705af9025eef175c5b6eac58ba8e66cf1b91250f083cad8fc52761259b38eab4

Analysis

max time kernel
120s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 20:35

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General

Target

9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
Size

54KB
MD5

9855a3dfb0bc4e12bc83c76aa0b482f0
SHA1

7e6f9959698742b173b31af45dfda6e0c5b39103
SHA256

705af9025eef175c5b6eac58ba8e66cf1b91250f083cad8fc52761259b38eab4
SHA512

e051eefb4e02ec91e50124f7788e905f8302e6e7582fd60d64a151fe7b9e57e48dd0c55b54282b6d03d7521580886fed7b5d3a43683f52a86df8ed4bf4a02542
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9DJKGJKTn/bYONYOR:V7Zf/FAxTWoJJ7ThJKGJKz

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4627) 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/2936-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b0000000234b3-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/2936-828-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\cpprestsdk.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\UIAutomationClientSideProviders.resources.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\jpeg.md.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-process-l1-1-0.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\policy\limited\local_policy.jar.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.Encoding.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\UIAutomationClient.resources.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ms.pak.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jdk-1.8\include\jni.h.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-pl.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Data.Edm.NetFX35.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.scale-140.png.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\basicsimple.dotx.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\.version.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\UIAutomationClient.resources.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\vccorlib140.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial-ul-oob.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription2-ul-oob.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_Subscription-ul-oob.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Grace-ppd.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\linesstylish.dotx.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\management.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-interlocked-l1-1-0.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\jvm.hprof.txt.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Paper.xml.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\InputPersonalization.exe.mui.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javah.exe.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SkypeForBusinessVDI2019_eula.txt.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\msdasqlr.dll.mui.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Accessibility.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail2-ppd.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\nl\msipc.dll.mui.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.Encoding.Extensions.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_OEM_Perp-pl.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Retail-ppd.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\MSOSEC.DLL.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sl-si.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.VisualBasic.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Forms.Primitives.resources.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\decora_sse.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CHART.DLL.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOLoader.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationTypes.resources.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javaw.exe.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Trial-pl.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.AppContext.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTrial-ppd.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Serialization.Json.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.TypeExtensions.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jp2iexp.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\blacklisted.certs.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\xerces.md.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHPHN.DAT.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.EventSource.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription2-ul-oob.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Grace-ppd.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\7-Zip\Lang\it.txt.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Ping.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationUI.resources.dll.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Retail-ul-phn.xrm-ms.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Document Parts\1033\16\Built-In Building Blocks.dotx.tmp	9855a3dfb0bc4e12bc83c76aa0b482f0N.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	9855a3dfb0bc4e12bc83c76aa0b482f0N.exe

C:\Users\Admin\AppData\Local\Temp\9855a3dfb0bc4e12bc83c76aa0b482f0N.exe
"C:\Users\Admin\AppData\Local\Temp\9855a3dfb0bc4e12bc83c76aa0b482f0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2936

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
54KB

MD5
3f75e257cad71b4227d16a01ad4d2e54

SHA1
46ef80c429ef3108efa8725479740bbe4c891710

SHA256
837d2cf98c467d41118f5e4de01918f701d612b2ca3c457dec0001ccf204e66b

SHA512
a43d399b6209fd0903b6a8ab78455aa64d231f7e01566645ce02b420953d9b8841f2c4a9652e8b42224c6ca38cafe4eec1802c7c28c929eb4826502253274769

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

Filesize
153KB

MD5
0702a1cdea531d3d45624da125dfb931

SHA1
ff1e7a68d1cc36c5ac77781da8db55d771647c97

SHA256
5e60198f75984d515b55698ac11ef107ad845cf4cffb4c94ad07d709785a7b6f

SHA512
551aeb794cf47abd5af65520685bed69adaae9af6d0abeeb4dde2be6f4e79fc515531d77c9262ec9155a8f7dc7304b7f451e9575330a537c42e81d7236c266f8

Download Submit
memory/2936-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2936-828-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download