339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f

General

Target

339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
Size

381KB
MD5

584d4ca4cdda425c8202a251c1428cc0
SHA1

85e3b08bb8a6ff3b87f681ad7417bde64a3b4873
SHA256

339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f
SHA512

5ae7889cd63c96830c578f2bdba45d6ce37424f33bec6fd851c74b8200bbcba38fef815e224dd21fc3327ec870be2c02a9c8df44112a23ace84c77444e510285
SSDEEP

6144:MRAhhJxX7bNIKTQ/ary6Gpu8A4f1YDwzqOqe8Mu2eMI+5zaIU1tgsav:UsAL/WBvU1u6qOhFq+5GIU16sav

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:

339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.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

1720 spoolsv.exe

pid	process
1720	spoolsv.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

spoolsv.exe339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mssin32.exe"	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mssin32.exe"	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe

Drops file in System32 directory 6 IoCs

Processes:

339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

description	ioc	process
File created	C:\Windows\SysWOW64\concp32.exe	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
File created	C:\Windows\SysWOW64\vcl32.exe	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
File created	C:\Windows\SysWOW64\mssin32.exe	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
File opened for modification	C:\Windows\SysWOW64\mssin32.exe	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

Drops file in Windows directory 2 IoCs

Processes:

339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

description	ioc	process
File created	C:\Windows\spoolsv.exe	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
File opened for modification	C:\Windows\spoolsv.exe	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

Modifies registry class 12 IoCs

Processes:

spoolsv.exe339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

description	ioc	process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}\ax = c5c41d9dcb2317ff038a64824b4c0174	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{12BEB4B3-8B9A-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\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{12BEB4B3-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

pid process

1212 339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

pid	process
1212	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe

description	pid	process	target process
PID 1212 wrote to memory of 1720	1212	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe	spoolsv.exe
PID 1212 wrote to memory of 1720	1212	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe	spoolsv.exe
PID 1212 wrote to memory of 1720	1212	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe	spoolsv.exe
PID 1212 wrote to memory of 1720	1212	339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe	spoolsv.exe

C:\Users\Admin\AppData\Local\Temp\339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.exe
"C:\Users\Admin\AppData\Local\Temp\339f782bf2f2de9a986308b43311f346a443eec0e215df63304d229af89b826f.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:1212

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:1720

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
382KB

MD5
dd92aa10b402fc3d9b8d030172709f27

SHA1
573828bf5a40f73f4d83cd687ae91443113802f4

SHA256
d54040b74df2d1af617c0d69caffb1c3e745b5dd4b472e74e17fa9d24d924dc7

SHA512
84dc1b41be8b9e8723121a598e269a6a9a9d1002cf437d2d5ee05066740a8cffe7b93bb3142a693d350611259089f272db1776dd7624369a9bcc46a226e9b27f

Download Submit
memory/1212-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1212-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1720-55-0x0000000000000000-mapping.dmp

Download
memory/1720-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1720-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads