36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd

General

Target

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Size

83KB
MD5

b61a193bd0d0a490df14fa1f4747760a
SHA1

aaca3491a486d0a9c3afff430b5db2d8df8510b6
SHA256

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd
SHA512

f974ed7bf700710020a2107d6e233c428a82cbcd1f8f1db5a740f12d40b744078786a33fc08a4e384aed28f491a6cc7a11b8694913a1679d14668d4d2a7f64d1
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOyO6JuQEM8+:GhfxHNIreQm+HiVO6JuQEM8+

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

rundll32.exe

pid process

2768 rundll32.exe

pid	process
2768	rundll32.exe

Loads dropped DLL 2 IoCs

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

pid	process
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exerundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.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	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

Drops file in System32 directory 4 IoCs

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
File created	C:\Windows\SysWOW64\¢«.exe	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

Drops file in Windows directory 2 IoCs

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

description	ioc	process
File opened for modification	C:\Windows\system\rundll32.exe	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
File created	C:\Windows\system\rundll32.exe	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

Modifies registry class 15 IoCs

Processes:

rundll32.exe36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716521581"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716521581"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

pid	process
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundll32.exe

pid process

2768 rundll32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exerundll32.exe

pid process

1724 36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
2768 rundll32.exe
2768 rundll32.exe

pid	process
2768	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

description	pid	process	target process
PID 1724 wrote to memory of 2768	1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe
PID 1724 wrote to memory of 2768	1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe
PID 1724 wrote to memory of 2768	1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe
PID 1724 wrote to memory of 2768	1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe
PID 1724 wrote to memory of 2768	1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe
PID 1724 wrote to memory of 2768	1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe
PID 1724 wrote to memory of 2768	1724	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
"C:\Users\Admin\AppData\Local\Temp\36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.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:1724

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:2768

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
79KB

MD5
8c4ee77923766d34f723f7b08c726bd8

SHA1
1464d0b57a09264a3cc95c08926f23b80c842bb4

SHA256
dd0b4d41551bb5d65b350423d252924c43d8da1c18917e7429f085b3f614c6b8

SHA512
9e7789393ba68f3882261e47783ac11a4985dba65588bab380a62998f1f99bb93dc88b116870b7813ab402ec1789443c93815393c88e2e103d78dd620c90d2cd

Download Submit
\Windows\system\rundll32.exe
Filesize
81KB

MD5
8a7011ed3620f09d0648f1c9be79ee8b

SHA1
f04d075ed55d5a8f1c2df123c2e803af8b8cfcab

SHA256
a9186d904cd0741af1758b7e704287c8e69c66329054ab85a5cd599f8c260ed8

SHA512
a4e8ff73ce6eff40cbdb5bb89cb88aacf6086685adb8f4a7c979ee1d109ceeaa7840400c010db114615fc71da2017466b6492da793c5a2a70d1515f43a46db77

Download Submit
memory/1724-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1724-18-0x0000000000360000-0x0000000000376000-memory.dmp

Filesize
88KB

Download
memory/1724-19-0x0000000000360000-0x0000000000376000-memory.dmp

Filesize
88KB

Download
memory/1724-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1724-22-0x0000000000360000-0x0000000000362000-memory.dmp

Filesize
8KB

Download
memory/2768-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads