ea7e34d6c49c3b9be3861cbe39b7c746c7e2d2cd631bcc5ee3d185193d6b949b

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
11/09/2024, 13:59

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General

Target

9a138c1bac186a5e643293702295ad00N.exe
Size

2.4MB
MD5

9a138c1bac186a5e643293702295ad00
SHA1

ca31edeb2d441c5e1d073e380733ae21b8eee204
SHA256

ea7e34d6c49c3b9be3861cbe39b7c746c7e2d2cd631bcc5ee3d185193d6b949b
SHA512

ead5169842a5c39e5e84ea0de976d366002dd1b40a2750904760938859137a6cc4d259b9f51ec83be18fc2c2f97e9f9a0e5f9c84605906d329ede725388f03a5
SSDEEP

49152:qGlWC3YlQt8CWVQ7VFGogWAcF8jH7VaOtXc9:cQ3YI+K

Score

9^/10

discovery ransomware

Malware Config

Signatures

Renames multiple (4587) 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
1876	Zombie.exe
3380	_NisSrv.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Zombie.exe	9a138c1bac186a5e643293702295ad00N.exe
File opened for modification	C:\Windows\SysWOW64\Zombie.exe	9a138c1bac186a5e643293702295ad00N.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.TraceSource.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\ssn_high_group_info.txt.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\rtscom.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\UIAutomationTypes.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\colorimaging.md.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\[email protected]	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_SubTrial-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-debug-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ucrtbase.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription2-ul-oob.xrm-ms.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\Office16\LogoImages\FirstRunLogo.contrast-white_scale-100.png.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\insert\insertbase.xml.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\bin\server\classes.jsa.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\.version.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jvm.lib.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-3101-0000-1000-0000000FF1CE.xml.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-black_scale-100.png.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Contracts.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe.tmp	Zombie.exe
File created	C:\Program Files\7-Zip\Lang\hr.txt.tmp	Zombie.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\MEIPreload\preloaded_data.pb.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOMessageProvider.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationClientSideProviders.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\PresentationCore.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\pt-BR.pak.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-locale-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\InputPersonalization.exe.mui.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\jfxrt.jar.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.scale-80.png.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsrus.xml.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Handles.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\UIAutomationTypes.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Forms.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Retail-ul-phn.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_OEM_Perp-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-white_scale-80.png.tmp	Zombie.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msaddsr.dll.mui.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\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\System.ValueTuple.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-file-l1-2-0.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Http.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.NetworkInformation.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.CodePages.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationProvider.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_CopyNoDrop32x32.gif.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Trial-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-white_scale-100.png.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationProvider.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Forms.Design.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Input.Manipulations.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Input.Manipulations.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-math-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\lib\resources.jar.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\kk\msipc.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RUI.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipscht.xml.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	9a138c1bac186a5e643293702295ad00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Zombie.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 1876	2824	9a138c1bac186a5e643293702295ad00N.exe	85
PID 2824 wrote to memory of 1876	2824	9a138c1bac186a5e643293702295ad00N.exe	85
PID 2824 wrote to memory of 1876	2824	9a138c1bac186a5e643293702295ad00N.exe	85
PID 2824 wrote to memory of 3380	2824	9a138c1bac186a5e643293702295ad00N.exe	86
PID 2824 wrote to memory of 3380	2824	9a138c1bac186a5e643293702295ad00N.exe	86

C:\Users\Admin\AppData\Local\Temp\9a138c1bac186a5e643293702295ad00N.exe
"C:\Users\Admin\AppData\Local\Temp\9a138c1bac186a5e643293702295ad00N.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- 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:1876
- C:\Users\Admin\AppData\Local\Temp\_NisSrv.exe
  "_NisSrv.exe"
  2⤵
  - Executes dropped EXE
  PID:3380

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-1-5-21-2392887640-1187051047-2909758433-1000\desktop.ini.exe

Filesize
62KB

MD5
e5615888b6a1534d8b87fe52d2ef5dbb

SHA1
06dbcd091ca307bf1787cac54b1967db4f9ee8cb

SHA256
46769fd21120c471c9d2fc88b526638c27f86b7843addc5661a1d7575dfc85e4

SHA512
3acf7f9256bf24e869de4d98aa026d7365883869237ebd08551676ac4d8bdce6c85135c400a114783153b72a244ee3120652c3c33491f611ba1361455e7f0189

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

Filesize
2.4MB

MD5
826bf13d3fefe2369ceec3e679d96b7c

SHA1
c5fc719289ae948df373302bde739a0ac28ad573

SHA256
3aabfccd7697584ef580225d8a78f4b1043f319215c3cbc3c461b398ada6e0b3

SHA512
47d463df0b646960ae89288c95322f1e998bc479c71b2ad167ce9d194c629080628a2384c6003574aab1894a7d178b0eec3457f0d0425cc7c4ca2d67837e7e14

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

Filesize
62KB

MD5
b93789d1b7af8d0390d3420b432166f0

SHA1
e242cc93a9c2222b893c1cb316985e05b0998e2d

SHA256
412a1f118fc425d544f6826c06963001750407dbf7889e33675261c989e44759

SHA512
f333ff3499ae3134efed2bef0699c135c81aac37156d50ffa7f3fa758148b147925023fbbd53f3641050e2c8ac434939e8e7a307edfbde2dd5522c827ffb0b4f

Download Submit