1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c

General

Target

1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Size

82KB
MD5

33d63589f4e394a9d2dfa5edd371d842
SHA1

67db49cd388ca23c6fe0918545640e6d980e1d09
SHA256

1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c
SHA512

b480633a01f7f5eeee4444852f13592e1805fd1d7d99bf46ccbe856a52dd7acc7bc1c7aec4aa9c5c76576aa171c451a67b009c5afc42cc7597518c5abc59af24
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOWtaha:GhfxHNIreQm+Hittaha

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3060	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.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	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
File created	C:\Windows\SysWOW64\¢«.exe	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
File opened for modification	C:\Windows\system\rundll32.exe	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	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\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717059016"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717059016"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3060	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
3060	rundll32.exe
3060	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 3060	2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe	28
PID 2032 wrote to memory of 3060	2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe	28
PID 2032 wrote to memory of 3060	2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe	28
PID 2032 wrote to memory of 3060	2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe	28
PID 2032 wrote to memory of 3060	2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe	28
PID 2032 wrote to memory of 3060	2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe	28
PID 2032 wrote to memory of 3060	2032	1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe	28

C:\Users\Admin\AppData\Local\Temp\1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.exe
"C:\Users\Admin\AppData\Local\Temp\1328af661ea3d5ba39c0c55fafb9a09e7d566607297cc15a7deeed9137789f5c.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:2032
- 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:3060

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
81KB

MD5
f5683ddca0d4d9992f3b1c04ec1b6f60

SHA1
dda5e47d43f7ad7228a0a602e9da50aecc65a1d6

SHA256
858a345ac0d4954b9ca46080111365829167e4a69b328afa1d8dc041c2cd06f7

SHA512
78885e406709e0958634fbd155d28684085ec691a1f819a82dbb8b06749c45c9a44ae5306de3f7ebb994119a8bc2e08b699854f1569f8250cdffe9cf67ad219a

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
f35c4a9d28ebd04254c8066447283dc4

SHA1
beca18f3bd2126d3f36acf10f3ebd43d5baa5099

SHA256
9919bedf832efa72021b9c07acb1745fc9a5b5f352472ebf671651cef00cb6a4

SHA512
6150f6d105dffacd4cecc2536b71e0883b109164b5aa241a110ebc302565ba1ffecc96fc6ac86b7e9d68e25bb2aaa1d9eb0b0a29e54ca24d724f0fcbc0d00089

Download Submit
memory/2032-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2032-11-0x0000000000340000-0x0000000000356000-memory.dmp

Filesize
88KB

Download
memory/2032-18-0x0000000000340000-0x0000000000356000-memory.dmp

Filesize
88KB

Download
memory/2032-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3060-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads