66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8

General

Target

66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Size

310KB
MD5

272460e3de7487d81f5f7ba9fb83566d
SHA1

db94a4b78d28444184616824ce0484cacf7015a0
SHA256

66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8
SHA512

9fc81deab925524b9e75c6595995e5c3455effdeb1f323b86cda7b88ca3384e64094ee969b0a5a7b2e3e28714ac55868873f858b9cc446bb535eb57f7273088b
SSDEEP

6144:MRAhhJxX7bNIFlJYe5hhbc9FTPweiR0raYlKiRltv2:UsA1pbaw09lKiRltv2

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:

66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.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

1056 spoolsv.exe

pid	process
1056	spoolsv.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exespoolsv.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mstqc32.exe"	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mstqc32.exe"	spoolsv.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

spoolsv.exe66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe

Drops file in System32 directory 6 IoCs

Processes:

66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe

description	ioc	process
File created	C:\Windows\SysWOW64\vcl32.exe	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
File created	C:\Windows\SysWOW64\mstqc32.exe	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
File opened for modification	C:\Windows\SysWOW64\mstqc32.exe	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
File created	C:\Windows\SysWOW64\concp32.exe	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe

Drops file in Windows directory 2 IoCs

Processes:

66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe

description	ioc	process
File opened for modification	C:\Windows\spoolsv.exe	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
File created	C:\Windows\spoolsv.exe	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe

Modifies registry class 12 IoCs

Processes:

66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exespoolsv.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 520ae5764ef2a92dcf282089451c45a0	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D5AE15D4-8B9A-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\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D5AE15D4-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe

pid process

2036 66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe

pid	process
2036	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe

description	pid	process	target process
PID 2036 wrote to memory of 1056	2036	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe	spoolsv.exe
PID 2036 wrote to memory of 1056	2036	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe	spoolsv.exe
PID 2036 wrote to memory of 1056	2036	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe	spoolsv.exe
PID 2036 wrote to memory of 1056	2036	66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe	spoolsv.exe

C:\Users\Admin\AppData\Local\Temp\66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.exe
"C:\Users\Admin\AppData\Local\Temp\66ee7fb497df379d1f1de2919acb9697c491f0ec9770fb065ed9edb223e1d7a8.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:2036
- 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:1056

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
311KB

MD5
d87b02b9911cb987bad1ed765efdf344

SHA1
9084a7ea8a7f10ee781eee40824726141e4d7aa3

SHA256
a23440e47456aed379886f827b42c5874e8f4e3aa4230f54e568f84838a4f917

SHA512
4cd61c69b2105cbc90f92c5853a48fc95b6c654913fcd9ca8fddc929ae21709d7bf18d145e9c47aaeb61e8e4dafe7843a2ddec197990e73689a45ab7cdf58368

Download Submit
memory/1056-55-0x0000000000000000-mapping.dmp

Download
memory/1056-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1056-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2036-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2036-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads