ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844

General

Target

ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Size

84KB
MD5

d14b777393a567f893b0fd5f262bb86e
SHA1

ef32ef1c1389974574d2079629c66e93bee84dff
SHA256

ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844
SHA512

7bc3969b818fbd37e5a6c2de2a584b451dd7943ee48656053c7cf0ecf974d69128627e5f7bca3762329024a12ad379f2e032c367f6e05d9cc4fc99fd4ba43c85
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOPfMF/GLca:GhfxHNIreQm+HiSfMF/GLca

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1408	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
File created	C:\Windows\SysWOW64\¢«.exe	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
File created	C:\Windows\system\rundll32.exe	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1720950136"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1720950136"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1408	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
1408	rundll32.exe
1408	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 1408	2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe	31
PID 2360 wrote to memory of 1408	2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe	31
PID 2360 wrote to memory of 1408	2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe	31
PID 2360 wrote to memory of 1408	2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe	31
PID 2360 wrote to memory of 1408	2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe	31
PID 2360 wrote to memory of 1408	2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe	31
PID 2360 wrote to memory of 1408	2360	ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe	31

C:\Users\Admin\AppData\Local\Temp\ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.exe
"C:\Users\Admin\AppData\Local\Temp\ae91a085e6b57eb545257ee958036ff877de0e4e95aeb365a2199361fad25844.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:2360
- 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:1408

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
77KB

MD5
e983c6e77d7bf387e1db3e2b33ef1652

SHA1
c02b5776e8bab4659d594485d213d3c7f609e644

SHA256
c72dff35f7ed17a31357750986ea644c2d12ed2ca321fcb0da08996f6570a609

SHA512
2127a80bcb857b3904f99cb52572a9873e6cf2cc96d7055dd77040f01922fd451e55d6d71777abe3a1d2d8c674218fe86da5d9fe65567e14e466f86541063660

Download Submit
\Windows\system\rundll32.exe

Filesize
83KB

MD5
354081abc9479bd6454952001444c5fb

SHA1
5e14964f7fb0c27cf910fb72fe30805d08fb577c

SHA256
fbd475c942bb2bf97c4903ddd92ada8a3066613ea5b4767ad41002e4bde16ba6

SHA512
67e569b1315e9a8c7f9dcb5ac312cc015a6160a70a6fd78e0d01af0cf4df21a9626f0eba5c077184d3222d42c6ea008ad2f2f0c41444c0c6cd060bdcd79ecc78

Download Submit
memory/1408-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2360-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2360-12-0x0000000000280000-0x0000000000296000-memory.dmp

Filesize
88KB

Download
memory/2360-19-0x0000000000280000-0x0000000000296000-memory.dmp

Filesize
88KB

Download
memory/2360-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2360-22-0x0000000000280000-0x0000000000282000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads