a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc

General

Target

a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Size

76KB
MD5

fda80c21e11b3639182d207f51e74c38
SHA1

5ef5df3f6b039b654034c6082d36fdd83fdca9b6
SHA256

a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc
SHA512

c6c24419f7e8305601a8830d41cf35e9052dc9a8d2ea3a09319760f709302d5e41809a24ebfae91f5ab809479231e2e3bf4b805d0827a43ce22f35f248cf37d1
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOGS:GhfxHNIreQm+HipS

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1276	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.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	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.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	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
File created	C:\Windows\SysWOW64\¢«.exe	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
File created	C:\Windows\system\rundll32.exe	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716875721"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716875721"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1276	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
1276	rundll32.exe
1276	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 1276	1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe	28
PID 1848 wrote to memory of 1276	1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe	28
PID 1848 wrote to memory of 1276	1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe	28
PID 1848 wrote to memory of 1276	1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe	28
PID 1848 wrote to memory of 1276	1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe	28
PID 1848 wrote to memory of 1276	1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe	28
PID 1848 wrote to memory of 1276	1848	a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe	28

C:\Users\Admin\AppData\Local\Temp\a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.exe
"C:\Users\Admin\AppData\Local\Temp\a0c483774e75122301cdd679de437fb7fc6c96c08e4e2f0ef627ff98c98388cc.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:1848
- 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:1276

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
74KB

MD5
2fd187660efa5a899e71da131bef5f44

SHA1
5115946bc32537bd16d3b77dc51161f41f00e4d0

SHA256
8785e207121b7f8b670ccd1c556f49a9e13fa48f26d8b174e6b86e2e0fb1312b

SHA512
64dde6ab87213b8e14b458c2fd17a35b6742b117c5bb4d10dab5d61dabb79aefb992056ea2a1ac1c42230362889a15976dc8398096b94b265a407e00b9e8515d

Download Submit
\Windows\system\rundll32.exe

Filesize
74KB

MD5
32ff445c222b46d98f6ada9020f636b7

SHA1
255d3a25de52c7a1e83937515f4fda65506b3b6e

SHA256
966d625dacaf93834301f13010743f17415851a00c6a9ec509361fda74020b10

SHA512
d4a885afdc141f2ef0a510d0308920898786ebfd636a419cc6b16bef1449dcbc68780aa12711e06a0d1195503d036e0cc9335104eca263df494b06cf65b2e20e

Download Submit
memory/1276-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1848-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1848-17-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download
memory/1848-15-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download
memory/1848-22-0x0000000000270000-0x0000000000272000-memory.dmp

Filesize
8KB

Download
memory/1848-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads