b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a

General

Target

b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
Size

372KB
MD5

93b6845fd7e9992bf947fe8168625760
SHA1

cabf5e62130499ab33afe8609d2a4ee98a71b4a9
SHA256

b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a
SHA512

cf1202fb9e5a794f0cb552cc01ac33564f6b0777181a4f3e393ea7e6446df22f87ad444a13183a34569d203c38b1e075c89af271bc51a31aedbc7f5bc1670706
SSDEEP

6144:MRAhhJxX7bNIFlx6W3q5j1SX7GHtSFs91oS2VJm0acsd54lW0WxhSH+4U:UsAYDj8X7GHtEs9edzpzTNH+n

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\" %*"	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.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

pid	Process
1756	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\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msptr32.exe"	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msptr32.exe"	spoolsv.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
File created	C:\Windows\SysWOW64\msptr32.exe	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
File opened for modification	C:\Windows\SysWOW64\msptr32.exe	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
File created	C:\Windows\SysWOW64\concp32.exe	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\spoolsv.exe	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
File opened for modification	C:\Windows\spoolsv.exe	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 28eb7ce507ea43f4a158f8fd41d82da3	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	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\{D32805EE-8B9A-11D5-EBA1-F78EEEEEE983}	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
864	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 864 wrote to memory of 1756	864	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe	27
PID 864 wrote to memory of 1756	864	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe	27
PID 864 wrote to memory of 1756	864	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe	27
PID 864 wrote to memory of 1756	864	b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe	27

C:\Users\Admin\AppData\Local\Temp\b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.exe
"C:\Users\Admin\AppData\Local\Temp\b4ccd84e6313bef201788d8beb998f8ff7ccb7e0da86f9291e32517173aadd8a.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:864
- 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:1756

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
373KB

MD5
b6e62177bc9ce293b451f103f8472b5c

SHA1
32a841ad3146a401bb782135ff617d6259088f3c

SHA256
d2f7c6b9964a292f6941a29d9117302c379f73af83fd9aad964b368267973aca

SHA512
acedd400f7a3ae6cdf2ff58c4e702e79fb98f2004364c5e4ccd53450c8c32cec585bf1df5ea0375b7b4b588524d9aa16ec9d9250862eda22398032f298957c6c

Download Submit
memory/864-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/864-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1756-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1756-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads