Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system - submitted
26/04/2024, 10:22
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe
Resource
win7-20240221-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe
Resource
win10v2004-20240412-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe
- Size 81KB
- Sample240426-mekb9sed36
- SHA256 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091
- MD5 5208e4874770c2362cb85b59343f8afc
- SHA1 48d82e8c0a303a7278a5d963d1fe5892ef987d5a
- SHA512 eceec44d18e70fa36f159306a4e78b530395d97c85921c72ee347e6260ad3620c76c29ca0405429f7b3ae8377ea14ae87bc2271d99f2a846f03b564585c64bb7
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOnMoF6A:GhfxHNIreQm+HiMMoF6A
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 388 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.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 created C:\Windows\SysWOW64\notepad¢¬.exe 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe File opened for modification C:\Windows\SysWOW64\¢«.exe 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe File created C:\Windows\SysWOW64\¢«.exe 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe File created C:\Windows\system\rundll32.exe 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe - Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1714126962" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1714126962" rundll32.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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.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\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 388 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 388 rundll32.exe 388 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4180 wrote to memory of 388 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 90 PID 4180 wrote to memory of 388 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 90 PID 4180 wrote to memory of 388 4180 677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe"C:\Users\Admin\AppData\Local\Temp\677ba24466e93874deccf735cb131a0bd718e7ec9ea16ceee8c0b7fcfe30f091.exe"1⤵
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4180 -
C:\Windows\system\rundll32.exeC:\Windows\system\rundll32.exe2⤵
- Executes dropped EXE
- Modifies system executable filetype association
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:388
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 75KB
- SHA256 407d0c68b957d58cac561fbb5154c40745ac25ac58f28d7ab3acd27ffbb0efcd
- MD5 8cc5f007bca66e2d5beeb9ba7cf05906
- SHA1 abaf99ea36010e62cf2caac083df7f81e07626b3
- SHA512 39d22145ac61da43298bf40ec31e746c1ec941441d3ee1cb9afd2e11fcf11ea744b0f46f107ddf847cceadbcc47cd5d4b9180c6c17420978df4ed5777d2278df
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOWw:RshfSWHHNvoLqNwDDGw02eQmh0HjWOWw
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\system\rundll32.exe
- Size 77KB
- SHA256 6eca66edfc56cc9fd085c10674ab9406ac0e72e9c38802ab798cfd58296fbe36
- MD5 dc8028f83021cb5abe2ab94bb6938a8d
- SHA1 fa38e55d94efbd3d8c33eb6173df4c218a9d3e21
- SHA512 0ed624fd26b7693ee78a1420d063fa77c3ea33dd364ec5114889dfb7de894a0559090380f2d7ebffdcac8080a23a15d07096359ae44e7ce84c20a64701ade3ab
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOyMhFu:GhfxHNIreQm+HiRMhFu
- MD5 SHA1 SHA512 SSDEEP