24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1

General

Target

24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
Size

77KB
MD5

ccc81c4d7c88aa9934c8771bdaf72163
SHA1

18e712bf1a29744dc552270a48d49c35542eda3a
SHA256

24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1
SHA512

60367d9161277248d80b23c311c229a8665ff7631a6445be3726df77898236bd9a2e46dd990754ca5bbf12b6535ee83c8e4d0da2578ca92e5df41e3406c9bed1
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOckut:GhfxHNIreQm+HiPkut

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2028	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.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	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.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 created	C:\Windows\SysWOW64\¢«.exe	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
File created	C:\Windows\system\rundll32.exe	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe

Modifies registry class 15 IoCs

description	ioc	Process
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
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717403373"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717403373"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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.exe %1"	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2028	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
2028	rundll32.exe
2028	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2028	2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe	28
PID 2220 wrote to memory of 2028	2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe	28
PID 2220 wrote to memory of 2028	2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe	28
PID 2220 wrote to memory of 2028	2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe	28
PID 2220 wrote to memory of 2028	2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe	28
PID 2220 wrote to memory of 2028	2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe	28
PID 2220 wrote to memory of 2028	2220	24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe	28

C:\Users\Admin\AppData\Local\Temp\24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.exe
"C:\Users\Admin\AppData\Local\Temp\24fabf6941823abecdd4cb4ebd8cf50dd0c0f800b0c55cd410c0dd3ce1545ff1.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:2220
- 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:2028

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
74KB

MD5
8c260a1041e673ad62bc06c470314ac7

SHA1
9a156968807ecdfc374b329e2f79b69434a96a99

SHA256
db6e8fe5e0a5b291740e515811f695ce95834acbbd9e0ed3173a3c44e529d3df

SHA512
97379a29985094f3d1cf850ff85e8fc4eab827512569d9b2f3b5536a987ac78d1c14584ca245adc318d5e2a828c5df8cd4632d31fcf01d58fc02ec719067d54f

Download Submit
\Windows\system\rundll32.exe

Filesize
73KB

MD5
e0f89ec66a7485e2e86e8cdef24da332

SHA1
2041d2f13cb6bb63f95edda28a30a584346790ee

SHA256
f27e5ade7d4e9bbfe0171dbc2d9d46d66f6a095cde440143e1daf5a6e8f3c73d

SHA512
a75df6d6512c4e4a6521402c0f273836deacd31dbfe3dfca2a6665f05d9c077e713b2179ce26a8993774f4ada72d80388745704f55dd30e8d2395493d710a841

Download Submit
memory/2028-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2220-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2220-18-0x0000000000360000-0x0000000000376000-memory.dmp

Filesize
88KB

Download
memory/2220-17-0x0000000000360000-0x0000000000376000-memory.dmp

Filesize
88KB

Download
memory/2220-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2220-22-0x0000000000360000-0x0000000000362000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads