f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e

General

Target

f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
Size

81KB
MD5

7697f601c98cae9d78f370e0a61d8cbd
SHA1

95250da5d8da82cf64aa74a8a7fa1a618c6cb4e9
SHA256

f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e
SHA512

75bbee6c5989dd61f737e7a5dd6b5a7d77b8c9154bb0877c317d9e0f20ff079621fd226b10461d0f9dc6021da75aeb3b647372466caf16fbade5aa85128de191
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOAxID:GhfxHNIreQm+HidxID

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3756	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	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.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\¢«.exe	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
File created	C:\Windows\SysWOW64\¢«.exe	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
File created	C:\Windows\system\rundll32.exe	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717891775"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717891775"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.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\" %*"	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.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

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3756	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
3756	rundll32.exe
3756	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1424 wrote to memory of 3756	1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe	84
PID 1424 wrote to memory of 3756	1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe	84
PID 1424 wrote to memory of 3756	1424	f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe	84

C:\Users\Admin\AppData\Local\Temp\f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.exe
"C:\Users\Admin\AppData\Local\Temp\f322733b9a8b25101fff916fd837e757fc496d89a85b6cdbfc98e63a1380c21e.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:1424
- 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:3756

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
80KB

MD5
07f250eacdd36272fd99ea462a6ec3ad

SHA1
6f96fa86481b9a13eeeb862a119253f18725aca5

SHA256
51342f47bf9816617d8ee2cd1797794bede6cbe6bae3b74dd7d5ba0a35c33438

SHA512
3052c0fad4946b5007665382d16376fbb710c23d6d1f66c8e8ff5f44c35b5c9031f687e35f640df8ab9289ff514861b7114ab85908de42c7246bf8c97f474cad

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

Filesize
74KB

MD5
52e5374516a1a49ca204a7c8bada6865

SHA1
43f85c63b69a455b7d053d8d7c60b543e3c5f99c

SHA256
7657c75d6db698126be576493de0424f300b4393a046bf2531c46b77720c9d7a

SHA512
01964027bcf3c030e0537d579638827b1003489a13d4d7262e5bdbf6e2755ff1cce1fd620342047144deda2b84ca8ab2416f32d83914aea3a19d334d66514d83

Download Submit
memory/1424-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1424-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads