804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c

General

Target

804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
Size

78KB
MD5

52dcbf1c20b544bc821844ed3fa625cc
SHA1

4ef9b7bb963a3f994f2883b5bc6e3564e51e6903
SHA256

804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c
SHA512

e0b8c289f0c12ca2291a695dde5a7b9953063a6f0469c94ca92e77312ab867e7edc23c33aaabbecd323cc97ac56e696f245c222934c1f543f8d771eec67d13d5
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO/Yr:GhfxHNIreQm+HiCYr

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2232	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.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	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.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	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
File created	C:\Windows\system\rundll32.exe	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.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\" %*"	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717187801"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717187801"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2232	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
2232	rundll32.exe
2232	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 2232	1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe	28
PID 1152 wrote to memory of 2232	1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe	28
PID 1152 wrote to memory of 2232	1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe	28
PID 1152 wrote to memory of 2232	1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe	28
PID 1152 wrote to memory of 2232	1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe	28
PID 1152 wrote to memory of 2232	1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe	28
PID 1152 wrote to memory of 2232	1152	804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe	28

C:\Users\Admin\AppData\Local\Temp\804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.exe
"C:\Users\Admin\AppData\Local\Temp\804b7e12cce616752363a3c260e5050d05d1c648696aa645caecbed74672933c.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:1152
- 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:2232

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
85KB

MD5
5f064546466f720e7801025c4c84e5ee

SHA1
2bd8dae23ee4fa2510badb83904155453f68bc7c

SHA256
0a0b6049c794c0e51a56157634b43febb9e60847fc32503c755b29e41c3df3b8

SHA512
e9ee971175d611be78844b3fcdf52d9ad573a755b4865f28d899744d5a9db431d43d422bdf81c7ca876b814e4011bfeb301d7e64897b0040f55f48a5c80d2bf1

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
6f495b4e9981d9f93487e7ca60c2fc99

SHA1
1d16966824c9d9c9f49ae6224f0c7097f844a073

SHA256
7c6aaed8c708d22b70fe354e42376e593bf9da3d4e374e33a6dd588e2c5efa0e

SHA512
cef4e922a02b453de31ceb6e56e28f2068648f13019687666411061a3361a772757167118302fd94d8d13f4e1f244cebba0902ac3fb1c7363eebed0ad58b1322

Download Submit
memory/1152-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1152-11-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/1152-18-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/1152-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1152-22-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download
memory/2232-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads