99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0

General

Target

99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
Size

81KB
MD5

2db75a8265b2780013c32aa1d2c9d5b2
SHA1

fe6ab18ea9159a167969f1abcba3d546a470d822
SHA256

99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0
SHA512

297920e5a514f3d0972fd4d9e36de1b88a9b37d98966df32891cfc5be55d35674bd1338274a2633074cd823ff5c130db900d5ba4a8287d82f9026c78e973f4f9
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOn5PakC:GhfxHNIreQm+HiM5PakC

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2848	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.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	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.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 opened for modification	C:\Windows\SysWOW64\¢«.exe	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
File created	C:\Windows\SysWOW64\¢«.exe	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
File created	C:\Windows\system\rundll32.exe	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	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
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1714044101"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1714044101"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2848	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
2848	rundll32.exe
2848	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2848	2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe	28
PID 2512 wrote to memory of 2848	2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe	28
PID 2512 wrote to memory of 2848	2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe	28
PID 2512 wrote to memory of 2848	2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe	28
PID 2512 wrote to memory of 2848	2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe	28
PID 2512 wrote to memory of 2848	2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe	28
PID 2512 wrote to memory of 2848	2512	99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe	28

C:\Users\Admin\AppData\Local\Temp\99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.exe
"C:\Users\Admin\AppData\Local\Temp\99e7205e41d6f191e6ce862ad5e398b60f4c4aaeb7e2f70320e8cb6ab71cafb0.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:2512
- 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:2848

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
73KB

MD5
d2c0dd76e05e3ed2106089468b2d65a2

SHA1
642967312de7e370e19515651b6cb460bec6e87e

SHA256
13cd0eb0d1b9065937173ff5e79f8b5088e0690d65e60d3782a491366697d2e3

SHA512
8e9c96fe25347aa869797e0ceba8adf0d74ad34a76a24e4fb9eb23dfdfe521b130802e3b2c8ee303f365b2bce51e70ff7bd211645c0c20b79a7ceba5d0dfc69a

Download Submit
\Windows\system\rundll32.exe

Filesize
82KB

MD5
80b00a23f36d064ce13c7b09b7aa7564

SHA1
b062df1b02cf52d5a522b308bcf5d6e207946ddd

SHA256
739c00e18e7afdd173fcd7732b015ef6abeff83ac1231f5d24d7bc50218aa804

SHA512
c93f002e6f547fb873f99fd65ec1a322d94aa0ac9608e5f9b673f35e0ca815a018a7fe3066a7fcb5e386a318fa9e65a76035ad6879d8d65af47e1d78f15971b5

Download Submit
memory/2512-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2512-16-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/2512-19-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/2512-22-0x00000000002E0000-0x00000000002E2000-memory.dmp

Filesize
8KB

Download
memory/2512-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2848-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads