aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f

General

Target

aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
Size

73KB
MD5

1d85298b27b247b97fc0eb27468394d2
SHA1

d28b5e6e027f6c2ff8b4b2f628eaa4926a1c8525
SHA256

aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f
SHA512

0e0a1ed4e61f6adcdc339034dfc1185ba015cf67a23d0e0b8b2a220d3feaec864700c098dfb4187f46b6ad2f81a601a4e9f41b423871b841adbecf9074e7fcae
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOq:RshfSWHHNvoLqNwDDGw02eQmh0HjWOq

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2688	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.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	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.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	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
File created	C:\Windows\SysWOW64\¢«.exe	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
File created	C:\Windows\system\rundll32.exe	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715800675"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715800675"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2688	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
2688	rundll32.exe
2688	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2688	1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe	28
PID 1688 wrote to memory of 2688	1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe	28
PID 1688 wrote to memory of 2688	1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe	28
PID 1688 wrote to memory of 2688	1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe	28
PID 1688 wrote to memory of 2688	1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe	28
PID 1688 wrote to memory of 2688	1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe	28
PID 1688 wrote to memory of 2688	1688	aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe	28

C:\Users\Admin\AppData\Local\Temp\aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.exe
"C:\Users\Admin\AppData\Local\Temp\aabb65673b56fe7d600fa2472b9ebbe64ed22c718e66c3d3bbcc4e4660fbe36f.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:1688
- 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:2688

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
cd85050138fe20ce7f39bd085094ee5f

SHA1
571a5310959972816751c149f53fa4a8e24b94a7

SHA256
7b67e3cbc9bc2e92655c2e4aa48448833c16126a90bd9d0867de0479bbfd83fa

SHA512
1e2b6dd9ccac986a284ad89d1aa1f178a2c9fc75cb590b0d33d5f1a80f6047f6cd96613ebf4004156774bc8625c048f9b4110ce0bf3926d488a50d48e11d14ed

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
472c43f9036a167d98a1e3003b4d276c

SHA1
8ae1432e527abb83c956af5a79202bc22120fe65

SHA256
d1694c847e4e7fb4d8429288db8f0a23e1596cefac630762764d4492fa1ab8a1

SHA512
f574fb0186f494916d430dbb441c62bfd8c2f9c5916315f4f882e76d4bac12bea07fb3f29546b7a3b52d1b4a6800f18d05195ba1f900c912ba0301190cb64998

Download Submit
memory/1688-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1688-12-0x00000000002C0000-0x00000000002D6000-memory.dmp

Filesize
88KB

Download
memory/1688-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1688-21-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2688-18-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads