44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01da

Analysis

max time kernel
120s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/09/2024, 22:31

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General

Target

44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
Size

38KB
MD5

3a2fdcdca92fdefa00dd318df5125a20
SHA1

e38b37ba0c11f18ed1cfb85ba197d6b813819ee0
SHA256

44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01da
SHA512

6c6dc5f9058cc57953a75ecb7997f4cb3d896760778efe6cf26f046e8b1f44423f7948d5a010d6a7d899634ea85005590f964ca4642946ac5cd27a0aaad90a2d
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATBaMYhOzB8:CTW7JJZENTBTYhQ8

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4625) 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/544-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0009000000023462-2.dat	upx
behavioral2/files/0x00080000000234cc-6.dat	upx
behavioral2/memory/544-854-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\da.pak.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_MAKC2R-ppd.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\cacerts.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeExcel.nrr.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\tracedefinition130.xml.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Serialization.Xml.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\ReachFramework.resources.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\nashorn.jar.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.DriveInfo.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\netstandard.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\UIAutomationClient.resources.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\cldrdata.jar.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\7-Zip\Lang\fr.txt.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClientIsv.man.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Principal.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Retail-ul-oob.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Retail-pl.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jre-1.8\bin\JavaAccessBridge-64.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Grace-ul-oob.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp3-ul-phn.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\C2R64.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad.xml.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr\profile.jfc.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_Grace-ppd.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Http.Json.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Requests.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\accessibility.properties.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jre-1.8\bin\msvcp140_1.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Trial-ppd.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_MAK_AE-ul-phn.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lv-lv.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sk-sk.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\WindowsBase.resources.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ServiceWatcherSchedule.xml.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\public_suffix_list.dat.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Retail-pl.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\UIAutomationProvider.resources.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTest-pl.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOMessageProvider.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\UIAutomationProvider.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\ReachFramework.resources.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\7-Zip\7zCon.sfx.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Formats.Tar.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\Microsoft.VisualBasic.Forms.resources.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Data.Recommendation.Client.Picasso.Sampler.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-100.png.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipskor.xml.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationTypes.resources.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jre-1.8\bin\splashscreen.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_ko.properties.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Grace-ul-oob.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msadcer.dll.mui.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Http.Json.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\javafx_font.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jre-1.8\bin\net.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_MoveNoDrop32x32.gif.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_KMS_Client-ppd.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ppd.xrm-ms.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.OpenSsl.dll.tmp	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.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	44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe

C:\Users\Admin\AppData\Local\Temp\44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe
"C:\Users\Admin\AppData\Local\Temp\44c2b8fea18413332d67d3f9befd1d152be00ad50805d835348b8e4d8d3a01daN.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:544

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-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

Filesize
38KB

MD5
29592bf2385e173ff4718ed8b6c3f1b1

SHA1
acfcb4c81b8faea6da7cc6070b134139bbb967cb

SHA256
803a6b24b449a7108f8ccb8bc289d0dc2252a42847217df84798368ed9fc518e

SHA512
5d5d24d7b030110d6b40b0bad01d45208adc7e4d2f4d59a499dd55cc3ccfbafaf0123875db9142a2a4ceedc53dade0a3988c54861c5e366f2414a21302cd3724

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

Filesize
137KB

MD5
0648960bdd34da69f4d265d6cb7a4671

SHA1
a7b92146cba869fd0520661366d758fc20b9836c

SHA256
adc06d73e3bc0945c5501100c012cbee86807cc0a477513c102c5058d308db8d

SHA512
5cab0a8c76557901510cc0b6998091d06385bacc989fcc6e3d9186e1253776c97e9af73ba6224caac7a52c76720d20f716ac3e448fb21044f2601239ef8f3e0b

Download Submit
memory/544-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/544-854-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download