dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d

Analysis

max time kernel
150s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2024, 05:45

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General

Target

dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe
Size

383KB
MD5

937ee5646f9f4d5dc09be21099f2e276
SHA1

a914781bca4c2941132274720b7a02d587d8c2d1
SHA256

dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d
SHA512

0a425791d9dfb85b4877e6cff024e85de1d92fabb8cf8ecfa096ec51d348d33c020793b92231319f27ce9dcf89f286ae7443ed6967d8fc28f54f80060621aa71
SSDEEP

6144:PqFF2Ie+effypW+Dffz1gUZ3sOeNw0VqIJ/uJn9tvq3v3/sSQJw1Tn:iFF2UpW+Dfhg0cvd5JIDvTJw1L

Score

9^/10

discovery ransomware

Malware Config

Signatures

Renames multiple (5027) 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
2316	Zombie.exe
4076	_7z.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Zombie.exe	dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe
File opened for modification	C:\Windows\SysWOW64\Zombie.exe	dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
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\6.0.27\pl\UIAutomationClient.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\UIAutomationTypes.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\LICENSE.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\LibCurl64.DllA\libcurl64.dlla.manifest.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.he-il.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\SharedPerformance.man.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.Native.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_MAK-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\msvcp120.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.Compression.FileSystem.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.Compression.Native.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\BORDERS\MSART6.BDR.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-file-l2-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\otkloadr_x64.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_zh_TW.properties.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\icu_web.md.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue II.xml.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\TecProxy.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Http.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\PresentationFramework.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\WindowsBase.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN081.XML.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R64.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Writer.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\cldrdata.jar.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Xaml.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationClient.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp6-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-black_scale-80.png.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Client\msvcr120.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_SubTrial-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\MSGR8FR.LEX.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-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\management\jmxremote.password.template.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\bin\javaws.exe.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-ul-phn.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CHART.DLL.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Xaml.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\bin\idlj.exe.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail2-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp6-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\zlib.md.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Grace-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\IpsMigrationPlugin.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\PresentationFramework.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\pl.pak.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\lib\calendars.properties.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\icu.md.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\bin\server\Xusage.txt.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp4-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Dynamic.Runtime.dll.tmp	Zombie.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Zombie.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	_7z.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3688 wrote to memory of 2316	3688	dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe	83
PID 3688 wrote to memory of 2316	3688	dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe	83
PID 3688 wrote to memory of 2316	3688	dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe	83
PID 3688 wrote to memory of 4076	3688	dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe	85
PID 3688 wrote to memory of 4076	3688	dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe	85
PID 3688 wrote to memory of 4076	3688	dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe	85

C:\Users\Admin\AppData\Local\Temp\dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe
"C:\Users\Admin\AppData\Local\Temp\dc595fac0f1658220abac49fe974d78e9017c9176eadffe37562ecf82ea7c23d.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3688
- 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:2316
- C:\Users\Admin\AppData\Local\Temp\_7z.exe
  "_7z.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4076

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

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Downloads

C:\$Recycle.Bin\S-1-5-21-1266786182-1874524688-71015548-1000\desktop.ini.exe

Filesize
99KB

MD5
76943e34e193140984cad7903199167e

SHA1
d046f92ebfe2564082e1eae1062f4bf0f9c2a8ea

SHA256
06324943b885b5a3b69c615e153501f8693af93d8f94bab7995086d4ce851188

SHA512
7170ca27fea30179cf39a30d619227138f2e9fd2effc0170207c6b6fb672fc2a63e9cd25a87ce7712b147efa6ab687a298bc25993fb1e4e97884e74707a646d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\_7z.exe

Filesize
284KB

MD5
a42b35f975d88c1370a7aff084ee57a7

SHA1
bee1408fe0b15f6f719f003e46aee5ec424cf608

SHA256
56cc9e7e3767c0cffae8161bf0ad13457487c1b422e2879b897dbd4bab115776

SHA512
b92d05515e18277db660118934e70678ee2a3bb66005bad19bb417ffaedb22a63727a5a697ca3ac0f6c48f6f5593ba45ab80f4ebdc0eaed10d80b7af04d45b23

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

Filesize
99KB

MD5
5fa2f6d65d5512be57f380cc53582482

SHA1
db3f50b0d4d52b7982067e38f648fe3f3b76603c

SHA256
eb4adad2d8b0787ac71f1fea8851e2cce97adde0d254e312fcbdd2151a7e0acb

SHA512
e42720eeb882ca1633491535a316c7642581f97f42ae4df92b7b9786ca33e1c5a17d0fb4de4a7ae9e5d99b5575cc092e5076a54c6f8a34709f6beab64160acf6

Download Submit