bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923

General

Target

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Size

82KB
MD5

65fa62a3380c2ce042a21132f8ca8ba3
SHA1

09aa217ab7d85e2e72784a87b7b674556f3005d1
SHA256

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923
SHA512

7d9e886de557dc19c9d70961fb094ad8e1ee035dce57d3e722a89da01091e8c2bc26fe71a9009081a26c2b1a5f5e49c929c3bb7212ed00af2e7e1cc19d26ffe3
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO4BKyRTL:GhfxHNIreQm+HiHBKyRTL

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

rundll32.exe

pid process

2860 rundll32.exe

pid	process
2860	rundll32.exe

Loads dropped DLL 2 IoCs

Processes:

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe

pid	process
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exerundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.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

Processes:

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
File created	C:\Windows\SysWOW64\¢«.exe	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe

Drops file in Windows directory 2 IoCs

Processes:

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe

description	ioc	process
File opened for modification	C:\Windows\system\rundll32.exe	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
File created	C:\Windows\system\rundll32.exe	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe

Modifies registry class 15 IoCs

Processes:

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exerundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716517979"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716517979"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe

pid	process
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundll32.exe

pid process

2860 rundll32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exerundll32.exe

pid process

2988 bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
2860 rundll32.exe
2860 rundll32.exe

pid	process
2860	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe

description	pid	process	target process
PID 2988 wrote to memory of 2860	2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe	rundll32.exe
PID 2988 wrote to memory of 2860	2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe	rundll32.exe
PID 2988 wrote to memory of 2860	2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe	rundll32.exe
PID 2988 wrote to memory of 2860	2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe	rundll32.exe
PID 2988 wrote to memory of 2860	2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe	rundll32.exe
PID 2988 wrote to memory of 2860	2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe	rundll32.exe
PID 2988 wrote to memory of 2860	2988	bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.exe
"C:\Users\Admin\AppData\Local\Temp\bc80481e94a11a1f646b77948158a7407338fb1485ecffbeae32a1084d20f923.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:2988

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:2860

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe
Filesize
75KB

MD5
4d085794a83b7a3ce3041034d194c3e0

SHA1
a7164286ffbb98b951036da9ba79162be131a7bb

SHA256
bda6fb1492b9e740e55ae74c2b2172bc5b15d81d9077c556cf894fbfaaa6b1cf

SHA512
7cb82e4845acff66db7fece7c4e41fa355e25323ad985e7aef2fd3ef80d3a81deb20e7622ff40d4fddac22fbdcbb55d98eec025bfaadab85080142370d4dd558

Download Submit
\Windows\system\rundll32.exe
Filesize
73KB

MD5
4ed12e26b129b30b7580f12f397723ca

SHA1
25de021d95cb944ba9261545cd2e9fa9c8c26265

SHA256
6253bf5c2e1639e55ce00869d838738df47f39791a0d62a583e9ba6556937086

SHA512
b83b6059b908ec58ad2103fe2473c5c0669eabcdb82f4442c8aab85a5ff8547f675007d22b49ecd0787a45c8a4ded7a1f7e9544e5c8e8be18770eb5ad368b0cd

Download Submit
memory/2860-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2988-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2988-17-0x0000000001BC0000-0x0000000001BD6000-memory.dmp

Filesize
88KB

Download
memory/2988-18-0x0000000001BC0000-0x0000000001BD6000-memory.dmp

Filesize
88KB

Download
memory/2988-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads