fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6

General

Target

fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
Size

405KB
MD5

23679b362206c3b8dcff679e4bb98c60
SHA1

c87373f290d2dd8651f5419b1e227ac14d32dff8
SHA256

fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6
SHA512

3baba7de02547ea64eb97328259fde187e101365a26c49230f1e9828bf27ccf8f6a3e7be700a239663ea6dc508d8f2d7f5438432e021f7f643aaeb95852a2612
SSDEEP

6144:NtKe6YiDdv3m3mgKHIl7bNIFlJYe5hhbc9FTPweUKub9CSkipcYMSmfQs541DgIb:NtKe6Zv23Yd1pbaUKub9DkccYMLQsaf

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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe

Executes dropped EXE 1 IoCs

pid	Process
1220	spoolsv.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msxhn32.exe"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msxhn32.exe"	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\concp32.exe	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
File created	C:\Windows\SysWOW64\vcl32.exe	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
File created	C:\Windows\SysWOW64\msxhn32.exe	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
File opened for modification	C:\Windows\SysWOW64\msxhn32.exe	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\spoolsv.exe	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
File opened for modification	C:\Windows\spoolsv.exe	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5CE75E79-8B9A-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\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 387c7f7f2389099a6ceea5e58da80de1	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5CE75E79-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1112	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 1220	1112	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe	26
PID 1112 wrote to memory of 1220	1112	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe	26
PID 1112 wrote to memory of 1220	1112	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe	26
PID 1112 wrote to memory of 1220	1112	fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe	26

C:\Users\Admin\AppData\Local\Temp\fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.exe
"C:\Users\Admin\AppData\Local\Temp\fb0bcec1bfce6a47cee5b28fe90909bc0addb61acc3b2a2737e343310000dea6.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:1112
- 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:1220

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
409KB

MD5
fe2d33489a4aea5592503dbbf3cbbd3a

SHA1
dc400ec9af4f7afdd3d5e3f7c09ea694b977d0ed

SHA256
85247797c32ac70906ec45d1b6e5d02086eec94687bf27848520cdb95a2ba9a7

SHA512
b290f860a3d50b1afe5cea7b50ec975ce5bcb7c27b24296c1b60811d3c5c1012400b9af66d1f82af8d4e9ee442ddc579b3ada111a6f1f08246971dfcf4d1de45

Download Submit
memory/1112-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1112-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1220-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1220-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads