3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22

General

Target

3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
Size

74KB
MD5

e12f7aad79d31f4fca0bee7534836b99
SHA1

b7e74c62279c2149ffe93e0836dae840c3563d29
SHA256

3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22
SHA512

2f60bea0b687d209283c71a301c29a8881dd1b2bac5b23b32348a1015c3605a863e8009253b98c19dd09d6d240c113a246af82135f2c4293cc7f4db59ce15385
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO7l:RshfSWHHNvoLqNwDDGw02eQmh0HjWO7l

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2068	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.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	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.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\notepad¢¬.exe	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
File created	C:\Windows\SysWOW64\¢«.exe	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
File created	C:\Windows\system\rundll32.exe	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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"	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1695506557"	rundll32.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1695506557"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2068	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
2068	rundll32.exe
2068	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 2068	1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe	28
PID 1096 wrote to memory of 2068	1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe	28
PID 1096 wrote to memory of 2068	1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe	28
PID 1096 wrote to memory of 2068	1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe	28
PID 1096 wrote to memory of 2068	1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe	28
PID 1096 wrote to memory of 2068	1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe	28
PID 1096 wrote to memory of 2068	1096	3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe	28

C:\Users\Admin\AppData\Local\Temp\3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.exe
"C:\Users\Admin\AppData\Local\Temp\3aeb37918455a49547f3dd15a6844fa3f5e07d3802dd89cb69cc6588c3679b22.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:1096
- 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:2068

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
78KB

MD5
50255f41f09ab3bc69625fbb1af46600

SHA1
2f0e0c4da18d91c6bfc333ec95db09c08448bd76

SHA256
4af8232084a6b43b9cf4d2b573d30f6165c9a627aa238f926113f15cb688affd

SHA512
5be9ed5ef7b4db4e2ec701029d305200c435f614ab3bf4a7867b34d396ef23276ea4af30146e0edc96ad72f34eb0fafe374f76d4f0a3905804650a63bb082b9b

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

Filesize
74KB

MD5
82a6d5ad9ee29faade7d409a658dad0a

SHA1
956e5db5117001dac813bb7d232be28cd7c724df

SHA256
b1641f8e103ca3120fc939a21cb13f769bb3b70d4ccb0ceda0ff5ba9b5d530f7

SHA512
82bf8db89ec67017d8939e070d0c1b5a99c4f38b0a640ecef7a123296e9e288a87a37466a4c6ec97d867dec457c20632076348e3ffdfb3d47f57b16ddd8118c2

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

Filesize
74KB

MD5
82a6d5ad9ee29faade7d409a658dad0a

SHA1
956e5db5117001dac813bb7d232be28cd7c724df

SHA256
b1641f8e103ca3120fc939a21cb13f769bb3b70d4ccb0ceda0ff5ba9b5d530f7

SHA512
82bf8db89ec67017d8939e070d0c1b5a99c4f38b0a640ecef7a123296e9e288a87a37466a4c6ec97d867dec457c20632076348e3ffdfb3d47f57b16ddd8118c2

Download Submit
\Windows\system\rundll32.exe

Filesize
74KB

MD5
82a6d5ad9ee29faade7d409a658dad0a

SHA1
956e5db5117001dac813bb7d232be28cd7c724df

SHA256
b1641f8e103ca3120fc939a21cb13f769bb3b70d4ccb0ceda0ff5ba9b5d530f7

SHA512
82bf8db89ec67017d8939e070d0c1b5a99c4f38b0a640ecef7a123296e9e288a87a37466a4c6ec97d867dec457c20632076348e3ffdfb3d47f57b16ddd8118c2

Download Submit
\Windows\system\rundll32.exe

Filesize
74KB

MD5
82a6d5ad9ee29faade7d409a658dad0a

SHA1
956e5db5117001dac813bb7d232be28cd7c724df

SHA256
b1641f8e103ca3120fc939a21cb13f769bb3b70d4ccb0ceda0ff5ba9b5d530f7

SHA512
82bf8db89ec67017d8939e070d0c1b5a99c4f38b0a640ecef7a123296e9e288a87a37466a4c6ec97d867dec457c20632076348e3ffdfb3d47f57b16ddd8118c2

Download Submit
memory/1096-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1096-12-0x00000000003C0000-0x00000000003D6000-memory.dmp

Filesize
88KB

Download
memory/1096-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1096-20-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2068-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads