798b3d1ad07462d5786c57a0bbba2a146e3f625f64cb9b3e4f28bd8c9ff5b7b2

Analysis

max time kernel
119s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 22:24

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General

Target

3d8dc3bfc71495354bada56d44ec6ac0N.exe
Size

48KB
MD5

3d8dc3bfc71495354bada56d44ec6ac0
SHA1

225e494727cbe74dc2abea9a4451932b1acec7e4
SHA256

798b3d1ad07462d5786c57a0bbba2a146e3f625f64cb9b3e4f28bd8c9ff5b7b2
SHA512

9775343506cf5eea7995121c16c37e77daec7bf7a6b9d6d8ccb95031a547e394a66773ac5a346b2557199b576b491242cdcb2bb325aebb823318107d4b8fd9ea
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9S/3/d/3/J:V7Zf/FAxTWoJJ7TsvlvR

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4668) 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/4620-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233ff-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/4620-908-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ul-oob.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\UIAutomationProvider.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jjs.exe.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial2-ul-oob.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Resources.Reader.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\CIEXYZ.pf.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial-pl.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-white_scale-100.png.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\es-ES\oledb32r.dll.mui.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-time-l1-1-0.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.Win32.Registry.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_expiration_terms_dict.txt.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp2-pl.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_Subscription-pl.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\Invite or Link.one.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Century Gothic.xml.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-pl.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebSockets.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.CoreLib.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\public_suffix.md.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\APPLAUSE.WAV.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\it\msipc.dll.mui.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\ffjcext.zip.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp2-ul-phn.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-140.png.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.WindowsDesktop.App.deps.json.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART8.BDR.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\System.Windows.Forms.resources.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jp2iexp.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.PPT.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.TypeExtensions.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.CompilerServices.Unsafe.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\UIAutomationProvider.resources.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ul-oob.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-locale-l1-1-0.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Transactions.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfxmedia.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Xaml.resources.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\[email protected]	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-pl.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PowerPointNaiveBayesCommandRanker.txt.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_fr.properties.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-phn.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Grace-ppd.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTest-ul-oob.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemXml.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Internet Explorer\fr-FR\iexplore.exe.mui.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\bridge\AccessBridgeCalls.c.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Extensions.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-ppd.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mce.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\jpeg.md.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-0409-1000-0000000FF1CE.xml.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-100.png.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-pl.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019MSDNR_Retail-ul-phn.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Retail-ppd.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-pl.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial-ppd.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16EnterpriseVL_Bypass30-ppd.xrm-ms.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\WindowsFormsIntegration.resources.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jfr.dll.tmp	3d8dc3bfc71495354bada56d44ec6ac0N.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	3d8dc3bfc71495354bada56d44ec6ac0N.exe

C:\Users\Admin\AppData\Local\Temp\3d8dc3bfc71495354bada56d44ec6ac0N.exe
"C:\Users\Admin\AppData\Local\Temp\3d8dc3bfc71495354bada56d44ec6ac0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4620

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-1-5-21-945322488-2060912225-3527527000-1000\desktop.ini.tmp

Filesize
48KB

MD5
80988124fd71eef4b7a06b027df0c7c6

SHA1
812456ab2deb9fcd3d26f109e0ebe61b58d3ffdc

SHA256
615a5829c207eb0882bc4ef3bc2fe2ff1f5859e42de79901c3ff882f261cf63b

SHA512
2a8fe9e927a7b8339ee513b617d9440d585790916b0a5ffe6ba9016db81e1b36a7a00a4eb085a88475b69fd3bdb87ef5cf682cc120f8afb53950ceb61cd334cf

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

Filesize
147KB

MD5
2ca79c3f3e089b412bb9c45093eb4b68

SHA1
01cd8f2cbac1e0aef47a216ab401eed8386c724d

SHA256
375a96e657b4f7bc0ac7e599e8901f21a7def84439990a90e1dc323ec0d60366

SHA512
fcb4720844b80827819aa89c040bee5f659399e2cdd130359f7b39f41856e7e1de74cadcec78d7535d088c4a9a310d9b6e8f084468a82fa098e0f7a68bbdd7e2

Download Submit
memory/4620-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4620-908-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download