Analysis
- max time kernel
120s - max time network
120s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system - submitted
09/06/2024, 01:01
Behavioral task
behavioral1
Sample
Skiioh_0_delay.exe
Resource
win7-20240221-en
4 signatures
300 seconds
Behavioral task
behavioral2
Sample
Skiioh_0_delay.exe
Resource
win10v2004-20240508-en
10 signatures
300 seconds
Behavioral task
behavioral3
Sample
Skiioh 0 delay.bat.pyc
Resource
win7-20231129-en
5 signatures
300 seconds
Behavioral task
behavioral4
Sample
Skiioh 0 delay.bat.pyc
Resource
win10v2004-20240508-en
3 signatures
300 seconds
General
- Target Skiioh 0 delay.bat.pyc
- Size 40KB
- Sample240609-bdqbcabg82
- SHA256 9c9f368f8d6c92ffc079018e87d171300c9710b0836667eac272203600c9bb7c
- MD5 eeb30578e29c763f7daf9395feb76a21
- SHA1 2dbde7e9a835ca02e11e6209f1ba90bbe5790661
- SHA512 6f4515ce524fada02a2fac6207b5f884997a1393384e90d502c14f45d3907427cc90389c755d81db0066c19d70aa42083a1e21248c89e1ebb66d9d1f1d213378
- SSDEEP 768:7FGYfX/18cTiTlC66aEBfMXvfsiBttbMsnjqmnrD/4mq:3X/ScHWkiBt95eQrC
- MD5 SHA1 SHA512 SSDEEP
Score
3/10
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pyc\ = "pyc_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pyc rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pyc_auto_file\shell\Read\command rundll32.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2892 AcroRd32.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2892 AcroRd32.exe 2892 AcroRd32.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2244 wrote to memory of 2684 2244 cmd.exe 29 PID 2244 wrote to memory of 2684 2244 cmd.exe 29 PID 2244 wrote to memory of 2684 2244 cmd.exe 29 PID 2684 wrote to memory of 2892 2684 rundll32.exe 30 PID 2684 wrote to memory of 2892 2684 rundll32.exe 30 PID 2684 wrote to memory of 2892 2684 rundll32.exe 30 PID 2684 wrote to memory of 2892 2684 rundll32.exe 30
Processes
-
C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\Skiioh 0 delay.bat.pyc"1⤵
- Suspicious use of WriteProcessMemory
PID:2244 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Skiioh 0 delay.bat.pyc2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2684 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Skiioh 0 delay.bat.pyc"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2892
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
- Size 3KB
- SHA256 513d8bbc40e3fd39904a8048e633011cf6f754ff36b4bd34ab87cd8f86a1b1c5
- MD5 f184c328dc97fbf8580370b8a201dc84
- SHA1 d01c1b25c393f421a3cf21f354b0d336d20f3300
- SHA512 d80cab6074f8526ddafddc536f97a6841c36b2be3d9b59a2f01b2420637abf0c0c3ba707db0c719d5bf2191027339471942d1694afd5ca8a24619e78b0074d0e
- MD5 SHA1 SHA512