ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335

General

Target

ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Size

77KB
MD5

f5997e9fa0254777e5ed3f63915054cf
SHA1

1cd03573fb15e9d687a5c3befd099ff4739fac1f
SHA256

ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335
SHA512

98c105e0632848d86b972260aeffa1d4624d2efaa309c2da66fd4d2a0fb7df4b4cb15784152c088f15dc3c782bdd3fb9b95088262afb17483d580c0c5099b07b
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO6Zi:GhfxHNIreQm+Hi5Zi

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2360	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	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.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\notepad¢¬.exe	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
File created	C:\Windows\SysWOW64\¢«.exe	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
File created	C:\Windows\system\rundll32.exe	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717137140"	rundll32.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"	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717137140"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.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

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2360	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
2360	rundll32.exe
2360	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 2360	4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe	85
PID 4980 wrote to memory of 2360	4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe	85
PID 4980 wrote to memory of 2360	4980	ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe	85

C:\Users\Admin\AppData\Local\Temp\ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.exe
"C:\Users\Admin\AppData\Local\Temp\ae40d0b175870a11adb1fa3d9ec17ce6edd3e2daef5afa1202d8bef7d08cc335.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:4980
- 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:2360

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
80KB

MD5
94e1c89f26d47fbc4148084d3ecad0f2

SHA1
df45c12874a1a58f60640c5bd636939c19e802bc

SHA256
87165a41f5640cd20d45eb3b8078fe36bc84fab7c9cf0f0a964722fd9f9ab843

SHA512
e24169148f9c6e955b92708f91936e8424c0b8e502e9696a8a2aad1abab1cd5c80e5c50ee7daca80853af212c4c2a4e83c9afa28e3cfd82b8b71844e5174e62b

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

Filesize
77KB

MD5
53c37bebabc96e0821b9e27b0909b0af

SHA1
1c7c29c7afe85817aefb7904af680b1ca94fc627

SHA256
dcca3c60b40ba3588dd177534f592f79dea3b91b506208aa67013f1f40c4c56a

SHA512
6f2d18513e4658c29f334edb45a4fc5e21084ffb353bd4d45fb9ec8e613e6b837f9e806165b3eb1bd595156b61b9eaa2950a679cc6308fe5a48dbcc4f0cd6e26

Download Submit
memory/2360-12-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4980-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4980-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads