074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526

General

Target

074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
Size

86KB
MD5

17b95cec4c0dff1840cf6990833b5937
SHA1

c05bddaf7b3411b3f0f5e87afdb13a6084848ddb
SHA256

074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526
SHA512

518958601696fd2f8904fd406ffe633798f14e4cabc281fcbd772e091cd4fb2daee4e3725e1bf08cdbf25a9efb7944314921b08845209ce51326128d3cb4e406
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOmaFeHA7yhEMw/:GhfxHNIreQm+Hi7aFeHA7yhEMw/

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

rundll32.exe

pid process

3052 rundll32.exe

pid	process
3052	rundll32.exe

Loads dropped DLL 2 IoCs

Processes:

074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

pid	process
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exerundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.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

Processes:

074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
File created	C:\Windows\SysWOW64\¢«.exe	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

Drops file in Windows directory 2 IoCs

Processes:

074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

description	ioc	process
File opened for modification	C:\Windows\system\rundll32.exe	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
File created	C:\Windows\system\rundll32.exe	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

Modifies registry class 15 IoCs

Processes:

rundll32.exe074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716520178"	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
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716520178"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

pid	process
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundll32.exe

pid process

3052 rundll32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exerundll32.exe

pid process

1280 074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
3052 rundll32.exe
3052 rundll32.exe

pid	process
3052	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe

description	pid	process	target process
PID 1280 wrote to memory of 3052	1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe	rundll32.exe
PID 1280 wrote to memory of 3052	1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe	rundll32.exe
PID 1280 wrote to memory of 3052	1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe	rundll32.exe
PID 1280 wrote to memory of 3052	1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe	rundll32.exe
PID 1280 wrote to memory of 3052	1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe	rundll32.exe
PID 1280 wrote to memory of 3052	1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe	rundll32.exe
PID 1280 wrote to memory of 3052	1280	074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.exe
"C:\Users\Admin\AppData\Local\Temp\074936cdb03ade6fd40f433ba59cf5766aa9e8d15362b1714c83fae1240a0526.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:1280
- 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:3052

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
81KB

MD5
7738b550bb462e5fc18e0db5c9c36650

SHA1
ad00f41390ef8aa1c7c4f108f35155c02fd19f76

SHA256
be926debe14b80ffc74c6e7fa90fae2fe9064040846a5758264fd90057aab7b1

SHA512
16270e98a3741af462402dc2a960ad664f0df0f412b723637b55ecfd29e4028e4ceb24a8a94b7b270605a5cbd053e59367a0873bf8f54aa31f67db5b9d262d6a

Download Submit
\Windows\system\rundll32.exe

Filesize
74KB

MD5
07a4c9478618edbd7f094120f44b678a

SHA1
ddb16d9f3676ccd73ccfe579f6920c8b022c6b22

SHA256
afcb86c25a1be21b76dc2154fcf7e1dcc2fe457e74e9c8f1d70a24ba6353b2f0

SHA512
ba442c14fb8fda25c32c9f49197db23faddc487d34d3aa2725ef4c3dc6c24de76e95e370e3ef7a9f2283f548688dbdcb71b53fcbd43b6b230a3fcb78f2c0c6e0

Download Submit
memory/1280-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1280-18-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download
memory/1280-17-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download
memory/1280-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1280-21-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads