1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308

General

Target

1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
Size

75KB
MD5

265cbf90e3c4e99f553bdf0ad503abbd
SHA1

ea6e9d47f57f5fc29f2caf9b8d0d517a52d634b5
SHA256

1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308
SHA512

14f6243c09b38ae22ed7c7339ea0e841314603bed647b959e3639b564d9496a5ac7994e793908a18bda1b01cb9bbf3b8b96a222ef0c447057bcc2d0c460c919b
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOzw2q:GhfxHNIreQm+Hi4w2q

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

rundll32.exe

pid process

1056 rundll32.exe

pid	process
1056	rundll32.exe

Loads dropped DLL 2 IoCs

Processes:

1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

pid	process
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exerundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.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

Processes:

1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
File created	C:\Windows\SysWOW64\¢«.exe	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

Drops file in Windows directory 2 IoCs

Processes:

1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

description	ioc	process
File opened for modification	C:\Windows\system\rundll32.exe	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
File created	C:\Windows\system\rundll32.exe	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

Modifies registry class 15 IoCs

Processes:

rundll32.exe1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716319270"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716319270"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

pid	process
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundll32.exe

pid process

1056 rundll32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exerundll32.exe

pid process

2116 1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
1056 rundll32.exe
1056 rundll32.exe

pid	process
1056	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe

description	pid	process	target process
PID 2116 wrote to memory of 1056	2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe	rundll32.exe
PID 2116 wrote to memory of 1056	2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe	rundll32.exe
PID 2116 wrote to memory of 1056	2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe	rundll32.exe
PID 2116 wrote to memory of 1056	2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe	rundll32.exe
PID 2116 wrote to memory of 1056	2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe	rundll32.exe
PID 2116 wrote to memory of 1056	2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe	rundll32.exe
PID 2116 wrote to memory of 1056	2116	1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.exe
"C:\Users\Admin\AppData\Local\Temp\1cd8e2705f493455224e479215cc417a668553ae31228bf08b714088a6f00308.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:2116

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:1056

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
80KB

MD5
25f275c18394d0cdf4106c90392fa553

SHA1
af8a77de4062a6ad642fdebd5401725708e619d7

SHA256
8d790ee691c4be59ad9028b150b4b74d5faf138791fca98ed7cf9e9004e67828

SHA512
00eef160cbf2b4cfc02f125b2c1323d9b32e8b18a2d47e3867ef12a2013bd68c23467ce697c5534c96715fa050fe86a466e4ac724214beebf9a283019a9ab5ce

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
8a066d340585c9408807a3cb10951ee8

SHA1
8059e5c5635b1c265b6aefd5d02347ea31ad6587

SHA256
b177ab852b3518bc4678de750ba92b6cbd01fd513be13ae5a1d5229d12263e17

SHA512
c921aea76616d4454feca7186c7b7d3920aa201b61f1f3e2beb6f8324a071101e4b1a0bea94736577f71afbf2b3cb2bb2db44f22646b7858574d34311247b9b5

Download Submit
memory/1056-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2116-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2116-16-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/2116-17-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/2116-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2116-22-0x00000000002E0000-0x00000000002E2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads