d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d

General

Target

d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
Size

75KB
MD5

ea6b31917503e611c8483b58fb7b2725
SHA1

26c0966d99b7fd5094e59e4d779116d8d490752a
SHA256

d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d
SHA512

807d32587877ff01ae19f964bb03bae8231db995ff285f3fdd124f43db45414cf1d7ae7d5d0e1a20eb7700c5cfe51276bd660af197fe6624153211752a68532d
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOfvx:GhfxHNIreQm+Hisvx

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3396	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	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.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	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
File created	C:\Windows\SysWOW64\¢«.exe	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
File created	C:\Windows\system\rundll32.exe	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715959269"	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
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715959269"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	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\" %*"	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3396	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
3396	rundll32.exe
3396	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 3396	316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe	82
PID 316 wrote to memory of 3396	316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe	82
PID 316 wrote to memory of 3396	316	d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe	82

C:\Users\Admin\AppData\Local\Temp\d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.exe
"C:\Users\Admin\AppData\Local\Temp\d97101379f4817eba0ae1bb7127cfd7fca3c0d8d1d666b494b67b844d3ee685d.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:316
- 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:3396

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
85KB

MD5
06604698d7249638d0791c4bc6d828ce

SHA1
9c5857e81a121a04f814ccdeb1316f5dd2e1f5fc

SHA256
cd3e0d03f2b522296fcffbbf9afed1b12f6860ae4390e34a0ab9724aa8374cf4

SHA512
bc19125a1b5b8a8643f9c95c67f9944530c24499a454d0ed0606359c2b6cc0017600047f15d623afa8daaab1b806971f3c1bae0fcbb53ccca9cc047ab201b376

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

Filesize
79KB

MD5
3d4a949b04f8005efa0f04f3b91f53cf

SHA1
215685b174de2cfbbee57c09d3d5955b92701d35

SHA256
8eac8ee363f79399084301802b1ed239f5e5eb8c65eebfdade003eb8854d536c

SHA512
073a48010c950e683de38509ea6887ea34962111f865b46d77ef5b8bcbe1390e1c919b98929bd620ac98634b16686243cf6fcd9963116d36e0aa4692ad8cd678

Download Submit
memory/316-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/316-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads