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
2144	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.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
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

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
File created	C:\Windows\SysWOW64\¢«.exe	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.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
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\MainSetup = "1717137153"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717137153"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	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
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.exe %1"	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	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

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2144	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
2144	rundll32.exe
2144	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2144	1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	28
PID 1700 wrote to memory of 2144	1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	28
PID 1700 wrote to memory of 2144	1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	28
PID 1700 wrote to memory of 2144	1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	28
PID 1700 wrote to memory of 2144	1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	28
PID 1700 wrote to memory of 2144	1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	28
PID 1700 wrote to memory of 2144	1700	5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe	28

C:\Users\Admin\AppData\Local\Temp\5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.exe
"C:\Users\Admin\AppData\Local\Temp\5fb6dbac85c623a77961b5f68a7e08ebd8882fe1e005a1aec831ecc126c531e9.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:1700
- 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:2144

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
78KB

MD5
64cdd58b5e5746a6faeb245dac88dc54

SHA1
96c7f328cbfa42cc5a7c355d0987123105b5d876

SHA256
bd943c26ef7c6a95f57349d5a8cf50b382a39fcf43d13ebbeb126315f93294c9

SHA512
f54201f983c3c9bff13d3202742ef680c1af6f5ca0cc791ec4ae4417bcf9a67c1907be3a26c8150160371e3a9526bd0a9f04ab61f02d54af3dd4e202f401c6db

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
77c2974820356a092ad178fc5875282d

SHA1
0b44af0ccebc243d3de32b9cb40780fdf248ba83

SHA256
7efac02057e4f4db71c22b63b8577d35e41dda40f032cdb45cb7bb82a4390c15

SHA512
ad2cabaf6beeb59632cabdf95a5b200d525aab0c5d57d0b332cd209a681e17544a0c3d2590e3abd754a46a404f854f4bfdd5a057c669b34019dafc665579f875

Download Submit
memory/1700-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1700-13-0x00000000005B0000-0x00000000005C6000-memory.dmp

Filesize
88KB

Download
memory/1700-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1700-21-0x00000000005B0000-0x00000000005B2000-memory.dmp

Filesize
8KB

Download
memory/2144-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads