bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05

Analysis

max time kernel
120s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/10/2024, 14:42

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General

Target

bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
Size

33KB
MD5

63dc08e48f6e8051607f0df34cec26e0
SHA1

5679b2b0aed77a167a763d9069d249aa0fb8925d
SHA256

bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05
SHA512

ff2b1a468d4a74ea09788e82d341341954b603ded3ca6e4cf6c02b841ba889d2a301ffba31e50dd4cac49f3cea94e4e3885f6c521c921f06ce949bf7a03678a1
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATBHfBo8o3PwqAJyqAJl:CTW7JJZENTBHfiPl

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4665) 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/1292-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0008000000023c9e-2.dat	upx
behavioral2/files/0x0014000000022912-6.dat	upx
behavioral2/memory/1292-787-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Resources.Writer.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Forms.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-ppd.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\excel-udf-host.win32.bundle.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\libxml2.md.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Client\ucrtbase.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ul-oob.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_OEM_Perp-ul-oob.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msoianetutil.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Forms.Primitives.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-ul-phn.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_Subscription-ul-oob.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_PrepidBypass-ppd.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\TabTip.exe.mui.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management\snmp.acl.template.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_WHATSNEW.XML.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OneNote.OneNote.x-none.msi.16.x-none.xml.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Subscription-ul-oob.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-ppd.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\et-EE\tipresx.dll.mui.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.NameResolution.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\java.security.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-private-l1-1-0.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\minimalist.dotx.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Library\Analysis\ATPVBAEN.XLAM.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.DataContractSerialization.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTrial-ppd.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\SUCTION.WAV.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSWORD.OLB.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.scale-80.png.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.th-th.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\ucrtbase.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\asm.md.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ul-phn.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelInterProviderRanker.bin.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\kn.pak.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-3101-0000-1000-0000000FF1CE.xml.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_KMS_Client-ul.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\PresentationFramework.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Forms.Design.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\PresentationCore.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javaw.exe.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\splash.gif.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\CT_ROOTS.XML.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymsl.ttf.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TabTip.exe.mui.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Permissions.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\WindowsFormsIntegration.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\Microsoft.VisualBasic.Forms.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\pkcs11wrapper.md.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-black_scale-140.png.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\lt\msipc.dll.mui.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\7-Zip\Uninstall.exe.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.Primitives.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue.xml.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProDemoR_BypassTrial180-ppd.xrm-ms.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Data.Recommendation.Common.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Xaml.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Xaml.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Forms.resources.dll.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsel.xml.tmp	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.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	bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe

C:\Users\Admin\AppData\Local\Temp\bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe
"C:\Users\Admin\AppData\Local\Temp\bf8a06391699c7b46942d6e5ea765ad2f7eda1e68256e9f4e1daa9a9feb22f05N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1292

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-1-5-21-2437139445-1151884604-3026847218-1000\desktop.ini.tmp

Filesize
33KB

MD5
44d186bd3a0f6b31c82ddfd095743ae7

SHA1
c74b23dc65fb391a5fdfc3e08257d521781aae23

SHA256
ddf0a82c11a35da9557de4d1699693170c6d853bbe057f7a03281a8521fc933e

SHA512
e26991af2d7d9ce290e63b0929bb0ac827b6a46dd515b8474fb8d4d3d9f472e8535430c662403a13c43982d8c34b315962cdbf0fce747af355eb49b512d22f92

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

Filesize
132KB

MD5
3299d516b7427b231cd40f04b7e33d16

SHA1
2ec98d27712b9e5f85985170771163b252408058

SHA256
0689db483727005231653a2697dad3cf914c4f85b362af88576cd68d68110667

SHA512
8854fef5749de6eedebb64afc95f8d4f3497e5f7287a08df846e49dad0e12fa46821c03ec607187e646bd72a4f63a7c8a7340f134e89e7aff326e62476d9dc2e

Download Submit
memory/1292-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1292-787-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download