b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb

General

Target

b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
Size

82KB
MD5

95cff6a83b1881f8e64fd1968dbb0329
SHA1

651ee0d92a2c845faf23b9419a8022cefdaa4e0d
SHA256

b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb
SHA512

c499b101165efd25b25649a7e048e614e87db4f7ea37b92d2691087edb62f4e6e2fb74e204eb77a19d1f7a5c4e60e087e60bcecf373c0adb0b9a47c080fe18cf
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOKr:RshfSWHHNvoLqNwDDGw02eQmh0HjWOKr

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2532	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	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.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	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
File created	C:\Windows\SysWOW64\¢«.exe	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
File created	C:\Windows\system\rundll32.exe	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697427627"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.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\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697427627"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2532	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
2532	rundll32.exe
2532	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2532	2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe	86
PID 2368 wrote to memory of 2532	2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe	86
PID 2368 wrote to memory of 2532	2368	b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe	86

C:\Users\Admin\AppData\Local\Temp\b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.exe
"C:\Users\Admin\AppData\Local\Temp\b9e68e02f9a98106c51ef36ad10029e4dc8fceaebd5b4f903e1a3ad7fd0a27eb.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:2368
- 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:2532

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
84KB

MD5
5b67fedac7b6c9c9359a84b112d51003

SHA1
c74073b45c270ddf02ff271dbfccc18daca4ffd0

SHA256
e86b80afea74ae315c6ec45b665c1a2f9c1ef223f126d1bbbc14c3d6f7fbd9b6

SHA512
e444aa48333a07cf2491bed28e02144e5bc5740ac0e9a2099e00a2a1c800a70839187c7b486e4d1d5fa6fddacab2a5fc8cd43f311a2e837b84795e62e7d39236

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

Filesize
77KB

MD5
b2814c7a2f9d8e1bde3214987e753e8a

SHA1
b16d7512e6fdb03f853b787965d4a274f6a6ee1a

SHA256
cc642636c61881b1f2331dcfa6d74e28d6abe8e39298151a1c0bb6ac707a0686

SHA512
b9f408408134a3cefa0e270d174e0c930ea33f5cdc1770c8d1677c647f75282b97c478d2cea068547a959a1dd5a9710b0cd85c731622877df22265ae6fbea42b

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

Filesize
77KB

MD5
b2814c7a2f9d8e1bde3214987e753e8a

SHA1
b16d7512e6fdb03f853b787965d4a274f6a6ee1a

SHA256
cc642636c61881b1f2331dcfa6d74e28d6abe8e39298151a1c0bb6ac707a0686

SHA512
b9f408408134a3cefa0e270d174e0c930ea33f5cdc1770c8d1677c647f75282b97c478d2cea068547a959a1dd5a9710b0cd85c731622877df22265ae6fbea42b

Download Submit
memory/2368-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2368-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2532-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads