910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61

General

Target

910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
Size

79KB
MD5

2f7abb64af5666e5b9f118aee3796741
SHA1

328287d5baa14067c8c0d762bcbe672377ebd057
SHA256

910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61
SHA512

9635b738f9cad9c8b8dfd3a64b74b2f10e944f8c5c01809f5a55201bff96e87f5259d0bd934282eeb4f53ac3b98ef37474cded43bd1bf88d016b0c48d4045d26
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO2xfM2:GhfxHNIreQm+HiJxfM2

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2464	rundll32.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\" %*"	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.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	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
File created	C:\Windows\SysWOW64\¢«.exe	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
File opened for modification	C:\Windows\system\rundll32.exe	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718318196"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718318196"	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	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.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\" %*"	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2464	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
2464	rundll32.exe
2464	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3912 wrote to memory of 2464	3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe	85
PID 3912 wrote to memory of 2464	3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe	85
PID 3912 wrote to memory of 2464	3912	910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe	85

C:\Users\Admin\AppData\Local\Temp\910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.exe
"C:\Users\Admin\AppData\Local\Temp\910b3e48d5d280c33cce0d92695fc0f09da268bf79d617e86e38183c9dd98f61.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:3912
- 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:2464

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
84KB

MD5
832b4e77e1fa4edf31f7ec8691d0766d

SHA1
c37824af0e02155918f053449e03aafdacb298dd

SHA256
9235ccdc745d3e3e08538d232f5fa8225ce0ca60ca1cb5c76d36fe944ac9b120

SHA512
188af007ed946b9e71759a1bf1acd33284dfac0234079937ee8aa8d090adf41611f334017a79f696bf069f1b1961f4a82fc3cf54453b7fd254eede26f058a778

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

Filesize
83KB

MD5
50355630ce2d9f324586039a24bd04f2

SHA1
5c6c3bb73e68efa8604db698d70e6190aa93b71f

SHA256
55a602fbf14067aacafd76060d96bb6e60444b3c9aedbcad6ecab8d104f19665

SHA512
eff86195fa3fd98f77200e8c522802cfcce79c53f5e1a7ebcd9e0df8fdc4c9644a64b381fcfb43c9a97b71e79a3c89b93a2bdea753c86be2869dbbfd73aa3a5b

Download Submit
memory/3912-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3912-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads