c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30/11/2024, 05:16

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General

Target

c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
Size

94KB
MD5

b50603db66413f03c2c2d396c1e05dc0
SHA1

9aa8417c78819573d421c08546e9386a814649f1
SHA256

c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643
SHA512

895c6903c4240af9edd75d06c68b9dec82d3e264745f12162f091a9938fc8410a91f25b908b018be71b6bb4f516f63729a381d2f6fa63fe38e077e244f8eea24
SSDEEP

1536:V7Zf/FAxTWoJJZENTBHfiP3zHQYL5HRXxkcKck:fny1tESQM5HRXxkBck

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4338) 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/1200-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000c000000023b54-2.dat	upx
behavioral2/files/0x001400000002291d-6.dat	upx
behavioral2/memory/1200-700-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_KMS_Client-ul.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.FileVersionInfo.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Handles.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XmlDocument.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\splash_11-lic.gif.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest3-ul-oob.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Trial-pl.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Interop.MSDASC.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\7-Zip\Lang\kaa.txt.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\7-Zip\Lang\uk.txt.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Ping.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\THIRDPARTYLICENSEREADME.txt.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems64.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-util-l1-1-0.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RInt.16.msi.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Retail-ul-phn.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_MAK-ul-phn.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-heap-l1-1-0.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Principal.Windows.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Forms.resources.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsBase.resources.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Forms.Primitives.resources.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Internet Explorer\es-ES\iexplore.exe.mui.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Retail-pl.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Cryptography.Pkcs.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vcruntime140.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Trial-pl.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\7-Zip\Lang\eu.txt.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\7-Zip\Lang\ky.txt.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sl-si.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\ReachFramework.resources.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ppd.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Trial-ul-oob.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Trial-ul-oob.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-localization-l1-2-0.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-timezone-l1-1-0.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ul-phn.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\Informix.xsl.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\concrt140.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\7-Zip\Lang\vi.txt.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\WidevineCdm\manifest.json.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Facet.thmx.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTest-ppd.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-ppd.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeServiceBypassR_PrepidBypass-ppd.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WacLangPackEula.txt.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libxslt.md.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Trial-pl.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_MAK_AE-ul-phn.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\7-Zip\Lang\sr-spc.txt.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\coreclr.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Contracts.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-libraryloader-l1-1-0.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\policy\unlimited\US_export_policy.jar.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Reflection.eftx.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTest-ppd.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.shared.Office.x-none.msi.16.x-none.xml.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Tasks.Extensions.dll.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ul-oob.xrm-ms.tmp	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.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	c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe

C:\Users\Admin\AppData\Local\Temp\c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe
"C:\Users\Admin\AppData\Local\Temp\c1d1f48f7d75faf372edc3d5142a459234e87963b6b7f9ceb60258f34ef27643N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1200

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-1-5-21-3756129449-3121373848-4276368241-1000\desktop.ini.tmp

Filesize
95KB

MD5
a472ec7187200fe87c816119f51652f9

SHA1
4235cc05ac88fcd00b6aedf63f857ca3e6a3548c

SHA256
05b013eb6a8cf6f721b18498d11d0a96567886e413bd117a4aa02960c4f91064

SHA512
eb09b8c33e0a0dd55b8c1026fbea023f444da526ae6fdd2c73932bc629c4689115031fbdac97563ffdb12102d097a63a320a8d1811c0fd841f6fc387b6302132

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

Filesize
193KB

MD5
70de1194c1af6f0273aef314a70e4468

SHA1
257fe523f5f9b2f0cd9e821a028665b03dedf359

SHA256
f65e3b07734aa411270d03760acfd5e64450a0ebfb76ef19fc7b800ec680c040

SHA512
cbae5e625af1ed6fd9ff38668ef77246e50b2adf158ff313f0571c984641d827c375d00f05581fdbe37c79d7b1a327402534797577bd682b0367de4cbe790bfa

Download Submit
memory/1200-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1200-700-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download