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
1492	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	563ca131a21ed75620f5e6874a180e20.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	563ca131a21ed75620f5e6874a180e20.exe
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

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 (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	563ca131a21ed75620f5e6874a180e20.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\txtfile\shell\open\command	563ca131a21ed75620f5e6874a180e20.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718850065"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	563ca131a21ed75620f5e6874a180e20.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718850065"	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\" %*"	563ca131a21ed75620f5e6874a180e20.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe
4848	563ca131a21ed75620f5e6874a180e20.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1492	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4848	563ca131a21ed75620f5e6874a180e20.exe
1492	rundll32.exe
1492	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 1492	4848	563ca131a21ed75620f5e6874a180e20.exe	83
PID 4848 wrote to memory of 1492	4848	563ca131a21ed75620f5e6874a180e20.exe	83
PID 4848 wrote to memory of 1492	4848	563ca131a21ed75620f5e6874a180e20.exe	83

C:\Users\Admin\AppData\Local\Temp\563ca131a21ed75620f5e6874a180e20.exe
"C:\Users\Admin\AppData\Local\Temp\563ca131a21ed75620f5e6874a180e20.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:4848
- 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:1492

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
28KB

MD5
1e8bb7e04681b709db4412f87cc0d51b

SHA1
f060bdad7f9b87f3e216e4627afb74fd8e62a842

SHA256
b56dab9110348217c94ea36de79652a4371d812a73eb1d7aae22d74ec1123235

SHA512
4367c701a5dc10be2b2dfaadab4aa2f3a2b23cdccc601415249a4393e8bd3eeabe016f4dd03f540d2a1879d93267f36db88d65717c1dbfed7c1ed7443379f064

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

Filesize
31KB

MD5
b6dfc458abfa3952353ba390334fe62b

SHA1
401c626f1bcc2694707016f981af880d278164f9

SHA256
6a61f7491a8a3c4dce99d3f8d862a83f9cab752042f455f4af3e44d2d645180a

SHA512
ac1aa1c8a76f27658e6ec8c49143c698787824237e501c3f6dbeaefeac525eb72509b1c2ea6fb4b358b859468c36be49daef72300f961258c750aca9fc9bcfa6

Download Submit
memory/1492-22-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-21-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-28-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-20-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-27-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-23-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-24-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-25-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1492-26-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4848-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4848-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads