f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355

General

Target

f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
Size

425KB
MD5

964d9d9150e539dff6dc1c673d373b94
SHA1

b35d3b9ae6827cd87d41cce86ff592c269606da4
SHA256

f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355
SHA512

fdae54c8f71e77feab29d9e79ec32c245ab8d46625c7642df782d372d06d9b724849c2ce2a518adaae7f58b9bcd2f7cd77aeb2be3780eb9de322b85152583c45
SSDEEP

12288:NtKe6Zv23Yd1mIRjZp9IyTFCMXSWEOIQVufUob21fi//23r:d6Zv2VIPp9IyTFC00OZufUob2hiX2b

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\" %*"	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.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
1120	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msgng32.exe"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msgng32.exe"	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}	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"	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.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

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
File created	C:\Windows\SysWOW64\msgng32.exe	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
File opened for modification	C:\Windows\SysWOW64\msgng32.exe	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
File created	C:\Windows\SysWOW64\concp32.exe	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
File created	C:\Windows\SysWOW64\vcl32.exe	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\spoolsv.exe	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
File opened for modification	C:\Windows\spoolsv.exe	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe

Modifies registry class 12 IoCs

description	ioc	Process
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\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 42d098a42386bd4e8ecc1545be9e9dbb	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4ED884F0-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1456	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 1120	1456	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe	28
PID 1456 wrote to memory of 1120	1456	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe	28
PID 1456 wrote to memory of 1120	1456	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe	28
PID 1456 wrote to memory of 1120	1456	f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe	28

C:\Users\Admin\AppData\Local\Temp\f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.exe
"C:\Users\Admin\AppData\Local\Temp\f6903bdc8e406d0f679658726de4f6ef1d918046f429ecba7dcb1c0309294355.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:1456
- 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:1120

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
426KB

MD5
26bd6090ac6ed9f06e2a3d1373f1a902

SHA1
d466798240d35c67e8c5e03c0755e1de300cd633

SHA256
2706823ac98bad7c4b691d25fc26b1d6064368a859ddc6c590d3e1dbb77dcca4

SHA512
256a92a6c6d1aedbd1e5c8cb19906b50b62825ed51da9aa87b63a1f17f1723c48c133775958a77ffefedd192af51ccf1a84e79ade430def400bc55d5f63e0b61

Download Submit
memory/1120-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1120-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1456-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1456-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads