a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377

General

Target

a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
Size

75KB
MD5

3be02027f7230401eee3c3ecd61f7414
SHA1

f2109f49988b492f7b7cfe30a204ea1aafe12f1a
SHA256

a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377
SHA512

0a0b348112983a845f3a708491b1ba6916a5c2c69e1485346b6e4c4d0e1ef6c8273dda1693c007cde463634524a8e072581536ff2ee5b49838b7bda383ba664a
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOyh:RshfSWHHNvoLqNwDDGw02eQmh0HjWOy

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2144	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.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\" %*"	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.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	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
File created	C:\Windows\SysWOW64\¢«.exe	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
File created	C:\Windows\system\rundll32.exe	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.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	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1713428722"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1713428722"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.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"	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2144	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
2144	rundll32.exe
2144	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2144	2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe	28
PID 2968 wrote to memory of 2144	2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe	28
PID 2968 wrote to memory of 2144	2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe	28
PID 2968 wrote to memory of 2144	2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe	28
PID 2968 wrote to memory of 2144	2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe	28
PID 2968 wrote to memory of 2144	2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe	28
PID 2968 wrote to memory of 2144	2968	a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe	28

C:\Users\Admin\AppData\Local\Temp\a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.exe
"C:\Users\Admin\AppData\Local\Temp\a2a5e61747acd70615e8538cd1e60a2c5a13e4d42a0e89fd030ac228b9dfa377.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:2968
- 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:2144

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

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
81KB

MD5
828a7fd5a08e1dee754b9f14e9ffc50b

SHA1
0aa70e28c1cfc6d8c95e6b1a021648dca7feaf57

SHA256
83490891c59dbcfd55c272f83f6f5ef640034ce474dfd7889ea813f361e4876e

SHA512
d34898c8ddd06a41ec881caacfca7540186b6ae7c2aa90784f34986115edab9057f1c9f7cd7f5be4333cfc484f2fa2bfc61586a10df3f66932a111179badf742

Download Submit
\Windows\system\rundll32.exe

Filesize
73KB

MD5
4e4fc4dfb0e9dc9911dc4ac369acc469

SHA1
74397854f54e4c4f57cdc342043a024878831fff

SHA256
37b9e00da71176f9a0e8e69e56b199c7c4179c22df0dadb7688e862a6ccf2005

SHA512
cffea3d95b52809821901dbc3d0a68fffa2f84c09c1badcf17aacc7c5a5436c46be44bae84b9dd4d6c11c8659dda46137c5e221b6c9444e7b510f9aef0123530

Download Submit
memory/2144-18-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2968-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2968-12-0x0000000000280000-0x0000000000296000-memory.dmp

Filesize
88KB

Download
memory/2968-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2968-21-0x0000000000280000-0x0000000000282000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads