5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45

General

Target

5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Size

82KB
MD5

fe2bd44489ea2b5ef3b38f61ddae0653
SHA1

d7ab2e89d692b14f83bb4fb528916e60451a05fb
SHA256

5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45
SHA512

048bccda9a98134c616d7c437d84dbb3dbf50752e03e47f03e4f5c27437d6f4e138d8f105391d73bd88285937151012a511ce43154d97d95334f07b434162057
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOAo4BENO:GhfxHNIreQm+HiNo4BENO

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3324	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	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.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\¢«.exe	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
File created	C:\Windows\system\rundll32.exe	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1695004147"	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 (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1695004147"	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\" %*"	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3324	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
3324	rundll32.exe
3324	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3772 wrote to memory of 3324	3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe	81
PID 3772 wrote to memory of 3324	3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe	81
PID 3772 wrote to memory of 3324	3772	5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe	81

C:\Users\Admin\AppData\Local\Temp\5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.exe
"C:\Users\Admin\AppData\Local\Temp\5c057e9597dddaf151c2784acf7158c9c18cbf11e663f7156976fcdc601c7b45.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:3772
- 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:3324

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
4ef8749251be1d33b5d6004fd3820bd3

SHA1
f14ffacf191cb87d7dda5907e793d32661edb1af

SHA256
7b6977e43931b99263021dcf25c2e7f5b598c73f4deb8a540b2f1b27adb74542

SHA512
1154ddb4a1bf06937eb795dfa644355c3ffded433ffdb66f1ad89c7c53fa3dccda1434781e73bcdfca2191fa4e3f85c8dc5b43cbd3d8c7d54f1623da394cb0cb

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

Filesize
80KB

MD5
7139b392a3b4f54f6df756fb0899dc30

SHA1
d74ec470f60bd0fad1f72b2cd612107be70041c3

SHA256
f93c570c0b42da40d79382ddb5b9f47ac462f7d1eaeba67746b1650f9fd1895b

SHA512
d394b9541b2713a6efec8ad81f6799fb3bee013203efa7d315e1626ceaea8c965f463a381b741cac002e4fcf7e3e13dabf3e684b4923194fd89f7dd281d52a07

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

Filesize
80KB

MD5
7139b392a3b4f54f6df756fb0899dc30

SHA1
d74ec470f60bd0fad1f72b2cd612107be70041c3

SHA256
f93c570c0b42da40d79382ddb5b9f47ac462f7d1eaeba67746b1650f9fd1895b

SHA512
d394b9541b2713a6efec8ad81f6799fb3bee013203efa7d315e1626ceaea8c965f463a381b741cac002e4fcf7e3e13dabf3e684b4923194fd89f7dd281d52a07

Download Submit
memory/3324-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3772-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3772-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads