a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d

Analysis

max time kernel
91s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 18:19

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General

Target

a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
Size

430KB
MD5

ba0581c0e12eabc1248d617a3aae5507
SHA1

f3135cbe42b9b40a0a69641c4f050dc2bcda27cc
SHA256

a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d
SHA512

acd6c861ae622c24d561ea92862fea5687d996f43274ea85afe08c78113e4840ee7cd52d55dadd2eaff5c1301e0a90e94b1b834052f0e570685555df56804787
SSDEEP

6144:MRAhhJxX7bNIFlJYe5hhb3vKNLqYHujNnoYC+LMcRxTCaD2iau7NojI6xZ2t:UsA1pb3Q2NOcRhCaD23uO/HY

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\" %*"	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.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\{C8D27417-8B9A-11D5-EBA1-F78EEEEEE983}	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{C8D27417-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msned32.exe"	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.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"	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msned32.exe	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
File opened for modification	C:\Windows\SysWOW64\msned32.exe	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
File created	C:\Windows\SysWOW64\concp32.exe	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
File created	C:\Windows\SysWOW64\vcl32.exe	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3508	4572	WerFault.exe	75

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C8D27417-8B9A-11D5-EBA1-F78EEEEEE983}	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C8D27417-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C8D27417-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C8D27417-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 05fedabcf432ed0ea895ffb7c57f0f6d	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4572	a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe

C:\Users\Admin\AppData\Local\Temp\a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.exe
"C:\Users\Admin\AppData\Local\Temp\a2c8764f6c223807b01490cc4040d23200b9e94641a6978e3fc4a4ccc5c6811d.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:4572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 720
  2⤵
  - Program crash
  PID:3508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4572 -ip 4572
1⤵
PID:3120

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/4572-132-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

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