76f4794e4bd1067b2a1449fc3ffdf444130a9d0a893294b674c182251cfa9137

General

Target

76f4794e4bd1067b2a1449fc3ffdf444130a9d0a893294b674c182251cfa9137.exe
Size

80KB
MD5

5f51794e198a21c1dd6b0f2eb6482e0f
SHA1

6ac7ffc7d6e149a62235f286eefc64385ba0277a
SHA256

76f4794e4bd1067b2a1449fc3ffdf444130a9d0a893294b674c182251cfa9137
SHA512

807b64c3cfc704b0c8d22c225b2dac377a2dc4cd4a5d402f62fdc9be7dd1ae6da0981d9210e20f93ef0e8075e3e395faa988a35ad5b429725104afbf10ba357f

Score

8^/10

aspackv2

Malware Config

Signatures

ASPack v2.12-2.42 2 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

UlF.exe

pid process

2656 UlF.exe

pid	process
2656	UlF.exe

Drops file in Program Files directory 64 IoCs

Processes:

UlF.exe

description	ioc	process
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	UlF.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	UlF.exe
File opened for modification	C:\Program Files\Windows Defender\Offline\OfflineScannerShell.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\java-rmi.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\orbd.exe	UlF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javapackager.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\servertool.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\89.0.4389.114\89.0.4389.114_chrome_installer.exe	UlF.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	UlF.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	UlF.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCuiL.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\rmic.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\orbd.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.35.452\GoogleUpdate.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\appletviewer.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jinfo.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\java-rmi.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\klist.exe	UlF.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javafxpackager.exe	UlF.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	UlF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	UlF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	UlF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_1.0.16328.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\schemagen.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\javacpl.exe	UlF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe	UlF.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	UlF.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	UlF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.18.56.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Weather.exe	UlF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Messaging_3.26.24002.0_x64__8wekyb3d8bbwe\MessagingApplication.exe	UlF.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\Installer\chrmstp.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\lib\nbexec.exe	UlF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	UlF.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	UlF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Solitaire.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\orbd.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\java.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\rmid.exe	UlF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	UlF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\XboxApp.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.35.452\GoogleCrashHandler64.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jsadebugd.exe	UlF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE	UlF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_17.8010.5926.0_x64__8wekyb3d8bbwe\Office16\OfficeHubTaskHost.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\extcheck.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jdeps.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\ktab.exe	UlF.exe
File opened for modification	C:\Program Files\Windows Defender\MsMpEng.exe	UlF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	UlF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.35.452\GoogleUpdateOnDemand.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\idlj.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jmc.exe	UlF.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\jjs.exe	UlF.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	UlF.exe
File opened for modification	C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	UlF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe	UlF.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

76f4794e4bd1067b2a1449fc3ffdf444130a9d0a893294b674c182251cfa9137.exeUlF.exe

description	pid	process	target process
PID 3928 wrote to memory of 2656	3928	76f4794e4bd1067b2a1449fc3ffdf444130a9d0a893294b674c182251cfa9137.exe	UlF.exe
PID 3928 wrote to memory of 2656	3928	76f4794e4bd1067b2a1449fc3ffdf444130a9d0a893294b674c182251cfa9137.exe	UlF.exe
PID 3928 wrote to memory of 2656	3928	76f4794e4bd1067b2a1449fc3ffdf444130a9d0a893294b674c182251cfa9137.exe	UlF.exe
PID 2656 wrote to memory of 1172	2656	UlF.exe	cmd.exe
PID 2656 wrote to memory of 1172	2656	UlF.exe	cmd.exe
PID 2656 wrote to memory of 1172	2656	UlF.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\76f4794e4bd1067b2a1449fc3ffdf444130a9d0a893294b674c182251cfa9137.exe
"C:\Users\Admin\AppData\Local\Temp\76f4794e4bd1067b2a1449fc3ffdf444130a9d0a893294b674c182251cfa9137.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3928

C:\Users\Admin\AppData\Local\Temp\UlF.exe
C:\Users\Admin\AppData\Local\Temp\UlF.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2656

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\654a742c.bat" "
3⤵
PID:1172

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\654a742c.bat
MD5
dd107b5e9f8daf4eb009a30286d6f1ae

SHA1
d8fb4e57ff72156de4bf787908f1cf7959dff456

SHA256
1da0c17faf1a3e647d2279636fd5482fe61841b494df0997be2a48ae11c43089

SHA512
f67eb0c9a7d9f8105db54a1f9b60cdc519f9f3666d521424f2d48b64921dd3df279bba257883c7de4979fb1d442d675c74fdc2e0efa045df2ad44c7e694a8533

Download Submit
C:\Users\Admin\AppData\Local\Temp\UlF.exe
MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\UlF.exe
MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1172-117-0x0000000000000000-mapping.dmp

Download
memory/2656-114-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads