9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0

General

Target

9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Size

163KB
MD5

1d6b80eed083b9eee8ce95adc7f8e436
SHA1

f94fe50ad12fee43655eab81f830a1a9f67fa798
SHA256

9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0
SHA512

814bfa1038d59bc15ba48a4c4e701f5e1358f55a20feb733b306d378ae80de0e65e173b1af6105559f5e33fa33165d9fb55e63a50ff5bb22b2f3e4a1a18aedb5
SSDEEP

3072:fhfxHNIBdQmNitcrE4mzfOv9lH5ANJaYN2:f1piBdfitcrCDOzHWt2

Score

10^/10

persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

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	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
4248	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
File created	C:\Windows\SysWOW64\¢«.exe	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
File created	C:\Windows\system\rundll32.exe	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe

Modifies registry class 15 IoCs

description	ioc	Process
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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1670487144"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1670487144"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
4248	rundll32.exe
4248	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3924 wrote to memory of 4248	3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	81
PID 3924 wrote to memory of 4248	3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	81
PID 3924 wrote to memory of 4248	3924	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	81

C:\Users\Admin\AppData\Local\Temp\9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
"C:\Users\Admin\AppData\Local\Temp\9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.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:3924
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Modifies system executable filetype association
  - Executes dropped EXE
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:4248

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\System\rundll32.exe

Filesize
177KB

MD5
e8104b539f8df6afb0c57d6bac9540b3

SHA1
7f2df887b6dee252ed1223cd2eb156609e3de408

SHA256
6ffc304127a62af5e80e392eda9428ff23d1da8be09936712a0a5c1e8af1b93c

SHA512
1c70c46afae073992e443f584f10c403a5c39ef64e36d079195e7fe5d994782d87468ef9073e3933468493b02d85f67619100144b6bc0ec642de89db8ffc7cfe

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

Filesize
177KB

MD5
e8104b539f8df6afb0c57d6bac9540b3

SHA1
7f2df887b6dee252ed1223cd2eb156609e3de408

SHA256
6ffc304127a62af5e80e392eda9428ff23d1da8be09936712a0a5c1e8af1b93c

SHA512
1c70c46afae073992e443f584f10c403a5c39ef64e36d079195e7fe5d994782d87468ef9073e3933468493b02d85f67619100144b6bc0ec642de89db8ffc7cfe

Download Submit

Analysis

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