Analysis
- max time kernel
149s - max time network
126s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/10/2026, 03:36
Behavioral task
behavioral1
Sample
d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe
Resource
win10v2004-20260911-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe
Resource
win11ltsc2024-20260911-en
12 signatures
150 seconds
General
- Target d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe
- Size 79KB
- Sample261002-d6d5ws1fqe
- SHA256 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd
- MD5 a678046683d79b44c0c715b95b9ddfb4
- SHA1 e73dbddc7bb87e83aaaea161b4f16942ab968832
- SHA512 f48df2538ba21bc790aad6b19fb102da9f36676138987bf1c0bd09b1b3732a18ef3b5f7a69c07d21042dacae569c745366304be0715bafa4f6dcbe901885b3e5
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOX/n:GhfxHNIreQm+Hic/n
- TLSH T1A4834A9F74D584B9F83452B029AA17F28533B550023A5BCF3B98CE79A53E1365B3D283
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Extracted
Family
-
qqpass
C2
-
http://www.zigui.org/article.php?id=103822
Attributes
-
url
http://www.mxm9191.com/myrunner_up.exe
-
user_agent
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3584 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.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 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe File created C:\Windows\SysWOW64\¢«.exe d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe File created C:\Windows\SysWOW64\notepad¢¬.exe d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe File created C:\Windows\system\rundll32.exe d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain rundll32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname rundll32.exe - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\MSipv d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1790912220" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1790912220" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 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¢¬ %1" d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3584 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 3584 rundll32.exe 3584 rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1560 wrote to memory of 3584 1560 d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe"C:\Users\Admin\AppData\Local\Temp\d526f3549f9b31201ed6a374bf316dc44de6c226303eb5cf774a6a194d8666dd.exe"1⤵
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1560 -
C:\Windows\system\rundll32.exeC:\Windows\system\rundll32.exe2⤵
- Executes dropped EXE
- Modifies system executable filetype association
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:3584
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 79KB
- SHA256 5dd2d8e46e77497ddd1df1f2ae64b4bb0abb1c215f485957f8c1156660b6a002
- MD5 da94d031d7e1f818ded58a585ed3152a
- SHA1 a6451becfc9a4954ed909fc47cffc18ffa1a7f21
- SHA512 dc977641f79d62678f1c44e5b12c6b8ef38c9becb861eab6b07ea026551e22bea9b0596c68042965c8c69eb35fb0fe461a1e341254bfd204dd8e97e9bfad190a
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOFan1+:GhfxHNIreQm+HiKan1+
- TLSH T1B5834B9F70D544B9F8345270296A07F28577B96012364BCF3B98CE79B53E1366B2D283
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System\rundll32.exe
- Size 73KB
- SHA256 13cd0eb0d1b9065937173ff5e79f8b5088e0690d65e60d3782a491366697d2e3
- MD5 d2c0dd76e05e3ed2106089468b2d65a2
- SHA1 642967312de7e370e19515651b6cb460bec6e87e
- SHA512 8e9c96fe25347aa869797e0ceba8adf0d74ad34a76a24e4fb9eb23dfdfe521b130802e3b2c8ee303f365b2bce51e70ff7bd211645c0c20b79a7ceba5d0dfc69a
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOZ:RshfSWHHNvoLqNwDDGw02eQmh0HjWOZ
- TLSH T1CB734B8F74D488BDFC2456B4146B1BB08577AA44123A5BCB3BA8CD7D953B1275B3C283
- MD5 SHA1 SHA512 SSDEEP TLSH