3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29

Analysis

max time kernel
192s
max time network
216s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 18:19

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General

Target

3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
Size

269KB
MD5

4fb5d74e49f64ee85d75f360aad52666
SHA1

c6aa0f9f799594948f0188efa79d1c032b7861ba
SHA256

3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29
SHA512

eed7254c004de8c89399dec6fd31a391471532eaa0773bc3d088438fd4b063f07c4f1d3a87967b214225376bfa678780c2077e36f50b7ba2faa0e35761926022
SSDEEP

6144:MRAhhJxX7bNIFlu6bD/BKJVmtpwoh7l4Mnwzy+QIyY5dMUmOJ:UsAnbpDn7l4Rzy+QIyqd1

Score

10^/10

persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 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\" %*"	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe

Modifies Installed Components in the registry 2 TTPs 2 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\{8B36E20C-8B9A-11D5-EBA1-F78EEEEEE983}	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{8B36E20C-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msxin32.exe"	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe

Adds Run key to start application 2 TTPs 2 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"	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\msxin32.exe	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
File created	C:\Windows\SysWOW64\concp32.exe	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
File created	C:\Windows\SysWOW64\vcl32.exe	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
File created	C:\Windows\SysWOW64\msxin32.exe	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5040	2824	WerFault.exe	81

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8B36E20C-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8B36E20C-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8B36E20C-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 62682dd2c81a3d7229d911c86a3ba388	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8B36E20C-8B9A-11D5-EBA1-F78EEEEEE983}	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2824	3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe

C:\Users\Admin\AppData\Local\Temp\3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe
"C:\Users\Admin\AppData\Local\Temp\3aa5f35483a81bcead6c56c35bb2943e8b95c1e8f53fa8553ce3cb1517618f29.exe"
1⤵
- Modifies system executable filetype association
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:2824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2824 -s 712
  2⤵
  - Program crash
  PID:5040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2824 -ip 2824
1⤵
PID:2124

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2824-132-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

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memory/2824-133-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download