b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d

General

Target

b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Size

78KB
MD5

24267e3370b9312986d2c799ae228306
SHA1

5740fd004c73cb12cb74bf9fa4fcc48f980078f3
SHA256

b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d
SHA512

b2644182a502a07ba53b77f1eb81cf5cd2190c211039204c5dc8ce74d2a11f61de403069a6d3b4ec9f37971f35d50865fe2f6c6d587f6651ca16104b867563e4
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOmhAN:GhfxHNIreQm+HiphAN

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2588	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.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	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.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	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
File created	C:\Windows\SysWOW64\¢«.exe	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
File created	C:\Windows\system\rundll32.exe	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1713687278"	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\exefile\shell\open\command	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1713687278"	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¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2588	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
2588	rundll32.exe
2588	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2588	2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe	28
PID 2244 wrote to memory of 2588	2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe	28
PID 2244 wrote to memory of 2588	2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe	28
PID 2244 wrote to memory of 2588	2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe	28
PID 2244 wrote to memory of 2588	2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe	28
PID 2244 wrote to memory of 2588	2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe	28
PID 2244 wrote to memory of 2588	2244	b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe	28

C:\Users\Admin\AppData\Local\Temp\b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.exe
"C:\Users\Admin\AppData\Local\Temp\b0d576fc286758b9ab902d309ce1ba74df072d923a434cfd0be9595da5fcdd0d.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:2244
- 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:2588

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
80KB

MD5
ab3a0497c8466e693eb09a5db482f90c

SHA1
8c9c5ec00bd3d318210e5e058a8d2c5322ec9fb7

SHA256
fbc91bf1c617c5c978adfc4ca03b3ebe1b3665df01ea568364742a7ec484e372

SHA512
5f345ebfcf6852a982d96b808839c60119dd810846c48f6bd3a295a5aecd8b99301a989131b4481d59aab6fd39785c550db7e300e706193e2a2888673c3b1ed3

Download Submit
\Windows\system\rundll32.exe

Filesize
76KB

MD5
1f00e37dc98d73c4466f6c80ee8bcb3e

SHA1
16796c02f885f508566fe80b40811aeb96bd1cb3

SHA256
11093a1f215b1752d9977a4c2c975b4a07e7b5444b81a8e61ee5e2704a0dbb3f

SHA512
c241c6d053fd32556ab8eb542c390571d60f249e5c2d70a511d740df9583572504be95bfd46f1ab725842ead6f468fab92cbe94bf4de648febeb44aa0d3e969f

Download Submit
memory/2244-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2244-12-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2244-17-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2244-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2244-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2588-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads