72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a

General

Target

72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
Size

369KB
MD5

81616d1486b71caed0e1400dca486750
SHA1

45594732b236e5ebd0e9965a58b3daa52424898a
SHA256

72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a
SHA512

30fdb821e62712115b0fa881a0f9426cd5808dcc3adecb74a0edaaf639413b6295a2760ff85e1d42afabe13a34654c01a13daed790e0c80633fa533eb4b2cf9c
SSDEEP

6144:MRAhhJxX7bNIAROzTuaGzLcv0vs+Tt9GtJpJ0fsj+YnKu/k336qrpN:UsAAPaGgN+7GJcU/kn6qVN

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\" %*"	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.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
1640	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\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msxeo32.exe"	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msxeo32.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"	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.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 created	C:\Windows\SysWOW64\vcl32.exe	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
File created	C:\Windows\SysWOW64\msxeo32.exe	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
File opened for modification	C:\Windows\SysWOW64\msxeo32.exe	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
File created	C:\Windows\SysWOW64\concp32.exe	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\spoolsv.exe	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
File opened for modification	C:\Windows\spoolsv.exe	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 0d7a068cbabe6acbe28756ab4a2dc875	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5B93106D-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\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5B93106D-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1692	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 1640	1692	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe	28
PID 1692 wrote to memory of 1640	1692	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe	28
PID 1692 wrote to memory of 1640	1692	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe	28
PID 1692 wrote to memory of 1640	1692	72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe	28

C:\Users\Admin\AppData\Local\Temp\72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.exe
"C:\Users\Admin\AppData\Local\Temp\72b1bf8fcad6a97cafacc9a7887ae43ed423dd725b12b7052b86be6fc04c664a.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:1692
- 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:1640

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
371KB

MD5
cdb2703957d8582137f024493b0560b2

SHA1
07585535b650f770599c63bb55a6eef81c2b1936

SHA256
71e1ca7dec84113d428593d91ccfff720064c2c069307d5ed483dba981fcfe0e

SHA512
f74eaceaaffeccb6c771b0aedecefbf59e9cd70fc871d9fbefd1e48c68835fed57121db51d73a1c8f59f475c7ba04ab9bcb4f8a3aacd36d433662da4834a1aab

Download Submit
memory/1640-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1640-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1692-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1692-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads