Analysis
- max time kernel
149s - max time network
103s - platform
windows11-21h2_x64 - resource
win11-20250619-en - resource tags
arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system - submitted
14/07/2025, 06:06
Behavioral task
behavioral1
Sample
a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe
Resource
win10v2004-20250619-en
windows10-2004-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe
Resource
win11-20250619-en
windows11-21h2-x64
12 signatures
150 seconds
General
- Target a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe
- Size 79KB
- Sample250714-gtsz3aythy
- SHA256 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5
- MD5 027dee8bc3db2ea429d983da734a6356
- SHA1 137710473c338706291a310b6d837ec7b3e2e340
- SHA512 9df8814301ebb0c1a5f80d650543a2342db3742f962b7d17a01ecbdcbdfe72e9a7115b7e446cdd2aabee2bac284c51055b89c2bd42db04340346d8fed9eeab42
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOT2D8P:GhfxHNIreQm+Hi22D8P
- MD5 SHA1 SHA512 SSDEEP
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
- Qqpass family
- Executes dropped EXE 1 IoCs
pid Process 1516 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.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 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe File created C:\Windows\SysWOW64\¢«.exe a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe File created C:\Windows\SysWOW64\notepad¢¬.exe a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\system\rundll32.exe a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe File opened for modification C:\Windows\system\rundll32.exe a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.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 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Modifies registry class 19 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.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 Key created \REGISTRY\MACHINE\Software\Classes\MSipv a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1752473174" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.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\exefile\shell\open\command a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1752473174" 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 - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1516 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 1516 rundll32.exe 1516 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5852 wrote to memory of 1516 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 78 PID 5852 wrote to memory of 1516 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 78 PID 5852 wrote to memory of 1516 5852 a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe 78
Processes
-
C:\Users\Admin\AppData\Local\Temp\a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.exe"C:\Users\Admin\AppData\Local\Temp\a8bf3b5bf2de2f726247daded0cdb8d3033668dff75be3743c18b5115da2edc5.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:5852 -
C:\Windows\system\rundll32.exeC:\Windows\system\rundll32.exe2⤵
- Executes dropped EXE
- Modifies system executable filetype association
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1516
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 81KB
- SHA256 3dc922c865c3f40b5e2bd53324b658f8254cd6e82727b41176581b9533e6a8cf
- MD5 b01add4559dbd9062ca256527664a585
- SHA1 c160acd5be7bb6150dadb28c4d8e66b0fc7011f6
- SHA512 ca343dda14ea49df4e3c1de435055f31c59c6f42dc0e357fa245d93df0e5d649f3b669b5f2c24a8dbff61e1aad7fbef08bb4fd1a823ae12584d7921ce63b5705
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOXb9kvq:GhfxHNIreQm+HiUb9kvq
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System\rundll32.exe
- Size 77KB
- SHA256 b463c6307490f914fe3dadf3a163fc29bfd60d10925b2d520443514ae27720fa
- MD5 e434408c5430a68b48e2f526cfb89496
- SHA1 30a3a7981491c2407784be8121ff318872c8b81f
- SHA512 be100cbc05c2feb7236b22e1e78e8ab7b5341c7981836a8bbc664c02768a59d90964254cdd696a3038ea352efe1825ad4fc65e2adf5e41cb60dcbbf62ade58e1
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWObXHz:GhfxHNIreQm+HiyXHz
- MD5 SHA1 SHA512 SSDEEP