d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14/10/2024, 19:39

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General

Target

d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe
Size

199KB
MD5

d4aad543fca3084ae6b2a5d557af8b38
SHA1

eaacf04e69c315e7f0696d48c180e30fdf74d0a8
SHA256

d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277
SHA512

c7f5098a2ff1c37fd68f977bb8f0849aa8072469d45481c2dc3a2bb2dd8f31ad9eb28754bd8cd0330b3c85eb36262cf293bc14ea3b28a947abf0ca940e7d8bec
SSDEEP

3072:KQSoDD9u3NTcGCLOwstyhZFChcssc56FUrgxvbSD4UQrO2+:KQSo/9KN4ShcHUa+

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5019) 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
1724	Zombie.exe
2208	_choco.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Zombie.exe	d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe
File opened for modification	C:\Windows\SysWOW64\Zombie.exe	d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2092-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000c000000023b30-6.dat	upx
behavioral2/files/0x000a000000023b93-12.dat	upx
behavioral2/memory/2092-26-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Grace-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE.tmp	Zombie.exe
File created	C:\Program Files\7-Zip\Lang\fur.txt.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\msquic.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.TraceSource.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationClientSideProviders.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\THIRDPARTYLICENSEREADME.txt.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_KMS_Client-ul.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\personaspybridge.js.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-0C0A-1000-0000000FF1CE.xml.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\sr-Cyrl-BA\msipc.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\URLREDIR.DLL.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Globalization.Extensions.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\System.Windows.Forms.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Arial Black-Arial.xml.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ppd.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Grace-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ul-phn.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ul-phn.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_MAK-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBCTRAC.DLL.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ul-phn.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_COL.HXC.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsfra.xml.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.Parallel.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationFramework.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationClientSideProviders.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemXmlLinq.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial2-pl.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_COL.HXT.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.scale-100.png.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\wsdetect.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OneNote\SendToOneNote-PipelineConfig.xml.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000042\manifest.xml.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-process-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\Edit.png.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-heap-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.VisualBasic.dll.tmp	Zombie.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ro.pak.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\cpprestsdk.dll.tmp	Zombie.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\zh-TW\tipresx.dll.mui.tmp	Zombie.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\default_apps\external_extensions.json.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\as90.xsl.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.TypeExtensions.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Controls.Ribbon.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-errorhandling-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTrial-pl.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\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\CancelGlyph.16.White.png.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientLangPack2019_eula.txt.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-string-l1-1-0.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.FileSystem.AccessControl.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Serialization.Primitives.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.DirectoryServices.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-file-l1-2-0.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\zlib.md.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\lib\amd64\jvm.cfg.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XPath.XDocument.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Globalization.Calendars.dll.tmp	Zombie.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Retail-ul-oob.xrm-ms.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscorlib.dll.tmp	Zombie.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationTypes.resources.dll.tmp	Zombie.exe
File created	C:\Program Files\Java\jre-1.8\lib\tzdb.dat.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	d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Zombie.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 1724	2092	d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe	84
PID 2092 wrote to memory of 1724	2092	d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe	84
PID 2092 wrote to memory of 1724	2092	d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe	84
PID 2092 wrote to memory of 2208	2092	d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe	85
PID 2092 wrote to memory of 2208	2092	d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe	85

C:\Users\Admin\AppData\Local\Temp\d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe
"C:\Users\Admin\AppData\Local\Temp\d3d26e1ffe389545911ced5b9a7befbec71dbf0a89cf4d9fea2471ba0e0b5277.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2092
- 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:1724
- C:\Users\Admin\AppData\Local\Temp\_choco.exe
  "_choco.exe"
  2⤵
  - Executes dropped EXE
  PID:2208

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-1-5-21-2437139445-1151884604-3026847218-1000\desktop.ini.exe

Filesize
59KB

MD5
a34fce85a665e068c8cad156a7204749

SHA1
9b0401e407391e64f95ffc45db5b1f6cab742da6

SHA256
5c9e684233fc508d0c355bd068602d49efca4df199f3d5219199d4ef0ae13c65

SHA512
62808319fc0176a4ef6141214474a049fc37aee10c885fc8a87ec2ce55734fedec89039b3f7a8b831c1a24991058fe0eb2fa55f0f4a8cd076fda499a6c15111f

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

Filesize
140KB

MD5
c258b25b6ec8f09230e272033ad4b2fa

SHA1
c4e862d33fe8915818d9e58d428c7324a436f97f

SHA256
29f612bb3cc7a9712baaae62b49b0c03a661280b8bf0177b2713a13c016d0b32

SHA512
21f7da9bf267f4cb897d9475f8a6f32e6f7e777c3f761b739da4038d44c2786030bc46ab54a8832205d1fb1fe944d7005eb34ddad3700c4c79bcdb932191b90c

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

Filesize
59KB

MD5
d36d00c4b60d4faffd9b5399c4835390

SHA1
b0d58c40b2646ebd887fde0a5085ff845fccad75

SHA256
48b2b10c9e99c65983c13554f9c60b626c7d48d8670576309239535888ebb4f8

SHA512
0f1511bda082fb6acf2596e8ed45946b82cdd536dd48ca9bfb2ba0bf856fc28ab7d953ca2f2fa2c4cd37da4d65030515962f1d28bcd72a3cc0e87e93dc5a39df

Download Submit
memory/2092-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2092-26-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2208-21-0x00007FF8BCC83000-0x00007FF8BCC85000-memory.dmp

Filesize
8KB

Download
memory/2208-20-0x0000000000510000-0x0000000000538000-memory.dmp

Filesize
160KB

Download