a5864cd026a6578ca18c57ae7f81d881d797dd1038375fd520272a5aad9e8e73

General

Target

a5864cd026a6578ca18c57ae7f81d881d797dd1038375fd520272a5aad9e8e73.exe
Size

103KB
MD5

d1697be5ce8f02efc39e80a40e581b02
SHA1

c9e9be8e9ae48c1a58b09975890a8c117417c533
SHA256

a5864cd026a6578ca18c57ae7f81d881d797dd1038375fd520272a5aad9e8e73
SHA512

3b350a388e4853f74d26256276998e54ba8e86471976841fdefebddf7814ce78f1508be557d1729b050b222c7eee74ef4aa537f58b31ed4410948cf2b49949b0

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

Executes dropped EXE 1 IoCs

Processes:

vOmfB.exe

pid process

648 vOmfB.exe

pid	process
648	vOmfB.exe

Drops file in Program Files directory 64 IoCs

Processes:

vOmfB.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\rmic.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\rmiregistry.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	vOmfB.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1702.301.0_x64__8wekyb3d8bbwe\SoundRec.exe	vOmfB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	vOmfB.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	vOmfB.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-hang-ui.exe	vOmfB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	vOmfB.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	vOmfB.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_1.0.16328.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\orbd.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	vOmfB.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	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\java.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\orbd.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\pack200.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\ktab.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\servertool.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	vOmfB.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_4.5.6.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\orbd.exe	vOmfB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe	vOmfB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE	vOmfB.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\HxTsr.exe	vOmfB.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\elevation_service.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\keytool.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\wsimport.exe	vOmfB.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1702.312.0_x64__8wekyb3d8bbwe\Calculator.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jarsigner.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVLP.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	vOmfB.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	vOmfB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\jjs.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javafxpackager.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\xjc.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\java.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\rmiregistry.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	vOmfB.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	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE	vOmfB.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_1.1702.21039.0_x64__8wekyb3d8bbwe\3DViewer.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jcmd.exe	vOmfB.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.35.452\GoogleUpdateCore.exe	vOmfB.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	vOmfB.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCui.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\rmid.exe	vOmfB.exe
File opened for modification	C:\Program Files\Windows Defender\ConfigSecurityPolicy.exe	vOmfB.exe
File opened for modification	C:\Program Files (x86)\Google\Temp\GUM1CBD.tmp\GoogleUpdateSetup.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jabswitch.exe	vOmfB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	vOmfB.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	vOmfB.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.15.2003.0_x64__8wekyb3d8bbwe\GameBar.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\bin\rmid.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\pack200.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javap.exe	vOmfB.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\idlj.exe	vOmfB.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:

a5864cd026a6578ca18c57ae7f81d881d797dd1038375fd520272a5aad9e8e73.exevOmfB.exe

description	pid	process	target process
PID 2232 wrote to memory of 648	2232	a5864cd026a6578ca18c57ae7f81d881d797dd1038375fd520272a5aad9e8e73.exe	vOmfB.exe
PID 2232 wrote to memory of 648	2232	a5864cd026a6578ca18c57ae7f81d881d797dd1038375fd520272a5aad9e8e73.exe	vOmfB.exe
PID 2232 wrote to memory of 648	2232	a5864cd026a6578ca18c57ae7f81d881d797dd1038375fd520272a5aad9e8e73.exe	vOmfB.exe
PID 648 wrote to memory of 3152	648	vOmfB.exe	cmd.exe
PID 648 wrote to memory of 3152	648	vOmfB.exe	cmd.exe
PID 648 wrote to memory of 3152	648	vOmfB.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\a5864cd026a6578ca18c57ae7f81d881d797dd1038375fd520272a5aad9e8e73.exe
"C:\Users\Admin\AppData\Local\Temp\a5864cd026a6578ca18c57ae7f81d881d797dd1038375fd520272a5aad9e8e73.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2232

C:\Users\Admin\AppData\Local\Temp\vOmfB.exe
C:\Users\Admin\AppData\Local\Temp\vOmfB.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:648

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\54b126b7.bat" "
3⤵
PID:3152

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\54b126b7.bat
MD5
2b33410b383d1b0d5e03a0ecc740c7ce

SHA1
9fa3e788d4afc96f57bb0a322947092741fa6368

SHA256
a0fe253b7c0ed7bcc06397272e2608ba44ad886e7d1264949208260a74c75fd4

SHA512
5beb8c990371d3451d694a5cb84293962af82e04a0beaa7b282bf305e0001f2645b5f0e47c3248bfeda47feb0224d714d4653639f730b872f226aa4dd04ede83

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/648-114-0x0000000000000000-mapping.dmp

Download
memory/3152-117-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads