aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543

General

Target

aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe
Size

30KB
MD5

f6a4922d3dfce30a95e47bb5cb7aff56
SHA1

1597311f83a1dba361d75e58e9d1cb676f7667ac
SHA256

aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543
SHA512

04364dcbf06741e659375b9546510077c321a451c2910a88d301b1f52868564f307cbafd193ee38b05d1a990f0c435a9a678eb5c34e05f7839ccdb4be875ba93

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

Executes dropped EXE 1 IoCs

Processes:

ycSxmA.exe

pid process

948 ycSxmA.exe

pid	process
948	ycSxmA.exe

Drops file in Program Files directory 64 IoCs

Processes:

ycSxmA.exe

description	ioc	process
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\orbd.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\servertool.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\javaw.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jvisualvm.exe	ycSxmA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_x64__8wekyb3d8bbwe\Builder3D.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.35.452\GoogleUpdateBroker.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\tnameserv.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\excelcnv.exe	ycSxmA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\onenoteshare.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javafxpackager.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javapackager.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jcmd.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jmap.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Windows Defender\Offline\OfflineScannerShell.exe	ycSxmA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.OneConnect_2.1701.277.0_x64__8wekyb3d8bbwe\OneConnect.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\Installer\setup.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.35.452\GoogleCrashHandler64.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{A50F5BA2-C1DE-4223-A03D-AB17178FF778}\89.0.4389.114_chrome_installer.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\orbd.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\kinit.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	ycSxmA.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	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\kinit.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jjs.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\xjc.exe	ycSxmA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Messaging_3.26.24002.0_x64__8wekyb3d8bbwe\MessagingApplication.exe	ycSxmA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_1.1702.21039.0_x64__8wekyb3d8bbwe\3DViewer.ResourceResolver.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\java.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\rmic.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\klist.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jarsigner.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	ycSxmA.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	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\wsimport.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCuiL.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\serialver.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe	ycSxmA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2017.125.40.0_x64__8wekyb3d8bbwe\WindowsCamera.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	ycSxmA.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11701.1001.87.0_x64__8wekyb3d8bbwe\WinStore.App.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\schemagen.exe	ycSxmA.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:

aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exeycSxmA.exe

description	pid	process	target process
PID 3920 wrote to memory of 948	3920	aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe	ycSxmA.exe
PID 3920 wrote to memory of 948	3920	aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe	ycSxmA.exe
PID 3920 wrote to memory of 948	3920	aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe	ycSxmA.exe
PID 948 wrote to memory of 1868	948	ycSxmA.exe	cmd.exe
PID 948 wrote to memory of 1868	948	ycSxmA.exe	cmd.exe
PID 948 wrote to memory of 1868	948	ycSxmA.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe
"C:\Users\Admin\AppData\Local\Temp\aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3920

C:\Users\Admin\AppData\Local\Temp\ycSxmA.exe
C:\Users\Admin\AppData\Local\Temp\ycSxmA.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:948

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7a0916e5.bat" "
3⤵
PID:1868

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\7a0916e5.bat
MD5
d422741f59ca24d4325e42e55762aec0

SHA1
79553700c199931febe69c0c2c6af3917157448e

SHA256
562abcae0e50d2a68a7d8655c7d398bd17cfe5e6761bd2aab3aa045f6769c688

SHA512
d5fd7b3d844725de772218a0017d2302738677b6abc44b62959f4512c5c3105d5e09f53be239ba60e8e2726d965759b3b46f74f777263cb2471ae62ca322dd85

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/948-114-0x0000000000000000-mapping.dmp

Download
memory/1868-119-0x0000000000000000-mapping.dmp

Download
memory/3920-118-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3920-117-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads