Analysis
- max time kernel
152s - max time network
164s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
02/06/2024, 22:29
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe
Resource
win7-20240221-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe
- Size 76KB
- Sample240602-2efreaad89
- SHA256 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424
- MD5 35e6553966b2b9f659b315f2448d8ee3
- SHA1 89c5cc10ed81ed3d1e3a829e692f4907fc6c043c
- SHA512 33f73ae37e22ca29c17c4df1f96b7d20c354f87463098fffd3d8ca14253a7d38734d789590dd31db0a0d6ce10a55a25ed252ac585f7849d75178666940f532f6
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOzw:RshfSWHHNvoLqNwDDGw02eQmh0HjWOs
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3764 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.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 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe File created C:\Windows\SysWOW64\¢«.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\system\rundll32.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe File opened for modification C:\Windows\system\rundll32.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe - Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717367396" 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 Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717367396" 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\" %*" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3764 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 3764 rundll32.exe 3764 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4972 wrote to memory of 3764 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 89 PID 4972 wrote to memory of 3764 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 89 PID 4972 wrote to memory of 3764 4972 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe"C:\Users\Admin\AppData\Local\Temp\585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.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:4972 -
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:3764
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4240 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:81⤵PID:2644
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 84KB
- SHA256 195ba8b81f432d2405b7be6b5d6c72327ac168753ac175bd454667470df83fc0
- MD5 78f6f9e77a094f0237ac78127a003454
- SHA1 8693701f18d1f1f54d311dcdcafe8bde296aff91
- SHA512 4abda1002c1ec737c176c6d157c958422d5a29dddddce01c33c06fede3f8da137ebe45aacdd5ab4108c4d8976744ba3d748dfde4cfed14094d6007cc49b45ec2
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO4HAJnnpl:GhfxHNIreQm+HiLHAJnnpl
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System\rundll32.exe
- Size 80KB
- SHA256 e42fcc29c445c5891158a0e3b391479ac91387b3e8e8373fb932d7936b7fd226
- MD5 1be407725097becd42d4061edd222303
- SHA1 7d437c130c1a98ed4f528d90bfe48d2468ef15f7
- SHA512 b728c0139f01b91ffe6bf368efa2831d1c78327cf83a3b7ef2a6116d72b76abfd2ba9ad4bbb6a7f989edf07d9103c3da85a560dd852514faf2289b55e3dbe5cb
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOzARKg:GhfxHNIreQm+HiUARKg
- MD5 SHA1 SHA512 SSDEEP