a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856

General

Target

a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
Size

75KB
MD5

f7ee323c8a18c0ae0162bc55aa6d4795
SHA1

32fe77851dbffb88aeec2de61549764a513cfbeb
SHA256

a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856
SHA512

9197be3716e75369ee61b437438092c8f6ce5abf7f6a093be22d6c6675dffb06a6abb5bce8bf6e1b85029b964a96a1840df9403ee543409bdf6da214a6e3223e
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOzF:RshfSWHHNvoLqNwDDGw02eQmh0HjWOzF

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1656	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.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\" %*"	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.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	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
File created	C:\Windows\SysWOW64\¢«.exe	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
File created	C:\Windows\system\rundll32.exe	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe

Modifies registry class 15 IoCs

description	ioc	Process
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"	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697122850"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697122850"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1656	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
1656	rundll32.exe
1656	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 308 wrote to memory of 1656	308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe	27
PID 308 wrote to memory of 1656	308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe	27
PID 308 wrote to memory of 1656	308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe	27
PID 308 wrote to memory of 1656	308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe	27
PID 308 wrote to memory of 1656	308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe	27
PID 308 wrote to memory of 1656	308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe	27
PID 308 wrote to memory of 1656	308	a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe	27

C:\Users\Admin\AppData\Local\Temp\a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.exe
"C:\Users\Admin\AppData\Local\Temp\a7606b90150c139edc58a48cc71caba5380120a9720f32c521d16e1db0b63856.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:308
- 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:1656

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
8e0deb30a8e70075af394c86f964b36f

SHA1
b69f8af3a4e3045471b01ccd488e5cbfa1a6ed46

SHA256
a879c7c4b5e66bb78a294a562c31f340f4da5ebd59f3765c641275b55af44e21

SHA512
1d02ffe4c392384b8a2434bf9c55e3ed5ce03d75524ced0b9d40de10b6dfd4bcc767670b0c361a136bd6f8bfac644e93dcef4c9c832690787ba1bf12cff93e04

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

Filesize
76KB

MD5
a8f082215c03907502599dca5ae32866

SHA1
40767cea9199a304e754ca8a501f06aa74e4aca5

SHA256
6a895b47a578d7f1f078a67652a75d93e44d887b33652ef3fbd8201b1cf427c6

SHA512
b670ff1514307d2cee3048b8d7498df2460b85b11e6cb7eb347351966b9847ad9f5765cfb060cd075ec9dfec2df508086de30d0d77a5c9c64f341253b7126303

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

Filesize
76KB

MD5
a8f082215c03907502599dca5ae32866

SHA1
40767cea9199a304e754ca8a501f06aa74e4aca5

SHA256
6a895b47a578d7f1f078a67652a75d93e44d887b33652ef3fbd8201b1cf427c6

SHA512
b670ff1514307d2cee3048b8d7498df2460b85b11e6cb7eb347351966b9847ad9f5765cfb060cd075ec9dfec2df508086de30d0d77a5c9c64f341253b7126303

Download Submit
\Windows\system\rundll32.exe

Filesize
76KB

MD5
a8f082215c03907502599dca5ae32866

SHA1
40767cea9199a304e754ca8a501f06aa74e4aca5

SHA256
6a895b47a578d7f1f078a67652a75d93e44d887b33652ef3fbd8201b1cf427c6

SHA512
b670ff1514307d2cee3048b8d7498df2460b85b11e6cb7eb347351966b9847ad9f5765cfb060cd075ec9dfec2df508086de30d0d77a5c9c64f341253b7126303

Download Submit
\Windows\system\rundll32.exe

Filesize
76KB

MD5
a8f082215c03907502599dca5ae32866

SHA1
40767cea9199a304e754ca8a501f06aa74e4aca5

SHA256
6a895b47a578d7f1f078a67652a75d93e44d887b33652ef3fbd8201b1cf427c6

SHA512
b670ff1514307d2cee3048b8d7498df2460b85b11e6cb7eb347351966b9847ad9f5765cfb060cd075ec9dfec2df508086de30d0d77a5c9c64f341253b7126303

Download Submit
memory/308-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/308-11-0x0000000000360000-0x0000000000376000-memory.dmp

Filesize
88KB

Download
memory/308-17-0x0000000000360000-0x0000000000376000-memory.dmp

Filesize
88KB

Download
memory/308-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/308-21-0x0000000000360000-0x0000000000362000-memory.dmp

Filesize
8KB

Download
memory/1656-22-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads