a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39

General

Target

a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Size

270KB
MD5

96e9f63203c94e033ba8d9dbdccdf755
SHA1

14da76aa8bf9da771cb767534bf9ceecf65ec244
SHA256

a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39
SHA512

6d70a9fae8ae3e79d89ade69491e36bde1c22a679918fa45ec7031badd713ae8b9408a88e0e88f157104cba367f4de26ef06e4be13b6b5b17464fb1f78162359
SSDEEP

6144:MRAhhJxX7bNIAROzTuaPUD8XRuf0b4mt/HLIhTWRlb3nZbgI+:UsAAPaPUD18t/HkSlblY

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\" %*"	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.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
1268	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\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msxsp32.exe"	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msxsp32.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\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
File created	C:\Windows\SysWOW64\msxsp32.exe	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
File opened for modification	C:\Windows\SysWOW64\msxsp32.exe	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
File created	C:\Windows\SysWOW64\concp32.exe	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\spoolsv.exe	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
File opened for modification	C:\Windows\spoolsv.exe	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\ax = f2ad6d617adf743b39571718a0648c55	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1368	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 1268	1368	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe	27
PID 1368 wrote to memory of 1268	1368	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe	27
PID 1368 wrote to memory of 1268	1368	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe	27
PID 1368 wrote to memory of 1268	1368	a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe	27

C:\Users\Admin\AppData\Local\Temp\a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
"C:\Users\Admin\AppData\Local\Temp\a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.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:1368
- 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:1268

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
275KB

MD5
7a63a7580c34ae592c261adef0d1f13a

SHA1
4c167befe9906797d02d15a979059f09368e7b52

SHA256
94180e3f579faa2ba2eb88cbb3513ee957faa67d215ec625816b0bc3ea8a700a

SHA512
91ad3648c9cab3d820b99f14e7d0e9459250b5ae2b3eb191848f88f7f28803005f3426d3233dd6ad69784e940612ec87a556bf115bcf534d3012f96a45a82ad9

Download Submit
memory/1268-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1268-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1368-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1368-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads