6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d

General

Target

6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Size

79KB
MD5

810596e0b1acee4c520e0f1567903646
SHA1

d718a25fd006322d7bacd924c049639d38ce4623
SHA256

6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d
SHA512

be30b5d396c3500f67f7bb7e81541ab04963415bc1672028c3ad0fd89b717b765a2178f9445c1009c6dda2d3dd471926eb869229f00030e6c495c68e31c7bc53
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOt+GNk:GhfxHNIreQm+Hi6+GNk

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3844	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	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.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\notepad¢¬.exe	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
File created	C:\Windows\SysWOW64\¢«.exe	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
File created	C:\Windows\system\rundll32.exe	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697168318"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	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\MSipv	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697168318"	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
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
3844	rundll32.exe
3844	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4628 wrote to memory of 3844	4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe	86
PID 4628 wrote to memory of 3844	4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe	86
PID 4628 wrote to memory of 3844	4628	6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe	86

C:\Users\Admin\AppData\Local\Temp\6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.exe
"C:\Users\Admin\AppData\Local\Temp\6d1aaf6a853d39b2decbb63012fbb2fc7a125fe6307de3022d50b2b0d8b8062d.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:4628
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:3844

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
bfeb23fd50059f5a6a8e1a7b99633f5f

SHA1
51ae2ff8f69b5011e813b7c0d520c92bfb5c8aeb

SHA256
86a0d0131fa3850974176716e485961d0b28e3da6ea9308f672a86954ec0d84c

SHA512
115f82b499461858e009466856bf00961549d8932ec80cf81279b3bae7fec6b6a75a750b3d1e533e815132adb62307bdf9f81f61de50260927b5d2a6f0d3f0c5

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

Filesize
77KB

MD5
cb2bab1e23eed6b2af1af1b17e2cb0c1

SHA1
380f8f746e7d80088c44dda032f5c0579181cb1e

SHA256
2f7428dfd22d7ddf1623a99b0459cb5748ddbe7fa4e0d4aee1405a3021c57247

SHA512
cd96f7c9a03ae06db48ddb926ef968864dc8edc9365b4f397618de2da1689096a25f90cdd4e47b94737f5c638d4504d8289e14db16a6168e1f889a589deca2e2

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

Filesize
77KB

MD5
cb2bab1e23eed6b2af1af1b17e2cb0c1

SHA1
380f8f746e7d80088c44dda032f5c0579181cb1e

SHA256
2f7428dfd22d7ddf1623a99b0459cb5748ddbe7fa4e0d4aee1405a3021c57247

SHA512
cd96f7c9a03ae06db48ddb926ef968864dc8edc9365b4f397618de2da1689096a25f90cdd4e47b94737f5c638d4504d8289e14db16a6168e1f889a589deca2e2

Download Submit
memory/3844-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4628-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4628-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads