5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9

General

Target

5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Size

77KB
MD5

36166cbc220ff39eef3b119788a3b10e
SHA1

697cfb3994ea7f7b37ffc3c8707ef91c5513c9d9
SHA256

5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9
SHA512

bc5684f58212b0389b10c2a4e920eb38435044712ddcea103b5cd4c9691951c3820dd38f8210b995b4dca4e4c3f97a74aca1e8b93a60dd7e750172aec01613c5
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO27:RshfSWHHNvoLqNwDDGw02eQmh0HjWOZ8

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2708	rundll32.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\" %*"	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.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
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\¢«.exe	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
File created	C:\Windows\system\rundll32.exe	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717137154"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717137154"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.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"	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2708	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
2708	rundll32.exe
2708	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3748 wrote to memory of 2708	3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	82
PID 3748 wrote to memory of 2708	3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	82
PID 3748 wrote to memory of 2708	3748	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	82

C:\Users\Admin\AppData\Local\Temp\5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
"C:\Users\Admin\AppData\Local\Temp\5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.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:3748
- 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:2708

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
75KB

MD5
1c0d6999f75527bc717d8081f5dbf44d

SHA1
ee6880aa7d2fa6b96921216ccd12c12bc04a62a0

SHA256
eb0126eb91131bad90d11e28ce2bcf5634013ab3950539032a4ac7dcee3f12bc

SHA512
0f4935dc1687524ffabb45d5d73f0a0b5a98f126e724e657a752d0c73f8a786fe3011fc60936a86af7812b849973a21dcc687864c57b51ebd1e0ea0b6689bd3a

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

Filesize
83KB

MD5
963f2b06817e1af58f7b1fdbd58c9e75

SHA1
8e4f76cea602b376a24792542f6ed2b27f4d9cf8

SHA256
40b7099d59cc6a75e3a6417aa376f997d8a477cd44e2cabc58ee7113affda4dc

SHA512
309b794cb57fac574815c67c4f81d1dbf7388baeae649643400e522772f3fd349499a13bf0a6036c77e7bf4bf004c6ba50f7dfb6ee47a8421b5fd4d75ea5602a

Download Submit
memory/3748-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3748-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads