wannacry | 1665694f0fa0461f34dee6ada7abd00e56c13405b942cead3a65feabf44b07fc

General

Target

2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe
Size

260KB
MD5

b54375863d3a8947d39f959af777440a
SHA1

57f6aab0f117546bee9a370f7ed391635fc4124f
SHA256

1665694f0fa0461f34dee6ada7abd00e56c13405b942cead3a65feabf44b07fc
SHA512

2c446c0e2d90ba7fbd19cf0b17bc1aa1058e5a8f30fef595b88544920f271633d5eb9d9cd318f6174b1f0ece1d90c92e82d770d8e45f06957c863d9930c663ac
SSDEEP

3072:+mrhd5U1eigWcR+uiUg6p4FLlG4tlL8z+mmCeHFZjoHEo3NGCH:+Ed5+IZiZhLlG4AimmCC

Score

10^/10

wannacry aspackv2 discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\OxKluLWL.exe	aspack_v212_v242

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

OxKluLWL.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation OxKluLWL.exe
Executes dropped EXE 1 IoCs

Processes:

OxKluLWL.exe

pid process

5068 OxKluLWL.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation	OxKluLWL.exe

pid	process
5068	OxKluLWL.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]"	2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe

Drops file in Program Files directory 64 IoCs

Processes:

OxKluLWL.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\policytool.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe	OxKluLWL.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler64.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Installer\chrmstp.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxTsr.exe	OxKluLWL.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_x64__8wekyb3d8bbwe\StoreExperienceHost.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaws.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe	OxKluLWL.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javah.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	OxKluLWL.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateBroker.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe	OxKluLWL.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	OxKluLWL.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Installer\setup.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaw.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\filecompare.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVLP.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\SoundRec.exe	OxKluLWL.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTEM.EXE	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\fmui\fmui.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\unpack200.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe	OxKluLWL.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	OxKluLWL.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	OxKluLWL.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe	OxKluLWL.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

Processes:

2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exeOxKluLWL.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OxKluLWL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe

pid process

3844 2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe
3844 2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe

pid	process
3844	2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe
3844	2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exeOxKluLWL.exe

description	pid	process	target process
PID 3844 wrote to memory of 5068	3844	2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe	OxKluLWL.exe
PID 3844 wrote to memory of 5068	3844	2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe	OxKluLWL.exe
PID 3844 wrote to memory of 5068	3844	2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe	OxKluLWL.exe
PID 5068 wrote to memory of 2036	5068	OxKluLWL.exe	cmd.exe
PID 5068 wrote to memory of 2036	5068	OxKluLWL.exe	cmd.exe
PID 5068 wrote to memory of 2036	5068	OxKluLWL.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-26_b54375863d3a8947d39f959af777440a_wannacry_wapomi.exe"
1⤵
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3844

C:\Users\Admin\AppData\Local\Temp\OxKluLWL.exe
C:\Users\Admin\AppData\Local\Temp\OxKluLWL.exe
2⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5068

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\4f5f36c9.bat" "
3⤵
- System Location Discovery: System Language Discovery
PID:2036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5G8JI3LV\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\4f5f36c9.bat

Filesize
191B

MD5
3521a1b9cb1ef12363a552d51c48f75b

SHA1
d43123400211247af2835e7b98b54d1808624078

SHA256
c5c03f638664348d990da919bbbd212355b3770b579e4c9c281960a7ea193d76

SHA512
717d2d0a41c7caad6accb414dfeb1640be8f41166255f0226a15a086628d4b3d4106f0465e3328a63755146fa13e4fdc1914998a8d433a54a8bfc3af5638b9d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\5FC2111A.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/3844-0-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3844-27-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/5068-5-0x0000000000C30000-0x0000000000C39000-memory.dmp

Filesize
36KB

Download
memory/5068-25-0x0000000000C30000-0x0000000000C39000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads