979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491

General

Target

979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
Size

75KB
MD5

1cc619082d82b8d07e25d291c764a7a3
SHA1

d532fb46fd430be43a2112b489c1460e5deb9347
SHA256

979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491
SHA512

c761894b8b1fa1aafc6e38251885ebfb2099fbcd4e481d907bb4d674ebf519f8cfeaec91f43fd0e6f1d1c9540abb3e0b3341f6c24dd58e5ef152cb6e99bb4df7
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOSpu:GhfxHNIreQm+Hi9pu

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
184	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	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.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	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
File created	C:\Windows\SysWOW64\¢«.exe	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
File created	C:\Windows\system\rundll32.exe	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.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 (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1720170331"	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	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1720170331"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
184	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
184	rundll32.exe
184	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 184	640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe	83
PID 640 wrote to memory of 184	640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe	83
PID 640 wrote to memory of 184	640	979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe	83

C:\Users\Admin\AppData\Local\Temp\979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.exe
"C:\Users\Admin\AppData\Local\Temp\979ef03fe7973016449f1b8b4ece9346338dee8bb045feb68e202d7dbaeb4491.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:640
- 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:184

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
30386ea31bf1095a8a6dece08173400e

SHA1
f068cb1fa665afbc20e840cfe85a6aa139c8c666

SHA256
bf0370467069d5bcc7c1cd6cb40f9c4591a5f125d7949d903ef6ed7036ea2cc0

SHA512
f6c755e7f9560a1c6852be9f4873ca71ebc09a8cb1c6fcddc1f1568eece985392d9cc32b257f3b4cbb60adc36ea9fcd44bb81c3cc4995e4acf7ff95c4a6a512d

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

Filesize
75KB

MD5
ad3809427c075100df05df96f6cf5705

SHA1
ea81006a6ad53d76ebdb0f1a913b85deb0b39a82

SHA256
1cd5f0d5e5369816848bdda137869c9179b732879bf72852d2a6bdb78423ae44

SHA512
aaadc67ee660f91d8e8b6f1ede6959ff93f808277f273a992e3fd0de83a34ac1d7710a17bd9b8288e97b35b9cbcb2a700eaad0aa6ad3e1187a43fa1490484ba2

Download Submit
memory/640-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/640-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads