184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583

General

Target

184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Size

78KB
MD5

b21f8f29ff26e4001f73018a1b5ca8c5
SHA1

d132981ba441100fde37c013703f255ff4ce08d6
SHA256

184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583
SHA512

7651f1ee130f2a19304cd1f2cbf69485b2dbc1934c982d0650a5bf8a35f2e77f873e5e0724a65fb8195d4f887c337e499f17febecccbfdb83ffe0f01e2b10438
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOAE:RshfSWHHNvoLqNwDDGw02eQmh0HjWObP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3068	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
File created	C:\Windows\SysWOW64\¢«.exe	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
File created	C:\Windows\system\rundll32.exe	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715887071"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715887071"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.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"	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3068	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
3068	rundll32.exe
3068	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1920 wrote to memory of 3068	1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe	28
PID 1920 wrote to memory of 3068	1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe	28
PID 1920 wrote to memory of 3068	1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe	28
PID 1920 wrote to memory of 3068	1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe	28
PID 1920 wrote to memory of 3068	1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe	28
PID 1920 wrote to memory of 3068	1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe	28
PID 1920 wrote to memory of 3068	1920	184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe	28

C:\Users\Admin\AppData\Local\Temp\184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.exe
"C:\Users\Admin\AppData\Local\Temp\184dae43e2034cae6419c7357263ff78e6b54b5b2f248eac639a9a9786781583.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:1920
- 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:3068

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
83KB

MD5
3dac4dfd379a65332b91cf22ca2edcf5

SHA1
2458926ccf896d01da184ff3ca502e3e53c0f723

SHA256
d2ac193180ba6f638fd6fb7e16377864d2b1120ec2f9865840acc1a4f56d5cee

SHA512
55f8eb0e061997cdf42d6200846dff6254cc7eba3b82f0213ec8212b1f4651a3dd43a45afb3f40d6d7e9cf94b4d071975254c0667a42bbe7d164a364604aea8a

Download Submit
\Windows\system\rundll32.exe

Filesize
75KB

MD5
c2d6d2ecebd31fc1d4dbb18d5a9fd3a3

SHA1
6778bf662d5b29a31ef191ef0e5df82aa6709fd6

SHA256
b0bc20b88dd74397fa80cd1177c1f6d364e5c9624ad19855f06fb5f71dace1db

SHA512
6e80f015b5a55cb250cf9a9a868380a03f5baf706ebf43e316324f082113e8e43dac2d66da04ce1573875448eeac4eff3b1736b3b130a8e013da619ad88fb4ef

Download Submit
memory/1920-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1920-13-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/1920-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1920-21-0x00000000002F0000-0x00000000002F2000-memory.dmp

Filesize
8KB

Download
memory/3068-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads