0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9

General

Target

0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Size

78KB
MD5

5599d7868bd1287150ab8a1d6bccc7bf
SHA1

74b69832a55f056d3bb2e4da62f53de362ec3dfd
SHA256

0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9
SHA512

063dcbf572e47256e2f31e1269f8e7742b32410cbbd37ebab65e0ca2980026e936d9859208cd2b55febe5cf1b6c56d233c35f429b08aa7ca567557fb7cf46573
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO2P:RshfSWHHNvoLqNwDDGw02eQmh0HjWO2P

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3576	rundll32.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	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.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 opened for modification	C:\Windows\SysWOW64\¢«.exe	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
File created	C:\Windows\SysWOW64\¢«.exe	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
File created	C:\Windows\system\rundll32.exe	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1693191184"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1693191184"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3576	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
3576	rundll32.exe
3576	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4404 wrote to memory of 3576	4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe	81
PID 4404 wrote to memory of 3576	4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe	81
PID 4404 wrote to memory of 3576	4404	0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe	81

C:\Users\Admin\AppData\Local\Temp\0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.exe
"C:\Users\Admin\AppData\Local\Temp\0b07fb523fc6eb277b443968b841aa8b17623c1fa1765399cac978afbad40bd9.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:4404
- 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:3576

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
73KB

MD5
187b642cae94a21375a8c89dccb0a09b

SHA1
68acd997cda6f0c7c072894d3b65168d59ab27c7

SHA256
734ccec367dbe4e8dc0ab0e3814fcf632298b5acf17fd3bdebc3fc72ef8e0e39

SHA512
739c0f58bc231042eab7ebface061a7318d27fac1cf544f20b6e3121d49b872aa641518e8fd584b3eb68cc228e96bdd3c70d576c52a5799ed29b415307374016

Download Submit
C:\Windows\System\rundll32.exe

Filesize
78KB

MD5
f4c7a484df4f7d06b21adc31dabe0b5b

SHA1
d693d9571943c839213aee524a7db10563a01c63

SHA256
2b48759e2c424a97600b9f4f0f3c63d36b4daf19a82a9c663bca95ecb3ae6be2

SHA512
5185ffc2fda3643f006a0d1debb060bb3a7a8d61cf52d5680d22e96eba1987ef5ad18b2d56be082f830cc7dddc58d0575a17173b264eea9075b96fc090ba0184

Download Submit
C:\Windows\system\rundll32.exe

Filesize
78KB

MD5
f4c7a484df4f7d06b21adc31dabe0b5b

SHA1
d693d9571943c839213aee524a7db10563a01c63

SHA256
2b48759e2c424a97600b9f4f0f3c63d36b4daf19a82a9c663bca95ecb3ae6be2

SHA512
5185ffc2fda3643f006a0d1debb060bb3a7a8d61cf52d5680d22e96eba1987ef5ad18b2d56be082f830cc7dddc58d0575a17173b264eea9075b96fc090ba0184

Download Submit
memory/3576-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4404-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4404-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads