336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959

General

Target

336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Size

344KB
MD5

8b5f757fe85cc8135ce3dfb9d2876194
SHA1

4f083da6fa01e960f0211e9b119d1ac2f888abf5
SHA256

336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959
SHA512

910595cd7d70cb81725a978e1194567584c2e5e6b07558bcea3dce0eac39ac62fa6d162a0f57b0328af42b0e99fb8a27667997428f37c84540bc17ae09708ff9
SSDEEP

6144:MRAhhJxX7bNIKTQ/ary6Gpu8A4f1vgSg2s/EZrdL56ITXEzKXvLSj4sLbH:UsAL/WBvU1s2ssZrdMIhXOjtT

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\" %*"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.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
1768	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\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mstcx32.exe"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mstcx32.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"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.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

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File created	C:\Windows\SysWOW64\mstcx32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File opened for modification	C:\Windows\SysWOW64\mstcx32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File created	C:\Windows\SysWOW64\concp32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File created	C:\Windows\SysWOW64\vcl32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\spoolsv.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File created	C:\Windows\spoolsv.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5577E300-8B9A-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\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}\ax = d168da1cf6f198a84b8406680704b964	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5577E300-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1204	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 1768	1204	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe	27
PID 1204 wrote to memory of 1768	1204	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe	27
PID 1204 wrote to memory of 1768	1204	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe	27
PID 1204 wrote to memory of 1768	1204	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe	27

C:\Users\Admin\AppData\Local\Temp\336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
"C:\Users\Admin\AppData\Local\Temp\336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.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:1204
- 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:1768

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
347KB

MD5
99e24ba01ff4d78c0e93ba9662c98773

SHA1
c229c18574608236886f2986c7e7db695904ca0a

SHA256
64267a4959d3f60cbb67b8b587d0809c563c3af110e46198d618ca19711e2b33

SHA512
b26846e9fe5353ee6906ce694426972b3c68104c3e4d138bc7c8ff917007960544eda3b1936c37068698166c8530aa5f73af3df26e1bb1a956524c93120a25aa

Download Submit
memory/1204-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1204-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1768-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1768-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads