a90489de733f79dcd0f39fd14d37aeaef37b11ca40a5752e3a48239c684a933d

Analysis

max time kernel
120s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2024, 14:05

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General

Target

d6d63be18cc68af69dbaddf66cb1d960N.exe
Size

81KB
MD5

d6d63be18cc68af69dbaddf66cb1d960
SHA1

396e34ab8e05779dc31c63ebac89c498a1de0985
SHA256

a90489de733f79dcd0f39fd14d37aeaef37b11ca40a5752e3a48239c684a933d
SHA512

10e29001b84595c3916949680a3e80716399c4b284a6b2c2390dc1d5dab8cb0c0a96677b6b8fa7fe8207cc2c3bab0b7d527be23550ac734f4551bb523bd8569c
SSDEEP

1536:W7ZhA7pApvOsOKjv46Ov46MbRsjaVZP7iNpW0/137qSez/P:6e7WpPRsjacpW0/5ZebP

Score

9^/10

discovery ransomware

Malware Config

Signatures

Renames multiple (4653) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Executes dropped EXE 2 IoCs

pid	Process
696	Zombie.exe
4212	_MofCompiler.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Zombie.exe	d6d63be18cc68af69dbaddf66cb1d960N.exe
File opened for modification	C:\Windows\SysWOW64\Zombie.exe	d6d63be18cc68af69dbaddf66cb1d960N.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\ca.txt.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.th-th.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\concrt140.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Input.Manipulations.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\PresentationUI.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\bin\javacpl.cpl.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_logo_large.png.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\coreclr.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\UIAutomationTypes.dll.tmp	Zombie.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\lv.pak.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfxswt.jar.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\[email protected]	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OneNote.OneNote.x-none.msi.16.x-none.xml.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\mshwLatin.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\GroupCompress.dib.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\PowerPivotExcelClientAddIn.tlb.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp140.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\ReachFramework.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Trial-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.OpenSsl.dll.tmp	Zombie.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\en-GB.pak.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Office.Interop.Excel.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSO0127.ACL.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Controls.Ribbon.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\public_suffix.md.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Grace-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription5-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Grace-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Interceptor.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-80.png.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Mail.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationClientSideProviders.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Forms.Primitives.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Retail-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymxb.ttf.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationClientSideProviders.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Forms.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-ul-phn.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial2-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WWINTL.DLL.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Models.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\zipfs.jar.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\InkObj.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-conio-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.NETCore.App.deps.json.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Drawing.Primitives.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Cryptography.Pkcs.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\UIAutomationClientSideProviders.dll.tmp	Zombie.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\zh-CN.pak.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription5-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_OEM_Perp-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\pt\msipc.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\7-Zip\Lang\az.txt.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ro-ro.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationTypes.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Controls.Ribbon.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial2-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-80.png.tmp	Zombie.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	d6d63be18cc68af69dbaddf66cb1d960N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Zombie.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 696	2020	d6d63be18cc68af69dbaddf66cb1d960N.exe	84
PID 2020 wrote to memory of 696	2020	d6d63be18cc68af69dbaddf66cb1d960N.exe	84
PID 2020 wrote to memory of 696	2020	d6d63be18cc68af69dbaddf66cb1d960N.exe	84
PID 2020 wrote to memory of 4212	2020	d6d63be18cc68af69dbaddf66cb1d960N.exe	85
PID 2020 wrote to memory of 4212	2020	d6d63be18cc68af69dbaddf66cb1d960N.exe	85

C:\Users\Admin\AppData\Local\Temp\d6d63be18cc68af69dbaddf66cb1d960N.exe
"C:\Users\Admin\AppData\Local\Temp\d6d63be18cc68af69dbaddf66cb1d960N.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\Zombie.exe
  "C:\Windows\system32\Zombie.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  PID:696
- C:\Users\Admin\AppData\Local\Temp\_MofCompiler.exe
  "_MofCompiler.exe"
  2⤵
  - Executes dropped EXE
  PID:4212

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-1-5-21-384068567-2943195810-3631207890-1000\desktop.ini.tmp

Filesize
59KB

MD5
92bcc6a0f4c8179869fa0b4ec55d39da

SHA1
563df1884f73ac8692754a044e6c1d9ac3a02ed2

SHA256
15d765d5a1f845d208264764cb667c0f25c120b9d258a0091c8f3b9277be4522

SHA512
18233427e2700bde610c8c11e84b2c9e4b07223a69054d3bb3621944f7e7d19c218170de210fefc48f9860a0d6291ecf3afc9a960fe9672b7a144d307d9a16d5

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MofCompiler.exe

Filesize
21KB

MD5
0fe6e0e01318f2a27ece0176423ea4f8

SHA1
71cf6aaa4a88a2e892ce113fe35518441a58a97d

SHA256
36217b7c4ac6aabc74a7f9d0d8da2002f5909d1d6dcb663c9cb1ec2c02a387b3

SHA512
56be67fcf76f46a171c0ebcaa988e1e20cdba5fa91871e076b424b0b9bdd21219a19ca70c85314e5a79c1f878b7f68d7e51596b49536296e41ded5846158ac9b

Download Submit
C:\Windows\SysWOW64\Zombie.exe

Filesize
58KB

MD5
59448fb9af494fd550a9084414bef1e4

SHA1
8cf9a4d575e5ca391eb879fbca33676407173ab4

SHA256
b8ecaa72714b0ab31396060d16bc5d62d2fd7f80ffb360ba27a225a24114bbe8

SHA512
92d71d9120651b188af47471331e1e807b186509216ce2b58dc7f5a5cdb345c00087119aeaee56972b0479f081818aa35e641d3ed42af6cba0f9ee37ea5d250e

Download Submit
memory/4212-14-0x00000200AC000000-0x00000200AC00A000-memory.dmp

Filesize
40KB

Download
memory/4212-11-0x00007FFE23A63000-0x00007FFE23A65000-memory.dmp

Filesize
8KB

Download