20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763

General

Target

20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
Size

73KB
MD5

0ba2c7974bb5c1579a580666fa0d7b27
SHA1

a80468375846d78ff190f0bc8d78b0d261de5c28
SHA256

20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763
SHA512

c977306373100b3c0edd3d79192655538a9f697574d64867fa7170faad765d18a4755137ff9d87b01d9127ca3ea5b250da667669e390505964393645ef16f721
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO1:RshfSWHHNvoLqNwDDGw02eQmh0HjWO1

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2956	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.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	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
File created	C:\Windows\SysWOW64\¢«.exe	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
File opened for modification	C:\Windows\system\rundll32.exe	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718303804"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718303804"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2956	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
2956	rundll32.exe
2956	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2956	2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe	28
PID 2924 wrote to memory of 2956	2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe	28
PID 2924 wrote to memory of 2956	2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe	28
PID 2924 wrote to memory of 2956	2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe	28
PID 2924 wrote to memory of 2956	2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe	28
PID 2924 wrote to memory of 2956	2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe	28
PID 2924 wrote to memory of 2956	2924	20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe	28

C:\Users\Admin\AppData\Local\Temp\20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.exe
"C:\Users\Admin\AppData\Local\Temp\20a229243897ff05c0de73ef94e78812ebc7afcede2ce85fa1ccc4f9422e3763.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:2924
- 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:2956

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
2e707393d552f90d2f4806932a008e6c

SHA1
46edd58c022d3a202fc55aa151ab57c6dc36262e

SHA256
b665c2301ccf48a0e3f1ca5c65df40c34b00debb74662867a801957da12ebdfc

SHA512
89a945bb117d75ba62f1e3eb08ab31cd6c476d5eb6a662daf3aa15e66d724e12fc509253fe38443e41b50b056db1e3907cea4f29dbbdc32eec1072627c2fac16

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
5bb981e56882dd2913d7325c09de31f7

SHA1
b46855f141798e7a5bf36dde5f0be98517b14e68

SHA256
32c6fac328a46da73587975248b076d1b49868362493886e9a855b087b6024de

SHA512
e2c2e7b4d4f5bed64f59a0bd9e96ad4b91185b471b37701372a83018c0634bf6bea54230e4b0390b4e67ffdc5df4900cb366b64c783c7616fa1086aabd8bbb75

Download Submit
memory/2924-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2924-12-0x0000000000330000-0x0000000000346000-memory.dmp

Filesize
88KB

Download
memory/2924-18-0x0000000000330000-0x0000000000346000-memory.dmp

Filesize
88KB

Download
memory/2924-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2924-21-0x0000000000330000-0x0000000000332000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads