Analysis
- max time kernel
150s - max time network
115s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
28/10/2026, 04:31
Behavioral task
behavioral1
Sample
cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe
Resource
win10v2004-20260911-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe
Resource
win11ltsc2024-20260911-en
12 signatures
150 seconds
General
- Target cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe
- Size 86KB
- Sample261028-e5t1dsxs7j
- SHA256 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74
- MD5 5288202883fd4d10709c8a95a325bd1c
- SHA1 116cb54e8742a85265ba090c8180a1bb4fd2ad37
- SHA512 0c6276e5e2748f98a1426813888ccc2c30d9353eaba0401828d549afacbd86a3e954115fd235f4659e67cd6902ecdb9745a4d6b61fe20bf4c4efc78ea65c76a5
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOyfpkP0:GhfxHNIreQm+Hi3fpkP0
- TLSH T1EC831A6BB0E644B9F43456B06AAA17F3C537B660023647CF3758CE69753E0366B2D283
- 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 6068 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.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 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe File created C:\Windows\SysWOW64\¢«.exe cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe File created C:\Windows\SysWOW64\notepad¢¬.exe cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe File created C:\Windows\system\rundll32.exe cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.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\Hostname rundll32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 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 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Modifies registry class 15 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.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 Key created \REGISTRY\MACHINE\Software\Classes\MSipv cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.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 (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1793161916" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1793161916" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 6068 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 6068 rundll32.exe 6068 rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3292 wrote to memory of 6068 3292 cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.exe"C:\Users\Admin\AppData\Local\Temp\cff05e99237528fc7cc00dea5e007af1e8e07a91840084cc091328d436cf7b74.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:3292 -
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:6068
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 78KB
- SHA256 6cca9918785761d8b1b3487c798725269bf977c3c32b86214b660ae2b3a670e7
- MD5 6bb53318462ad68f564470ec2accdc67
- SHA1 1c8378870d1a39a670f3f24c22bfc0231a839055
- SHA512 c157e4adab7da522940ca105ae52540982d0d5667000f9fc8bffd253108db9819262c164af660913bd557f1f2698da5883db24354439ab5eb7e7c3ae9aeb4765
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOCsYvdG:GhfxHNIreQm+Him
- TLSH T15D734A9F70D584B9F834527019AB07F28577BA50123A5BCF3B98CE79A53A1365B3C283
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System\rundll32.exe
- Size 82KB
- SHA256 458687b825c4a514e254f0f39957f6d47415d809722c572a10c0871f994e08f7
- MD5 d3fc0d0833a56e2160468d1b2b5be9e5
- SHA1 97d1df77eb101521fb5a6eec7a8cc24051e56544
- SHA512 231aac188039226a08bc2d978f9e43bd646aa2e0bc0fc4f6cf2e8a2bcfa8754e3f12f1232dab91fd3f9e9c59596898d6237a313eb0f08c16b5e289048fb40040
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOEwWnV9p:GhfxHNIreQm+HibwWnV9p
- TLSH T177833A5FB0E544B9F83456B065AA07F2C177B550123A4BCF3B98CE69B53E1326B2D283
- MD5 SHA1 SHA512 SSDEEP TLSH