17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745b

General

Target

17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
Size

525KB
MD5

abba7f45f81a0f78b9bcb8d06589f9f0
SHA1

8bc35d466f7398613482f8d3b73edb14ca8a7baf
SHA256

17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745b
SHA512

4627d2a570b61eacb021ac1ae944abecc29078628b1b5557a03b0eac9e75d04a81a771158654f14799a1c160c4460ab9550d4e0755da9826c56d2feb97adf837
SSDEEP

12288:UsAqMGHGSX1388BxGVILSY4oSewnvFdCWDOKGXCBffXA:UsBbWOSY4HewnvFdTDwSBQ

Score

8^/10

discovery persistence

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2B1D63B7-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msfyi32.exe"	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2B1D63B7-8B9A-11D5-EBA1-F78EEEEEE983}	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe

Modifies system executable filetype association 2 TTPs 1 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\" %*"	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe

Adds Run key to start application 2 TTPs 2 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"	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\msfyi32.exe	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
File created	C:\Windows\SysWOW64\concp32.exe	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
File created	C:\Windows\SysWOW64\vcl32.exe	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
File created	C:\Windows\SysWOW64\msfyi32.exe	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4876	4180	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 1 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	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2B1D63B7-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2B1D63B7-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2B1D63B7-8B9A-11D5-EBA1-F78EEEEEE983}\ax = c122acd68634263cfd9ae49e3dd0d7df	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2B1D63B7-8B9A-11D5-EBA1-F78EEEEEE983}	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4180	17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe

C:\Users\Admin\AppData\Local\Temp\17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.exe
"C:\Users\Admin\AppData\Local\Temp\17706175c0994a2291a3c26c495328dfd1c2874a2665a2588afb465c6df0745bN.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
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:4180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 728
  2⤵
  - Program crash
  PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4180 -ip 4180
1⤵
PID:4856

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
529KB

MD5
f255500e48c88962f9f8eef3dd01bb20

SHA1
1835ca411ea8efa3057191714c8116b9bf082946

SHA256
c0911d62b534a62d63f3d09d7c62c3823cef42283e2431cbdf365c08ad05a669

SHA512
518df2260c3709757538f4ad09ea9f341495c202475558bfd3ea40d10e135b10666474212c0d6bdd0e0256bc3448651e84dc00cf7420ae88a37e6d67fbf773b1

Download Submit
memory/4180-0-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4180-7-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads