f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3

General

Target

f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Size

402KB
MD5

4248d006d6c66077043c42a11c30dfb8
SHA1

38d0733d4f5c573512b34001c7a17ced8f25ae07
SHA256

f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3
SHA512

e0dc4e067a0a05831f1d5165abbde9f23cf69433d5f5c68b956ef5d47c87f8d7c93b5d52e66495bd93c39adc49e1320e6450c58a169478dcffac76ace5a66d30
SSDEEP

12288:ntKe6Zv23YeVOzpVwzDGAx8LKU2j2HS3UVHTn:76Zv2lQMRxa1c60UR

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\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msdor32.exe"	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msdor32.exe"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2684	svchost.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\" %*"	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.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"	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
File created	C:\Windows\SysWOW64\msdor32.exe	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
File opened for modification	C:\Windows\SysWOW64\msdor32.exe	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
File created	C:\Windows\SysWOW64\concp32.exe	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.exe	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
File created	C:\Windows\svchost.exe	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.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	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 17df404b476763a705250eee0fd816eb	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4321B2D0-8B9A-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
2764	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2684	2764	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe	31
PID 2764 wrote to memory of 2684	2764	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe	31
PID 2764 wrote to memory of 2684	2764	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe	31
PID 2764 wrote to memory of 2684	2764	f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe	31

C:\Users\Admin\AppData\Local\Temp\f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.exe
"C:\Users\Admin\AppData\Local\Temp\f572fd51f971f4037599fae0ab87eee9acb3897a3e0fedd8bf4a166b8719e1e3.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:2764
- C:\Windows\svchost.exe
  C:\Windows\svchost.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:2684

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
404KB

MD5
685bb2dcb8319f5cb4a7499e3be6b748

SHA1
8bd2027a525e75273864139b9dcfb2dc273f4fbc

SHA256
84a93b23d6fff40438d4570b7dacbf0cac1b65ce62c4de3c74625b9e9849aa40

SHA512
40d9bc31ef04c5e082319a1babca9839d1f122dfda3835502b1bca0cbb0b7f86764178bdbabc903c43bbb304f6c2fdd2a937e7f25a4ed138248caf78f3cdf2e7

Download Submit
C:\Windows\svchost.exe

Filesize
406KB

MD5
a11745d7f2ed50b33d6ae8e0e3ecf5da

SHA1
bd8585798f14fd7b42a668de7ef233867ce637e2

SHA256
62df08520e3ea7d0c558403b96f400526d32338a5cc29841ae2188063d7462f1

SHA512
e7e515b1a607469bcb41d6239032f2163f178bc44e4f295e1b7f2b17fe085d1d0cfb0b57f3e47cfef54b40964f9c447a42f6d4450c3e2ae591205bc467da288a

Download Submit
memory/2684-15-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2764-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2764-14-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads