8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e

General

Target

8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Size

76KB
MD5

62760c8c5089a61d13878644b94f86c3
SHA1

a7d7095785fbd91fb407006202bec91dd0c25a28
SHA256

8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e
SHA512

966ef2ffcd37982c71553469ebfb1195ddf0e097e8b022428cfb33e35e59ca0e9f2480496f4908fbede5e470850e13071559b4344a22b31994af8cbaf9c142d7
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOora:GhfxHNIreQm+Hibra

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1212	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	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.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\notepad¢¬.exe	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
File created	C:\Windows\SysWOW64\¢«.exe	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
File created	C:\Windows\system\rundll32.exe	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717255776"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717255776"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1212	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
1212	rundll32.exe
1212	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 624 wrote to memory of 1212	624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe	85
PID 624 wrote to memory of 1212	624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe	85
PID 624 wrote to memory of 1212	624	8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe	85

C:\Users\Admin\AppData\Local\Temp\8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.exe
"C:\Users\Admin\AppData\Local\Temp\8f4e156810835ef8eaac8995f259320b3e605164cb4fb8cb4cbf4ad37cc2fb3e.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:624
- 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:1212

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
75KB

MD5
ebd0d2907cc6b701dcbfe8eedaa630b4

SHA1
5228330306687a55542d6883a9b0177aa4340cca

SHA256
4d51b4374860fe1463c995f52cabd217f920635cb5915d6a2b78c58c629bf04e

SHA512
241d2607892ebc17d84037273d8042621098a564c5372d094a3e64971de5668fd0e1dc9b0d39034ea8bef4703693b433e7b1250e7f3f7a0db4fa3e22484befb3

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

Filesize
76KB

MD5
613e1a48f69bcff501c83dc80b57f969

SHA1
fd673fbed8c51eb27e80e4dd1eb24f04fd872f2e

SHA256
d6ee356d55dd12030635719e202fb818ebf85ddf7d7597947311e770f0b24b20

SHA512
354b9e3d8bb401ac9672fbaa687b72cf1cae69c8b801c9f4d34a281f07b55ff0eac2bb4d5d54ee2f69db64097dcabd46f0e15b776f56f5f447adc008d4d5ad8d

Download Submit
memory/624-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/624-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads