478a367cb6cd485a1a37cb41af5aa544f15f39f87d514ff3876b610af9407fb7

Analysis

max time kernel
120s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 21:50

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General

Target

1291ac38b9a208dbb5a639c405a3ae50N.exe
Size

47KB
MD5

1291ac38b9a208dbb5a639c405a3ae50
SHA1

ddb63e7a3be3c47cb7a623a001a3eaea7b38fee8
SHA256

478a367cb6cd485a1a37cb41af5aa544f15f39f87d514ff3876b610af9407fb7
SHA512

6207fc1f98b840b4a10dbc674740d8dfb5989fbb842a14ed3b9f593fcc53cbc2fb5924c65e3c78d077755389c4a8872e11a2c1b27afba7b27e76b574082a4a60
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcH:V7Zf/FAxTWoJJ7Ty

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4655) 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/3572-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233e5-2.dat	upx
behavioral2/files/0x000400000002291b-6.dat	upx
behavioral2/memory/3572-850-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Contracts.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jre-1.8\lib\flavormap.properties.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jre-1.8\lib\tzmappings.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Forms.Design.resources.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Resources.Extensions.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\dcpr.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-pl.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_MAK-pl.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.scale-140.png.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-white_scale-180.png.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsel.xml.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\public_suffix_list.dat.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jre-1.8\bin\sunec.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_KMS_Client-ppd.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProMSDNR_Retail-ppd.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\IVY.DLL.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Loader.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jar.exe.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest2-pl.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_OEM_Perp-pl.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.Primitives.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial3-ppd.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-ppd.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-synch-l1-2-0.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-runtime-l1-1-0.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp3-pl.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_MAK-ul-phn.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskmenu\oskmenubase.xml.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\TipRes.dll.mui.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Trial-ul-oob.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_F_COL.HXK.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lt-lt.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\WindowsFormsIntegration.resources.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\jpeg_fx.md.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ppd.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientEventLogMessages.man.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.ReaderWriter.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-ul-oob.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\bridge\AccessBridgeCalls.c.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\xmlresolver.md.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Constantia-Franklin Gothic Book.xml.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial2-ppd.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Common Files\System\ado\msader15.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Common Files\System\Ole DB\oledb32r.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Tracing.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationProvider.resources.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ul-phn.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-oob.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.dcfmui.msi.16.en-us.xml.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ul-oob.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription2-pl.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Common Files\System\Ole DB\en-US\oledb32r.dll.mui.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\PresentationFramework.resources.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\sunjce_provider.jar.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.NonGeneric.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.AppContext.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Forms.resources.dll.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Java\jre-1.8\bin\servertool.exe.tmp	1291ac38b9a208dbb5a639c405a3ae50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessRuntime2019R_PrepidBypass-ppd.xrm-ms.tmp	1291ac38b9a208dbb5a639c405a3ae50N.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	1291ac38b9a208dbb5a639c405a3ae50N.exe

C:\Users\Admin\AppData\Local\Temp\1291ac38b9a208dbb5a639c405a3ae50N.exe
"C:\Users\Admin\AppData\Local\Temp\1291ac38b9a208dbb5a639c405a3ae50N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3572

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
47KB

MD5
6d0222d5676bc4f9aee11bf94122e518

SHA1
11451d87c635d255579ebdef88bec06620c32b81

SHA256
c6d1670c25bb1aaf7addba3a14fe59c7b3d3734b37cf7a1ce55ed0ac57fb2769

SHA512
e01026bc2d8a22229bbddd2e31cd4775c8991108e822fe42bf7a03e96909874dabe97d8a9acffa63bca52f8322a6172dce08f5df91b6823166abcadb14a0afdf

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

Filesize
146KB

MD5
b9d228ed70642ef54070585727654ca6

SHA1
f3db60fed7d4db829f00cb0b1f5841a31fe6fc27

SHA256
d11c5c1dd9f7b321172dfff028aadb1ab3d54d77be804f54ea15f17744dd610c

SHA512
b616b10ec688e33214652ed0760e09d5ad5130cd5eedae50aa64ed589748800a1feec3185b8d9b29d13670a78218ecb8733f8197f219e1782ac82cdd40994cdc

Download Submit
memory/3572-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3572-850-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download