73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca

General

Target

73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Size

402KB
MD5

a124fcda543cf75bab3ea2f82fbf75a1
SHA1

4e8602d5944478ce868f64020d3e4b5c404ecb2d
SHA256

73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca
SHA512

c20fb3fd7eecef5f70e47fa58f0e2f12dbe19ada71f7e53020c96ad70e0ccd8761ba68eaac92f31e49971a758cd01957c30f8c4e982be288098a218691644cad
SSDEEP

6144:MRAhhJxX7bNIAROzTuaPUD8XRufY7L3oxXTwMJUbwHANxUfRIFRZRlxqFPMPazij:UsAAPaPUD1SYzJuwHAgJIFRtxZZj

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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1052	svchost.exe

Modifies Installed Components in the registry 2 TTPs 4 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\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msflh32.exe"	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msflh32.exe"	svchost.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
File created	C:\Windows\SysWOW64\msflh32.exe	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
File opened for modification	C:\Windows\SysWOW64\msflh32.exe	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
File created	C:\Windows\SysWOW64\concp32.exe	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
File created	C:\Windows\SysWOW64\vcl32.exe	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
File opened for modification	C:\Windows\svchost.exe	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\ax = cd804500037a8b666dd304cd9908ab4f	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B74C2E3F-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1424	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1424 wrote to memory of 1052	1424	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe	26
PID 1424 wrote to memory of 1052	1424	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe	26
PID 1424 wrote to memory of 1052	1424	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe	26
PID 1424 wrote to memory of 1052	1424	73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe	26

C:\Users\Admin\AppData\Local\Temp\73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.exe
"C:\Users\Admin\AppData\Local\Temp\73542c0b8bb4b290bcc7349bcf68996ea4fc9c3c91fdf33e3a572fb75e9b31ca.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:1424
- C:\Windows\svchost.exe
  C:\Windows\svchost.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:1052

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

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Downloads

C:\Windows\svchost.exe

Filesize
402KB

MD5
787321ac86f784c6039aed0ebad3a924

SHA1
f5c1c9138418593264cde6df6bfbd7dce002de15

SHA256
7c626b3960bb39a3c88654605e0f54c8952c41ca413665bd994685d6141ca71f

SHA512
10adbf378b4c5a9f785d3235849a34385352a81a30475e7fc113f822b4ad0aa60f5444133df8b1afcee0eebd2f351b18b5c1e4ce8a38b6a9d492b3b70ca7177d

Download Submit
memory/1052-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1052-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1424-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1424-56-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads