299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820

General

Target

299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Size

78KB
MD5

a0bb490e474ace55883a9c8b54045d78
SHA1

d59c6d7b415bf8c7dc13f143db161e421c62be95
SHA256

299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820
SHA512

27c7b8daf54e496c5517bc1d951b36a0ba224174d160bd0998fca0401f94be3561f2176ec1b511d6f6f5a7db456eb5cf8c54471f8a497330afb7f11924073e50
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOlzE7I3:GhfxHNIreQm+HiyzE7I3

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1512	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	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.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	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
File created	C:\Windows\SysWOW64\¢«.exe	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
File created	C:\Windows\system\rundll32.exe	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.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	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.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.exe %1"	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1724656192"	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	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1724656192"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1512	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
1512	rundll32.exe
1512	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 648 wrote to memory of 1512	648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe	87
PID 648 wrote to memory of 1512	648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe	87
PID 648 wrote to memory of 1512	648	299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe	87

C:\Users\Admin\AppData\Local\Temp\299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe
"C:\Users\Admin\AppData\Local\Temp\299f9535f0fe78447f263f15fdcd14cf7c26507fd9601a1940f835e9f0420820.exe"
1⤵
- 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:648
- 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:1512

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
83KB

MD5
ad5f5aab3f9e9d7c38efcbecbc93b747

SHA1
fa065ba5b7fa6e0fb9c2b53eae597295fd5d4834

SHA256
a2b638b1dcabdb1921047e355a09f57a76f5b389146adf42b56a0658ca98f398

SHA512
0ae0cb930d7b0d08d2d05b7f3b076e446caecc695071d19c5dac7468eff607354f6c243104c7c12d0c2508588c956b2820dc905f7a250441f45518d5fa288621

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

Filesize
85KB

MD5
6801d02b18953697c977730d226cf621

SHA1
ef9c04a8bbd27b7f2b42b2ce6e01d2c0db841ae8

SHA256
c9037a6a3dcf579b92508d027117f3294edb470570edaa371e4c24dd3debc6e7

SHA512
c85b8e60a6fa06da2e8703cad2389f406402a0981dce74a3976ee56599104430ef86a357147d32eb83c2ad78c707ba86fbff817a1a27404ca4702bac3bdbffed

Download Submit
memory/648-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/648-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1512-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads