97fa5f8416e5775013c3400b9dce787d16d654520606f437b1c27ccdc261523e

Analysis

max time kernel
120s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18-08-2024 01:38

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General

Target

ca9d1cdf39b3389cacaba679d22bb0a0N.exe
Size

91KB
MD5

ca9d1cdf39b3389cacaba679d22bb0a0
SHA1

cb72a161d4880209520b448375cf7cb11cd13713
SHA256

97fa5f8416e5775013c3400b9dce787d16d654520606f437b1c27ccdc261523e
SHA512

70cc57128f3a038c4f339cd518722429bd4062b392b5b69e719ea183a8ab006e44af1ad59730055ebd8d8ba41748e21b83ecfb39b2f978ffa74782e329acad49
SSDEEP

1536:V7Zf/FAxTWoJJZENTNyl2Sm0mdnwNRTW7JJZENTNyl2Sm0mdnwNc:fny1tE42rnwNatE42rnwNc

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4372) 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/2788-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000234b1-2.dat	upx
behavioral2/files/0x00080000000234b7-6.dat	upx
behavioral2/memory/2788-870-0x0000000000400000-0x000000000040B000-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	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Configuration.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\el.pak.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART8.BDR.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp3-ul-phn.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_MAK-ul-phn.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-synch-l1-1-0.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.IsolatedStorage.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationProvider.resources.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Permissions.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Internet Explorer\en-US\iexplore.exe.mui.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription2-ppd.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ul-phn.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Grace-ppd.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebHeaderCollection.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\UIAutomationClient.resources.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\pack200.exe.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\charsets.jar.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial-ul-oob.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.DispatchProxy.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\PresentationCore.resources.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\policytool.exe.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\IpsPlugin.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebProxy.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\PresentationUI.resources.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\GKPowerPoint.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\clretwrc.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_MAK_AE-ppd.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\da-DK\tipresx.dll.mui.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Common Files\System\ado\msado27.tlb.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.TypeExtensions.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Drawing.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome.dll.sig.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\hprof.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationUI.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_MoveNoDrop32x32.gif.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-synch-l1-1-0.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_OEM_Perp-ul-oob.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-phn.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTrial-ppd.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_MAK-ul-phn.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\7-Zip\Lang\yo.txt.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskmenu\oskmenubase.xml.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationClient.resources.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vcruntime140_1.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Times New Roman-Arial.xml.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.PowerPivot.PowerPivot.x-none.msi.16.x-none.xml.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\UIAutomationTypes.resources.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProMSDNR_Retail-ul-phn.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_MAKC2R-ppd.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\splash.gif.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfxmedia.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\UIAutomationTypes.resources.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationTypes.resources.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-convert-l1-1-0.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ucrtbase.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\server\jvm.dll.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription5-ul-oob.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-ppd.xrm-ms.tmp	ca9d1cdf39b3389cacaba679d22bb0a0N.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	ca9d1cdf39b3389cacaba679d22bb0a0N.exe

C:\Users\Admin\AppData\Local\Temp\ca9d1cdf39b3389cacaba679d22bb0a0N.exe
"C:\Users\Admin\AppData\Local\Temp\ca9d1cdf39b3389cacaba679d22bb0a0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2788

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-1-5-21-2718105630-359604950-2820636825-1000\desktop.ini.tmp

Filesize
91KB

MD5
3f4d80e9c7a9aa5bcf3b15ea9093ccc1

SHA1
72453a10def2a73541b504d1dacb3d0d61547ca2

SHA256
dcb942685e513a4f337bcd2c506302842d7673c76f0a780b3ff431b7325da0aa

SHA512
eaec60bd721576525bcef8f10fec9249b0424983eb2a9710dcf3922c73449b3684b6bef97a3efc274cd05352409840e8eff100f243223dab796b993a935e9274

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

Filesize
190KB

MD5
7c701c2f42c42b36e0e69b423408bc93

SHA1
632e492e658b43579523be326317b0c63ddc9c5e

SHA256
ccada28f6a0fe8da0ff309e17bcf177a404b7ec3d3b4659a23a434fc14eb9d1d

SHA512
2641a283bf3df912354fb878327446b46f4ca494165db9ba54e06e39a9c0a94e3443852c9796dfb084742209d0b511a0296d59afacf7ff313e051859e9aeb3f4

Download Submit
memory/2788-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2788-870-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download