501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee

General

Target

501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
Size

84KB
MD5

bb34e19bcb5a9cabc242df84aae4a4b6
SHA1

e509b00f7de4e5f5e562e4f6fefeb80229271805
SHA256

501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee
SHA512

dd025ed58572a630727e2392b6a3e3fa6989a2098dc519fcbbb420c14b095fe00680afecec0ec5773982992282bf296a6a05bb8cd7fef11c6708e24c10d59b75
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOriOp48Zs:GhfxHNIreQm+HiAiOp48Zs

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
336	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\" %*"	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.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	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
File created	C:\Windows\SysWOW64\¢«.exe	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
File created	C:\Windows\system\rundll32.exe	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716871954"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716871954"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
336	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
336	rundll32.exe
336	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 336	3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe	86
PID 3928 wrote to memory of 336	3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe	86
PID 3928 wrote to memory of 336	3928	501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe	86

C:\Users\Admin\AppData\Local\Temp\501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.exe
"C:\Users\Admin\AppData\Local\Temp\501e2e935a748a6ca8b93a7430538871339ad867e9064523607818c2b7405bee.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:3928
- 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:336

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
637c053ddfc769eab631020805d5e820

SHA1
45fdd055d6a7032a14fd5b9874b57a23b942619f

SHA256
2f3cbb89497e365c91d2378599d45b8f81d9b441dde5504b2a77da7861c7ab0f

SHA512
58bc3ea871c20315cd8a82d68cd78255664f06de005457829964b66fbd4d4dc437dcae01c5270c52cf77c14ee2c547af56b6696c29313bd8f28daff3cfacd7ad

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

Filesize
75KB

MD5
4886ce3beee33a11610df912c6da10fe

SHA1
3e60eb7897e3298cd4b7ef4b4aae0223953c2d77

SHA256
433abe2ec5670451561d7f103a03b09c0f109f8cecafdabad2f55d4e6948eab7

SHA512
963a6d105d1f7b67b0e4fac73b1a9ceea03c808e3e8fa13d71247413441c9fd6ee97779917ec26c221635b5db67cc0f50c263c0a68af4018fd3e160f12449233

Download Submit
memory/336-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3928-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3928-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads