3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715

Analysis

max time kernel
364s
max time network
381s
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, 19:32

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General

Target

3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
Size

407KB
MD5

5310057c4dd36496fbf3c99c47f000e0
SHA1

0109272e442ad0f0d8efea011037594e3d5ca61f
SHA256

3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715
SHA512

85ea6fbcf93dc69a118b88023a95a19a7326a96f0b6aaecb646aa4aae5f49cfcb808c7890754248eaef095d14db59de43fd4267dfbfdff7706352c6be13dee12
SSDEEP

6144:MRAhhJxX7bNINTf4cC05nh+H0VSX138j/AB8uGVILSY4noXCeVf0CNf5SvG:UsAqMGHGSX1388BxGVILSY4oSe5/5L

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\" %*"	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.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\{53FF2899-8B9A-11D5-EBA1-F78EEEEEE983}	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{53FF2899-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mstrn32.exe"	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.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"	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\concp32.exe	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
File created	C:\Windows\SysWOW64\vcl32.exe	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
File created	C:\Windows\SysWOW64\mstrn32.exe	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
File opened for modification	C:\Windows\SysWOW64\mstrn32.exe	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4348	1960	WerFault.exe	80

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53FF2899-8B9A-11D5-EBA1-F78EEEEEE983}	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53FF2899-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53FF2899-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53FF2899-8B9A-11D5-EBA1-F78EEEEEE983}\ax = f031a373ee76369ab033b4ac6f1f2261	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1960	3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe

C:\Users\Admin\AppData\Local\Temp\3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.exe
"C:\Users\Admin\AppData\Local\Temp\3fa4bccd99729936f068ac5205faa52ac1fde151a65740cdce73f05d7511c715.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:1960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 736
  2⤵
  - Program crash
  PID:4348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1960 -ip 1960
1⤵
PID:3044

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

Replay Monitor

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Downloads

memory/1960-132-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

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