3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a

Analysis

max time kernel
153s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2022, 15:40

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General

Target

3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
Size

184KB
MD5

04a894f696c11abeb77b5f845159b7f1
SHA1

705bb4f77ef157b177fe5cfc75e406338b032173
SHA256

3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a
SHA512

a1042177f6d3f0bf079c5fbb37eeb8070c49da604d4ba6937f757b4d402bbae254f1f76adb024192dcfa55cc05f4b8732f4df0034a59705d523cc1e4491086cd
SSDEEP

3072:MRAhhcsxgAJuK7bZD01GoI0ON27Usy3/ROzTU9YMftqr40hteO4UNuTEHEgi+IgT:MRAhhJxX7bNIAROzTuft840hkkPJFT

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\" %*"	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.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\{B214EB1C-8B9A-11D5-EBA1-F78EEEEEE983}	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{B214EB1C-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msilt32.exe"	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.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"	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
File created	C:\Windows\SysWOW64\msilt32.exe	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
File opened for modification	C:\Windows\SysWOW64\msilt32.exe	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
File created	C:\Windows\SysWOW64\concp32.exe	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1116	4872	WerFault.exe	53

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B214EB1C-8B9A-11D5-EBA1-F78EEEEEE983}	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B214EB1C-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B214EB1C-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B214EB1C-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 80eb798002847b50d0f5b1c31ec9bed4	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4872	3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe

C:\Users\Admin\AppData\Local\Temp\3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.exe
"C:\Users\Admin\AppData\Local\Temp\3cbef34cc3a5c296f343b0f87f96f77c6d4cad5dc73e79ac660a50630474c73a.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:4872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 760
  2⤵
  - Program crash
  PID:1116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4872 -ip 4872
1⤵
PID:3008

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/4872-132-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

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