm-ms.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.DataIntegration.FuzzyMatchingCommon.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-processthreads-l1-1-1.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-heap-l1-1-0.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Serialization.Xml.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\3082\MSO.ACL.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\7-Zip\Lang\it.txt.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.InteropServices.RuntimeInformation.dll.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\cryptix.md.tmp	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.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	bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe

C:\Users\Admin\AppData\Local\Temp\bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe
"C:\Users\Admin\AppData\Local\Temp\bfb56a5d2d33b258c687908d1afc24a015b3e1e3a192543ab86876fbcc352afaN.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1056

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
40KB

MD5
c295f261738e0a6439c74e8a6b8840ba

SHA1
886c7d939814c1989c4dbbb604671e7755a67a61

SHA256
ccf5e928b4c749298c9b5747caa78c1c65106afd0928c99ae95b530cc94365c2

SHA512
73b90e8ceff533f2874c2b04ef36d723e2a614ab658112eef93ceeb2b685df0158be2fdd6a2135cfcc6cecd63a0e575099165d695f2fc7d23931cd7dc1a1f092

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

Filesize
138KB

MD5
3a90c8c6d88b802b345db29b5c522df9

SHA1
33e2ec1c9ac306862cbbc6954bd9eb2bc63c0d81

SHA256
e6328b3559945f81b80ba774c51dabb46df2966cc4325c7977c96027c4b55022

SHA512
c53f89fb7d4df6364530524ea779a29caf5bde7f156bb09becb0f36efa5ece5f79f74ab9ce924482f61ec629bf393154d92fce8725d455bd36a810344c0a2031

Download Submit
memory/1056-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1056-1013-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download