b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd

General

Target

b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Size

80KB
MD5

3f85cd3eb373e841744a079d063e177f
SHA1

8a74be7c0d0a0f8b46be2d9138094e921cf152b9
SHA256

b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd
SHA512

47fea0c033f05683e82751d738b46f736f98b3c176963e69073e7e0cbef3d64bd86f8c33bea5e76cb301c96d200a7a0b8c438a256833610d139dd06c53245797
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOs:RshfSWHHNvoLqNwDDGw02eQmh0HjWOs

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2232	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.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\" %*"	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.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
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
File created	C:\Windows\SysWOW64\¢«.exe	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
File created	C:\Windows\system\rundll32.exe	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715977470"	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	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715977470"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2232	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
2232	rundll32.exe
2232	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 2232	2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe	28
PID 2452 wrote to memory of 2232	2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe	28
PID 2452 wrote to memory of 2232	2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe	28
PID 2452 wrote to memory of 2232	2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe	28
PID 2452 wrote to memory of 2232	2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe	28
PID 2452 wrote to memory of 2232	2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe	28
PID 2452 wrote to memory of 2232	2452	b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe	28

C:\Users\Admin\AppData\Local\Temp\b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
"C:\Users\Admin\AppData\Local\Temp\b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.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:2452
- 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:2232

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
82KB

MD5
441da67bc530f004484def56d20d5ed7

SHA1
1fb772ea741b97ca000307bd998871bb157e6452

SHA256
38713b3193290cdf0d59106e8bebb567f9730f75cfd19179b21f4c4659bd88fd

SHA512
b153208b2c364e64976a435b3796a59c61e87a23e29b4ee0e15c422ac23b556cf2b8968f1aabfe6bdb56c62aa2e70f846d41ab28a179cd1ff3e11b11b94b621e

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
8a6ddb1e8acd9bb8575813731ccffde5

SHA1
b64d432b9c04e8e9e45f736f655f03822e30ecbb

SHA256
9ffd1d89b182ba1ea762cc387c47ed41bcb500529317c1f0972d89d30a547259

SHA512
2293231f586becbe418c79d474d890f9f8e6dba82da1477b06db6826c84603067ed51d0be4cfdc28e40bfceffc7f189cceb66254b7c5557cfd772463683e170a

Download Submit
memory/2232-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2452-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2452-12-0x0000000000280000-0x0000000000296000-memory.dmp

Filesize
88KB

Download
memory/2452-19-0x0000000000280000-0x0000000000296000-memory.dmp

Filesize
88KB

Download
memory/2452-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads