784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596

General

Target

784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
Size

78KB
MD5

77fd45640750cc3dd3f984c9bab09a35
SHA1

688003a0ce5b1145f996d0b6ace2d3b9189298e3
SHA256

784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596
SHA512

aed5f5bf7b341665aac83d4133647dc89d185b98e7af8343e0679b26cc2578022a63709bb5c9b7f796f50ede177d07c8a7fb586026161c9baeb13049b08a23b4
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOV+t+d:GhfxHNIreQm+Hic+t+d

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3928	rundll32.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	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	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\¢«.exe	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
File created	C:\Windows\system\rundll32.exe	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717104571"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717104571"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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\" %*"	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3928	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
3928	rundll32.exe
3928	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 3928	4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe	86
PID 4180 wrote to memory of 3928	4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe	86
PID 4180 wrote to memory of 3928	4180	784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe	86

C:\Users\Admin\AppData\Local\Temp\784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.exe
"C:\Users\Admin\AppData\Local\Temp\784211a6b47e3f5f45d71f2d1ffa35b8f2aa81ab6795440f9480ede62d2e8596.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:4180
- 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:3928

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
74KB

MD5
5bcc09890e95895581489d6a19256171

SHA1
6764053523e5d8e0f80ad8ccbf675195e28c8b38

SHA256
3ea2393820536b3899920ff342b72de8851eb9705eea22cb0d7c6aea3343f155

SHA512
2f56df6822a031d9e2b7056287b3f7d4fdf89fa693d12ed4aa9562003c2d212dbc940cddbcd7caf6be01b5f73b2895eeeb434156e6f6a03d0ff94d8595a152cf

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

Filesize
80KB

MD5
44c9d106f69b9b4f414b082e44d01377

SHA1
ef76d12855b12db9c9dd8aa074caf6f9f21146d1

SHA256
82a567b467ca4962eaac3815b0b91d27e0750f81fc6688a5ee3826843eb9169b

SHA512
a940127187b5106752543802a0b214ad355806108360c4659e5b9c23fffa62b526dc6db0a6b2c4df2a453b72977bd78e2469c0ffe5bb1b2b61116e6b6910d521

Download Submit
memory/4180-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4180-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads