4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb

General

Target

4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Size

79KB
MD5

22f586428a23d8a3813a74bad16a63be
SHA1

407c4ad67298c5670488cf46c2e6811f0dbacb80
SHA256

4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb
SHA512

6716369581e8b9af9c649f0fb30de3d555bfb542c8ad32a25cc7c77c4974010a129388167873d3ff1f943f7859caa2ed38dc550d23cc84671a087bdbb27c972c
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOFV:GhfxHNIreQm+HiCV

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1800	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.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	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.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 created	C:\Windows\SysWOW64\¢«.exe	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
File created	C:\Windows\system\rundll32.exe	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718231984"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	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	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718231984"	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

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1800	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
1800	rundll32.exe
1800	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 1800	1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe	28
PID 1916 wrote to memory of 1800	1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe	28
PID 1916 wrote to memory of 1800	1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe	28
PID 1916 wrote to memory of 1800	1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe	28
PID 1916 wrote to memory of 1800	1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe	28
PID 1916 wrote to memory of 1800	1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe	28
PID 1916 wrote to memory of 1800	1916	4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe	28

C:\Users\Admin\AppData\Local\Temp\4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.exe
"C:\Users\Admin\AppData\Local\Temp\4ee6b9a9a12dc75385b8e0fa61ad66a0a9153b5823552dbc69c4dcef8af6f3bb.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:1916
- 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:1800

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
79KB

MD5
43b6b1351934b2e6a4d42fbd1b872486

SHA1
334654c3344aef3a6b917cf68a6ff33b22cafa69

SHA256
e553bd9e4914a5968246700b7d183c399c9cf86b48ab59599b12e9eff96b0ab9

SHA512
1a780b550fc2ea423be8b55e9a33da6edfb43586c07d91b46d85e032fd2a2d6264a48e0abb0ea282fe6152ee2779a4f58b575ac9e2d97e88fa4c9f679f24a93b

Download Submit
\Windows\system\rundll32.exe

Filesize
83KB

MD5
354744aeff005fedd4c06a97698cefce

SHA1
2635241da35ae027f958367d4069745d16923808

SHA256
72b87206fce3037b5a3f0a9c82a07db520cfb17ca181ca1a492bd2a9cc5793ef

SHA512
87335a7f590c10809fc9e7b5e5c866368194805a369118d63e421d79db54b4b37d1c823906d0566d75270bdf8db26936bfa1f0046cf1b62653fac2f1876a8351

Download Submit
memory/1800-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1916-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1916-12-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/1916-18-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/1916-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads