90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104d

General

Target

90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Size

350KB
MD5

0a0abe93a1e81a9f553312f30bd6a510
SHA1

a5028f7ff492db37a3c9345cce8633647e230319
SHA256

90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104d
SHA512

facc0562bfacd38205058393fc90f135627954ce9ab30ba3d94e3fb282afffefde645434f01575f8653deef634fa119512dbb6525f115932b57fd0234867b74e
SSDEEP

6144:HtKe6YiDdv3m3mgKHIP7bNIFlJYUvuc0jlgRBVI/bcHweNrLG:HtKe6Zv23Y31Juc0jKLBweNnG

Score

8^/10

discovery persistence

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msjap32.exe"	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msjap32.exe"	spoolsv.exe

Executes dropped EXE 1 IoCs

pid	Process
2572	spoolsv.exe

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	spoolsv.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	spoolsv.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
File created	C:\Windows\SysWOW64\msjap32.exe	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
File opened for modification	C:\Windows\SysWOW64\msjap32.exe	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
File created	C:\Windows\SysWOW64\concp32.exe	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\spoolsv.exe	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
File opened for modification	C:\Windows\spoolsv.exe	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 8e1702289542a2386c012c6f09d143f5	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	spoolsv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DBBF59F6-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1916	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2572	1916	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe	30
PID 1916 wrote to memory of 2572	1916	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe	30
PID 1916 wrote to memory of 2572	1916	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe	30
PID 1916 wrote to memory of 2572	1916	90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe	30

C:\Users\Admin\AppData\Local\Temp\90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe
"C:\Users\Admin\AppData\Local\Temp\90e0a3d4ed5ee7aec2f0d92d49d10a2d19c14d4cc40837a2bb571f51b197104dN.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Windows\spoolsv.exe
  C:\Windows\spoolsv.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\concp32.exe

Filesize
351KB

MD5
71ea8795366676a8b8a6495ecd26ff9f

SHA1
87c6317eaa1ffbd8b9802857be728ef7bda84ac3

SHA256
eadafd4d6518fdfe03d1e661187c8ae56b3b8b3a28e398d00d917a9ef4df87a8

SHA512
d0c3d5c8ca5f10eb5e8bccede6d3cdfd4d9cce59122b42ca07368921654f2b9f8e9a91b6c2df7da956f08e2c9d487d8e13546d412bc11cdee146db7a1e068ae1

Download Submit
C:\Windows\spoolsv.exe

Filesize
353KB

MD5
2bc531e382ff492b1442423d794242d0

SHA1
8f2f2be4abf02235ea0e88f09487e6dc70effa0b

SHA256
7e284e9798d4a40a73d7cf9dcf9487271af5c1b4d22888bed2e71635f4996bad

SHA512
688840522939e48694807bd726749a3a83e6e03631fa76acaf911b46b13ff7a40ba2727e4dd4d9674965ece08946d88e6783b19cbc4ba42ce0721779d2a6576d

Download Submit
memory/1916-0-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1916-14-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1916-13-0x0000000000220000-0x0000000000255000-memory.dmp

Filesize
212KB

Download
memory/2572-16-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads