65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1

General

Target

65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Size

75KB
MD5

902d6e2d39c41fa861d0e8de160e3555
SHA1

f3f1f8b0e0f85b4dbb8bac4564414d855fcc0e68
SHA256

65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1
SHA512

62fc46bca9c42a9812c3cfb5804364349f90700a0b4aee6d85581b90ab276e08740b830669c3a034adcb6768c24705cdd3089d97c7564ee7a30c8774d640ad54
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOHx:RshfSWHHNvoLqNwDDGw02eQmh0HjWOHx

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2844	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
File created	C:\Windows\SysWOW64\¢«.exe	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
File created	C:\Windows\system\rundll32.exe	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	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"	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716511683"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716511683"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2844	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
2844	rundll32.exe
2844	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2844	2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe	28
PID 2368 wrote to memory of 2844	2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe	28
PID 2368 wrote to memory of 2844	2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe	28
PID 2368 wrote to memory of 2844	2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe	28
PID 2368 wrote to memory of 2844	2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe	28
PID 2368 wrote to memory of 2844	2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe	28
PID 2368 wrote to memory of 2844	2368	65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe	28

C:\Users\Admin\AppData\Local\Temp\65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.exe
"C:\Users\Admin\AppData\Local\Temp\65c90480578b19bd88ec724bca5bb8f5318ccc9bfd2f67c4120817dc617145c1.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: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:2844

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
8d40e8b9c7138db956c1b4424f5e308c

SHA1
ead1b8dada378c14e6205bb55eed2ae14e7b5ac4

SHA256
f3ed65a10e343e40532ad0b39c47181fa4643fc1a139803778e7be587ee70d61

SHA512
c1c43f27535d1e016e5a91f4629ad6cffa58fad6dc43e57d90891dec021bb22160d49e06d5c439746c220ec3e33d738ab3eb557301cd04c7dedf15da9ec09e2f

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
6a719219bc4df717ba89cac0d0cdab21

SHA1
d299ae148d661f831bac741bcc648d192a1120f8

SHA256
a6db7fc957b5d94d30a08afb14dffe599df7f1f22c906da624ca1c4e0d9aabbc

SHA512
de872a3e7529b6234b2873bcea9fd877b54d29a4e6510e71118b06e44a515f0f7e515f75d810b6142e447a4a508f140cd84685404e862e38160c75551d84da0e

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

Filesize
86KB

Download
memory/2368-12-0x00000000003B0000-0x00000000003C6000-memory.dmp

Filesize
88KB

Download
memory/2368-17-0x00000000003B0000-0x00000000003C6000-memory.dmp

Filesize
88KB

Download
memory/2368-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2368-22-0x00000000003B0000-0x00000000003C6000-memory.dmp

Filesize
88KB

Download
memory/2844-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads