9fd22a8de288bdba40c8f8b07399b6dcf2adc2a629e6f74cfe92206e94c097a1

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/09/2024, 21:37

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General

Target

8d1579c7c8481375d2b746479c766560N.exe
Size

49KB
MD5

8d1579c7c8481375d2b746479c766560
SHA1

fa28e8ef93968d75f947d56c96ec42da4cb20d7a
SHA256

9fd22a8de288bdba40c8f8b07399b6dcf2adc2a629e6f74cfe92206e94c097a1
SHA512

df135aba91d76c6f4235b580b143499ed7ef959b4bef756a5f3253d0a66c7c0de5f75c20d439976aba04c215f265d9bfc9ee02021e05dd171e43675b0d3254b9
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9DJKGJK9/eMWMe:V7Zf/FAxTWoJJ7ThJKGJKjhe

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4678) 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/1048-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233cb-2.dat	upx
behavioral2/files/0x0014000000022912-6.dat	upx
behavioral2/memory/1048-914-0x0000000000400000-0x000000000040B000-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\zh-Hant\UIAutomationClient.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\UIAutomationClientSideProviders.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ssv.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ul-phn.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_MAK_AE-ppd.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-heap-l1-1-0.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-black_scale-100.png.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Resources.Writer.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\System.Windows.Forms.Primitives.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\zipfs.jar.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription5-ppd.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WacLangPack2019Eula.txt.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\IGX.DLL.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\7-Zip\Lang\ro.txt.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebHeaderCollection.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-process-l1-1-0.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jre-1.8\bin\decora_sse.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription5-ppd.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\he-IL\tipresx.dll.mui.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsnor.xml.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\ReachFramework.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jre-1.8\bin\servertool.exe.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Grace-ppd.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-pl.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\uk-UA\msinfo32.exe.mui.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msdaremr.dll.mui.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.PowerPoint.PowerPoint.x-none.msi.16.x-none.xml.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-ppd.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.ReportingServices.DataExtensions.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientCapabilities.json.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Common Files\System\msadc\en-US\msaddsr.dll.mui.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\DismountOpen.vsdx.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Extensions.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationTypes.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\WindowsBase.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Presentation.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-sysinfo-l1-1-0.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_KMS_Client-ul.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Mail.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management-agent.jar.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_KMS_Client-ppd.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Forms.Design.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\instrument.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Localytics.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Emit.ILGeneration.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationFramework.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription5-ul-oob.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\AccessRuntime_eula.txt.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Data.OData.Query.NetFX35.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Input.Manipulations.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\v8_context_snapshot.bin.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Java\jre-1.8\bin\sspi_bridge.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial5-pl.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshe.xml.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Principal.Windows.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\LogoDev.png.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Retail-ul-oob.xrm-ms.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\7-Zip\Lang\ky.txt.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Metadata.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\PresentationCore.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\ReachFramework.resources.dll.tmp	8d1579c7c8481375d2b746479c766560N.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	8d1579c7c8481375d2b746479c766560N.exe

C:\Users\Admin\AppData\Local\Temp\8d1579c7c8481375d2b746479c766560N.exe
"C:\Users\Admin\AppData\Local\Temp\8d1579c7c8481375d2b746479c766560N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1048

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-1-5-21-786284298-625481688-3210388970-1000\desktop.ini.tmp

Filesize
50KB

MD5
4db8ad8c9f2a181d6766e41e0a5da243

SHA1
6a44dd3e579f893da09801c24863085b06d5297a

SHA256
26b1ad344aa34b11b2c5bc93881070ced5a785d4a30642c65c3624c389f0dcb0

SHA512
3a237c259ff1671348795a5aab558828dc9dc545d7944a76e609edca91cf84b4e9b1272dc5c13c24903fa1a43298da3c05c83430c04c51208341b5802001543f

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

Filesize
149KB

MD5
2160b5b2ea543ad4dc0d25c1b00c3de2

SHA1
d1db73b1d8213c71b03f08ab1432abffe46f8446

SHA256
30a14d02b9974147a62585e718cbab62b8c22cad84494209a394f230af9bcb1c

SHA512
b99932defd4b7c7aad2a601a5d6f1faad086b167ec7811f68b4a105e4b01a0295c8aa2bfa666e0459ab698311630b7e37879f05a858581d3019015c883df74e4

Download Submit
memory/1048-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1048-914-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download