dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb

General

Target

dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
Size

75KB
MD5

8021a741998f62d03f8014e654d97ec3
SHA1

336edfef185a7f02136de3a195406cc82bbb44e2
SHA256

dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb
SHA512

76a05642924f5eddff42148b9e4aff129c286057fa86268dc451fa82ec7453d576656533db4543a5e1b89fd44e7060d795c0f51ace830c572de3ce91c68138bd
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO:RshfSWHHNvoLqNwDDGw02eQmh0HjWO

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2152	rundll32.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	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.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\notepad¢¬.exe	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
File created	C:\Windows\SysWOW64\¢«.exe	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
File created	C:\Windows\system\rundll32.exe	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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.exe %1"	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1693405928"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1693405928"	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¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2152	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
2152	rundll32.exe
2152	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4580 wrote to memory of 2152	4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe	82
PID 4580 wrote to memory of 2152	4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe	82
PID 4580 wrote to memory of 2152	4580	dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe	82

C:\Users\Admin\AppData\Local\Temp\dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.exe
"C:\Users\Admin\AppData\Local\Temp\dcdc9d5ca48b187e43579970d081041297b8fa202a4420d613102b150c6d4edb.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:4580
- 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:2152

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
c2ba8b420537407571618d9f84ee1483

SHA1
5907e1a56267637c15f258616f60be256be7bb6f

SHA256
b9ffb596c9dc982771d49388dfe6454f68d0b432ec5529f189cb58749e0b7627

SHA512
dde6a603ea2525aa7feb77cff99383a4a318b3320ffae4bc42ae5faa5c005dbf98e1360a8a90a987ac3afb6fdc0945eed8010078862963904a092fa81313befe

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

Filesize
81KB

MD5
b6283d623ed0fd976163010478bc958a

SHA1
15fbed2092db70be738a4f92ca9e7f845df0d28f

SHA256
4cf05b547bcd3c924ccd22eb3ee67d739b02c70da64233d2abe0e0e76c8a72a7

SHA512
6900d231a93bd9eca7e0a8d6054c2ec5139b7910b3a59ba94b22ab836adbe84583e273cb1c0715594265864295d043f8880dcccb2cdb11fe20d6f9204e08fd24

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

Filesize
81KB

MD5
b6283d623ed0fd976163010478bc958a

SHA1
15fbed2092db70be738a4f92ca9e7f845df0d28f

SHA256
4cf05b547bcd3c924ccd22eb3ee67d739b02c70da64233d2abe0e0e76c8a72a7

SHA512
6900d231a93bd9eca7e0a8d6054c2ec5139b7910b3a59ba94b22ab836adbe84583e273cb1c0715594265864295d043f8880dcccb2cdb11fe20d6f9204e08fd24

Download Submit
memory/2152-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4580-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4580-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads