c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f

General

Target

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Size

652KB
MD5

831deb0768dac723c809b3bee52dbc3a
SHA1

254441d7a3ec3057ce2768191b47a76e4c9a7a5e
SHA256

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f
SHA512

fa375e528babcf433eefb2d9f585922b905cbbab2cf993a55901e019da0eec8a932f1afea0f978a0f139bbd46500dbc0b1df2acd4a2dbb4d28bb7da90100b2f1
SSDEEP

12288:UsAL/W5L/SZdSCvTF+bDTqXTa7v5ouBdhNU3MRujtojvIAngwCslDmZ/s7i:UsW/WNSZ8CLGETEjnqKQ4hBmZ/j

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:

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.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

1116 spoolsv.exe

pid	process
1116	spoolsv.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exespoolsv.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msljd32.exe"	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msljd32.exe"	spoolsv.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe

Drops file in System32 directory 6 IoCs

Processes:

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\concp32.exe	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
File created	C:\Windows\SysWOW64\vcl32.exe	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
File created	C:\Windows\SysWOW64\msljd32.exe	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
File opened for modification	C:\Windows\SysWOW64\msljd32.exe	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
File created	C:\Windows\SysWOW64\concp32.exe	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe

Drops file in Windows directory 2 IoCs

Processes:

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe

description	ioc	process
File opened for modification	C:\Windows\spoolsv.exe	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
File created	C:\Windows\spoolsv.exe	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe

Modifies registry class 12 IoCs

Processes:

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exespoolsv.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 3c8113f5ef6e9795b4968851474e6e69	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	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\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3644DB4-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe

pid process

1480 c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe

pid	process
1480	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe

description	pid	process	target process
PID 1480 wrote to memory of 1116	1480	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe	spoolsv.exe
PID 1480 wrote to memory of 1116	1480	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe	spoolsv.exe
PID 1480 wrote to memory of 1116	1480	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe	spoolsv.exe
PID 1480 wrote to memory of 1116	1480	c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe	spoolsv.exe

C:\Users\Admin\AppData\Local\Temp\c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.exe
"C:\Users\Admin\AppData\Local\Temp\c8542cc2926d8d61e155a6b07de0032862374d19846f9549acbc8d7b0b11e33f.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:1480
- 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:1116

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\spoolsv.exe

Filesize
657KB

MD5
17d0851f3e5a105aa928fc0b4f7b7fb4

SHA1
dbf38ac94d8fa94083981ff379ebef78cea23ccf

SHA256
499c37b86c6248d8506f11bff3f7e9ece91a7217f6e0ee5e8b4176a1319c02fb

SHA512
42197170887c3f26e2e1f397d8f69040a82ec52e516380bdc048408b73b3a4b29b2f0ba913c62db2b8710a896b95f9ba1f7b229edfb33f58d38e9ac595758901

Download Submit
memory/1116-55-0x0000000000000000-mapping.dmp

Download
memory/1116-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1116-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1480-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1480-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads