6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214

General

Target

6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
Size

77KB
MD5

d820bcb9b950d80f0d98f145bb02941e
SHA1

0284cd9f050d38bf022001c8d90a4c4a034562f2
SHA256

6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214
SHA512

9f66afa5fd9345984dc877db0c85eefcc80bf329f8b734aab342223a9df02bb25357dc0bfcc2d07c4fb683258f9c6b21e86be059bf6fc6d03be221d9c1b72de4
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO+f/O:GhfxHNIreQm+Hipf/O

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1304	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	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	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
File created	C:\Windows\SysWOW64\¢«.exe	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
File created	C:\Windows\system\rundll32.exe	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\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\exefile\shell\open\command	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1698979207"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1698979207"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1304	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
1304	rundll32.exe
1304	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 1304	3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe	87
PID 3004 wrote to memory of 1304	3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe	87
PID 3004 wrote to memory of 1304	3004	6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe	87

C:\Users\Admin\AppData\Local\Temp\6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.exe
"C:\Users\Admin\AppData\Local\Temp\6a33a1dc59de64a848f1e6e9730c16675c29003f0f81918c4ebacdc38fdb1214.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:3004
- 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:1304

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
80KB

MD5
47d20fd10c319da8929222d9f78bfab3

SHA1
f7a0f3016694881116f754ab7ec712adf727263a

SHA256
aa98477612e380501d1db421d3780b8a28c229770a6025775a5db30c73d0e2cd

SHA512
9e0e88d7e03ee77e23a64646c82d387582d612c60cc50b16a785fae33ac4a9d55891beeedf4817e21eada340e9f8dd4b563fafc2cd93fbbac17f9e4b8cc1613b

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

Filesize
85KB

MD5
128bc8768b301d88bcca1378eb05f5e9

SHA1
f979d4f3c589baf9d69759f143cb0c70380b127f

SHA256
70a1a516d6dc3a243e8f89400cd4258f6943acfa9edc547561232b44c3173199

SHA512
88eb0984d52be8e6ab6e68d70b492d620831e7fbf0ceba063066317c18c8d465c302c399fd2bd334423129d98902e6655c9d5516993f2e36fc5558922ada7b52

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

Filesize
85KB

MD5
128bc8768b301d88bcca1378eb05f5e9

SHA1
f979d4f3c589baf9d69759f143cb0c70380b127f

SHA256
70a1a516d6dc3a243e8f89400cd4258f6943acfa9edc547561232b44c3173199

SHA512
88eb0984d52be8e6ab6e68d70b492d620831e7fbf0ceba063066317c18c8d465c302c399fd2bd334423129d98902e6655c9d5516993f2e36fc5558922ada7b52

Download Submit
memory/1304-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3004-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3004-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads