6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278

General

Target

6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
Size

73KB
MD5

8a83dcfe436b7a936b9d4de87d9c80f7
SHA1

73af495a6476f89d6c2be56128e1039db66119b5
SHA256

6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278
SHA512

6d1cb79aa8d7a80d5f3945a88cf2894fa92cc307d74e6a087ac6fa1e8561a7ecddeda0119391a6281683a1a7a82e9ae5d673afc1031b430f2795c4513a48f212
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOn:RshfSWHHNvoLqNwDDGw02eQmh0HjWOn

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
396	rundll32.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.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

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
File created	C:\Windows\SysWOW64\¢«.exe	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
File created	C:\Windows\system\rundll32.exe	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697279637"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697279637"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.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	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
396	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
396	rundll32.exe
396	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4156 wrote to memory of 396	4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe	88
PID 4156 wrote to memory of 396	4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe	88
PID 4156 wrote to memory of 396	4156	6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe	88

C:\Users\Admin\AppData\Local\Temp\6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe
"C:\Users\Admin\AppData\Local\Temp\6cd54a3df40cc37b457775d9954521fbe51089834ede9acc3a4203b67028a278.exe"
1⤵
- 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:4156
- 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:396

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
74KB

MD5
28c133d951d256d97c3277cdad7a1918

SHA1
ea2e7b5603a1775c5dbfdf6b1e2eeacf173a39b6

SHA256
c79df9d468536c2494009d27b1881feb6b07998a79ce778d81766a1027be624e

SHA512
d7b53a2d5798c181789f4b6f2f97f89d3432ed09bf71d8efc2ef17f3cf35f4f860bfc8f0933739e71e6c06fbb9165b84214f40920a3f38881e1ed7b489aa74f1

Download Submit
C:\Windows\System\rundll32.exe

Filesize
78KB

MD5
cf053b08a4a277c0bf51ec33840971d0

SHA1
0b56aec9efa55a9836b3c75a49f62d60dc522435

SHA256
0962cafd1b2396b6dd4d6fef8bbbaed7917766f3452a21d835d92a5f5f5af524

SHA512
2599164ec530c09bd638029643ce734a6fb15f2b0f5e1a30e28f103593095adf6261dcdf1b6fe0ebac2d90a150331e7f196d18275335de267ae73e3adc1a02ef

Download Submit
C:\Windows\system\rundll32.exe

Filesize
78KB

MD5
cf053b08a4a277c0bf51ec33840971d0

SHA1
0b56aec9efa55a9836b3c75a49f62d60dc522435

SHA256
0962cafd1b2396b6dd4d6fef8bbbaed7917766f3452a21d835d92a5f5f5af524

SHA512
2599164ec530c09bd638029643ce734a6fb15f2b0f5e1a30e28f103593095adf6261dcdf1b6fe0ebac2d90a150331e7f196d18275335de267ae73e3adc1a02ef

Download Submit
memory/396-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4156-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4156-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads