30a6f22e80823e7cf9e472d687f4621bc1e9b3cadb9e21db665e15bc43ebafe1

General

Target

b546cedc_by_Libranalysis.exe
Size

30KB
MD5

b546cedcb4435270fc5d6deba093ee84
SHA1

c477284f3a5c23df842a76d475ce998c149ac1bd
SHA256

30a6f22e80823e7cf9e472d687f4621bc1e9b3cadb9e21db665e15bc43ebafe1
SHA512

55b9a64f5bc29d40aab12ed631d52ce9fb33cffbd1469de808e5e96cd31117fd0ee73444044c658a08f7aaa6a071f7aa2e21d5d65d9fa5efed0cafec797ca0da

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

Executes dropped EXE 1 IoCs

Processes:

dLMJbkj.exe

pid process

656 dLMJbkj.exe

pid	process
656	dLMJbkj.exe

Drops file in Program Files directory 64 IoCs

Processes:

dLMJbkj.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\policytool.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	dLMJbkj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\klist.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\onenoteshare.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jdeps.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\schemagen.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\xjc.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	dLMJbkj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	dLMJbkj.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\kinit.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseCncProxy.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Windows Mail\WinMail.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\onenoteim.exe	dLMJbkj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe	dLMJbkj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jvisualvm.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\kinit.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Windows Defender\Offline\OfflineScannerShell.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.16112.11601.0_x64__8wekyb3d8bbwe\Video.UI.exe	dLMJbkj.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.35.452\GoogleUpdateSetup.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javah.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	dLMJbkj.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_x64__8wekyb3d8bbwe\Time.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jarsigner.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jps.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jhat.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\rmid.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\extcheck.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.16112.11621.0_x64__8wekyb3d8bbwe\Music.UI.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\rmiregistry.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\HxTsr.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javapackager.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Maps.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jrunscript.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\kinit.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	dLMJbkj.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	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	dLMJbkj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1612.10312.0_x64__8wekyb3d8bbwe\PilotshubApp.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\chrome_pwa_launcher.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\jabswitch.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jconsole.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\jp2launcher.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msotd.exe	dLMJbkj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	dLMJbkj.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:

b546cedc_by_Libranalysis.exedLMJbkj.exe

description	pid	process	target process
PID 1892 wrote to memory of 656	1892	b546cedc_by_Libranalysis.exe	dLMJbkj.exe
PID 1892 wrote to memory of 656	1892	b546cedc_by_Libranalysis.exe	dLMJbkj.exe
PID 1892 wrote to memory of 656	1892	b546cedc_by_Libranalysis.exe	dLMJbkj.exe
PID 656 wrote to memory of 3508	656	dLMJbkj.exe	cmd.exe
PID 656 wrote to memory of 3508	656	dLMJbkj.exe	cmd.exe
PID 656 wrote to memory of 3508	656	dLMJbkj.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\b546cedc_by_Libranalysis.exe
"C:\Users\Admin\AppData\Local\Temp\b546cedc_by_Libranalysis.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1892

C:\Users\Admin\AppData\Local\Temp\dLMJbkj.exe
C:\Users\Admin\AppData\Local\Temp\dLMJbkj.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:656

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\61800ac7.bat" "
3⤵
PID:3508

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\61800ac7.bat
MD5
267cfb158b3a85cfcdf6ff5561a00552

SHA1
8e6d3b510f70cfdcded006769ad0076512917f9a

SHA256
33798e1f437aa858375fe207f5fed6380c32b4faf3329bb0d6036172990acef5

SHA512
20bf4f7a2b5dd852f2479040eefde928aabaa07d1b813256758dbe52d353acb12e9a4e2827b5606ab79f1877e089550c72595fe3f4cbe1fbd17ef89bdc5b35c1

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/656-114-0x0000000000000000-mapping.dmp

Download
memory/1892-117-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1892-118-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3508-119-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads