c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e

General

Target

c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
Size

74KB
MD5

c4ea4a03aa1787ba71249b1d4168fa74
SHA1

d86d1a6568dbb8e3a448594005c17c4bcf16d5ae
SHA256

c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e
SHA512

272d2ac847f2d526ce84a7c02c818b44eeae853afb9a65cf7eacb215c68c2d076e368d380199c4a79c435286f25f9d662f75dba3d0560f577954b0e69ded8163
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO9m:RshfSWHHNvoLqNwDDGw02eQmh0HjWO9m

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3000	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe

Modifies system executable filetype association 2 TTPs 5 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\ = "\"%1\" %*"	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
File created	C:\Windows\SysWOW64\¢«.exe	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
File created	C:\Windows\system\rundll32.exe	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718145488"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718145488"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3000	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
3000	rundll32.exe
3000	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 3000	2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe	28
PID 2196 wrote to memory of 3000	2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe	28
PID 2196 wrote to memory of 3000	2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe	28
PID 2196 wrote to memory of 3000	2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe	28
PID 2196 wrote to memory of 3000	2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe	28
PID 2196 wrote to memory of 3000	2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe	28
PID 2196 wrote to memory of 3000	2196	c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe	28

C:\Users\Admin\AppData\Local\Temp\c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe
"C:\Users\Admin\AppData\Local\Temp\c6efb6bbb11027f44e6fe71b465c88b8d7423da37550a652157631f2977bdd4e.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
80KB

MD5
b5b9f6cd87ab3e68eef377753c997012

SHA1
ef0b0b46494bac746b32ebf589ae1c4ca495cc60

SHA256
681ef16845ab79b239972d749682462c5001b27663c830d4000e48317eeb3714

SHA512
43196ef39ff32f9dc6fb07f15f7a2f079c6ef1f5b2d35a5b4e7c3385352ba71bdbcf9f774aaff7d7e0167e0cd3cbecf34628c26eacfdeef1fbf2a720295058ed

Download Submit
\Windows\system\rundll32.exe

Filesize
83KB

MD5
704f79bdba20cdaf3c14b93f9d8b101c

SHA1
1db4839312a6850623899f4d57e07c7b36eae049

SHA256
1d8caab30a31b6055e0ad102666138ce37a9bc55d92d60652b2ecfe51e213229

SHA512
14a5db8bf5e610745fcbe62991b5c35a2f252a234edfefff2cd8dbe35ed6ac16222c2f55a8c9e114e8c9502713505a543929579ece42e93a5814d90018e8edc1

Download Submit
memory/2196-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2196-17-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/2196-18-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/2196-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2196-22-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/3000-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads