98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd

General

Target

98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Size

77KB
MD5

0cf58602659903e8ee362ff25867ded8
SHA1

400d1b5a2c4bec734fcdd2ba4739b2e7588fa405
SHA256

98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd
SHA512

0081de69c7a92ec95b2ebbc2eb53ea7994654465fe74822a8d5a5f9d59000f6363a39f8e98294cc9e003b36c76c83753201468de73bec75a2ce93b9338e337de
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOkVc7kG:GhfxHNIreQm+HivVc7kG

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1912	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	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.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	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
File created	C:\Windows\SysWOW64\¢«.exe	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
File created	C:\Windows\system\rundll32.exe	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe

Modifies registry class 15 IoCs

description	ioc	Process
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\MSipv	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1693269934"	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\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1693269934"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1912	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
1912	rundll32.exe
1912	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 1912	5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe	83
PID 5100 wrote to memory of 1912	5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe	83
PID 5100 wrote to memory of 1912	5100	98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe	83

C:\Users\Admin\AppData\Local\Temp\98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.exe
"C:\Users\Admin\AppData\Local\Temp\98a25126c61c4ff98680f65df8e9bcc270407c8a2cd2774006f8ada6840b22cd.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:5100
- 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:1912

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
85KB

MD5
7c73b0891f9ce3a1d8645999df694ea2

SHA1
449879b4b6dfc2377fab91bdec084f7d08661282

SHA256
5b22ac13d85073e5c3c700cc6999eaf872049910fcecd4438884a7adfbf67b95

SHA512
e6a31b8d6ee4822dde1368866c62d8f0baa3f2d2e3f4006c5986013d0d6667d5697764a499959557529985f9b2b8f9eafa00347b1ee8356356cba2ae8176427c

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

Filesize
79KB

MD5
e27da3be75c0470433d3a7e218fe8362

SHA1
82884a4f944e7dfd1e67d122b5d11d690bc65fd9

SHA256
9d72752b88a8981070d13c086813b0d35e38653ce4fe5279fc929cf5badf0294

SHA512
3cb47a8eaabc44d0853f3f0062904037aab735822766a235436510fede28e96f940cf1473056d605e412923936c46e6119cc6a7ac180f70f25e499e164e00cfe

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

Filesize
79KB

MD5
e27da3be75c0470433d3a7e218fe8362

SHA1
82884a4f944e7dfd1e67d122b5d11d690bc65fd9

SHA256
9d72752b88a8981070d13c086813b0d35e38653ce4fe5279fc929cf5badf0294

SHA512
3cb47a8eaabc44d0853f3f0062904037aab735822766a235436510fede28e96f940cf1473056d605e412923936c46e6119cc6a7ac180f70f25e499e164e00cfe

Download Submit
memory/1912-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/5100-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/5100-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads