fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137

General

Target

fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
Size

682KB
MD5

077c817320c41117e57fa13cf0102256
SHA1

23019314c25d16c07730dc7045e1ce573a36c59f
SHA256

fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137
SHA512

b47d7b9d3ce4a4127d097ebea7d5a5ed0d2d82f77303c816dca265578f9b1ae638c73bad2abb78f916743c943b0789ce45fdd460f2c195ad4186d6f76782e79b
SSDEEP

12288:UsA1mIRjZp9IyTFCMXSWEOIsgsg+8nS+KXVs2cRZxeACeJJ5/lFgsuH:UsnIPp9IyTFC00OIswnS+uQn3/lFO

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\" %*"	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.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
1528	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\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msbct32.exe"	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msbct32.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msbct32.exe	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
File opened for modification	C:\Windows\SysWOW64\msbct32.exe	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
File created	C:\Windows\SysWOW64\concp32.exe	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
File created	C:\Windows\SysWOW64\vcl32.exe	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\spoolsv.exe	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
File opened for modification	C:\Windows\spoolsv.exe	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42C48C5-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 1e120ff8757b3e3294da83530a95deec	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
916	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 1528	916	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe	27
PID 916 wrote to memory of 1528	916	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe	27
PID 916 wrote to memory of 1528	916	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe	27
PID 916 wrote to memory of 1528	916	fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe	27

C:\Users\Admin\AppData\Local\Temp\fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.exe
"C:\Users\Admin\AppData\Local\Temp\fb5bc0106deb7dd732f64babc959b32307acec8050c496a67b0128455007d137.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:916
- 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:1528

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\spoolsv.exe

Filesize
687KB

MD5
7049af30ab55824591edafa6ddc6ecc7

SHA1
604fb7c2ed93fedad34a42febd77ffce732ff995

SHA256
6947760f3e93b60a779a775cd8ce3681dfee953abca503544a417ff92e5d4ea8

SHA512
39aaa4db617f9aa465ca77fb3242484cd2c84674123e950aa69b09e35080cead46417f7523340f2bf3260e72b6c9dbbffd18c95ee00953811be0ee6d5c41658e

Download Submit
memory/916-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/916-57-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1528-58-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1528-59-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads