4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4

General

Target

4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
Size

79KB
MD5

ceaf05386aec16b5aa9d189cae75e598
SHA1

fca454df5fb28024bccec71dc6d36163fbdb4ab7
SHA256

4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4
SHA512

55ed0de92d8fffceea35d43fae2b0edf99ac3ce20540bcd6fdf953e8053fe618b1aba0f15dcb38d9297ca62c7fc71882caba5a340dcb800b405a50395aafc996
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOV7F:GhfxHNIreQm+Him7F

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2884	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.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	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.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\¢«.exe	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
File created	C:\Windows\SysWOW64\¢«.exe	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
File created	C:\Windows\system\rundll32.exe	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1709906442"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.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\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1709906442"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2884	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
2884	rundll32.exe
2884	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 2884	2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe	28
PID 2612 wrote to memory of 2884	2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe	28
PID 2612 wrote to memory of 2884	2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe	28
PID 2612 wrote to memory of 2884	2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe	28
PID 2612 wrote to memory of 2884	2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe	28
PID 2612 wrote to memory of 2884	2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe	28
PID 2612 wrote to memory of 2884	2612	4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe	28

C:\Users\Admin\AppData\Local\Temp\4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.exe
"C:\Users\Admin\AppData\Local\Temp\4909c9f7db0a89105b0774515aa9c444c302e8f882cc77c86c2acde5ce1e64a4.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:2612
- 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:2884

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
80KB

MD5
a17e672fdd41d3ea561700b6f7264f8a

SHA1
81e5f6d9bde291cad884850fa9101288a85387c3

SHA256
f483859b6fcfdc1b776137db669ae52ebfaedf43b576289d3a2577a71d2b2791

SHA512
5ef36a8ea72542a0cb361f94a50463178114597303ed04909527382d1fbfcdedd0702ab5c7e3eadf6355514b44f50a92f54e388b7c1b79cf185e9d0314ce5355

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
6d58a26e5a2faf40606d702f50e75712

SHA1
8ab79e5655134a19fb38f769021d748293c9d8d2

SHA256
2863853f7128ec6f001cc0af4f7b8bf7ef47c6ee86b3f3f934db09c410c799c8

SHA512
0be7e9ba77cfa8e57683a57ab76c03f9db37aadcbf93505a584f3a42c4c187faa8a8890c48fa9c679baeb260ef4744306195c653a44b02e973654ec471b23e15

Download Submit
memory/2612-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2612-12-0x00000000002C0000-0x00000000002D6000-memory.dmp

Filesize
88KB

Download
memory/2612-17-0x00000000002C0000-0x00000000002D6000-memory.dmp

Filesize
88KB

Download
memory/2612-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2612-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2884-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads