98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd

General

Target

98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Size

83KB
MD5

83b97158ca7473747b81726f293ced6d
SHA1

03cd15739637055725684b45167a27acf573cd13
SHA256

98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd
SHA512

bd7c4d1a5ad392a1d10e59be9c286536a2260385a2a896d366f65afe023c480936e138ef7622ced333230cad1285e073cbc744950073fe73b28ba439b089e571
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO6RzWTRG6p:GhfxHNIreQm+HiFRzWTRG6p

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3936	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\" %*"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.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	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
File created	C:\Windows\SysWOW64\¢«.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
File opened for modification	C:\Windows\system\rundll32.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1720444359"	rundll32.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\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1720444359"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3936	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
3936	rundll32.exe
3936	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2284 wrote to memory of 3936	2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	85
PID 2284 wrote to memory of 3936	2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	85
PID 2284 wrote to memory of 3936	2284	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	85

C:\Users\Admin\AppData\Local\Temp\98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
"C:\Users\Admin\AppData\Local\Temp\98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.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:2284
- 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:3936

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
74KB

MD5
0f3b055afc5e0fc19a9ad6a41cecdd5a

SHA1
9889f0f9cef780d422296bb034f01c8a8331b8aa

SHA256
b2da7f54e275ab349ba77d1473029c972995c098f923b0759b77fd2d0cb56d48

SHA512
f3adebff459c0a3d2cb6e5d00813da73bdb56dc3e84b4e588b38f57bb79005bc0aff6d2ac94238b7fecf4d558404ec33b902d5f968ecdbb77ec187234c6895a6

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

Filesize
75KB

MD5
188e7ad3539ff0596fe4fa3294da7790

SHA1
3d6b53dffc61692d2f80031e0f5128bc2c94d04a

SHA256
c1519b08ac2bf6e43ec4f5ea929523c2946de0531534ffd5359e684882e7513f

SHA512
b7cb8dc67e2bdaa949bb863d9bb5d1735548a8fc5509a43780eb66a85834983d3ca3e3df186525bc314571a5df36dea86fbcddaed1461fe6bbea784a3b81d676

Download Submit
memory/2284-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2284-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads