684d7931efcf8cbeb69602aec6806d5f4fd2ff76518be11cb9b91f41318de3a1

General

Target

563ca131a21ed75620f5e6874a180e20.exe
Size

31KB
MD5

563ca131a21ed75620f5e6874a180e20
SHA1

9fd5685f16bbac96f671a4a9d53217aab485fd92
SHA256

684d7931efcf8cbeb69602aec6806d5f4fd2ff76518be11cb9b91f41318de3a1
SHA512

74733876dcce9c347f01c37d9fb1120511c7478e5a99dbe39201e672f9977fa04d67d9c216f95049da68384390a07a5ba3f4920c0bdd7a9d73fb05e6346ab5b7
SSDEEP

768:PVEHJqjHyGvwFylDpulVSQJrE/2QmlCYZUTyn838d0o0:PH2nylslwHCCL

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2872	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.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\" %*"	563ca131a21ed75620f5e6874a180e20.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	563ca131a21ed75620f5e6874a180e20.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	563ca131a21ed75620f5e6874a180e20.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	563ca131a21ed75620f5e6874a180e20.exe
File created	C:\Windows\SysWOW64\¢«.exe	563ca131a21ed75620f5e6874a180e20.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	563ca131a21ed75620f5e6874a180e20.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	563ca131a21ed75620f5e6874a180e20.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	563ca131a21ed75620f5e6874a180e20.exe
File created	C:\Windows\system\rundll32.exe	563ca131a21ed75620f5e6874a180e20.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718850067"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	563ca131a21ed75620f5e6874a180e20.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	563ca131a21ed75620f5e6874a180e20.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	563ca131a21ed75620f5e6874a180e20.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	563ca131a21ed75620f5e6874a180e20.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	563ca131a21ed75620f5e6874a180e20.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	563ca131a21ed75620f5e6874a180e20.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	563ca131a21ed75620f5e6874a180e20.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718850067"	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 14 IoCs

pid	Process
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe
2420	563ca131a21ed75620f5e6874a180e20.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2872	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2420	563ca131a21ed75620f5e6874a180e20.exe
2872	rundll32.exe
2872	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2872	2420	563ca131a21ed75620f5e6874a180e20.exe	28
PID 2420 wrote to memory of 2872	2420	563ca131a21ed75620f5e6874a180e20.exe	28
PID 2420 wrote to memory of 2872	2420	563ca131a21ed75620f5e6874a180e20.exe	28
PID 2420 wrote to memory of 2872	2420	563ca131a21ed75620f5e6874a180e20.exe	28
PID 2420 wrote to memory of 2872	2420	563ca131a21ed75620f5e6874a180e20.exe	28
PID 2420 wrote to memory of 2872	2420	563ca131a21ed75620f5e6874a180e20.exe	28
PID 2420 wrote to memory of 2872	2420	563ca131a21ed75620f5e6874a180e20.exe	28

C:\Users\Admin\AppData\Local\Temp\563ca131a21ed75620f5e6874a180e20.exe
"C:\Users\Admin\AppData\Local\Temp\563ca131a21ed75620f5e6874a180e20.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:2420
- 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:2872

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
31KB

MD5
cd7f33c9b3ba886c9c93a11562eb98f0

SHA1
cf11530a9112ab74b284e496df1c63f8f630ae5c

SHA256
8cd1b34b067963729c8a7a07bc3b26b7a32f19681aec8737e1c79e886b489e5c

SHA512
1992b4eee7f16300050c7e7f896d212a7e07bc0eb97b3575cdb9f00247e4ca8748534c12316508d354f6b7bc10efe6882399834b7f59264209427e3d9942df56

Download Submit
\Windows\system\rundll32.exe

Filesize
33KB

MD5
0e19584eaf8123c106c1dc5145d2860a

SHA1
9bab8173eb07de253adf14cecf852e8b71e46e2a

SHA256
c135408925555267d6e3668472e91da23ec747e2f48f1bf60ff46cfab8ec1d5b

SHA512
7bf237d47629207975b356b03dcf3631e6cc3c1be769e66d10c65a57c7ff951b0a7b7edd7a35893e32cdabdd1ebe73e642431ed2ed40ded5bc02efcd48eafd49

Download Submit
memory/2420-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-12-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/2420-20-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/2420-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-24-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-23-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-21-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-25-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-26-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-27-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-28-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-29-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-30-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-31-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-32-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-33-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2872-34-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads