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Overview
overview
10Static
static
10virussign....50.exe
windows7-x64
7virussign....50.exe
windows10-2004-x64
7virussign....77.exe
windows7-x64
7virussign....77.exe
windows10-2004-x64
7virussign....f2.dll
windows7-x64
1virussign....f2.dll
windows10-2004-x64
1virussign....1f.exe
windows7-x64
10virussign....1f.exe
windows10-2004-x64
10virussign....cd.exe
windows7-x64
7virussign....cd.exe
windows10-2004-x64
7virussign....e8.exe
windows7-x64
5virussign....e8.exe
windows10-2004-x64
5virussign....b9.exe
windows7-x64
5virussign....b9.exe
windows10-2004-x64
5virussign....61.exe
windows7-x64
5virussign....61.exe
windows10-2004-x64
5virussign....94.exe
windows7-x64
5virussign....94.exe
windows10-2004-x64
5virussign....9f.exe
windows7-x64
10virussign....9f.exe
windows10-2004-x64
10virussign....b3.exe
windows7-x64
10virussign....b3.exe
windows10-2004-x64
10virussign....93.exe
windows7-x64
7virussign....93.exe
windows10-2004-x64
7virussign....8a.jar
windows7-x64
1virussign....8a.jar
windows10-2004-x64
1virussign....32.exe
windows7-x64
7virussign....32.exe
windows10-2004-x64
7virussign....02.exe
windows7-x64
5virussign....02.exe
windows10-2004-x64
5virussign....07.exe
windows7-x64
1virussign....07.exe
windows10-2004-x64
3Analysis
-
max time kernel
149s -
max time network
130s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
31/01/2025, 18:47
Behavioral task
behavioral1
Sample
virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral3
Sample
virussign.com_eaaf615aa5e8154699b86613ef98de77.exe
Resource
win7-20241010-en
Behavioral task
behavioral4
Sample
virussign.com_eaaf615aa5e8154699b86613ef98de77.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral5
Sample
virussign.com_eb1164afcd72b42faf1ed16fe69415f2.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
virussign.com_eb1164afcd72b42faf1ed16fe69415f2.dll
Resource
win10v2004-20250129-en
Behavioral task
behavioral7
Sample
virussign.com_eb1a20a14bfd42ddd3c295062ff4c91f.exe
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
virussign.com_eb1a20a14bfd42ddd3c295062ff4c91f.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral9
Sample
virussign.com_eb4dc797b31871c193bd57e75feda4cd.exe
Resource
win7-20240903-en
Behavioral task
behavioral10
Sample
virussign.com_eb4dc797b31871c193bd57e75feda4cd.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral11
Sample
virussign.com_ec6cca2542808661cbc8b554736f52e8.exe
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
virussign.com_ec6cca2542808661cbc8b554736f52e8.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral13
Sample
virussign.com_ecb767dd467a854cb9068795c708edb9.exe
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
virussign.com_ecb767dd467a854cb9068795c708edb9.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral15
Sample
virussign.com_ecc04a1ce003b4a5edb12825179f3a61.exe
Resource
win7-20240708-en
Behavioral task
behavioral16
Sample
virussign.com_ecc04a1ce003b4a5edb12825179f3a61.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral17
Sample
virussign.com_ed168bd396c4fdc03053f5b02fcf6994.exe
Resource
win7-20240903-en
Behavioral task
behavioral18
Sample
virussign.com_ed168bd396c4fdc03053f5b02fcf6994.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral19
Sample
virussign.com_edbc11f0b4f0a9f3964923415573569f.exe
Resource
win7-20241010-en
Behavioral task
behavioral20
Sample
virussign.com_edbc11f0b4f0a9f3964923415573569f.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral21
Sample
virussign.com_eec6bc403630659c6ed893e51572f6b3.exe
Resource
win7-20241023-en
Behavioral task
behavioral22
Sample
virussign.com_eec6bc403630659c6ed893e51572f6b3.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral23
Sample
virussign.com_eef74eda1855b3cf10300926cc0e0693.exe
Resource
win7-20240903-en
Behavioral task
behavioral24
Sample
virussign.com_eef74eda1855b3cf10300926cc0e0693.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral25
Sample
virussign.com_f0b6e9f132c0d0549c401fe8943b708a.jar
Resource
win7-20240903-en
Behavioral task
behavioral26
Sample
virussign.com_f0b6e9f132c0d0549c401fe8943b708a.jar
Resource
win10v2004-20250129-en
Behavioral task
behavioral27
Sample
virussign.com_f0d49bace28a764cdbca55aafbd5da32.exe
Resource
win7-20240903-en
Behavioral task
behavioral28
Sample
virussign.com_f0d49bace28a764cdbca55aafbd5da32.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral29
Sample
virussign.com_f201c60260bf5daf402404b095776202.exe
Resource
win7-20240903-en
Behavioral task
behavioral30
Sample
virussign.com_f201c60260bf5daf402404b095776202.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral31
Sample
virussign.com_f34196caf20b1d0c9aca4ecca9fca907.exe
Resource
win7-20241010-en
Behavioral task
behavioral32
Sample
virussign.com_f34196caf20b1d0c9aca4ecca9fca907.exe
Resource
win10v2004-20250129-en
General
-
Target
virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe
-
Size
694KB
-
MD5
e9db7f543abe55498e2fe9e81adbd150
-
SHA1
733744d9a70cd274c03136ff77fdf4e2e92ef3b8
-
SHA256
eaf8a5f8274a994a5102074b58d341d6d5f8bead8ef8ff1eef1c1a233d621ac9
-
SHA512
a4cc8e5b0c15c0a6e1c6a665dbbf0b05ccefd89d5f78f31eba08bdc9e409248cc169a6a10adfe1bc3c282854ad37247a9d27f714db1dc953b6e63f7f2b8292ab
-
SSDEEP
768:5BBdFYDgao5/AUrLEEzayTpBJfxBDlxcFNXK8D1Foj/:5pcC/eAayJ3Rx0g
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 560 rundll32.exe -
Loads dropped DLL 2 IoCs
pid Process 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.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\" %*" virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" virussign.com_e9db7f543abe55498e2fe9e81adbd150.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 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\¢«.exe virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe File created C:\Windows\SysWOW64\notepad¢¬.exe virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\system\rundll32.exe virussign.com_e9db7f543abe55498e2fe9e81adbd150.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 virussign.com_e9db7f543abe55498e2fe9e81adbd150.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 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1738349327" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1738349327" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "505" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.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\txtfile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 560 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 560 rundll32.exe 560 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1448 wrote to memory of 560 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 31 PID 1448 wrote to memory of 560 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 31 PID 1448 wrote to memory of 560 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 31 PID 1448 wrote to memory of 560 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 31 PID 1448 wrote to memory of 560 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 31 PID 1448 wrote to memory of 560 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 31 PID 1448 wrote to memory of 560 1448 virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe 31
Processes
-
C:\Users\Admin\AppData\Local\Temp\virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe"C:\Users\Admin\AppData\Local\Temp\virussign.com_e9db7f543abe55498e2fe9e81adbd150.exe"1⤵
- Loads dropped DLL
- 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:1448 -
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:560
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
708KB
MD5fb7e5a5a2de13cad4aa40b24648e39de
SHA106da91474f8be3fcdf7ebefeaf1afb4caa2d7a21
SHA2564c765793139c1cfc24e769928e0f88c72dd2a9bb1a42e87a3b68fd57378206b2
SHA5128b072902c6998a98e2b17f9b25470b24636a536715c64eb5728a3745c2d6e37a0752b5ebe3c250985fd7094447dd696b4e3ea86f07dfa8332717b12ba7492115