8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7

General

Target

8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Size

74KB
MD5

a7d7be50cf4724f4752f97644cf64fbc
SHA1

aaa43524fcca8bbd24e736119e22df6cbe7e301b
SHA256

8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7
SHA512

31587192e2aa2219c21ad7a83afa7eae88db7b6db933e3bf97ca0c1c38b499f993289a42d2a641a00a930c3a2e624f6963bcd719d84fd05a830f7168ecf6efc7
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOQ8:RshfSWHHNvoLqNwDDGw02eQmh0HjWOQ8

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2052	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.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	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.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	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
File created	C:\Windows\SysWOW64\¢«.exe	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
File created	C:\Windows\system\rundll32.exe	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1713817292"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	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	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1713817292"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2052	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
2052	rundll32.exe
2052	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2052	2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe	28
PID 2256 wrote to memory of 2052	2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe	28
PID 2256 wrote to memory of 2052	2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe	28
PID 2256 wrote to memory of 2052	2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe	28
PID 2256 wrote to memory of 2052	2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe	28
PID 2256 wrote to memory of 2052	2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe	28
PID 2256 wrote to memory of 2052	2256	8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe	28

C:\Users\Admin\AppData\Local\Temp\8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
"C:\Users\Admin\AppData\Local\Temp\8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.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:2256
- 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:2052

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

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
84KB

MD5
8798df07f151eca1c7658502985770dc

SHA1
a475e2df64cffdae9dddb90bcdbb87415896c08d

SHA256
515976f330eb4954a42e6f604a3ff8792d0d3b835e2d633373befb5246428135

SHA512
51234946dba0781db9411773a9cdf86d489045c9dca82cdefd45bd8c1bcf06051506f9542f595dd45c325e6ed590fcd772e0d30ef0f20492d725365a0cf16b01

Download Submit
\Windows\system\rundll32.exe

Filesize
80KB

MD5
bf2ca48fc4c9199c66f399caca4c4682

SHA1
449b55ea0a1eaef6f8278be293962ecd5d2e91a8

SHA256
840d0bffb32982bb26d473339655e02ca773b2c3dff530cb66222067c2149a09

SHA512
da6b4c223b3d6158491f217e3059f37cee11f4720e64cd47277c16d5a03cfde6fe2784e2fbabe9c2b154d1adc40cd9c74f16501a409e2fc3057d3d75ee4608e0

Download Submit
memory/2052-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2256-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2256-12-0x0000000000350000-0x0000000000366000-memory.dmp

Filesize
88KB

Download
memory/2256-17-0x0000000000350000-0x0000000000366000-memory.dmp

Filesize
88KB

Download
memory/2256-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2256-22-0x0000000000350000-0x0000000000352000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads