bac151b1d5d2ec80e8fbe53f8dede7f96215b6dc8e58098c1e69676d4a28dffd

General

Target

bac151b1d5d2ec80e8fbe53f8dede7f96215b6dc8e58098c1e69676d4a28dffd.exe
Size

622KB
MD5

0de2e35c9d95fd78da164a7de78cfe16
SHA1

9634f27183ee0908b40792ba57fda820275150e2
SHA256

bac151b1d5d2ec80e8fbe53f8dede7f96215b6dc8e58098c1e69676d4a28dffd
SHA512

66ab2c75d15c42b2691974b37fa9464740ae51d06f555124b3ab1cb1b808f7f5740a991042a3532b646dab34f93855263545250c0280645518f0f7756015cd76

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\CypsY.exe	aspack_v212_v242
C:\Users\Admin\AppData\Local\Temp\CypsY.exe	aspack_v212_v242

Executes dropped EXE 1 IoCs

Processes:

CypsY.exe

pid process

3956 CypsY.exe

pid	process
3956	CypsY.exe

Drops file in Program Files directory 64 IoCs

Processes:

CypsY.exe

description	ioc	process
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_17.8010.5926.0_x64__8wekyb3d8bbwe\Office16\OfficeHubTaskHost.exe	CypsY.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1612.10312.0_x64__8wekyb3d8bbwe\PilotshubApp.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msotd.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	CypsY.exe
File opened for modification	C:\Program Files\Windows Defender\MpCmdRun.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\keytool.exe	CypsY.exe
File opened for modification	C:\Program Files\Windows Defender\MpUXSrv.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\serialver.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\schemagen.exe	CypsY.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	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.18.56.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Weather.exe	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_1.4.101.0_x64__8wekyb3d8bbwe\Microsoft.StickyNotes.exe	CypsY.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\java-rmi.exe	CypsY.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\idlj.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\policytool.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	CypsY.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe	CypsY.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	CypsY.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\kinit.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\keytool.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE	CypsY.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.16112.11601.0_x64__8wekyb3d8bbwe\Video.UI.exe	CypsY.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\notification_helper.exe	CypsY.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\XboxApp.exe	CypsY.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe	CypsY.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\javacpl.exe	CypsY.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jmc.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\javaw.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\HxAccounts.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jconsole.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\javacpl.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jrunscript.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javac.exe	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\DATABASECOMPARE.EXE	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE	CypsY.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	CypsY.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1702.301.0_x64__8wekyb3d8bbwe\SoundRec.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jstat.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jabswitch.exe	CypsY.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\rmid.exe	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE	CypsY.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE	CypsY.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	CypsY.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	CypsY.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.35.452\GoogleUpdate.exe	CypsY.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:

bac151b1d5d2ec80e8fbe53f8dede7f96215b6dc8e58098c1e69676d4a28dffd.exeCypsY.exe

description	pid	process	target process
PID 1808 wrote to memory of 3956	1808	bac151b1d5d2ec80e8fbe53f8dede7f96215b6dc8e58098c1e69676d4a28dffd.exe	CypsY.exe
PID 1808 wrote to memory of 3956	1808	bac151b1d5d2ec80e8fbe53f8dede7f96215b6dc8e58098c1e69676d4a28dffd.exe	CypsY.exe
PID 1808 wrote to memory of 3956	1808	bac151b1d5d2ec80e8fbe53f8dede7f96215b6dc8e58098c1e69676d4a28dffd.exe	CypsY.exe
PID 3956 wrote to memory of 2808	3956	CypsY.exe	cmd.exe
PID 3956 wrote to memory of 2808	3956	CypsY.exe	cmd.exe
PID 3956 wrote to memory of 2808	3956	CypsY.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\bac151b1d5d2ec80e8fbe53f8dede7f96215b6dc8e58098c1e69676d4a28dffd.exe
"C:\Users\Admin\AppData\Local\Temp\bac151b1d5d2ec80e8fbe53f8dede7f96215b6dc8e58098c1e69676d4a28dffd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1808

C:\Users\Admin\AppData\Local\Temp\CypsY.exe
C:\Users\Admin\AppData\Local\Temp\CypsY.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3956

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\0e4001c9.bat" "
3⤵
PID:2808

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\0e4001c9.bat
MD5
1293a8380fc5c10a6a51e47487372384

SHA1
684c4eb51f32b3a3daf2bb25b21d0d17b1b55f62

SHA256
405feb08ff60da43378231fe44752f2960ce8f5ed60b5ab96d74293c874d68cb

SHA512
740ac782247090a858d1d7c349f9775af3af082264633991aed31efb3ee1fdb0014b8bfa48364ba3a8e3ac7978ca23e963e6e2e749564c063fa5e044c9d862a6

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/2808-117-0x0000000000000000-mapping.dmp

Download
memory/3956-114-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads