71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819

General

Target

71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Size

734KB
MD5

1fe5b25b477190b9aad3d04c4220077e
SHA1

55b4b11bbffe885d5fcc54d4fdf5faf2f7aa0883
SHA256

71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819
SHA512

26e51147e63c66372919458782666a2e955c03cc7651ee816b2e1ba0ad1b817707801fcdf97c15a0b88a0800ece5f05b5e211f2419f84a518e10c1d729dbd855
SSDEEP

12288:UsA1mIRjZp9IyTFCMXSWEOIsgsg+8nS+K7u4k6ufmOQ/dcMFT9D+X2cXQx9:UsnIPp9IyTFC00OIswnS+6u4ktOOQeMV

Score

10^/10

persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	spoolsv.exe

Executes dropped EXE 1 IoCs

Processes:

spoolsv.exe

pid process

1944 spoolsv.exe

pid	process
1944	spoolsv.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msnfo32.exe"	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msnfo32.exe"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe

Drops file in System32 directory 6 IoCs

Processes:

71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

description	ioc	process
File created	C:\Windows\SysWOW64\vcl32.exe	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
File created	C:\Windows\SysWOW64\msnfo32.exe	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
File opened for modification	C:\Windows\SysWOW64\msnfo32.exe	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
File created	C:\Windows\SysWOW64\concp32.exe	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

Drops file in Windows directory 2 IoCs

Processes:

71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

description	ioc	process
File created	C:\Windows\spoolsv.exe	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
File opened for modification	C:\Windows\spoolsv.exe	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

Modifies registry class 12 IoCs

Processes:

spoolsv.exe71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

description	ioc	process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 7b068f5e5971ba786ed6fc6548d2b8ed	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AA71F641-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

pid process

1996 71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

pid	process
1996	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe

description	pid	process	target process
PID 1996 wrote to memory of 1944	1996	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe	spoolsv.exe
PID 1996 wrote to memory of 1944	1996	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe	spoolsv.exe
PID 1996 wrote to memory of 1944	1996	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe	spoolsv.exe
PID 1996 wrote to memory of 1944	1996	71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe	spoolsv.exe

C:\Users\Admin\AppData\Local\Temp\71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe
"C:\Users\Admin\AppData\Local\Temp\71eb93441deae2ddf1a4dccbea9a32885d94e3b9d19ea39e52771c4c6181a819.exe"
1⤵
- Modifies system executable filetype association
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\spoolsv.exe
  C:\Windows\spoolsv.exe
  2⤵
  - Modifies system executable filetype association
  - Executes dropped EXE
  - Modifies Installed Components in the registry
  - Adds Run key to start application
  - Modifies registry class
  PID:1944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\spoolsv.exe

Filesize
739KB

MD5
8020a82a42b44081aed8d59676530ddf

SHA1
ceb0defd10d059151e50c72b854279282d5a8561

SHA256
aac39cdb0cccc86a5902c8a3dd33911ab182947561bf145249063d2e5e6d914f

SHA512
1e3dbc0f2c9168f12648f990e01af5f1ece9089c3e64303d6ad902b351b7976f7a1ce0f75ce879142bf23158e355f7c17a94c2fddbc38bf25056ed6a448d85ae

Download Submit
memory/1944-55-0x0000000000000000-mapping.dmp

Download
memory/1944-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1944-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1996-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1996-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads