df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6

General

Target

df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Size

79KB
MD5

9504486ecd1e88834343d27ce890d0e2
SHA1

d2cdc0f269e1b6a861eeb765fb966bf873d5271d
SHA256

df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6
SHA512

25087979c91ca57bd6ca47252ef5efe91ee20fc76388b9c3835b769938bbfbe01d04ecec4abbaf89f219212c0dd5f61fd9788fd4dc8c5d7ab14e737bba72b452
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOyOh:GhfxHNIreQm+HiXOh

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2760	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.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	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
File created	C:\Windows\SysWOW64\¢«.exe	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
File created	C:\Windows\system\rundll32.exe	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717367600"	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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717367600"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2760	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
2760	rundll32.exe
2760	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 2760	2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe	28
PID 2976 wrote to memory of 2760	2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe	28
PID 2976 wrote to memory of 2760	2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe	28
PID 2976 wrote to memory of 2760	2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe	28
PID 2976 wrote to memory of 2760	2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe	28
PID 2976 wrote to memory of 2760	2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe	28
PID 2976 wrote to memory of 2760	2976	df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe	28

C:\Users\Admin\AppData\Local\Temp\df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.exe
"C:\Users\Admin\AppData\Local\Temp\df0fbb1fcb1014a8e512ea272d9fd627f6c9a7f6cc022743a100419fb67603d6.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:2976
- 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:2760

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
83KB

MD5
ad33fca648e45a961afc139df2865c19

SHA1
65b5fd7b3b0239a3f24a1d28deabaa462aaf98c9

SHA256
8a8756574bd36b14f3d4dbbf41e1fda00b183aca68237cb04aea2b385d547553

SHA512
8064439e7a0fc61cc3885c5995bee3e13edf68d17032137adbb1c766199bf3bdf051b8c9cd59dc7ea509b1782630fb41606652e20545062ce1f5ca89b90b28f7

Download Submit
\Windows\system\rundll32.exe

Filesize
77KB

MD5
a013706483f8badb922efda2300aed09

SHA1
585b159776d466764710751ef830d1f601e4f362

SHA256
0a6bf677c5dcf3acdb964057501f4efa040220523be2b7c1650a176e4db53509

SHA512
475b14c680facacc02070b3c9c46ac7a0dad43c89062cfcd129028604374de6f91cdc15cfe461d1e92186fefbae1ef1eaca64316a55b4ef6c7b2d804f3235297

Download Submit
memory/2976-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2976-18-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2976-17-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2976-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2976-21-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads