131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c

General

Target

131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Size

82KB
MD5

cb3e9ac089012bb811edc08abce1e35f
SHA1

c2f414df59586e332fd17f6f7e54cdf4e03aad6b
SHA256

131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c
SHA512

d65a49bc6bd7a92df1628d061c86433b76344000cbd1e511a02e0570de19cb7f824d94be10ea82b6a1ef0666c1a983bf1180e98d9a5443e062e83e767b170c22
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO5a6M:GhfxHNIreQm+HiKa6M

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1920	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.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	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.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\notepad¢¬.exe	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
File created	C:\Windows\SysWOW64\¢«.exe	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
File created	C:\Windows\system\rundll32.exe	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe

Modifies registry class 15 IoCs

description	ioc	Process
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	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.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\MSipv	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718307779"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718307779"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1920	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
1920	rundll32.exe
1920	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 1920	2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe	28
PID 2440 wrote to memory of 1920	2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe	28
PID 2440 wrote to memory of 1920	2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe	28
PID 2440 wrote to memory of 1920	2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe	28
PID 2440 wrote to memory of 1920	2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe	28
PID 2440 wrote to memory of 1920	2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe	28
PID 2440 wrote to memory of 1920	2440	131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe	28

C:\Users\Admin\AppData\Local\Temp\131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
"C:\Users\Admin\AppData\Local\Temp\131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.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:2440
- 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:1920

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
81KB

MD5
cb2b8202fb068311316c694bf1060bb5

SHA1
e27e6338b295f6ccbb05a4f5f7144a4fe41c8906

SHA256
0e8dd8c3f0ed61352d1b5d800391dfad2c0ff555d49613e27c79e3988ce46d1a

SHA512
965dc94dd07091dd6eca6381859ea89f62030ecb6a834bfc138ef162b4ab215d279acdb682c2c59b29d80cbcbf70d2a4b22599e9d7a78644cc11e16ece85ae49

Download Submit
\Windows\system\rundll32.exe

Filesize
80KB

MD5
9471125e00413027be8edf37f8ae6555

SHA1
6be7a6a0d7cadda524e13d1707033fe92244915f

SHA256
26870f212355f1f1fe9f2c65d9b9bf455f21bb828dd1b4048ca6dcc485e69dd1

SHA512
ebdc92e1dd3518bd74a95ec6f5b48cdab8920cae3441dbb293329747a80943ba4caf08bfb011dde3acf9500f84b40889189db8dabfbe4c00b924dc962842a637

Download Submit
memory/2440-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2440-18-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2440-17-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2440-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2440-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads