7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3

General

Target

7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Size

678KB
MD5

6984a2c2aca19a1f5ec86968480ef4c0
SHA1

80529c7e252c67f39a52155df97073dd4e329836
SHA256

7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3
SHA512

f09efc3fa31293d9d54db3cedcb62a22574fa9d9359cb13846cc2f683a7385b6250797e8e3da5e967d7980f40f088fc2f13da27d43cd0a38b71574bc89da1a89
SSDEEP

12288:UsAAPaPUD18t/R/OgRs6dBFnD0YvK2CSzfCoJ6BvlJ/K4l5y/fOPSn5nA:UsMP7tMEs6dfoYvZfRJ0vlJS4f25A

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\" %*"	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	spoolsv.exe

Executes dropped EXE 1 IoCs

pid	Process
976	spoolsv.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\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msprc32.exe"	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msprc32.exe"	spoolsv.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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msprc32.exe	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
File opened for modification	C:\Windows\SysWOW64\msprc32.exe	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
File created	C:\Windows\SysWOW64\concp32.exe	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
File created	C:\Windows\SysWOW64\vcl32.exe	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\spoolsv.exe	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
File opened for modification	C:\Windows\spoolsv.exe	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 6c2a3f2a970031be53e167802c571d60	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8E8A3138-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1968	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 976	1968	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe	28
PID 1968 wrote to memory of 976	1968	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe	28
PID 1968 wrote to memory of 976	1968	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe	28
PID 1968 wrote to memory of 976	1968	7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe	28

C:\Users\Admin\AppData\Local\Temp\7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.exe
"C:\Users\Admin\AppData\Local\Temp\7a03acd72534bfcf46270e69c77a120528604fb296fb94cd41ef0183af2bb1c3.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:1968
- C:\Windows\spoolsv.exe
  C:\Windows\spoolsv.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:976

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\spoolsv.exe

Filesize
678KB

MD5
e752419f08b489220028d00048f7b52b

SHA1
25dce544a3ac99833762104f414ead00acd670f4

SHA256
3afed4757faf0913f2079cd1d156f6360a365b4d56e0dc6e559fb505ac79b986

SHA512
3fe42a8cf80a1f67b33ae20abff39b2301402299588bcfa7c715be60f0393c7201f40142c2bb5d11c537f1b5174f3b03d77b26351ba16f62dbb5de2e29c8efe2

Download Submit
memory/976-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/976-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1968-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1968-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads