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

Executes dropped EXE 1 IoCs

pid	Process
1392	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1670486988"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1670486988"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.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
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
1392	rundll32.exe
1392	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 1392	848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	28
PID 848 wrote to memory of 1392	848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	28
PID 848 wrote to memory of 1392	848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	28
PID 848 wrote to memory of 1392	848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	28
PID 848 wrote to memory of 1392	848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	28
PID 848 wrote to memory of 1392	848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	28
PID 848 wrote to memory of 1392	848	9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe	28

C:\Users\Admin\AppData\Local\Temp\9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe
"C:\Users\Admin\AppData\Local\Temp\9e12519039f24624a52fbd2ce5f8dcf0be55a0321f5cf1d5b2e751bffbb389b0.exe"
1⤵
- Modifies system executable filetype association
- Loads dropped DLL
- 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:848
- 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:1392

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
173KB

MD5
272349b3d393fadc37e8f40b218fe560

SHA1
914710f1452b290c7db0a7f5b129668c4665fd54

SHA256
e58e822f4267ba9a799f40a6427f8b9bd0007d15e4d8acce42e9ed10df23d727

SHA512
785d8784a5612c0d61b9097a33855879b172dc676f0246f22ff2ef0cc90bcb6d5d20258698999f385adc0295d2da59323790fe18b5a4a8adce7be9ce3c158ff1

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

Filesize
173KB

MD5
272349b3d393fadc37e8f40b218fe560

SHA1
914710f1452b290c7db0a7f5b129668c4665fd54

SHA256
e58e822f4267ba9a799f40a6427f8b9bd0007d15e4d8acce42e9ed10df23d727

SHA512
785d8784a5612c0d61b9097a33855879b172dc676f0246f22ff2ef0cc90bcb6d5d20258698999f385adc0295d2da59323790fe18b5a4a8adce7be9ce3c158ff1

Download Submit
\Windows\system\rundll32.exe

Filesize
173KB

MD5
272349b3d393fadc37e8f40b218fe560

SHA1
914710f1452b290c7db0a7f5b129668c4665fd54

SHA256
e58e822f4267ba9a799f40a6427f8b9bd0007d15e4d8acce42e9ed10df23d727

SHA512
785d8784a5612c0d61b9097a33855879b172dc676f0246f22ff2ef0cc90bcb6d5d20258698999f385adc0295d2da59323790fe18b5a4a8adce7be9ce3c158ff1

Download Submit
\Windows\system\rundll32.exe

Filesize
173KB

MD5
272349b3d393fadc37e8f40b218fe560

SHA1
914710f1452b290c7db0a7f5b129668c4665fd54

SHA256
e58e822f4267ba9a799f40a6427f8b9bd0007d15e4d8acce42e9ed10df23d727

SHA512
785d8784a5612c0d61b9097a33855879b172dc676f0246f22ff2ef0cc90bcb6d5d20258698999f385adc0295d2da59323790fe18b5a4a8adce7be9ce3c158ff1

Download Submit
memory/848-54-0x00000000766F1000-0x00000000766F3000-memory.dmp

Filesize
8KB

Download

Analysis

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