55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19

General

Target

55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Size

78KB
MD5

b5be93e3a3b753d34a15d2a524a0c6d4
SHA1

55587f45928cb57da0b60ceb91b57e80b0df0d2a
SHA256

55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19
SHA512

45914a19ca75840367ca078bfaa7e518edb58a166f402e91eb00725871c8420d6227f3900c909dd059a34ee116ef728e4b8f4f6e8e3ff346f0637b71485a804d
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOMpy:GhfxHNIreQm+HiJpy

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2636	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.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	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.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\¢«.exe	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
File created	C:\Windows\system\rundll32.exe	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697289517"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697289517"	rundll32.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

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2636	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
2636	rundll32.exe
2636	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2636	2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe	29
PID 2092 wrote to memory of 2636	2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe	29
PID 2092 wrote to memory of 2636	2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe	29
PID 2092 wrote to memory of 2636	2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe	29
PID 2092 wrote to memory of 2636	2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe	29
PID 2092 wrote to memory of 2636	2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe	29
PID 2092 wrote to memory of 2636	2092	55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe	29

C:\Users\Admin\AppData\Local\Temp\55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.exe
"C:\Users\Admin\AppData\Local\Temp\55749c84a7fa0d7faee8a4bbd4cf19778fd0fd6096729bae15286e169c714e19.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:2092
- 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:2636

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
76KB

MD5
94646bbfcaa827249adeb9bfb7638ee6

SHA1
ea61661b40b4161c399914b2f55e1176158457fd

SHA256
82f222b37e7591b193aa2825f452f53951a64e9eabd11ed6f1c3b3c07e667936

SHA512
523216c91654d57727e6bb8f093d15726b3648857474527fcc925357f3978ab21ee2447179dbd1c35f0112215d7ad656920242aa9962ccee3f460fc90e79662d

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

Filesize
82KB

MD5
9f82b4dbb7bbccca71415d55cb6369e0

SHA1
44b610f817754ad6d46d56ab4d96f4f3fd156bf9

SHA256
f65147a705f59dee7745bf296e48f034af261ef2f2843ee02009884e7f7859d5

SHA512
9d891c5a1e49cbd8a29ba2f5917d77e3e3d1b2c694040524a32313e9f7c1a53bfc8588dc112cd73865e772f76d6fad51588a469b70584d010bbd258aa7886b09

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

Filesize
82KB

MD5
9f82b4dbb7bbccca71415d55cb6369e0

SHA1
44b610f817754ad6d46d56ab4d96f4f3fd156bf9

SHA256
f65147a705f59dee7745bf296e48f034af261ef2f2843ee02009884e7f7859d5

SHA512
9d891c5a1e49cbd8a29ba2f5917d77e3e3d1b2c694040524a32313e9f7c1a53bfc8588dc112cd73865e772f76d6fad51588a469b70584d010bbd258aa7886b09

Download Submit
\Windows\system\rundll32.exe

Filesize
82KB

MD5
9f82b4dbb7bbccca71415d55cb6369e0

SHA1
44b610f817754ad6d46d56ab4d96f4f3fd156bf9

SHA256
f65147a705f59dee7745bf296e48f034af261ef2f2843ee02009884e7f7859d5

SHA512
9d891c5a1e49cbd8a29ba2f5917d77e3e3d1b2c694040524a32313e9f7c1a53bfc8588dc112cd73865e772f76d6fad51588a469b70584d010bbd258aa7886b09

Download Submit
\Windows\system\rundll32.exe

Filesize
82KB

MD5
9f82b4dbb7bbccca71415d55cb6369e0

SHA1
44b610f817754ad6d46d56ab4d96f4f3fd156bf9

SHA256
f65147a705f59dee7745bf296e48f034af261ef2f2843ee02009884e7f7859d5

SHA512
9d891c5a1e49cbd8a29ba2f5917d77e3e3d1b2c694040524a32313e9f7c1a53bfc8588dc112cd73865e772f76d6fad51588a469b70584d010bbd258aa7886b09

Download Submit
memory/2092-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2092-12-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2092-17-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2092-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2092-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2636-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2636-23-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads