bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515

General

Target

bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
Size

160KB
MD5

c6e6a311f8a988789543683a297aa988
SHA1

4ada699415ece27f75df0fbcd5b9f441c657ef4e
SHA256

bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515
SHA512

75e731fa841b518079df36fd9b50659b2373ce084412a45ce93c27e21cd6e1cb844520fb29f1b640cf0c5a4444cb9576fd29ade8c0a9c3bd42a8f8289eb333be
SSDEEP

3072:MRAhhcsxgAJuK7bZD01GoI0ONtNmlngmx5MO0xiKlmSaZN:MRAhhJxX7bNIFlxomS0

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:

bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.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

1684 spoolsv.exe

pid	process
1684	spoolsv.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

spoolsv.exebd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msiyq32.exe"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msiyq32.exe"	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

spoolsv.exebd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

Drops file in System32 directory 6 IoCs

Processes:

bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

description	ioc	process
File created	C:\Windows\SysWOW64\msiyq32.exe	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
File opened for modification	C:\Windows\SysWOW64\msiyq32.exe	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
File created	C:\Windows\SysWOW64\concp32.exe	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
File created	C:\Windows\SysWOW64\vcl32.exe	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

Drops file in Windows directory 2 IoCs

Processes:

bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

description	ioc	process
File created	C:\Windows\spoolsv.exe	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
File opened for modification	C:\Windows\spoolsv.exe	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

Modifies registry class 12 IoCs

Processes:

bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exespoolsv.exe

description	ioc	process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 7ba5baa98fdcef71e2e8b762ecb7f449	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	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\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE02FB96-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

pid process

1192 bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

pid	process
1192	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe

description	pid	process	target process
PID 1192 wrote to memory of 1684	1192	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe	spoolsv.exe
PID 1192 wrote to memory of 1684	1192	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe	spoolsv.exe
PID 1192 wrote to memory of 1684	1192	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe	spoolsv.exe
PID 1192 wrote to memory of 1684	1192	bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe	spoolsv.exe

C:\Users\Admin\AppData\Local\Temp\bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.exe
"C:\Users\Admin\AppData\Local\Temp\bd8ba4483e3d8df6071b9cb31de683b87f64e3f1774c9cf5a7ecb76a67a31515.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:1192

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:1684

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
160KB

MD5
61d18430eb066eca66e8bc04f7621654

SHA1
e984a7cefa34ef036b6368dc3aa8eb541964b481

SHA256
15b102caaafd2b499e080ee6097b64d3b279ee8d6e9056a1fb0b3d54bee981da

SHA512
be2192b356e3efba28b7f76ac2dbed4ad3ce71a56124bfc5a8f4ba0251813dedd3f182534c2921292d50932f7b5baea8d79b456eadf28cfccc24f1ff6274c0e4

Download Submit
memory/1192-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1192-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1684-55-0x0000000000000000-mapping.dmp

Download
memory/1684-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1684-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads