a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153

General

Target

a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
Size

78KB
MD5

ed7bf79cb720cbe7b24af59bf1022a6b
SHA1

9db9274a2cb439fbfd6b61fc61695015c5097d2c
SHA256

a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153
SHA512

b82cc8bfe29d51e9016e85d5265b6fcf6a5fc3cc1ea9dfa0d60776dc109f110371838998ffcfb99df2c5c8844bfafd2aaf25475858c8f680422697b83253a121
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO5/s:GhfxHNIreQm+Him/s

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1708	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.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\" %*"	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.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	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
File created	C:\Windows\SysWOW64\¢«.exe	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
File created	C:\Windows\system\rundll32.exe	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.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\" %*"	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1725552795"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1725552795"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1708	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
1708	rundll32.exe
1708	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 1708	2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe	30
PID 2344 wrote to memory of 1708	2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe	30
PID 2344 wrote to memory of 1708	2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe	30
PID 2344 wrote to memory of 1708	2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe	30
PID 2344 wrote to memory of 1708	2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe	30
PID 2344 wrote to memory of 1708	2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe	30
PID 2344 wrote to memory of 1708	2344	a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe	30

C:\Users\Admin\AppData\Local\Temp\a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe
"C:\Users\Admin\AppData\Local\Temp\a7fafad0dc16fd5696d09a5cbfb99e6038a0269ab13aba97f9253ba64f5c9153.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:1708

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
73KB

MD5
2a7212ff9f9963f671243ebe156788fa

SHA1
d9824c2528267ee61c298b862e4d9d9dd7de56e4

SHA256
476840e1ee879a6ba9189d8b583204d322813f820fd5ce77d6c86b008ceb897e

SHA512
d7de1806b68e42fe603305435af63512fe28fe894bf1e08b5357c3737695b40d64500dd8aa77c612031e65736ae156bb819499f495813faf7ccd70253188c079

Download Submit
\Windows\system\rundll32.exe

Filesize
87KB

MD5
3fb3ca456bffe7384511cca80bba7149

SHA1
6635bc0d56e93dcd8686a8a0d36ae76f7daa6e1c

SHA256
6bc4e681960696c99ae82a5b5190757c605bd85868b1abf42357226581b4bcdb

SHA512
6181fab9a64f57c03326b4751be5b5469a8ce025f317a7d05878aa627d2f63106be562b2313887f7590c41664bc7868c4e2c51ae8f99241f19b2a1e8d094538a

Download Submit
memory/1708-22-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2344-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2344-12-0x00000000002A0000-0x00000000002B6000-memory.dmp

Filesize
88KB

Download
memory/2344-17-0x00000000002A0000-0x00000000002B6000-memory.dmp

Filesize
88KB

Download
memory/2344-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2344-21-0x00000000002A0000-0x00000000002A2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads