Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
26/04/2026, 04:13
Behavioral task
behavioral1
Sample
2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe
Resource
win10v2004-20260130-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe
Resource
win11-20260130-en
11 signatures
150 seconds
General
- Target 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe
- Size 74KB
- Sample260426-etca7sds2v
- SHA256 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683
- MD5 11304cefd4c79753bb6d383707c9f1b0
- SHA1 629703ff5fffbbe2683a89f2714748565d04bfb3
- SHA512 d72a12380f18fe901f52e6a54e3e1313a742821fc4d89aac6898a2803421b73c6c311a733ced7551d07985741ac88ff630c69269f989a1fa00e2b8f145670312
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOr+:RshfSWHHNvoLqNwDDGw02eQmh0HjWOr+
- TLSH T112735B9F74D584BDFC2452B0146B1BB18577AA40123A5BCB3BA8CE7D953B1275B3C283
- 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 1272 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.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 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe - Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\notepad¢¬.exe 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe File opened for modification C:\Windows\SysWOW64\¢«.exe 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe File created C:\Windows\SysWOW64\¢«.exe 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe File created C:\Windows\system\rundll32.exe 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.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 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Modifies registry class 19 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1777176821" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1777176821" 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 Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1272 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 1272 rundll32.exe 1272 rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1544 wrote to memory of 1272 1544 2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.exe"C:\Users\Admin\AppData\Local\Temp\2421d7e7465314fd2e4979489de4cb50579f3b4b0be063deb584a9d0e9b3a683.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:1544 -
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:1272
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 79KB
- SHA256 aef6881c7d9d3ec0c8c8eaf127cdf89811593a6c7656ca6cf2da0ff14a741141
- MD5 abe0f2c1c18732d8d16b258ad7c26b93
- SHA1 3e7217a3338aee3085613413981073793bd78461
- SHA512 f4d978fd86a5e7da6c88d88daabb2164b51cdd306b334a7a10f547c1c6f8f17c23caf12fc72379dcc9d689e1d062cc3f6e9b230ea00c84f4316b2a5c2968dc81
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOkO1UrURUtUJUc:GhfxHNIreQm+HivOaQeimc
- TLSH T15D834A9F74D544BAF83456B0156A07F28677BA50023A4BCF3B98CE79A53A1365B3C283
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System\rundll32.exe
- Size 85KB
- SHA256 79061978233f1076bcc29ec3aa69b7ab295bd8a6c3a94e906a1dffd7e4db2d0f
- MD5 25b67f4eec9f6ff400397ba594ca280b
- SHA1 34522ee56396d31d6d5759bfcd925d557cfad931
- SHA512 d3e4768c745623cf5e461b182e84f11ee4c79d1e6bdff60cf56d982371c56b3707d6c226d5e5b79a4ccd01662d2e66b7a871aed3539800e64db4d955d281618f
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOw7eMRkVKVbQ:GhfxHNIreQm+HiT7eMRkVKVbQ
- TLSH T116833B6BB4E644B9F43452B066AA46F2D133766012354BDF3B98CF79753E0326B2D283
- MD5 SHA1 SHA512 SSDEEP TLSH