3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328

General

Target

3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
Size

83KB
MD5

257b8fff8e3a223b375842371cddf31d
SHA1

3a5c2d9e29b2c472a3f399930f9be46c6702f49f
SHA256

3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328
SHA512

0fc793389398f13e159bc1b7aa194bae4d8c8e2d19b6182d6ab37885d47752418f78fc9f01b75d2af4f55fee6ebd22b7b58ad331d21d021738ddf3bb66c0f354
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOGb:RshfSWHHNvoLqNwDDGw02eQmh0HjWOGb

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2212	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.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	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.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	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
File created	C:\Windows\system\rundll32.exe	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716868547"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.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¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716868547"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2212	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
2212	rundll32.exe
2212	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2212	2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe	28
PID 2380 wrote to memory of 2212	2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe	28
PID 2380 wrote to memory of 2212	2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe	28
PID 2380 wrote to memory of 2212	2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe	28
PID 2380 wrote to memory of 2212	2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe	28
PID 2380 wrote to memory of 2212	2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe	28
PID 2380 wrote to memory of 2212	2380	3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe	28

C:\Users\Admin\AppData\Local\Temp\3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.exe
"C:\Users\Admin\AppData\Local\Temp\3f6982905e1e50402dbb1a7542b50e01bf83bceb394739b67d72b1869bc54328.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:2380
- 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:2212

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

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
78KB

MD5
3c90056ec77d02b598e5228dc5bb1d1d

SHA1
e50836838c3b0b0a50c45ff5fb25a175f0791fee

SHA256
c7651f985b562eccb1d0bb66f724ec01164c2edb93d7e68a897b8cb32c6f9a69

SHA512
d8fc860e3ad29d18768d4e88c3a4e9fb82b98bb70a1cb873ef2a898943f5dd72f43abddab611e9c3f3ab57f971b016ef6a42413e9a018eb69d930aa5342bdefd

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
b79ae9cf0781e2c42871d41d7fddcf56

SHA1
4eaed4d691861b23fafedf1474061ca500c72a6c

SHA256
8b3d35114277b178ed4f4e2edfad8f056515dce8ab9141c7def29d3e3490616a

SHA512
08ce991a2d1fdf423695b80484f3819f97bd3fdd491ae760449e936a7ce7c099d032280a735dbd91072b79bfa25b93969f689c37b49530b53a43d3da61361123

Download Submit
memory/2212-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2380-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2380-18-0x0000000000330000-0x0000000000346000-memory.dmp

Filesize
88KB

Download
memory/2380-17-0x0000000000330000-0x0000000000346000-memory.dmp

Filesize
88KB

Download
memory/2380-22-0x0000000000330000-0x0000000000332000-memory.dmp

Filesize
8KB

Download
memory/2380-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads