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 4 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
\Users\Admin\AppData\Local\Temp\ycSxmA.exe	aspack_v212_v242
\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

2040 ycSxmA.exe

pid	process
2040	ycSxmA.exe

Loads dropped DLL 2 IoCs

Processes:

aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe

pid	process
1208	aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe
1208	aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe

Drops file in Program Files directory 64 IoCs

Processes:

ycSxmA.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jre7\bin\ssvagent.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-hang-ui.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.35.452\GoogleUpdate.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Wordconv.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jvisualvm.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\servertool.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javaws.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\tnameserv.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\XLICONS.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javap.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\kinit.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\misc.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOSYNC.EXE	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WORDICON.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jcmd.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmid.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Windows Defender\MpCmdRun.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOUC.EXE	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SELFCERT.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\DVD Maker\DVDMaker.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jsadebugd.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javacpl.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\kinit.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AdobeCollabSync.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.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 (x86)\Google\Update\1.3.35.452\GoogleUpdateBroker.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\elevation_service.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\jstack.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\MSOHTMED.EXE	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\A3DUtility.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CNFNOT32.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\klist.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\orbd.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\rmic.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\keytool.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmiregistry.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Windows Defender\MSASCui.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javaw.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\pack200.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javaw.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\LogTransport2.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\pack200.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jre7\bin\servertool.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\VPREVIEW.EXE	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ktab.exe	ycSxmA.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\launcher.exe	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CLVIEW.EXE	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE	ycSxmA.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.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 8 IoCs

Processes:

aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exeycSxmA.exe

description	pid	process	target process
PID 1208 wrote to memory of 2040	1208	aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe	ycSxmA.exe
PID 1208 wrote to memory of 2040	1208	aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe	ycSxmA.exe
PID 1208 wrote to memory of 2040	1208	aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe	ycSxmA.exe
PID 1208 wrote to memory of 2040	1208	aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe	ycSxmA.exe
PID 2040 wrote to memory of 664	2040	ycSxmA.exe	cmd.exe
PID 2040 wrote to memory of 664	2040	ycSxmA.exe	cmd.exe
PID 2040 wrote to memory of 664	2040	ycSxmA.exe	cmd.exe
PID 2040 wrote to memory of 664	2040	ycSxmA.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe
"C:\Users\Admin\AppData\Local\Temp\aa4d56b0951acd291a34ba89e51660f1884800205b197ea058aa7161f930b543.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1208

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:2040

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\6b8f26da.bat" "
3⤵
PID:664

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\6b8f26da.bat
MD5
dc525061f979ef80c76ef7f6c67a1aef

SHA1
775f50aa641f28849d0f3eca9ad513bb70622865

SHA256
46665772130f4d2b7a337d8a4ab356b526f6cd143beaccb920445daf852b56d3

SHA512
c72533ecc9d8e29fd646a4c4137a85f924f1c146a8173b69a0ca7ac2b7f59df6ef579896be2cfa3979f6046be1e73fb34b75a46b442e01d5deb500ef782507d2

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/664-68-0x0000000000000000-mapping.dmp

Download
memory/1208-59-0x0000000075561000-0x0000000075563000-memory.dmp

Filesize
8KB

Download
memory/1208-66-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1208-67-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2040-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads