97ed86dfb48bf2d3efc0cfbef63dba2de2e7fd8089a1ed9b20d01528ac49886b

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
11/09/2024, 10:45

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General

Target

23893164ae08aff0728f1c4bdf6be170N.exe
Size

95KB
MD5

23893164ae08aff0728f1c4bdf6be170
SHA1

dd5e9591ab5b4490a6b58c76fe1016bab80a1dfb
SHA256

97ed86dfb48bf2d3efc0cfbef63dba2de2e7fd8089a1ed9b20d01528ac49886b
SHA512

b4a07ca309eb6ab65fb85d06475ea43627088ca6db5056bc6b90c94b991ff2a71c190d8e1de6cfae0391c7a8a683f7f80f38147c3ffb6e7af1ba05925ace1abf
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxY5DSKE/MVAF8hRrnjRuKy+yMBTNZHc:fnyiQSox5DSKE/MVAF8hRrnjRuKy+yMO

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4393) 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/1788-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b0000000233dc-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/1788-848-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\eo.txt.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-pl.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\7-Zip\Lang\ku.txt.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\7-Zip\Lang\sr-spl.txt.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-interlocked-l1-1-0.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fontconfig.properties.src.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_KMS_Client-ul-oob.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\XLSLICER.DLL.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\System.Windows.Input.Manipulations.resources.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sv.pak.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial2-ppd.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\excel.exe.manifest.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Forms.Design.resources.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\icu.md.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\sRGB.pf.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Subscription-ppd.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\en\LocalizedStrings.xml.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.DataWarehouse.Interfaces.DLL.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\7-Zip\Lang\fur.txt.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\PresentationUI.resources.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msdaprsr.dll.mui.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.RegularExpressions.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\PresentationCore.resources.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_MAK-ppd.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\relaxngcc.md.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-ul-oob.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH.HXS.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.id-id.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Web.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-utility-l1-1-0.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Modeler.UI.rll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Input.Manipulations.resources.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-processthreads-l1-1-1.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\PresentationUI.resources.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-process-l1-1-0.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\plugin.jar.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javaws.exe.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Grace-ppd.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-pl.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Xml.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XDocument.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemDrawing.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\icu.md.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTrial-pl.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsjpn.xml.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.CodePages.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\Microsoft.VisualBasic.Forms.resources.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\WindowsAccessBridge-64.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Cambria.xml.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_OEM_Perp-ul-oob.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Trial-ul-oob.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.ReportingServices.Diagnostics.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\kor-kor.xml.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.NETCore.App.deps.json.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Design.resources.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l2-1-0.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\System.Windows.Forms.Design.resources.dll.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-ppd.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_KMS_Client_AE-ul.xrm-ms.tmp	23893164ae08aff0728f1c4bdf6be170N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe.tmp	23893164ae08aff0728f1c4bdf6be170N.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	23893164ae08aff0728f1c4bdf6be170N.exe

C:\Users\Admin\AppData\Local\Temp\23893164ae08aff0728f1c4bdf6be170N.exe
"C:\Users\Admin\AppData\Local\Temp\23893164ae08aff0728f1c4bdf6be170N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1788

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
95KB

MD5
926d9bfedb9a4cd7a5da099957aacf2f

SHA1
d16e8980aaecea82742ced4a1d43e3f797a67c6d

SHA256
87e3d1dca4a4b5a210c98d1b4df7c7b5ccc26125ffd6f9e90072b9242303532a

SHA512
aab7640f5b784fda6b7d5e26ecd339a9671c56ebdb8f6d411f61a3b51d5e2ac8f2134951af292ca004e2922bf6a2e49def63527031cbf46b2f51613df6ad4b3e

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

Filesize
194KB

MD5
a4248206a9f9bea54de12935048a1a6a

SHA1
cf0d9b17e4ab110be5c2416d86129640a22d43d0

SHA256
0d5a804d922235be726c80180dae912419d80e789ca557fe2a39043ed451b3b2

SHA512
092cf425d2b0afaf0d0f59011c4b703a225276f23c094186f771ee728488d3bff102414ba093b9c2deed298cb9ecb18f88a32f00f967e3cbd5994cbba1ad06ae

Download Submit
memory/1788-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1788-848-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download