d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010

General

Target

d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
Size

76KB
MD5

a5ab627c3553105ae4ff04c4f2b3a993
SHA1

491f4efed725e3f51543e7a2f4765472d76e3cc4
SHA256

d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010
SHA512

6c10fb1c9988fff9ab72686555880f0ab46c4ce843bc5f276f2c0cdf051631736700aaa65f14d6f84d48685376fa4f1ba73b3c8b63c33dce244fdc73da02189e
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOXCS:GhfxHNIreQm+HiQCS

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1592	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.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	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	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
File created	C:\Windows\SysWOW64\¢«.exe	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
File opened for modification	C:\Windows\system\rundll32.exe	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1728115343"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1728115343"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.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
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	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1592	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
1592	rundll32.exe
1592	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 1592	1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe	30
PID 1792 wrote to memory of 1592	1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe	30
PID 1792 wrote to memory of 1592	1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe	30
PID 1792 wrote to memory of 1592	1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe	30
PID 1792 wrote to memory of 1592	1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe	30
PID 1792 wrote to memory of 1592	1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe	30
PID 1792 wrote to memory of 1592	1792	d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe	30

C:\Users\Admin\AppData\Local\Temp\d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe
"C:\Users\Admin\AppData\Local\Temp\d4478f3204d94491fd7046a0d6a2cd81dbc508764cc1ae876cd390ebc3fd3010.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:1592

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
83KB

MD5
8f69745727287fc236202adff0b3857b

SHA1
9c4dbcd0a1cb87ab5ae1e0a49f386daa17df78cc

SHA256
c3fa564397815dc00a61d19d58a2c00d5a1882d7baeeb36bdbf53e8e90fd3713

SHA512
dd2cfeb61dac0fce36615dd68a59fa249f9b99aa1c6af440b63cc9abc03341ecd9c74c40a8caa62585a0ceff771015a26de619f9f7e3d5b361b8b37ba8363cd7

Download Submit
\Windows\system\rundll32.exe

Filesize
74KB

MD5
7bc1870219724bac2d6ddfb5dd9f5107

SHA1
614dbcf2e1c981dba158a8313ec63d95eb990b38

SHA256
3383f75ea3ade1062eab5967b0afebaa1ffb7ba00fefa0571558495a0e6d4dd1

SHA512
f0709b6c494d3f1140fb4a774c8c4cad7a57267fe1cf5dfbf6965639a59428d61c7c60129006e9336fa01bca9326801ceec941fdf822d2eebc991464b7dbbfbf

Download Submit
memory/1592-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1592-23-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1792-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1792-12-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/1792-17-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/1792-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1792-22-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads