e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc

General

Target

e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
Size

557KB
MD5

81b6860abcad59bb78d79efc5b2060da
SHA1

882af00e166f4d9f2739802289e1fe6720fa756f
SHA256

e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc
SHA512

40a5557e360a4abb6a1156044ba10c27306ab9fa5fb315065ea84b33620d2c368adf02a6d945c3eec746aff4b6888eba0a3a412264948a34328e077963ad2c33
SSDEEP

12288:ntKe6Zv23YeVOsiFKClC1N9WjXJTm1P5n3tJz5RwakMYc3iSMjjCJLzxA:76Zv2lZiFTq9W7Nm1R58O3Oie

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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F862E44C-8B9A-11D5-EBA1-F78EEEEEE983}	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F862E44C-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mstyj32.exe"	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.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\" %*"	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.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"	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\concp32.exe	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
File created	C:\Windows\SysWOW64\vcl32.exe	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
File created	C:\Windows\SysWOW64\mstyj32.exe	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
File opened for modification	C:\Windows\SysWOW64\mstyj32.exe	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
File created	C:\Windows\SysWOW64\concp32.exe	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
212	2000	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	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F862E44C-8B9A-11D5-EBA1-F78EEEEEE983}\ax = d993975584e56c5e89b47afb22654f8b	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F862E44C-8B9A-11D5-EBA1-F78EEEEEE983}	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F862E44C-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F862E44C-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2000	e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe

C:\Users\Admin\AppData\Local\Temp\e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.exe
"C:\Users\Admin\AppData\Local\Temp\e541c22fe890d8b5d73a9fe55b163b12885e270bc0b00bc7bfa7ce4c455221fc.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:2000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 768
  2⤵
  - Program crash
  PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2000 -ip 2000
1⤵
PID:1684

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
561KB

MD5
aca722d80b3ce35fb9f97fefb2e6bd35

SHA1
f58c64c73b8dda2e774a72ea42e6d9990faee633

SHA256
28a2a8e8013ecb161f07991a7ff223c8e94252e6ec1bf163db7d1523ab1ef85d

SHA512
9e6e9e0d5250dfbee7f7f209beece8432dc1fa18883638715bc9411b92f5d28f123659e141eceaedafa02620dfd84a46d49a5466261e4e8fd1402f1bc7d5a1b9

Download Submit
memory/2000-0-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2000-7-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads