20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d

General

Target

20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Size

76KB
MD5

f9450b0b6a4c6feedd994ada331d434d
SHA1

b69cc9ea43de9f337a59f7799434a7b17596935e
SHA256

20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d
SHA512

b370fd0a6ee4bc1d569dda7c37a2f779543c564a4104a42efb1365b8d6caaf0e5d622f9b6d8523db53178e5808474e5a5294e3c27c6aa1cf71d6a170baebd24f
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOrH:GhfxHNIreQm+HiMH

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
380	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
File created	C:\Windows\SysWOW64\¢«.exe	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
File created	C:\Windows\system\rundll32.exe	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe

Modifies registry class 15 IoCs

description	ioc	Process
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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717720174"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717720174"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
380	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
380	rundll32.exe
380	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 380	2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe	28
PID 2488 wrote to memory of 380	2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe	28
PID 2488 wrote to memory of 380	2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe	28
PID 2488 wrote to memory of 380	2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe	28
PID 2488 wrote to memory of 380	2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe	28
PID 2488 wrote to memory of 380	2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe	28
PID 2488 wrote to memory of 380	2488	20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe	28

C:\Users\Admin\AppData\Local\Temp\20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.exe
"C:\Users\Admin\AppData\Local\Temp\20af051a23b9e4d256d1efb36bc72c6a622e556cda5b6f535daccfbcf7d9878d.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:2488
- 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:380

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
74KB

MD5
df731ca30429ef592cc339e8f6248f95

SHA1
d6a09cea64711c1698c36b1afe765f1b1bd0e433

SHA256
56dd6cca6459cbaad9921c45ca29faf1a01142c6226e4151281ef4dd43204c7e

SHA512
70b85c6b1cfefbb022ac279461cac048c58475a06fafb1ae0843bbd89edc32a0740b886549a10ad02fca4d3ffdb1a277e047505935978c00e4af1f346b8122fd

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

Filesize
78KB

MD5
e38e1409bda504cdb807a1b9de0d1502

SHA1
dbe47448cc76642ebebf4a2602cf4200cc7e08f1

SHA256
227b0c9e18f747eb8ee88c74f0465888a7f1e8997578f9b3b754dc8e077d1e6a

SHA512
d0d97e4093d385ddce8ad715de41b5a8a33fccfa71ba69e473a60e62e74485a4a596504a4c1f05743eb1638e1c3bc56556f592354a9e683fcce3089c47861f04

Download Submit
memory/380-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2488-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2488-19-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/2488-18-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/2488-22-0x00000000002E0000-0x00000000002E2000-memory.dmp

Filesize
8KB

Download
memory/2488-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads