f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2024 04:17

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General

Target

f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
Size

90KB
MD5

a546d4da7ffeb5f31f5a7a9e44b22010
SHA1

e110e832854e42773931fc96ff457dcc355852e7
SHA256

f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4
SHA512

43279c084f90fee2dca01ec30ccf2fda835fe520ac1a8eaca95ad3706434106904576032cf48801e2856fd73ac17745b1eb935fb9ea88305e45ec9b15201f116
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxY5NKZDLKZDV:fnyiQSox5WDgDV

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4960) 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/3336-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023436-2.dat	upx
behavioral2/files/0x000400000002291b-6.dat	upx
behavioral2/memory/3336-848-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsoundds.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-timezone-l1-1-0.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Trial-pl.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_OEM_Perp-ul-phn.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ppd.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationClientSideProviders.resources.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\System.Windows.Forms.Design.resources.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-debug-l1-1-0.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\CHICAGO.XSL.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\msgr8es.dub.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jdk-1.8\jre\Welcome.html.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ppd.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationTypes.resources.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrmstp.exe.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.XLS.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Formatters.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.Linq.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Input.Manipulations.resources.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Retail-pl.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.HostIntegration.Connectors.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_common.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_KMS_Client-ul-oob.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-ul-phn.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-black_scale-140.png.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVCatalog.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\WindowsBase.resources.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jdk-1.8\bin\idlj.exe.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Grace-ul-oob.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTrial-pl.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\i640.hash.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msaddsr.dll.mui.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Frosted Glass.eftx.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ul-phn.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial3-ppd.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp5-pl.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTest-ul-oob.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\System.Spatial.NetFX35.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\APPLAUSE.WAV.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Xaml.resources.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\xalan.md.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ul-phn.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\osfFPA\addins.xml.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Compression.Brotli.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Retail-ul-phn.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.bg-bg.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-CA\tipresx.dll.mui.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\insert.xml.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART8.BDR.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\WindowsBase.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.Primitives.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Grace-ppd.xrm-ms.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\System.Windows.Forms.Primitives.resources.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-profile-l1-1-0.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\WIND.WAV.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\Microsoft.VisualBasic.Forms.resources.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\PresentationCore.resources.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\WidevineCdm\_platform_specific\win_x64\widevinecdm.dll.sig.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-localization-l1-2-0.dll.tmp	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.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	f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe

C:\Users\Admin\AppData\Local\Temp\f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe
"C:\Users\Admin\AppData\Local\Temp\f8b2f8244174469bdbfe33707835c03bd6dc0bddb4bbb7908b7224d15468f9b4.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3336

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-1-5-21-1302416131-1437503476-2806442725-1000\desktop.ini.tmp

Filesize
91KB

MD5
537c3293a52c709206e835f2f77962ca

SHA1
5675c46dd65a2f0a4f828d6887fdb5309c19a0ef

SHA256
997a761746a021e9540efc2c265c9b7b275371dd357eb1a3d4c80a6890eb9c59

SHA512
d9a3d252ad3b452d146b5e02c08f3342bf5a6ccda87533ae1c0d490df345d4e42b490c7a9dcaa997a25a8124c7a70e6e435fa7bdf606712a883da36b35d4799d

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

Filesize
189KB

MD5
8da1ee039a8fce3061c1bd379e0a70ee

SHA1
581a3eb724d52440c6f863ac15eb016fde4ede31

SHA256
83d576433ac6b702bd3d2c039354b50c6497ba7638b0cab7e1fb37a26fa40b24

SHA512
9f3619fe8b8d7c7f86e5cc77014085f4875f6ed9fca88c779de2095fd4c6082b64e5ecf1c2070cec0dd624399069c2ebcf452b7cc93d3a54305877322dc9f4f4

Download Submit
memory/3336-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3336-848-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download