7698f5b35b8fd891e2b36cd64ab6e50916d91d029872d92e8d9891c4be52ebd8

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2024, 03:01

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General

Target

8760ccb3d073a0caa863eaf6881f80b0N.exe
Size

27KB
MD5

8760ccb3d073a0caa863eaf6881f80b0
SHA1

0f91972feb91c44bb09b287d39f90ce232eb1125
SHA256

7698f5b35b8fd891e2b36cd64ab6e50916d91d029872d92e8d9891c4be52ebd8
SHA512

4546500b04f809c267f045e3c1c041cf269c8a6c7c1b4fd772229203ba16bd21faa6abc2f16ebb5a26284ed7affdaa08f1b5174ff17ff98949dd4fdbab79c511
SSDEEP

384:QOlIBXDaU7CPKK0TIhfJJ1Evd5BvhzaM9mSIEvd5BvhzaM9mSsxmMxm9+9oRf:kBT37CPKKdJJ1EXBwzEXBwdcMcI9oRf

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4676) 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/5076-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233cc-2.dat	upx
behavioral2/files/0x0004000000022922-6.dat	upx
behavioral2/memory/5076-1010-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\VISUALIZATIONCHART.DLL.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Controls.Ribbon.resources.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\relaxngom.md.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\[email protected]	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\jfr\profile.jfc.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\dt_shmem.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_zh_HK.properties.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Green.xml.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ppd.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\7-Zip\Lang\ca.txt.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\ShapeCollector.exe.mui.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-datetime-l1-1-0.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.DataAnnotations.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msotd.exe.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ViewOnly_ZeroGrace-ppd.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-ul-oob.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SETLANG_K_COL.HXK.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_FA000000011\FA000000011.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOSTYLE.DLL.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Parallel.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\PresentationFramework.resources.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Diagnostics.EventLog.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Excel.Common.FrontEnd.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest4-pl.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp2-ul-oob.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ru-ru.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\TipTsf.dll.mui.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Xaml.resources.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\eula.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\XLINTL32.DLL.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Channels.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\UIAutomationProvider.resources.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription-ppd.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Grace-ppd.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\Microsoft.VisualBasic.Forms.resources.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\pt-PT.pak.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Grace-ppd.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.onenotemui.msi.16.en-us.xml.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Grace-ppd.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\TipRes.dll.mui.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshe.xml.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Windows.Forms.resources.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\JavaAccessBridge-64.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Common Files\System\msadc\msdfmap.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Sort\TAG.XSL.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVManifest.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.ReaderWriter.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Diagnostics.EventLog.Messages.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Retail-ppd.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\xerces.md.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription5-ppd.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp-ul-oob.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp6-pl.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Primitives.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.X509Certificates.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\ReachFramework.resources.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\unicode.md.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ul-oob.xrm-ms.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\Client2019_eula.txt.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\UIAutomationClient.resources.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\System.Windows.Controls.Ribbon.resources.dll.tmp	8760ccb3d073a0caa863eaf6881f80b0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\splash_11-lic.gif.tmp	8760ccb3d073a0caa863eaf6881f80b0N.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	8760ccb3d073a0caa863eaf6881f80b0N.exe

C:\Users\Admin\AppData\Local\Temp\8760ccb3d073a0caa863eaf6881f80b0N.exe
"C:\Users\Admin\AppData\Local\Temp\8760ccb3d073a0caa863eaf6881f80b0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5076

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-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini.tmp

Filesize
27KB

MD5
1ac342fd2ab6dd94d60c88e7aa466367

SHA1
a2799cf1eb3eb4291e2f871c35640742f7c4af4b

SHA256
2971b87fa691f2bf5a9b7dc8881a0c6340b5bd7814b6d57efa46bb6610c1e7f2

SHA512
8e05396c7593a00133fe2afb1c969b3281fc27a544f4139426020e0190e843e2688548bb8e198fa412b6c3641c1d4169886fb9aba1dcb4f8bdb6f21a89d1150b

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

Filesize
126KB

MD5
57a7dd9ae038733c8a4f1ef8811dce98

SHA1
ae4dcd901539934d59e7e51d49510857be90765f

SHA256
5ee99d044b71162ec0d3bc080180bd44dd0c107cfd0c5f6260e7df033368e3bd

SHA512
7cf28cce6c62eef0f3ad79dc86cf23afcbd3826adcae6b217de5b2f1ad617dc294982cdb71ca9dd8885ac857d3ed43aa9446c2367f3d2e06a9ed915a7aadcead

Download Submit
memory/5076-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/5076-1010-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download