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

1948 rundll32.exe

pid	process
1948	rundll32.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

rundll32.exe36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

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	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	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\¢«.exe	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
File created	C:\Windows\SysWOW64\¢«.exe	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
File created	C:\Windows\SysWOW64\notepad¢¬.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:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exerundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716521582"	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
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\txtfile\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	rundll32.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.exe %1"	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716521582"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

pid	process
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundll32.exe

pid process

1948 rundll32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exerundll32.exe

pid process

3076 36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
1948 rundll32.exe
1948 rundll32.exe

pid	process
1948	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe

description	pid	process	target process
PID 3076 wrote to memory of 1948	3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe
PID 3076 wrote to memory of 1948	3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe
PID 3076 wrote to memory of 1948	3076	36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.exe
"C:\Users\Admin\AppData\Local\Temp\36488a2365f331fcfb5fc83a989b4bcd9a33d1ba4190e89d474eceb2942fc2bd.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:3076

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:1948

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
82KB

MD5
7bae4fc14d58daf7d63f556e8afa1ba9

SHA1
14f224f9bfa0ed48903d0613f6dfd8ceaeed73d2

SHA256
b2a7ed17bd2577279575f3e97d6734ad726dc826bd6464b7b0ae77968cf9ad1e

SHA512
13e902c7dcb1c805916c284289eadc66fd0036eb81c5ff57abf03f72ec2dddb095247bd47e499ef143461e47bf4a1aea8392548ad97bb67dbb6af31bd565a27c

Download Submit
C:\Windows\System\rundll32.exe
Filesize
74KB

MD5
f0253b750b4227812fa87cad2df0249e

SHA1
82299d7fd4d97b7d13d27a76a0adf0eb22933682

SHA256
0d810caae2ef046479db8d707946a024163f7013ccb1e84fac1fb774d4fe718b

SHA512
21b8cd7f9175ecb2d557abeb07b3ae3463487e3493c95f229d3fd9e71b1deee0b65a9ac245ee71976de21c9ae0bc957643f542b806cdb1abbe0908eba027be58

Download Submit
memory/3076-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3076-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads